Best Drok Hearing Amplifiers

Features: Amplifier chip: TDA7498 Output power: 100W+100W (Vcc = 36 V, RL = 6Ω, THD: 10%) Output power: 80W+80W (Vcc = 34 V, RL = 8Ω, THD: 10%) Wide range single power supply: 15-34VDC(recommended 24V) Applicable speaker impedance: 8 ohm best(4 ohm or 6 ohm also works) Four fixed gain settings available: 25.6 dB, 31.6 dB, 35.1 dB and 37.6 dB Adopts differential input to minimize common-mode noise Protection: short-circuit protection, over temperature protection With standby and mute features High efficiency: 90%   Description: The TDA7498 is a 100W+100W dual-BTL class-D audio amplifier with single power supply designed for home theater and active speaker applications. It adopts 36-pin PowerSSO packaging with exposed pad up (EPU), more convenient to mount a separate heatsink.   Mode: The TDA7498 has three kinds of modes: standby, mute and normal working mode(you can set the mode by shorting the pins shown on pictures). Standby mode: all circuits closed, at a low power state; Mute mode: all input signals connects ground, the duty cycle of forward/backward PWM output signal is 50%; Normal working mode: the amplifier works normally.     Package Includes: 1 x TDA7498 Amplifier Board