Home » R/E/P » Brad Blackwood » Simple mastering console (was DIY EQ)
| Simple mastering console (was DIY EQ) [message #13171] |
Tue, 20 July 2004 23:15  |
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 OTR-jkl
Messages: 845
Registered: April 2004
Location: D/FW, Tx. |
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As much as I need an EQ I sure could use a decent source select/monitor control as well. Anyone have a good DIY kit for that? Maybe we do that one next....
J Lowes · OTR Mastering
Professional Audio Production for Life
www.ShoutLife.com/OTRMastering
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| Re: Any DIY EQ interest? [message #13634 is a reply to message #13171 ] |
Fri, 23 July 2004 12:31  |
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jfrigo
Messages: 1025
Registered: April 2004 |
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| OTR-jkl wrote on Tue, 20 July 2004 21:15 |
As much as I need an EQ I sure could use a decent source select/monitor control as well. Anyone have a good DIY kit for that? Maybe we do that one next....
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That one really is easy. I think DC put up a parts list a little while ago, didn't he? The passive attenuator from Marchand electronics (2k5 in DCs and Brad's case driving the Lavry blue DAC, but 5k might be safer if you aren't sure what you want it to drive), or optionally a DACT if you want to save a bit, and some Shallco switches I think are what he mentioned. Throw a mono switch in there if you want, some wire, and a box, and you're done. There's no power supply and no boards; just point to point wiring for a passive unit. If you want to add meters, that's a little more complex. The easier way is to buy some buffered VUs that are already powered and just put the guts in the monitor box and save yourself the headache. Benchmark has a VU box, but Coleman has 'em even cheaper. They have a non-rackmount pair that are affordable enough to repurpose into an affordable DIY monitor controller.
Jay Frigoletto
Mastersuite
Studio Metronome
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| Re: Simple mastering console (was DIY EQ) [message #14004 is a reply to message #13977 ] |
Mon, 26 July 2004 20:49 |
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bblackwood
Messages: 6833
Registered: April 2004
Location: The home of Rock-n-Roll..... |
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| OTR-jkl wrote on Mon, 26 July 2004 16:26 |
- Your "Process" switch is an input select...? D=?, A=?
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Digital inputs are various DACs, analog inputs are from the tape machine. Technically, they're all analog inputs, so it's the source that's feeding the input (4 dig, 2 analog available).
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- When you select your Monitor source, you are choosing between one of the input sources or the DAW? DAW=playback of captured (processed) material?....pre A/D into DAW or post D/A to amp?
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Monitor source selects between any of the 6 process inputs (pre-procesing) and the output of the DAW (post-processing).
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- How do you do level matching for Pre/Post comparison?
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Back the ceiling down on the L2 (last piece in the chain).
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- Where do the Mono & Mute switches fall in the chain?....before or after the Level Atten.?
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Post attenuator so the attenuator load (2k5) is always present to whatever is driving it.
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- Are all the grounds on the XLRs (pin 3) open? (you didn't attach them to anything)
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Depends on where they are. i forgot exactly how we decided to d it (as it's easy to change), but I think all P3s go to chassis...
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Just curious: Do you use a patch bay to decide what gear is Insert 1, Insert 2, etc...? or are they "fixed"?
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All fixed, but I can't think of a reason to change it. Never have liked EQ post compression.
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Man, is that your Level atten. on the Marchand site for custom attenuators?
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Yep, Phil was quite proud of his work, and he should be - it's quite stunning!
Brad Blackwood
euphonic masters
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| Re: Simple mastering console (was DIY EQ) [message #14012 is a reply to message #13171 ] |
Mon, 26 July 2004 22:46 |
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OTR-jkl
Messages: 845
Registered: April 2004
Location: D/FW, Tx. |
Gold Member |
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| Quote: |
Quote:
- When you select your Monitor source, you are choosing between one of the input sources or the DAW? DAW=playback of captured (processed) material?....pre A/D into DAW or post D/A to amp?
Monitor source selects between any of the 6 process inputs (pre-procesing) and the output of the DAW (post-processing).
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OK, so if you choose DAW as the monitor source, its just a hardwire from the "DAW" input (whatever that soundcard or convertor is - D1, D2, D3 or D4) bypassing all the inserts...?
