1. PFA100 PYLE Class T Amplifier The PFA100 uses a Class T audio amplifier IC for low distortion and acoustically accurate reproduction of music Input power DC 9 14 4V 2A Output Power 30 W Specifications Speaker impedance 2 80 Frequency response 20Hz 20kHz customized listening via separate bass and Total harmonic distortion lt 04 treble adjustments or the original signal SNR gt 80dB can be passed through without enhancement Tone direct switching allows for The built in loudspeaker protection circuit triggers when the amplifier is turned on to protect speakers from high volume bursts of audio Over voltage protection circuit shuts down the amplifier if input voltage exceeds 14 4 V DC State of the art design using surface mount components and advanced engineering for proven performance reduced signal interference and long operational life POWER PYLE PFA100 OO O4 Mp3 TONE A DIRECT TREBLE BASS VOLUME MADE IN CHINA Front Inputs 3 5mm 1 8 Rear Outputs Speaker RCA L R Mic