[Official] Car Audio thread


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This thread will serve as neowin's unofficial car audio thread, post your set ups, pics, and questions here :) i'll start:

HU: Pioneer DEH-1300MP

Speakers: 2 Bose 5 1/2 2way Door speakers ( w/factory amps), 2 Pioneer 300watt (160w rms) 3 way 6x9's, 1 10" Kicker Comp 300w (150w rms) Subwoofer

Amplifier(s): 4 Bose factory amps for door speakers and rear shelf ( 1 amp per speaker), 1 Kenwood KAC-5205 350w (150w rms) Amplifier

Enclosure: Sealed

Car: 1997 Cadillac Eldorado ETC w/ 32v NorthStar V8

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Ok, issue:

Head unit: Pioneer DEH-1300MP

I have to reconfigure the deck every time i turn the car on, after it's been off for awhile Since adding the 10" Kick sub and Kenwood KAC-5204 Amplifier this past Tuesday.

Here's some pics of my wiring if that helps:

rm5shj.jpg

op1gea.jpg

j5a6gy.jpg

Here's the HU wiring diagram

http://a248.e.akamai.net/pix.crutchfield.com/manuals/130/130deh1300.pdf

i can post pics of my car's wiring if need be

Ok 1 why the fk did you do it that way? and 2 that is a complete hack job even though you used the nice barrel connectors. 1st rule in stereo rewiring you don't hack the factory harness. You bought a luxury car expect luxury prices.

I don't think anyone in their right mind would help you without being there at this point. If I were to see this in person I would cringe and be mfing it the whole way through. This is the way my FIL did it and I refused to be apart of it, after he was done he had a few issues that he would live with.

http://www.installer.com/cars/by_car.php?carid=773

If you ask me you fked up the constant hot and the key on hot or somehow you fked up the remote. I have no clue how you have the remote signal wire to the amp hooked up....again crappy hack job all I see are a jumble of wires that mean nothing.

Ok 1 why the fk did you do it that way? and 2 that is a complete hack job even though you used the nice barrel connectors. 1st rule in stereo rewiring you don't hack the factory harness. You bought a luxury car expect luxury prices.

I don't think anyone in their right mind would help you without being there at this point. If I were to see this in person I would cringe and be mfing it the whole way through. This is the way my FIL did it and I refused to be apart of it, after he was done he had a few issues that he would live with.

http://www.installer.com/cars/by_car.php?carid=773

If you ask me you fked up the constant hot and the key on hot or somehow you fked up the remote. I have no clue how you have the remote signal wire to the amp hooked up....again crappy hack job all I see are a jumble of wires that mean nothing.

1st off this job was done by a shop, at least the HU, before i installed the amp and sub, which is what these pictures represent

2nd off, all i did was run the remote wire into the blue remote wire off the back of the deck

3rd off all i did also was connect the constant from the deck into the constant in the wiring harness.

Again this pics are pre sub & amp install, so yea i agree with you they made a mess of a job, but i didn't do what you see in those pics...

I am sorry you paid for that.

Try disconnecting the remote, tape up the bare end, disconnect the power to the new amp. See if the issue continues. If it does not reconnect the power and ground to the amp. See if the issue continues. Then finally reconnect the remote wire. I am guessing the remote wire is possibly shorting some where if the main power and the key on power are connected properly.

We don't know if it's the installation the problem, or the stereo itself. But yeah, that installation looks cheap. The company didn't even have a wire harness because I guess it costs a couple of dollars? If you buy a stereo deck from Crutchfield, they basically send you the harness free which you hook up to your stereo. Otherwise, this is what you get, mangled cables that can short each-other out and.... yeah...

I know this doesn't really help, but troubleshooting which of those cables could be the culprit seems messy and time consuming when you could just order a wire harness, and hook it up in a clean and mess-free installation that will work. And if it doesn't, then you know your stereo's the problem.

We don't know if it's the installation the problem, or the stereo itself. But yeah, that installation looks cheap. The company didn't even have a wire harness because I guess it costs a couple of dollars? If you buy a stereo deck from Crutchfield, they basically send you the harness free which you hook up to your stereo. Otherwise, this is what you get, mangled cables that can short each-other out and.... yeah...

