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renkinj

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  1. Isn't there a 31 band equalizer in PM? It is in the advanced settings. Or are you looking for a different implementation? Certainly you can use theirs or add one in if you want already.I use theirs for pseudo-room correction already and, although not perfect, it is quite good. I have learned a lot from this thread, in spite of what I hope now appears to be good natured bickering ;-) I think the advice on aggregate devices is excellent, it allows a way to accomplish something with PM that fits with at least a DIY mentality (that suddenly provides me with too many discreet DACs to want to buy a multi-channel one). I am not sure the folks at PM need to make a better way to do this. Maybe, if they have time, they could make it work a little better, but the option is already there and not unreasonable in my mind. They can't do everything for everyone. And wow, this program does a whole lot already!
  2. I agree. I found the explanations for setting up the digital XO so confusing because I was missing the obvious. I just assumed that the functionality to drive more than one device was there, when it is not. I suppose I could just run it through Audio Hijack Pro. I have it and it inserts itself after everything else. I just am not sure if it would adversely effect the excellent processing of PureMusic. ie: is AHP 64 bit perfect? My experience with AHP is that anything that boosts the signal, adds too much distortion. Aside from this being a little frustrating, I love PM. Maybe I should point the developer to this thread...
  3. Thank you for your answers. Sigh, it always is more complex than it seems. But it does give me yet more things to try, so the game goes on. I was planning to use a HiFace but it does require a driver, so that is out. I do have two other DACs, so I could try them. Here is Channel D's response, do you have any clock issues?: Hello, You need a DAC / audio interface with more than two output channels. This can be 4 or more analog outs, or two or more analog plus a S/PDIF output (they have to appear to the Mac as four output channels). In the latter case, an outboard DAC could be connected to the S/PDIF. It is not practical to connect independent DACs and have this work properly, there is no way to synchronize the sample clocks of independent DACs. Pro audio DACs have this capability but then again they will also generally have more than two analog output channels. See our website for examples: http://www.channld.com/support-soundcards.html http://www.channld.com/computeraudio.html A Mac Mini G4 may be a little under-powered for doing this, anyway. The Mini (and the laptops) used a low-power (and lower performance) variant of the G4 processor, so it is even less capable than a desktop G4 (tower or iMac). Thank you, Rob Robinson Channel D Support
  4. I want to say thanks for this thread. I have been searching for a way to do this, not really understanding Bus architecture and you have the most coherent thread on the web. I was arriving at the aggregate device and just plugging in to try it, but now I see that it can work and have a path. Very appreciated. The PM instructions are a little vague. A few simple questions, since I just found this and haven't tried anything (and with the 11 month old, it will happen at the pace of molasses in the antarctic...)yet. 1. with the two DAC set up, I assume they were USB DACs, did you just plug them into separate USB ports? 2. You mention setting both device outputs to the same bitrate, you used 24/96. Is there a problem with two devices that accept different bitrates? I have a DAC that accepts 24/192 and another two that accept 16/44. I was hoping to use the 24/192 for the full range and one of the others for the subs. Do you think there will be issues with that and PM will just downsample to the lowest common denominator? Eventually to play! Thanks again. -j
  5. Thank you for this post. I am just having this same problem. It is a long story, so I won't go into the details, except that I thought it was my new DIY speakers and it took a while to localize the problem. I recently swapped a G4 mac mini (worked great as a music server)for an intel imac that is a few years old (maybe 3 1/2). I had thought the mac mini had died, but it turned out to be my external hard drive. so with the newer mac, running 10.5.8, into the same system as before (below), a terrible harsh distortion arises with the volume slider set above about 1/3 of the way. If I stay below that, I can crank up the amp volume with out recreating the problem, so it clearly is distortion from the digital volume control of the imac sound card. I will set the old mac mini up again and make sure it was fine, but it was before and was running the same OS, so I do not think this is an OS problem, rather a hardware problem. I find it interesting that you found a single high end DAC that worked. Mine is quite high end and although I guess it could be a "synergy" thing, I think that is a stretch. I will try another DAC just in case, I have that option. I am interested in how you got the other DAC to work and if you have figured anything else out about this. Am I just going to have to use archaic old macs as music servers until they no longer exist? System: imac USB out (itunes and audiohijack pro, Red Wine Isabellina USB DAC (NOS), Sophia Electric PP KT88 tube amp (also tried a SS McIntosh 2105) to several speakers including Acoustic Zen Adagios. DIY BIB with Fostex 208 sigma, same with 208s out and Hemp FR8.0 in, and Nhor.
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