Fosi Audio TP-02 Subwoofer Amplifier TDA7498E Mini Sub Bass Amp Digital Class D Integrated Subwoofer Amplifier 220Watt Features: Built-in low pass filter, 220W(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 Adopt Texas Instruments TDA7498E chip, NE5532 op-amp. No pop, no audible noise, dead silent when nothing is playing through it Home Hi-Fi mono integrated class d amplifier, Exclusively designed for the customers who pursue HiFi sound; Hightlights: Model: TP-02 Power Adapter:24V/4.5A DC Input Range: 12V-24V Terminating Impedance: 2 Ohm - 8 Ohm MAX Power Output: 220Watt @2Ohm Input Mode: RCA Full Frequency Response Range: 20Hz-20KHz(± 3db) Bass Frequency Range: 20-200Hz Input Sensitivity: ≤ 280mV SNR ≥ 98dB THD ≤0.04% Package Include: * TP02 Amplifier x1 * 24V/4.5A Power Adaptor x1 * User Manual x1