I know this doesn't really help, but troubleshooting which of those cables could be the culprit seems messy and time consuming when you could just order a wire harness, and hook it up in a clean and mess-free installation that will work. And if it doesn't, then you know your stereo's the problem.

I was looking and that was the only site that lists one for his car. Crutchfield does not have one and it is an $80 wiring harness. It is lazyness (don't want to do the proper research, don't want to get the proper parts, don't want to tell the customer they have to wait till they get a part in) mixed in with not wanting to turn a customer away that causes this kind of crap. He will never be able to put in the stock radio again if he wanted to sell the car with a stock radio. Troubleshooting this will not be easy because of the way it was installed.

I am sorry you paid for that.

Try disconnecting the remote, tape up the bare end, disconnect the power to the new amp. See if the issue continues. If it does not reconnect the power and ground to the amp. See if the issue continues. Then finally reconnect the remote wire. I am guessing the remote wire is possibly shorting some where if the main power and the key on power are connected properly.

Resolved it last night, the red (HU) connected to Yellow(harness constant), and the yellow (HU constant) to Red (harness memory), thanks for your input and assistance, i do appreciate it. Heres a pic of the sub and amp in the trunk, i've yet to mount it down, gonna get some port holes drilled out next week.

I actually even tidy'd up the wiring in the HU, got it all taped and organized.

post-28499-0-03500000-1300462110.jpg

Glad you got it fixed :cool:

I can't tell in the jumble of wires how you have your amp hooked up, but I hope you ran it to your battery and have a short ground cable to a screw in your trunk somewhere.

The amp i have connected to the blue/white cable from the deck which in the manual is listed as "to system control terminal of the power amp or auto-antenna relate control terminal" also it's power is running along the passenger side to the positive terminal on my battery. My ground i have connected to my seat belt bolt ( had to remove the back seat bottom to access it )

The remote (blue/white cable) is just there to sense power. That tells the amp to come online when the head unit is on, and go offline when the head unit is off. You could rig a toggle switch to turn on and off that amp if you wanted to. That is all the blue/white is for, and I believe it is low amperage. The ground can go anywhere as long as it is connecting to bare metal at some point.

The remote (blue/white cable) is just there to sense power. That tells the amp to come online when the head unit is on, and go offline when the head unit is off. You could rig a toggle switch to turn on and off that amp if you wanted to. That is all the blue/white is for, and I believe it is low amperage. The ground can go anywhere as long as it is connecting to bare metal at some point.

Thanks for that, i'll research a toggle switch. the ground connection was a recommendation from Crutchfield and Performance Audio here in Kennewick WA, whom i should've gone to in the first place

  • 3 months later...

For the past couple of weeks I have contemplated buying a subwoofer for my car... I didn't want anything HUGE, as I don't it to over-power my speakers, I am just an amateur and want a bit more sound quality. Today, I purchased one!

For starters I got a Panasonic deck (not sure of model) with two MTX audio speakers in the front and two kenwood speakers in the back... I bought those at different times and only when there was a good deal. They perform wonderfully for the price I paid

I just purchased a 500 watt RMS clarion bass with a 500 watt RMS kenwood amp and a custom made box, should arrive within the next week, super stoked to get it all set up...

Here are links to the specific models I purchased:

http://www.clarion.com/ca/en/products/2011/audio/subwoofers/PXW1251/ca-en-product-pf_1259499534022.html

http://www.kenwoodusa.com/Car_Entertainment/Amplifiers/KAC-8105D

I ended up getting a little more power than I wanted, but it shouldn't hurt, as I said the MTX and kenwood speakers I can get to go pretty loud without distortion using just the aftermarket deck...

Once I get my own car I will get a much better audio system and probably leave this in my mom's car

I have enough to buy my own car but I'd rather not pay out the butt for insurance just yet!

