# 2x100W TDA7498 amplifier module

> TDA7498 class D audio amplifier module with dual-BTL output 2x100W (Vcc=36V, RL=6ohm, THD 10%) or 80W+80W at 34V/8ohm. Supply voltage 15-34VDC, 24V recommended. Recommended speaker impedance 8 ohm; using 4 ohm speakers may damage the module. 4 fixed gain steps (25.6-37.6dB), short-circuit and over-temperature protection, Normal, Standby and Mute modes. Suited for home theater and active speakers.

- Page: https://sigmanortec.ro/en/2x100w-tda7498-amplifier-module
- Price: 72.95 RON
- Availability: In stock; 1-2 zile
- Reference: 33347 · EAN: 5946107639963
- Category: Mechatronics and IoT > Sensors and Modules > Audio and Sound > Audio Amplifiers
- Specifications: Type: Amplifier; tension: AD; Power: Over 20W
- Package (shipping data): 0.096 kg
- Updated: 2026-09-14
- Shop: [Sigmanortec.ro](https://sigmanortec.ro/en/llms.txt)
- Prices: RON, VAT included; prices and stock as of 2026-10-22 05:21 (Europe/Bucharest)

## Description

Dual BTL class D amplifier for home theater and active speakers, delivers up to 2x100W with high efficiency and low heat. Operates at 15-34VDC, recommended 24V, has 4 selectable gain stages, short-circuit and overtemperature protections, plus Normal, Stand-by and Mute modes for easy operation control.
The TDA7498 module is a class D amplifier, with dual-BTL 100W+100W output, single power supply, designed for home theater and active speaker applications.
Important: Using the amplifier with 4-ohm speakers can cause it to burn out. If you still want to use 4-ohm speakers, use the lowest possible voltage and be careful about the amplifier overheating. If necessary, use active cooling by applying a fan to the heatsink. Burning the module by using speakers with a value other than 8 ohms voids the warranty.
Specifications:
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%)
Power supply voltage: 15 - 34VDC (recommended 24V)
Speaker impedance: 8 ohms recommended (using 4-ohm speakers can cause amplifier burnout)
4 fixed gain values: 25.6dB, 31.6dB, 35.1dB, and 37.6dB
Protection: short circuit and temperature
Functions: Normal, Stand-by, and Mute. Set by shorting the pins shown in the picture below
Standby: circuits off, low power consumption mode
Mute: all signals connected to ground
Normal
Alternative audio input with 3 wires (3 pin audio input): Middle GND, outer pins L and R