If you plug it the wrong way, quite likely that the OPA627 is "burnt". I have burnt a pair of OPA627 in a Phono pre-amps by putting the"adapter" the wrong way, and while the OPA failed, nothing else failed....   Suggest you try to plug-in another OpAmp.    

Quote: Thanks, that confirms my DAC19 as "normal".   Thanks to slim.a and all others contributing to this thread. Reading this thread for 6 months and hearing that PCM1704 stock was running out made me pull the trigger.   DAC19-DSP and C2 sound great. I replaced my Audio-GD...

Quote: Good question. Would like to know the answer too.   Another observation and question:   I have DAC-19 connected to C2 via ACSS and DAC-19 RCA output is connected to my speaker amp. If C2 is selected to receive the ACSS signal, the output level to the speaker amp is very low...

Great thread, helped me (re)discover lots of great recordings.   My list:   Eva Cassidy (Live at Blues Alley) - Stormy Monday (could add the whole album...) Ray Charles (Genius Loves Company) - Fever (with Natalie Cole) E.S.T (Live In Hamburg) - The Rube Thing Peter Cincotti (Peter...

  Quote:   Yes, I did the clock mod.   My 500mAH battery voltage is dropping faster now after 24h (about 24h effective playing over past 2 days). During first 24h, it was constant at 3.32V.   Are you disconnecting the battery when not using the HiFace, or do you simply keep it...

A few months back I modified my USB cable to give the HiFace fresh 5V power from battery. Perhaps some improvement, but not much.    Last Saturday I gathered the courage to "hack" my HiFace open for the 3.3V mod. I didn’t have the patient to wait for internet order, so I bought two 3.3V...

Quote: Originally Posted by shamu144 Some apparently disagree with your statement. Probably not the ultimate power supply available, but could give some fairly decent results: USB power supply Some time back I tried to build a USB filter to my HiFace. With a DIY filter I managed...

Quote: Originally Posted by ulfp I just installed 1.03 on XP with foobar and KS (output format set to 32 bits). I noticed that the new driver download come with a small app display.exe. When I run the app it shows correct sample rate 44k, 88k, 96k, etc, but somehow it is always...

I just installed 1.03 on XP with foobar and KS (output format set to 32 bits). I noticed that the new driver download come with a small app display.exe. When I run the app it shows correct sample rate 44k, 88k, 96k, etc, but somehow it is always stuck on 16 bits even though I'm pretty sure...

Quote: Originally Posted by Andrew_WOT You can also set a list of frequencies you want to bypass resampler Resampler plugin - Hydrogenaudio Forums Thanks. Did'nt know there was selective bypass. Will give it a try.

Quote: Originally Posted by Andrew_WOT You can upsample them all to the same rate in foobar2000. SoX is a perfect upsampling plug in, I upsample everything to 176.4 (4X) when feeding Chord DAC64, and to 88.2 (2X) with Stello DA-100 (it only accepts up to 96khz). Earlier, I...

Yesterday I bought a HiFace with RCA connection from RaindropAudio in Singapore (stock in the shop, so no time lost ordering). If I would have read the last few pages on this thread earlier, I would probably have gone for the BNC and used a BNC to RCA adapter at DAC end. The Hiface gave me...

Quote: Originally Posted by Currawong Sparky14: Can you please email Audio-gd and tell them about this. They'll want to know so they can make sure the worker responsible doesn't make that mistake again. Will do. Just got to find the sticker with the serial number.

Quote: Originally Posted by punk_guy182 It is quite safe to leave this amp turned on during long hours without turning it off. The heat generated by the Compass and other Audio-GD gear is normal because they are Class A design circuits which generate a lot of heat. In regards of SQ...

Received my Compass a few weeks back and the HDAM had fallen out of the socket and the legs were all bent. Not difficult to fix, but not the first impression you are looking for... I read earlier posts that mentioned some foam to hold the HDAM in place, but there was no foam in my unit (I...