I am interested to hear about all your set-ups!! :)

I've got stock chevy speakers (which are probably the best stock speakers in a lower model car dealer you can get), with 2 12 inch 1400watt Pioneer subs, and just a little 300w amp, one day i'll upgrade so I can get the full 2800 watts for the 2 subs. It's got lots of kick now as it is though.

Pretty nice for a first system OP... I've got a Kenwood KDC-x993 head unit, a pair of Rainbow SLX265 6.5" components, all hooked up to a MBQuart DSC480 amp. Sorta looking for a sub.... but sounds pretty good for what it is.

If you wanna get more into SQ, check out diyma.com ...most of these guys' systems are worth $1000's :)

I've got stock chevy speakers (which are probably the best stock speakers in a lower model car dealer you can get), with 2 12 inch 1400watt Pioneer subs, and just a little 300w amp, one day i'll upgrade so I can get the full 2800 watts for the 2 subs. It's got lots of kick now as it is though.

Nice! That would be too much for me, at least right now with the speakers I am using

Pretty nice for a first system OP... I've got a Kenwood KDC-x993 head unit, a pair of Rainbow SLX265 6.5" components, all hooked up to a MBQuart DSC480 amp. Sorta looking for a sub.... but sounds pretty good for what it is.

If you wanna get more into SQ, check out diyma.com ...most of these guys' systems are worth $1000's :)

Thanks for the link, looks like you have a pretty great set-up right now, congrats!

For the past couple of weeks I have contemplated buying a subwoofer for my car... I didn't want anything HUGE, as I don't it to over-power my speakers, I am just an amateur and want a bit more sound quality.

Not to pick on your purchase but your setup will be a typical boomer with very little sound quality. The sub you bought is for SPL not quality. The amp is fine but way more power than you need for a "didn't want anything huge". Your door panels and roof will be rattling bad in about 3-4 months. Just buying brand name aftermarket will usually blow away most factory stereos since they almost universally suck. They are getting better but very few use decent drivers. Anyway, your system will boom a lot. Try to play with the position of the sub, facing the trunk, facing the side, facing the seat, etc to get the best sound. Just aiming it at your back my not be the best sound you can get. It all depends on the type of bass you play, how far from the sub you are, the size of the trunk etc.

IMO stay away from anything Kenwood, they are kinda like the Ultra of car stereo.

Oh, my setup, Alpine 10, Eclipse headunit, pioneer elite 4channel, infinity 5.25. I was a custom installer for 3-4 years, pretty much used every brand out there in the 3 shops I worked for.

Oh, one question, did you get a ported or bandpass enclosure?

Here is my setup if you are interested and I love it and it's not crazy loud either :)

Head Unit: http://www.alpine-usa.com/product/view/ida-x305s/ (I have the model before this but is almost identical)

Sub: http://www.alpine-usa.com/product/view/swr-1223d/ (used to have 2 of these in a sealed box but my one alpine sounds better :p http://mobile.jlaudio.com/products_subs.php?series_id=16 )

Amplifier: http://mobile.jlaudio.com/products_amps.php?amp_id=439

Speakers: Stock (2008 Hyundia Elantra) best damn stock speakers I have ever heard, sounds better than my dad's Charger that came with Boston Acoustics.

Down the road I will be upgrading everything but I think I am going to wait until my car is paid off next year sometime. ;)

IMO Alpine and JL Audio is the best stuff you can buy when it comes to car audio when you are looking at sound quality, Memphis Audio is a great beginner brand to get you going and should be within almost everybody's price range :) In car audio the more you spend the better the quality :cool:

IMO Alpine and JL Audio is the best stuff you can buy when it comes to car audio when you are looking at sound quality, Memphis Audio is a great beginner brand to get you going and should be within almost everybody's price range :) In car audio the more you spend the better the quality :cool:

Not a bad setup. Sadly Alpine and JL Audio are among the best now. Most of the big names are no more in the car audio world (diamond, mb quart, ads etc). They still make some of those brands but they are just the name now, not the quality. Honestly the average quality is lower now than 10 years ago. They are charging alot for some crappy equipment. Especially amps, I personally dont like class D, even for subs. I have used that JL amp tho and its decent for sure.

