I bought it used so it should have been burned in. IMO it needed a valve pre-amp to warm up the vocals. But of course that is my personal preference.
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@seanheis1 Sorry they didn't work out for you. I'm on the other side, they work great for my needs, but then I'm not taking a PC audio output. :) You asked about inputs. Among some of the things I've read is the use of input coupling transformers. Either 1:1 or 1.4 or 2:1 to increase the apparent input impedance were some of the stories I've read. I"m actually dying to try some from Jensen, but that's another project that will have to wait. Not too terribly expensive, about $70 each There's a lot of claims of vendors doing this or that to the amps to differentiate themselves. some are true, some are completely bogus but in almost all cases are almost costless. The biggest change which is true is from Theta who started shipping nCore modules with linear power supplies. It's easier to do with nCore since they don't have an integrated power supply like many of the ICEPower modules do. Of course, Hypex sells power supplies, but with the ICEPower 250ASP for instance, the power supply is on board and impossible to remove. Just to be sure, leave them on 24/7 for a week or so, let us know if the amp warms up at all. Best, Erik |
Hi Erik, I tested them with a USB external DAC with my PC, also with a Marantz AV receiver, and with a Chromecast audio....all streaming Tidal for the source material...I never did balanced input. I can see how a linear power supply would be nice. With my PC I got ground loop until I plugged it into a ground removal adapter. Same thing happened to me using studio monitors with Class D amps built in so I assume it's the switching power supply causing the ground loop. |
The amp is back up for sale on ebay if anyone is interested. http://www.ebay.com/itm/Bang-amp-Olufsen-Ice-Amp-125ASX2-Class-D-B-amp-O-Amplifier-/162157800297?&am... |
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