The SONY XM-222 is a 222 watts car audio amplifier that uses negative ground power supply (simply means it uses battery's (+) terminal as positive and (-) terminal as ground or common or zero reference, whatever you call it). It can output 100W (peak) per channel in stereo mode. It has a very compact design and weighs only 1.6Kg. Here are some images of the beast I took when my friend brought it to my home (well, it's not mine, but don't worry I have a more powerful one)
Circuit system | OTL (Output Transformer Less) |
Inputs | RCA pin jacks High level input connector |
Outputs | Speaker Terminals |
Speaker impedance | 2-8 Ω (stereo) 4-8Ω (bridging configuration) |
Maximum output ( at 4Ω) | 100 W per channel 222 W (mono) |
Rated output ( at 14.4 V) | 35 W per channel (20 Hz - 20 KHz, 0.04 % THD at 4Ω) 40 W per channel (20 HZ -20 KHz, 0.1% THD at 2Ω) 80 W mono (20 Hz - 20 KHz, 0.1 THD at 4 Ω) |
Frequency response | 5 Hz - 80 KHz (+0/-3 dB) |
Harmonic distortion | 0.005 % or less ( at 1 Khz, 4Ω, 10 W) |
Input level adjustment range | 0.2 - 4 V |
Low pass filter | 80 Hz, -12 dB/oct |
Power requirements | 12 VDC car battery (negative ground) |
Power supply voltage | 10.5 - 16 V |
Current drain | at rated output : 12 A ( 4Ω, 35 W x 2) at 10 THD : 14 A Remote input : 1.5 mA |
Dimensions | Approx. 230 x 53 x 145 mm (W x H x D) |
Weight | Approx. 1.6 Kg |