Pioneer makes solid car audio gear. I got a unit from them and it's great. They make nice speakers as well. Can't go wrong with Pioneer it's also quite affordable as well. Sound quality is excellent.

Crutchfield is where I got it.... they got TONS of car audio gear...

Not a bad setup. Sadly Alpine and JL Audio are among the best now. Most of the big names are no more in the car audio world (diamond, mb quart, ads etc). They still make some of those brands but they are just the name now, not the quality. Honestly the average quality is lower now than 10 years ago. They are charging alot for some crappy equipment. Especially amps, I personally dont like class D, even for subs. I have used that JL amp tho and its decent for sure.

I used to have a Diamond D9 12" a few years back and it was from when they made good stuff. A lot of the major brands from a few years ago are just crap now, look at Eclipse, they used to make the best head units out there and now they are junk. JL, Alpine, and Memphis are about the best you can get now a days and they are kind of geared towards budgets :p JL is for the high roller, Alpine is the mid range budget and Memphis is low budget but still good quality. As for head units it's pretty much all Alpine or nothing now with the exception of Pioneers Premier line same with there subs and speakers.

Just because a sub or amp says it can do 1000w for around $100 bucks does not mean it's good and that goes for just about anything you buy outside of a authorized dealer/installer. All of Sony's car audio is junk and even Rockford Fosgate has gone down hill.... Something to remember in car audio is almost everything is going to be over rated power wise with the exception of the major brands like I listed, they are usually a little under rated so people don't fry them. :shifty:

A lot of sites that sell car audio are also not authorized to sell it either and you will get a deal but you will also get no warranty unless the site offers one but it will not be repaired by the manufacture. Always buy from a authorized dealer or site to insure you are getting the real deal and the best coverage ;)

Not to pick on your purchase but your setup will be a typical boomer with very little sound quality. The sub you bought is for SPL not quality. The amp is fine but way more power than you need for a "didn't want anything huge". Your door panels and roof will be rattling bad in about 3-4 months. Just buying brand name aftermarket will usually blow away most factory stereos since they almost universally suck. They are getting better but very few use decent drivers. Anyway, your system will boom a lot. Try to play with the position of the sub, facing the trunk, facing the side, facing the seat, etc to get the best sound. Just aiming it at your back my not be the best sound you can get. It all depends on the type of bass you play, how far from the sub you are, the size of the trunk etc.

IMO stay away from anything Kenwood, they are kinda like the Ultra of car stereo.

Oh, my setup, Alpine 10, Eclipse headunit, pioneer elite 4channel, infinity 5.25. I was a custom installer for 3-4 years, pretty much used every brand out there in the 3 shops I worked for.

Oh, one question, did you get a ported or bandpass enclosure?

Thanks a lot for your input, but yeah I DIDN'T want anything that would boom, but I failed to mention I got a FANTASTIC deal on the sub/box combo, too good to pass up, $150 for the pair (and free installation which costs about $80 here) - my friend started working at a car-audio place for the summer and he got a great deal on it for me -, so I went with it even though I didn't want something so powerful. And it is a ported box.

I plan on keeping the sub turned down fairly low, I will experiment, and again if it ends up booming too much, oh well, I spent $150, I can resell it for more. When I do look into getting a real car audio system (when I get my own car - as I said I am amateur right now and just starting out) I will be spending a lot more cash and will keep in mind the advice you gave, thank you again :)

Thanks a lot for your input, but yeah I DIDN'T want anything that would boom, but I failed to mention I got a FANTASTIC deal on the sub/box combo, too good to pass up, $150 for the pair (and free installation which costs about $80 here) - my friend started working at a car-audio place for the summer and he got a great deal on it for me -, so I went with it even though I didn't want something so powerful. And it is a ported box.

