audio amplifier

Hello there, The backgorund: I'm working in an audio module using an electret microphone and a MAX4466 amplifier, I'm using the layout recommended in the MAX4466 datasheet (datasheet Figure 2), with the only difference being there is a 100 nF cap between the MIC+ and MIC-, the presence of said...

Hello, I disassembled HCD-RG295, its an audio system with CD, Decks, radio, and amplifier, and I want to take amplifier from it and make it work with aux, but I am not very much knowledgeable of what to do to make it work. I would be happy if it had like aux, volume control, and that's all. I...

I have created my own Class D amplifier based 2.1 Karaoke Music System using ready to connect modules according to the following diagram to create the music system. I have used probably three very common modules which many of you may already be familiar with. I am still linking sample Amazon...

Hi there everybody this is my first post here and I'm so happy to find this community (which feels more like the real internet that we used to know), I had worked on some Robotic projects when I was a kid, then work life took me to programming for the past 15 years, and now I've got some time...

I have an LG LFD790 music system. It comes in four parts (2 side speakers, one sub woofer with built in amplifier and power supply and a main unit which controls the system). The main unit is connected to amplifier board using a 32 pin connector. I have lost this cable and can't find the...

Hello everyone. I am working on a project where I use raspberry pi and a speaker. I'm using an amplifier module for the speaker which operates on 12v while raspberry pi needs 5v hence I use CA-1235 DC-DC converter which converts 12v to 5v for the raspberry pi. Now, I can hear buzzing noise in...

Hello, I hope you're all doing well. I'm putting together a sound system for my room. It has two power amps: one for two normal speakers and the other one for a subwoofer. I have put a pre-amp with the power amp that's gonna filter the sound going to the subwoofer. The whole system is powered...

Amplifier: Technics/Panasonic SU-CH7 This amplifier belongs to an Hi-Fi Audio system (SC-CH7) that originally comes with speakers (speakers with separate highs and lows too, 4 connections in each speaker). It also needed the Tuner unit (ST-CH7L) in order to turn the amplifier on but I was able...

Hello, In short I need some formula that adjust the gain according to different output load. I am trying to design an audio amplifier. I need to adjust the gain for both an output impedance of 8 ohms and 150 ohms. The sound is mono. The signal at my input is 315mV rms and at the output 3.1V rms...