Distorted sound in Parasound A23 power amplifier


Hi!

I have bought a used Parasound A23 power amplifier and the sound is distorted. I have connected different preamps with the same distorted sound. What is wrong? Is there a problem with the amp, the preamp or the source component? My standard setup (integrated amp and speakers) is working normal.

 

thanks for replay!

eboymusic

Showing 5 responses by eboymusic

The distorted sound sounds like the speakers are blown but they are working normal

I have tried Mdac+ which got output voltage 4.5Vrms ±0.1 (balanced) and output impedance 20ohm (balanced). I know that this is a dac but it should also work as a preamp. I have also tried preamp output from CXA80 integrated amp (unbalansed), I didnt found the output voltage. Same distortion on both. Im not an expert on power amplifiers 😉 Im feeding the dac with upsampled dsd audio signals using a computer and hqplayer.

I dont have distorted sound using the CXA80 integrated amp and Mdac+ connected to a computer with USB-B. The voltage output of USB-B is 5V.