I plan on keeping the sub turned down fairly low, I will experiment, and again if it ends up booming too much, oh well, I spent $150, I can resell it for more. When I do look into getting a real car audio system (when I get my own car - as I said I am amateur right now and just starting out) I will be spending a lot more cash and will keep in mind the advice you gave, thank you again :)

Not to bad but ported is going to be loud as hell :p What kind of music do you listen too? Sealed is better if your into quality and clarity in your sound, I listen to a bunch of metal and rock with very little rap/hip hop and sealed is perfect ;)

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In the box F4-425 Pro TNAS device Power adapter LAN cable (CAT 6) Quick guide [full online guide] Limited warranty notice Screws (for HDD bays) Stickers 2x rubber feet (spares) Design As has become kind of common with TerraMaster, certainly in the last three years, the 2025 F2- and F4-series have received a makeover that really adds to the premium feel of the NAS. Gone are the plastic shells, now replaced with an aluminum outer shell, with the front and back retaining the textured black plastic we saw on the 2024 models. Some key differences from the 2024 series include placing the power button back on the front, along with the addition of a Type A USB port. It's not much bigger or heavier either; in fact, it weighs 500 grams less than the F4-424 Pro. It's slightly shorter in height and depth (length), but only by a few millimeters. The front and back do retain a similar style to the 2024 series. On the front, you just have your four bays along with LED indicators for the HDDs and power. The welcomed change is having a USB port on the front for quick access, should you need to back up a USB drive, for example. Around the back, from top to bottom, you have a reset pin hole, an HDMI port, two 5 GbE Ethernet ports, two USB 3.2 Gen 2 (10 Gbps) Type A ports with a Type-C port below them, and a connector for the barrel port power source. Again, there's no Kensington Security Slot present, which is a bit of a shame considering it's a data storage device. Left side Right side On the left and right of the F4-425 Plus, it is completely smooth aluminum with a TERRAMASTER logo printed on both sides. On the bottom, there are some holes to assist ventilation. Unlike with the F4-425 Plus, the rubber feet did come unstuck during the teardown, which was also an issue on the 2023 series. It seems like other customers have lodged complaints about them, as TerraMaster now includes two spare rubber feet in the box, in case any of the preinstalled ones are lost; however, this seems more like a papering over the cracks solution rather than actually fixing the issue with better quality rubber stand-offs. There are also four screws that must be removed in order to access the internals. Teardown Upon removing the four screws, you can slide the device out of its shell to reveal the three NVMe M.2 slots (PCIe 3.0 X1) and single SODIMM slot connector, which is populated with a single 16GB DDR5 4800MT/s module. I added a couple of MP44Q M.2 PCIe 4.0 SSDs (2 x 4TB) that can be availed on Amazon for $492.99 that TEAMGROUP supplied us with, along with a 250GB 970 Evo Plus that my colleague Chris White sent me by accident and let me keep a few years ago. As I have said in previous reviews, TerraMaster support staff actually encourage installing whatever you want on their devices, and happily, the USB port for the bootloader is now easily accessible should you want to use it for your own flavor of NAS OS, such as TrueNAS, Unraid, or maybe Xpenology. Yes, because TerraMaster has now switched to a 256 GB NAND Flash card (3rd photo above) for the TOS bootloader. This is also replaceable, but you can also simply add a USB bootloader, access the BIOS, and tell the F4-425 Pro to boot from that instead of the Flash card. Unlike earlier iterations of TerraMaster NAS, you don't have to tear this down any further than the four screws on the outer shell in order to be able to access and manage the memory, NVMe slots, and USB bootloader. However, if you need to access the NAND Flash card or CMOS battery, then eight more screws (four on each side) need to be removed in order to take off the rear panel with the 120mm fan, and then the motherboard can be lifted off and removed from the SATA connector PCB. There's also no risk of threading the screw holes, because the four that hold the shell in place are metal on metal, while the screws that hold the rear panel on do screw into plastic. Either way, like last time when I reviewed the F4-425 plus, I was just happier to see larger screws being used. Overall, it follows some great improvements in build quality from the 2024 series and earlier. Setup