soundtrane Posted May 4, 2013 Report Share Posted May 4, 2013 Does anyone think it is possible to mod the MixPreD to let the XLR outputs be used when connected as a USB device to a computer? As it is, it only provides output from computer to the headphone out. -vin Quote Link to comment Share on other sites More sharing options...
Tom Visser Posted May 4, 2013 Report Share Posted May 4, 2013 No, not possible, as the USB function is hardwired to the monitoring output only. What you might be able to do is route the headphone output back to the tape return and set the return to be configured as inputs 3/4, but of course you would get massive feedback loop if you ever deselected the USB return as the source, and of course in your DAW, you wouldn't be able to monitor the MixPre's input, sort of defeating the point of using it as an interface in the first place, unless you were ok muting the monitoring path during record passes... such as might be ok for separate record and playback situations. Quote Link to comment Share on other sites More sharing options...
Tom Visser Posted May 4, 2013 Report Share Posted May 4, 2013 I mean... if you mean mod by opening the unit up and doing some frankenstein wiring jumpers / switches... yes, I suppose so, but your talking about relatively intricate SMD traces your going to try to lift / tap onto and a pretty tight case to begin with. I don't think there's going to be much room in there to add anything at all, even simple switches. USB Pre is the device that you want to look at I think. Quote Link to comment Share on other sites More sharing options...
soundtrane Posted May 4, 2013 Author Report Share Posted May 4, 2013 Tom, thanks for the precise explanation... I was hoping the mixPreD would serve two purposes - as an AD converter and as a USB interface for my Pro Tools setup. Asking too much i guess... I wish the USB Pre2 had AES outs as well... Quote Link to comment Share on other sites More sharing options...
Cloud Wang Posted May 4, 2013 Report Share Posted May 4, 2013 it doesn't do mono monitoring ,isn't it ? or i didn't read manual carefully ? i love the pre-D so much, using it as my laptop's speaker amp now :-) great ! Quote Link to comment Share on other sites More sharing options...
Tom Visser Posted May 4, 2013 Report Share Posted May 4, 2013 No mono, or L / R monitoring, which would have been nice to sort of "solo" the inputs. Easy enough to accomplish though with a little outboard device. Quote Link to comment Share on other sites More sharing options...
Matt Mayer Posted May 4, 2013 Report Share Posted May 4, 2013 I wish the USB Pre2 had AES outs as well... The S/PDIF output isn't sufficient for your application? Quote Link to comment Share on other sites More sharing options...
Tom Visser Posted May 4, 2013 Report Share Posted May 4, 2013 SPDIF wired to XLR in most cases will work with AES inputs. The only difference signal wise is the absence of a flag in the digital word and of course the impedance. If the impedance is going to be an issue, like you have to transmit the signal a long distance or worried about reflections, Canare and Neutrik make handy 75 ohm to 110 ohm transformers. Quote Link to comment Share on other sites More sharing options...
soundtrane Posted May 4, 2013 Author Report Share Posted May 4, 2013 Matt, I'd rather have a professional AES out than tinker around with impedance matching xformers etc. If the MixPreD or the USB Pre2 could work with my computer as an interface that does the job of the Mbox, I'd be really happy. I have a device i can use in the field as a professional mixer (with 48V Ph, MS, Low Cuts etc) as well as my computer interface which gives me professional XLR3 balanced analog outs as well as an AES out which i can use with my field recorder. In the world as it is now, i have to get BOTH the devices to do what i want. Not the most efficient way out. just my humble opinion... -vin Quote Link to comment Share on other sites More sharing options...
soundtrane Posted May 4, 2013 Author Report Share Posted May 4, 2013 Mr. Visser, many thanks for your explanation and assistance. I'm waiting for the Visser version of the handheld recorder... Please count me in as a prospective client. Quote Link to comment Share on other sites More sharing options...
Tom Visser Posted May 5, 2013 Report Share Posted May 5, 2013 Mr. Visser, many thanks for your explanation and assistance. I'm waiting for the Visser version of the handheld recorder... Please count me in as a prospective client. Just like the Smith's lyrics "I was looking for a job and then I found a job, heaven knows I'm miserable now". Well, not miserable, but all side projects on hold for a little bit until I get past this summer schedule of shooting. I did make some progress since I last updated the thread, but this is not the time and place to go into that. In the mean time, I've already drawn up PCB layouts for my next project. For me it's easy to start things, more difficult to find the time to finish them. Quote Link to comment Share on other sites More sharing options...
soundtrane Posted May 5, 2013 Author Report Share Posted May 5, 2013 So the search is on - is there a device that can do what i want it to do? Quote Link to comment Share on other sites More sharing options...
Tom Visser Posted May 5, 2013 Report Share Posted May 5, 2013 With respect to the interface question, what are all your parameters? Quote Link to comment Share on other sites More sharing options...
soundtrane Posted May 6, 2013 Author Report Share Posted May 6, 2013 basically the best of both the USB Pre and the MixPreD, if you ask me. Quote Link to comment Share on other sites More sharing options...
Tom Visser Posted May 7, 2013 Report Share Posted May 7, 2013 My vote is for the Metric Halo ULN2 if you can do Firewire. Quote Link to comment Share on other sites More sharing options...
soundtrane Posted May 8, 2013 Author Report Share Posted May 8, 2013 Tom, thanks for this. 1700$. Looks like the price of a mixpreD+USBPre -vin Quote Link to comment Share on other sites More sharing options...
soundtrane Posted May 12, 2013 Author Report Share Posted May 12, 2013 Tom, I gave up on spending 1700 and spent 50 on some Sabre-chip mini DAC. Let's see how this sounds on my iMac 2009... Quote Link to comment Share on other sites More sharing options...
soundtrane Posted May 12, 2013 Author Report Share Posted May 12, 2013 here's what i have ordered, lets see how it works out - HiFimeDIY Sabre Tiny USB DAC, Digital to Audio Converter (PCM2706+ES9023) and HiFimeDIY Sabre USB DAC 2. External PSU, 96khz/24bit - ES9023+TE7022 + Coaxial OUT Quote Link to comment Share on other sites More sharing options...
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