Adopt Texas Instruments TDA7498E chip, NE5532 op-amp. No pop, no audible noise, dead silent when nothing is playing through it;

Built-in low pass filter, 220W X 1(4 ohms, 20 Hz - 120Hz, 0.04% THD, 18db/octacce) for subwoofer, Small simple compact design but practical and powerful;

Advanced circuitry design, built-in speakers protection circuit, solid aluminum chassis for long time use;

The new version of TP02 has one more sub freq adjustment knob than the old version, and the others remain unchanged.

TP-01 Subwoofer Amplifier Receiver 100W

TP-03 Subwoofer Amplifier