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Quote:
- Are all the grounds on the XLRs (pin 3) open? (you didn't attach them to anything)
Depends on where they are. i forgot exactly how we decided to d it (as it's easy to change), but I think all P3s go to chassis...
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Could it be that its set up so that the ground "drains" at the input of each device? (or is it the output? - I forget...)
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Quote:
Just curious: Do you use a patch bay to decide what gear is Insert 1, Insert 2, etc...? or are they "fixed"?
All fixed, but I can't think of a reason to change it. Never have liked EQ post compression.
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I was thinking more along the lines of if you're lucky enough to have more than 6 pieces of gear and you want to be able to pick & choose what gets used for a particular track...
Did you end up using that downloadable face plate design pgm you posted the link to on the old thread? Where'd you get the knobs? (bet it would've sounded better if they were oak...ha!)
So full of questions.... 
J Lowes · OTR Mastering
Professional Audio Production for Life
www.ShoutLife.com/OTRMastering
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| Re: Simple mastering console (was DIY EQ) [message #14013 is a reply to message #14012 ] |
Mon, 26 July 2004 22:58 |
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bblackwood
Messages: 6833
Registered: April 2004
Location: The home of Rock-n-Roll..... |
Platinum Member |
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| OTR-jkl wrote on Mon, 26 July 2004 22:46 |
OK, so if you choose DAW as the monitor source, its just a hardwire from the "DAW" input (whatever that soundcard or convertor is - D1, D2, D3 or D4) bypassing all the inserts...?
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It takes the output of the workstation, whether it's playing back something already mastered or simply following input when record enabled.
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Could it be that its set up so that the ground "drains" at the input of each device? (or is it the output? - I forget...)
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We went round and round about it and decided to take all P3 t ground, if memory serves, knowing we could easily snip them if ground loops appeared. None did.
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I was thinking more along the lines of if you're lucky enough to have more than 6 pieces of gear and you want to be able to pick & choose what gets used for a particular track...
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I can't imagine needing more than 4 processors, to be honest (what I have now ) though I want one of the DIY EQ's we're gonna build and have a buddy working on modifying an Dom II as well...
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Did you end up using that downloadable face plate design pgm you posted the link to on the old thread? Where'd you get the knobs? (bet it would've sounded better if they were oak...ha!)
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Yah, these guys rock. Knobs are Elmas...
Brad Blackwood
euphonic masters
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| Re: Simple mastering console (was DIY EQ) [message #14058 is a reply to message #13171 ] |
Tue, 27 July 2004 10:30 |
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OTR-jkl
Messages: 845
Registered: April 2004
Location: D/FW, Tx. |
Gold Member |
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| Quote: |
| OTR-jkl wrote on Mon, 26 July 2004 22:46: |
OK, so if you choose DAW as the monitor source, its just a hardwire from the "DAW" input (whatever that soundcard or convertor is - D1, D2, D3 or D4) bypassing all the inserts...?
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It takes the output of the workstation, whether it's playing back something already mastered or simply following input when record enabled.
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Sorry, let me ask it another way:
In DAW Monitor mode, is it simply a hard-wire connection inside the box from the XLRs that carry the output of the DAW straight to the Monitor switch?
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I was thinking more along the lines of if you're lucky enough to have more than 6 pieces of gear and you want to be able to pick & choose what gets used for a particular track...
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I can't imagine needing more than 4 processors, to be honest (what I have now ) though I want one of the DIY EQ's we're gonna build and have a buddy working on modifying an Dom II as well...
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I thought you had more than 4 pieces of gear. Let me guess... STC-8, Ibis, Sontec, dbx Quantum, L2. What else...? I'm just thinking that if an ME had like 8 boxes and he were using your ATC-1, he would need a way to select the ones that he wants to put in the chain on any given track - whether its only 2 or 6 or however many... (If 6 are "fixed" - probably the most used - then he'd need a way to tie in the other two when he wants to use one or both of them.)
Suppose you end up with more than 6, how will you tie them in? Patch bay, change wiring, ???
(Sorry for being so nosy...  )
J Lowes · OTR Mastering
Professional Audio Production for Life
www.ShoutLife.com/OTRMastering
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