Audio Amplifier Board + BA3880BBE Driver Preamplifier Module with Tone Adjustment and Surround Sound Support with BBE

Audio Amplifier Board + BA3880BBE Driver Preamplifier Module with Tone Adjustment and Surround Sound Support with BBE Popis

Core Chip: YYS247 tone chip; the BBE version additionally features a BA3880BBE exciter chip (enhancing sound clarity).
Adjustment Functions: Treble adjustment, bass adjustment, volume adjustment, surround effect adjustment (4 potentiometers).
Polypotentiometer Specifications: All pitched 25mm, with dedicated knob caps.
Operating Voltage: AC 5-16V or 21V (Do not use switching power supplies to avoid interference).
PCB Size: 100mm x 45mm x 28mm (Universal for all versions).

I. Product Overview

This product is a high-fidelity tone control board, featuring a YYS247 tone chip and a BA3880BBE exciter chip. It allows for precise adjustment of treble, bass, volume, and surround effects, while also supporting a pass-through mode. It caters to both audiophiles seeking original sound and general users' personalized sound needs, making it suitable for upgrading and modifying various audio systems

II. Mode Switching

Pass-through Operation

This tone board features a pass-through (toggled via a shorting cap) to control whether the signal passes through the tone processing circuit:

1. Shorting cap connected to V terminal (marked "" for BBE versions): Tone function enabled. The preamp input signal is processed by the circuit, allowing for high/low frequency boosting or attenuation, and surround effect adjustment to meet personalized sound needs (such as those requiring deeper bass or enhanced treble penetration)

2. Shorting cap connected to G terminal (marked "OFF" for BBE versions): Pass-through mode enabled. The signal is transmitted directly to the power amplifier without any tone processing, restoring the original sound of the source,making it for audiophiles to listen to music such as CDs
Color: As Shown
Material: Electronic Component
Specification: