Passive Audio Attenuator High-Level to Low-Level Amplifier Speaker to Output Attenuator Common Ground Isolation

Passive Audio Attenuator High-Level to Low-Level Amplifier Speaker to Output Attenuator Common Ground Isolation Beskrivelse

This module converts the high‑level speaker output of an amplifier into a standard low‑level line‑out signal. It is designed for mono amplifiers with output power under 10W, safely reducing the speaker‑level signal to a level suitable for sound cards, mixers, recorders, and other audio equipment.
The board features a built‑in audio isolation transformer that provides effective ground isolation, minimizing hum and noise caused by ground loops. The attenuation can be continuously adjusted from ‑4dB to ‑30dB using the onboard trimmer, allowing precise control over the output volume.
A ground/common‑mode selection jumper is included, letting you choose between grounded or isolated operation based your setup. A dummy load resistor is also provided: turn it if the amplifier is not connected to a speaker to protect the amp, or OFF if a speaker is already connected to avoid unnecessary power loss.
Standard Version: Uses a ferrite core transformer. Good performance in the mid and high frequencies, but with some bass loss. Suitable for voice applications, intercoms, PA systems, and other scenarios where high‑fidelity is not required.

Color: Green
Material: PCB

Package Contents:
1 * Passive audio Attenuator