BIOS The F4-425 Pro includes an Aptio BIOS from American Megatrends [1, 2], and you can setup pretty much everything here including the boot order, which is locked to the UEFI OS, however above that choice you can enable or disable booting to the USB bootloader so this would still allow you to switch to a USB stick with an alternative bootloader and boot from it, or disable it to instead always start from the first disk with an OS installed on it. Initial Setup Setup is roughly the same as the F4-425 Plus, along with the new TOS 7 setup dialogs, so there will be no surprises here. Upon connecting to the LAN and booting up, the F4-425 Pro can be reached by navigating to http://tnas.local. If that doesn't work, you can use the local address assigned via DHCP, which you can find using the TNAS PC desktop application, which is essentially a TerraMaster NAS finder. The setup process is pretty straightforward, through a wizard, and in full below: TOS 7 Initialization As you can see, TOS 7 received a new coat of paint, and the initialization requires fewer interactions. Happily, TOS no longer decides to throw all disks into the same Storage Pool; 2.5-inch HDDs are allocated into Storage Pool 1. This is because two of the HDDs are allocated to hold system files. Previously (with TOS 5 and 6), if you pre-installed HDDs and SSDs, they were all placed into Storage Pool 1, even if you did not select the SSDs for inclusion during the onboarding. TOS 7 Setup On first boot, there is a tutorial and some steps to take to harden the TNAS (or not), which includes an immediate update from TOS 7.0.0616 to 7.0.0706, of which the changelog screenshot is also included in the above gallery. It must be noted that the Security Advisor still contains (in my opinion) a pretty major bug in that if you enable SPC and then do the required rebooting, the Security Advisor still says that SPC is disabled. TerraMaster provided the following statement about it: It is disappointing that TOS 7 has been in beta since December, and this OOBE issue is still there. Shutdown option has moved Instead of a Taskbar option to manage the NAS, all of these options have been moved to a "Start panel", initially I didn't see it and my contact had to show me how to power off the F4-425 Pro. To logout, reboot or power off you can find those controls at the top right of the Panel. It is also possible to power off through the TNAS mobile app beta. Storage setup Above, you can see the steps I took to create the Storage Pools and Volumes. I made a second Storage Pool using TRAID on two 4TB MP44Q SSDs (which, in this instance, is similar to RAID 5), and finally, I added the 250GB 970 Evo Plus drive as Hyper Cache on Storage Pool 1 in Balanced mode. Registering If you decide not to lock down the F4-425 Pro in Security Isolation Mode (blocking all external connections), then you could set up a TNAS device ID through the Remote Access setting in the Control Panel (which must be unique). This works in combination with an online TerraMaster account. TOS 7 TNAS Online Creating a TerraMaster account and linking the device online activates the warranty when you provide proof of purchase and the serial number, but it also gives you access through the TNAS mobile app, which allows you to complete certain operationsб including powering off and restarting the NAS remotely. A TNAS mobile update is required to gain access through TOS 7, and this is provided on the TerraMaster website, as it is not yet on Google Play. The app is evolving all the time and has made leaps and bounds since I first started reviewing TerraMaster devices almost three years ago. It is not quite there yet if you are comparing the likes of Synology, which, sadly, a lot of users online do all the time. OpenClaw setup One of the main selling points of the new F4-425 Pro is the inclusion of OpenClaw, with TerraMaster claiming that it is "powered by the world's first AI-native TOS 7 OS, supporting local-first smart workflows and independent data control." However, I immediately ran into problems trying to enable OpenClaw. After waiting 20 minutes at the "Enabling" message of the OpenClaw app following installation, I decided to do some searching online and discovered that it couldn't complete the installation process due to SPC being enabled, which is something TOS 7 immediately recommends to be enabled on first boot. SPC for NAS (TOS 7) is basically the same principle as UAC in Windows; it blocks executables from being launched by non-Super Users. After reaching out to my contact about these issues, I received the following response: Anyway, this only became clear when I closed the OpenClaw app screen and clicked on the OpenClaw icon in the taskbar; that is when I saw the message about disabling SPC. I think, due to the fact that