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Pro-Ject Debut III USB Preamp Advice
Engelsstaub
post May 10 2012, 16:13
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I have the turntable mentioned in the title. I suppose it's no big news that the USB-out is sometimes too loud (no gain adjustment) with some vinyl (which results in clipping,) especially nearly every double-LP I own. Much to my dismay it also happens with a few regular ones like my mint original-pressing Black Sabbath "Mob Rules." For about 70% of my LPs it's fine, though "limited" to 16-bit resolution for recording.

My questions are these:

Would it be feasible to use something like the M-Audio Firewire Solo Amazon to record my needledrops from the preamp's RCA-outs to my Macintosh? (I'm using VinylStudio and it's pretty great IME.) If so, would I be able to effectively do so at 24-bit? (I don't imagine I hear any difference, but would like to do so for editing purposes.)

Any recommendations/good advice is greatly appreciated. (I wish I had researched this TT before I bought it. I'm considering trading it in later and getting a regular Debut III or something else in their line-up for under 800 USD...that's just not going to happen anytime really soon. I'm otherwise pleased with this TT's performance, so I wouldn't mind coming up with a good workaround. I get great results with many records and the hardware/software combingation.)

Pretty new to digitizing vinyl, so please forgive my ignorance.


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The Loudness War is over. Now it's a hopeless occupation.
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Apesbrain
post May 11 2012, 21:06
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@OP, I now understand and I'm sorry for the misinformation in my earlier response. When you spoke of taking the TT output from the "preamp" I took that to mean you had a separate stereo preamp in your chain which you could use to reduce the gain. I see now that by preamp you meant directly out of the line level outputs on the back of the TT. So, as others have already said, you still may need some way of reducing the TT line out level. The Tascam models both have L/R gain controls that may be sufficient.

If you have a stereo RCA to 1/8" cable lying around, then try the "cheap and cheerful" test that mixminus1 (and AndyH-ha) suggested above. Run the TT preamp outs directly into the audio line in on your Mac. Open up your recording software, set it to record from your internal ADC, and see if one of the problem LPs is still too hot. Presumably, your software has gain controls that can be used to adjust recording levels. As mixminus1 said, for those few problem LPs you may be fine just using the Mac's internal ADC for your needledrop. For that matter, you may prefer the results you get using the internal ADC.

It's a little confusing, but I think this page is indicating that your Mac ADC can create samples up to 24/96 or 24/192?

This post has been edited by Apesbrain: May 11 2012, 21:10
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Posts in this topic
- Engelsstaub   Pro-Ject Debut III USB Preamp Advice   May 10 2012, 16:13
- - Apesbrain   Absolutely, so long as you run the TT line level o...   May 10 2012, 20:30
- - mixminus1   @Apesbrain: The OP's turntable has a preamp bu...   May 10 2012, 20:35
- - Engelsstaub   Thanks for the replies. Apesbrain: yeah, this part...   May 10 2012, 22:46
- - AndyH-ha   Clipping via the USB connection is caused by the a...   May 11 2012, 01:54
|- - Engelsstaub   QUOTE (AndyH-ha @ May 10 2012, 19:54...   May 11 2012, 03:09
- - mixminus1   No, Andy's saying that the outputs of the inte...   May 11 2012, 03:42
- - AndyH-ha   "it would have to be a VERY hot phono pre...   May 11 2012, 04:55
- - Engelsstaub   mixminus1: my Mac is a late 2010 13" MacBook ...   May 11 2012, 16:45
- - AndyH-ha   I can be of only limited help here but you should ...   May 11 2012, 20:53
- - AndyH-ha   The possibility also exist that you might not have...   May 11 2012, 20:59
- - Apesbrain   @OP, I now understand and I'm sorry for the mi...   May 11 2012, 21:06
- - Engelsstaub   Well, I do have a RCA-to1/8" cable that I use...   May 12 2012, 02:28
- - AndyH-ha   "I adjusted the volume to max out at around 9...   May 12 2012, 03:18
- - Engelsstaub   Nah, I had it turned all the way up on the Mac...   May 12 2012, 04:09
- - AndyH-ha   It seems rather strange that a recording applicati...   May 12 2012, 06:55
- - punkrockdude   What cartridge is it on the turntable? Just asking...   May 12 2012, 14:39
- - Engelsstaub   punkrockdude: it's the stock Ortofon OM5e that...   May 12 2012, 14:57
- - AndyH-ha   QUOTE I'm gathering from everything you've...   May 12 2012, 20:52
- - Engelsstaub   Alright. Thanks for your reply and your patience, ...   May 12 2012, 21:39
- - AndyH-ha   Have you determined that you get clipping using yo...   May 12 2012, 23:16
- - Engelsstaub   Yes, this and a few other records seem to clip in ...   May 13 2012, 00:18
- - Arnold B. Krueger   QUOTE (Engelsstaub @ May 10 2012, 11:13) ...   May 14 2012, 12:59
|- - Engelsstaub   QUOTE (Arnold B. Krueger @ May 14 2012, 06...   May 14 2012, 15:18
- - dhromed   QUOTE Audacity has a clipping indicator. I'm w...   May 14 2012, 15:33
- - Engelsstaub   Oh, ok, Thanks, dhromed. I think I understand how...   May 14 2012, 16:27
- - AndyH-ha   If you were looking at music that had been mastere...   May 15 2012, 03:18
- - Engelsstaub   Hey, AndyH (or anybody else reading) ...as long as...   May 15 2012, 18:05
- - AndyH-ha   According to the manufacturer's literature, th...   May 15 2012, 21:36
- - Engelsstaub   Great. Thanks for your help, Andy (and also everyo...   May 16 2012, 01:19


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