deafbykhorns Posted June 27, 2023 Share Posted June 27, 2023 Purchased one from Epray with heavy distortion… Need one that works and has been tested. 2040 or 4080 will work Quote Link to comment Share on other sites More sharing options...
babadono Posted June 28, 2023 Share Posted June 28, 2023 no offense meant to you Sir but have you installed XConsole and hooked up to the unit with distortion? Sometimes the settings are whack and need adjusting or resetting. If you have done all this my apologies. Another member here was having problems and the limiters on his unit were set to -20dBu instead of +20dBu. What's 40 dB amongst friends? Also don't know which unit you acquired but sometimes how you hook it up (the cables) can be an issue. GLWY search. Quote Link to comment Share on other sites More sharing options...
diamonddelts Posted June 28, 2023 Share Posted June 28, 2023 I could help with this since I have a Xilica XP-4080 I may not need. But according to some, I'm not accustomed to the real thing. Quote Link to comment Share on other sites More sharing options...
deafbykhorns Posted June 28, 2023 Author Share Posted June 28, 2023 I am well versed with pro sound equipment…the unit was flashed with latest firmware and set to defaults. Any DSP settings including a simple mix change will distort signal, its at the digital level and not the opamps. the scope shot below is just adding a mix, if i change something as simple as gain, it gets worse. Compression/limiter is set to max (20db). The software meters also show compression. Quote Link to comment Share on other sites More sharing options...
babadono Posted June 28, 2023 Share Posted June 28, 2023 Yep that looks pretty jacked...very non monotonic. This is the output with just a sine wave in? Are you just out the cash you paid to seller on Ebay? Which model is it? I have schematics of analog I/O portion if you want them. Quote Link to comment Share on other sites More sharing options...
deafbykhorns Posted June 28, 2023 Author Share Posted June 28, 2023 Yes, 1000hz sine wave, its a clean output until i introduce any DSP changes. If i even reduce DSP gain at input or output, it almost turns into a sawtooth…. Its not in the analog section since opamps don't behave that way when they go bad and would usually have some offset. Its the XP 2040… send me the schematics, I’d like to take a look at it anyways Quote Link to comment Share on other sites More sharing options...
babadono Posted June 30, 2023 Share Posted June 30, 2023 @deafbykhorns this is how you get a fellow members attention Quote Link to comment Share on other sites More sharing options...
deafbykhorns Posted June 30, 2023 Author Share Posted June 30, 2023 On 6/28/2023 at 11:58 AM, babadono said: Yep that looks pretty jacked...very non monotonic. This is the output with just a sine wave in? Are you just out the cash you paid to seller on Ebay? Which model is it? I have schematics of analog I/O portion if you want them. @babadono I can scratch build a tube amp but have no internet etiquette... 1 Quote Link to comment Share on other sites More sharing options...
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