If you are in the market for a desktop or bookshelf speaker and don't want to spend a whole lot more than $150, the Aiyima S4000 can be a great choice as it's currently just $152 (purchase link under the specs table down below). For anyone not familiar, Aimiya is one of the many "Chi-Fi" brands out there.
The S4000 is positioned as a compact active monitor speaker system aimed at listeners who want versatile audio performance in a desktop or small-room setup. As such the speaker combines professional-style connectivity with a design focused on clear and detailed sound reproduction.
One of the useful features of the S4000 is its active speaker configuration which essentially means it includes a built-in amplifier in the form of Class D amplification, designed to provide stable and efficient output while reducing the need for an external amplifier.
The speakers feature a 4-inch mid-woofer driver paired with a 25mm (1 inch) horn-loaded silk dome tweeter, sort of mimicking the look of Klipsch's horn-loaded tweeter designs. Aimiya claims the woofer can go down to 45Hz, although it is not mentioned whether that's at -3dB or -6dB or even lower. Regardless, for a bookshelf that should be plentiful. To help with that bass, the S4000 packs a rear aero port whose tuning is probably around the 45-50 Hz range.
In terms of connectivity, the S4000 supports balanced XLR and 6.35mm inputs, making it suitable for use with mixers, audio interfaces, or other professional equipment. Additional options such as RCA and Bluetooth input provide flexibility for everyday listening with phones, computers, or televisions. Aiyima also includes a subwoofer output for those who want a deeper bass response than what it provides at stock. Via this port you can connect an external active (powered) subwoofer.
In terms of build quality, the cabinet uses high-density MDF material intended to minimize unwanted resonance. The technical specifications of the Aimiya S4000 is given in the table below:
| Specification | Value |
|---|---|
| Output Power (L/R) | 40W + 40W |
| Maximum Power Output | 50W + 50W |
| Signal-to-Noise Ratio | ≥85 dB(A) |
| RCA Input Sensitivity | 650 ± 50 mV |
| XLR Input Sensitivity | 6V |
| Bluetooth Input Sensitivity | 700 ± 50 mV |
| Frequency Response | 45Hz – 20kHz |
| Woofer | 4-inch |
| Tweeter | 1.5-inch |
Get it at the link below:
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AIYIMA S4000 2.0 Studio Monitor Speakers: $151.99 (Sold by Aimiya, Shipped by Amazon US)
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