![]() Please find the detailed schematic below. It is compact, has good shielding and main power input connector and power switch are already present. I used an old computer power supply as case. For 96kHz 96 samples the latency decreases to 1.3ms. In this setup, the latency is around 1.8ms. I use a RME Fireface 802 via USB 2.0 with low-noise ADC's at 48kHz 64 samples buffer. The TDA7293 amplifier drives loudspeakers in bass and guitar combo-amplifiers directly, so all electronics inside the orignal amps can be bypassed.Ī bass and guitar should be connected to a high quality and low-latency audio interface. (See purple block in the block diagram below) IK Multimedia Amplitube 5 bass/guitar emulation software is used to process the guitar sounds and emulate preamps and speakers. I use the audio amplifier to drive both bass guitar and guitar loudspeakers at the same time with independent volume control for practicing at home. ![]() ![]() ![]() The audio amplifier consists of a pre-assembled PCB based on a TDA7293 IC with minimal external components and is implemented in a various number of bass/guitar amps. This project contains a DIY dual audio power amplifier to drive two 8 Ohm loudspeakers from unbalanced line input signals. ![]()
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