Fosi Audio BS-A1 4.0 Channel Mini Amplifier Bluetooth 5.0 US$76.49 (~A$105.22) Delivered @ Fosi Audio

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AssociatedLUXqiu on 01/03/2022 - 17:39 fosiaudio.com (406 clicks)
Last edited 01/03/2022 - 17:43 by 1 other user

BSA115

Fosi Audio BS-A1 Bluetooth stereo receiver amplifier support Bluetooth, RCA, and USB input, is compatible with your existing stereo equipment, and provides exceptional sound quality.

Product Size: 5.12 inch X 1.38 inch X 5.12 inch. Simple compact design but practical and powerful. Stream Hi-Fi music to your home audio stereo system.

4.0 CH Unique Design. With a select switch, this little amp can drive 2 passive speakers and 2 powered/active speakers at the same time in the RCA mode.

Small but Professional. Adopted Fosi Audio advanced BS-A1 power amplifier chip. RMS 50W X 4 output. THD: ≤ 0.01%. Frequency Range: 20Hz - 20kHz (±3 dB). SNR: ≥ 105 dB. Input sensitivity: ≤ 200mV.

Parameter:
Power supply range: DC 12v-24V;

THD: ≤ 0.01%;

Frequency Range: 20Hz - 20kHz (±3 dB);

SNR: ≥ 105 dB;

Input sensitivity: ≤ 200mV;

Terminating impedance: 2Ohm - 8Ohm;

Output power: 50W*4;

Input: RCA/Bluetooth/USB;

Power supply: 24V 4.5A;

PACKING LIST:
1*BS-A1 Amplifier

1*AC cord

1*24V 4.5A Power Supply

1*User Manual

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Fosi Audio

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  Watanabe1995 on 01/03/2022 - 20:31

  should be 25w/channel

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    tonyjzx on 01/03/2022 - 20:38

    i would be suggesting that 4 x 25w is impossible from a 24v 4.5a psu…

    i cant think of a use for such a device except for maybe multiroom amp but you play at moderate volume

    4 channel desktop amp is kind of… hmmm

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      desync on 02/03/2022 - 12:53

      yeah, 2.0 or ideally a 2.1 are much more useful, really pleased with the 2.1 douk audio amp i have on my PC

      don't think i've seen a 5.1 yet - not sure why as i think they have much more potential to catch on

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    desync on 02/03/2022 - 12:44

    why are you suggesting that?

    i assume this is a class D amplifier built on an texas instruments chips, if so these are incredibly cheap, powerful and sound amazing

    i have a smaller amp with two of these chips pumping out 200W RMS - iirc each chip will produces 100W RMS @ 24V - if they paired it up with a 12V PSU then yes, you'd be right

    you have to understand that these aren't like fake wattage lightbulbs, they are texas instrument chips (or clones?) but they do whats on the tin, the most common produce 100W RMS each at max voltage