PSJtxOB8C

A Bluetooth speaker with a perfect ceremonial atmosphere

Overview

This amplifier board is based on the QCC3034 and TPA3244. Two speakers can be configured as a TWS speaker pair.
It uses two 3-inch full-range drivers. The power supply uses five 21700 batteries in series. The amplifier supports a maximum of 2*30W (8 ohms) at 21V and a maximum of 2*50W (8 ohms) at 30V (unverified).
Reproduction of this project is not recommended at this time; the exterior will be redesigned and ambient lighting added next month.
The following issues currently exist:
1. One-button power on/off is ineffective, so it cannot be turned off.
2. Incorrect button orientation.
3. The rear acoustic chamber is too small, resulting in poor sound quality.

Details:

Design Files

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Update:2026-03-28 01:39:01

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