this is a requirement, this should be a prompt during the installation process, not when closing the App Market and then trying to launch OpenClaw. There's also no 'Getting started' guide for people like me who have never used OpenClaw. I tried to add an LLM and discovered the tutorial led nowhere. That's when I started looking around the official TerraMaster forums, and I found a guide that helpfully explains that you won't get anywhere with OpenClaw unless you have a paid plan, which is disappointing because I imagined there would be an option to use a local LLM as I do in SubtitleEdit with Whisper-XXL. In addition, with the marketing imagery on the official site, it says that the OpenClaw feature is "all processed 100% locally for absolute privacy." which led me to believe that I could install a local LLM, not one that required paid tokens. In any case, TerraMaster does not provide guidance for this new feature, which was also a selling point of the F4-425 Pro! My contact also provided clarification about the above points I raised with TerraMaster Since it is not in the scope of the review to add paid services, I'll leave that to the people who are more qualified with OpenClaw. F4-425 Pro Surveillance App TOS also comes with a Surveillance app, which is not installed by default; it can be found in the App Market recommended section. In addition, after installing, it doesn't drop a shortcut on the Desktop or top taskbar, but you can "Send to Desktop" from the App Market listing for the app for a quick way to open it. Adding my Reolink POE doorbell camera was painless. TerraMaster doesn't appear to have a repository of preconfigured cameras; instead, the camera must be added using ONVIF or RTSP. No mobile Surveillance app TerraMaster still doesn't have a dedicated Surveillance app, although from searching online, Surveillance can be used and managed through the TNAS mobile app. I tried this with the updated TNAS mobile app beta in combination with TOS 7 and got a message that Surveillance was "Only accessible through web browser," so I reckon this must be limited to the stable versions of TOS 6 and the mobile app. More quirks In addition, whenever I minimized the Live View window in the browser Surveillance app, the feed appeared to switch to the Low-bandwidth stream, and there was no way to get the High-quality stream back. To get the High-quality stream back, I had to close Live View and then reopen it. Benchmarking A pretty cool feature of the TOS 7 is that it allows you to install directly to the NVMe M.2 SSD. In order to do that, you would have to leave out any HDDs during initialization, and even then, the system partitions are always written to two HDDs when they are eventually added. With three NVMe slots, this also gives an interesting scenario where you could build a TRAID storage Pool for installing all your apps and Docker on, and keep the third for SSD cache on the HDD pool. Limitless options! SATA PCIe 3.0 X1 A CrystalDiskMark test on a mapped network drive from within a Windows 11 25H2 PC (image above) connected over a 5 GbE hub was well within acceptable ranges. Although the read result on SATA was a little less than with the F4-425 Plus, for some reason, while writes were generally better. SATA PCIe 3.0 X1 I also ran the NAS Performance tester, which tests the link speed performance. As you can see, it pretty much maxes out the 5GbE connection. Of course, you can also opt to bond the two 5 GbE connections for a bit more umph, but I didn't do that. TOS 7, which, as of testing, is still in Beta, comes with an App Center that has a bunch of handy programs you can install right off the bat, such as Emby, Plex, Docker, as well as in-house Backup and Surveillance solutions. As you can imagine, any media streaming services you would want to host off the F4-425 Pro will work great, thanks to the Intel Core N350 CPU and its 16 GB of DDR5 memory. Accessing from mobile is only possible if Security Isolation Mode is disabled, which can put your NAS at risk from external sources, so there was no way to access it from the TNAS Mobile app. It's also quiet. I had this sat next to my computer on my work desk for the past week, and I did wonder if the noise I was accustomed to with NAS devices would annoy me, but all I could hear was a soft whirring of the rear fan (which was a little annoying) when the disks were not actively copying or reading data. Conclusion So what have I learned? Unfortunately, this release raises a few important questions and concerns that I feel haven't been adequately addressed. What I didn't like Our variant shipped with TOS 7 beta, and it's advised not to use it in a production environment. I feel that's a bit limiting on an $800 device. The mobile app is also still in beta and does not support some of the first-party apps, like Surveillance, and it still has quite a few bugs. I am a bit confused about the OpenClaw marketing along with the F4-425 Pro. I feel like that if it's going to be a main selling point, then offer official guidance on how to get started with it. TerraMaster recommends enabling SPC, but then markets the NAS for use with OpenClaw, which requires disabling SPC to be able to use it, opening up genuine security concerns for the NAS; and that's before you get into the security concerns of OpenClaw itself. Of course, the above issues won't be a problem if you decide to install something else on it, or even go back to the stable TOS 6. I wish TerraMaster had just given TOS 7 as opt-in rather than shipping with it. TOS 7 has been available as a preview since December 2025 (so well before my last TerraMaster review), and according to a thread on Reddit where a user shared a screenshot from the TerraMaster Facebook page, it is scheduled to launch today, June 23, but there's nothing about that in the TerraMaster news blog. My contact confirmed over email that TOS 7 exits beta today. The rubber feet also deserve a mention as they continue to be a problem, with them coming unstuck the moment you shift the F4-425 Pro anywhere on your desk. What I liked What it comes down to, though, aside from what I already mentioned, you are still getting a quality, affordable device here, so recommending it will depend on the individual's use case. If you're just looking for a relatively small NAS device to manage virtual machines on, backup your files, and take care of your home theater streaming, then it is a great device that will certainly futureproof you for some time. It provides good performance, takes up little space, and is, on the whole, very quiet. Four bays afford proper redundancy using TRAID or RAID 5, and you can even expand on storage capacity by adding the 2-bay D5, or 4-bay D8 Hybrid DAS over a USB 3.2 (10Gbps) link. Considering the 2024 releases were more about power, with the likes of an Intel Core i5-1235U high-end laptop CPU under the hood, I asked my contact last time if we could expect more of the same in higher-end models and was told: It makes a lot of sense to use Intel's N350 chip inside a NAS; it is more than capable of doing what the F4-425 Pro is intended for, media streaming and backup. The only downside is still the clear lack of community and even staff support on the official forums. In the past, I have had topics go unanswered for days, or there would be generic-type "we've noted this and passed it onto our developer team" type responses. Along with the other things I mentioned, it all ends up costing it a couple of points. If you are comfortable with the command line, Docker, and setting up TrueNAS or Unraid, you'll be fine. You can do great things with this hardware. In TOS, the apps are a bit lacking, and things don't always work as expected.\ AI NAS?! What has become clear to me this year is that we are going to start seeing all kinds of "AI NAS" come to market, and while that might be good for us consumers, be diligent and research these claims. Although the F4-425 Pro technically comes with AI, it is really using a cloud service that is externally sourced off-device through the third party OpenClaw app. My colleague did review a newcomer to the NAS space earlier this year, and it includes a local AI assistant inside the Zettlab D4 NAS, and they do not even use AI in the product name, check out Chris' review here. Where to buy and a discount coupon However, it does not change the fact that this is truly a great entry-level home media-class NAS that you can buy right now. TerraMaster is having a 20% off launch discount, plus you can also still apply our unique 10% off coupon on checkout, which only works on the official website. So here is a breakdown of the pricing that is only valid on the official TerraMaster website. TerraMaster F4-425 Pro (N350) + 20% discount + 10% coupon = $575.99 TerraMaster F4-425 Pro (N305) + 20% discount + 10% coupon = $503.99 TerraMaster F4-425 Pro (N350) + 20% discount + 10% coupon = £525.59 TerraMaster F4-425 Pro (N305) + 20% discount + 10% coupon = £460.79 Use NEOWIN coupon code during checkout for 10% discount Over on Amazon US and UK, the F4-425 Pro also gets a 20% launch discount, but here, the above 10% coupon cannot be applied. TerraMaster F4-425 Pro (N350) for $639.99 at Amazon US (was $799.99) TerraMaster F4-425 Pro (N305) for $559.99 at Amazon US (was $699.99) TerraMaster F4-425 Pro (N350) for £583.99 at Amazon UK (was £729.99) TerraMaster F4-425 Pro (N305) for £511.99 at Amazon UK (was £639.99) As an Amazon Associate, when you purchase through links on our site, we earn from qualifying purchases.
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