Holger

500-series compatible JLM Opto-Compressor (pics)
« on: June 18, 2011, 06:35:08 AM »
Just to share it here (already posted in Frank's German forum):
A JLM Audio MAC in combination with a JLM Dingo and Volker's little connector PCB.

The (very useful) opto compressor is connected via the Dingo. For the de-balancing part I used a DOA, the balancing part is done with the good old 5532.
The front panel is powder coated, it's absolutely clear that I used a way too small font here. In the future I'll use no fonts smaller than 2mm.
Joe has a new IN5X PCB for this kind of projects, it allows to use a DOA to drive an output transformer.

http://www.jlmaudio.com/shop/index.php?_a=viewProd&productId=128










06/18: Edited title


zayance

Re: JLM 500 Compressor
« Reply #1 on: June 18, 2011, 06:43:53 AM »
Very nice combination  8)

EmRR

Re: 500-series compatible JLM Opto-Compressor (pics)
« Reply #2 on: June 18, 2011, 10:41:33 AM »
Nice work!
Best,

Doug Williams
Electromagnetic Radiation Recorders

"I think this can be better. Some kind of control that's intuitive, not complicated like a single knob" - Crusty

"Back when everything sounde

Re: 500-series compatible JLM Opto-Compressor (pics)
« Reply #3 on: June 18, 2011, 12:45:26 PM »
I think the font may have been good, if the infill was black instead?

Nice unit tho..

radiance

Re: 500-series compatible JLM Opto-Compressor (pics)
« Reply #4 on: June 18, 2011, 03:02:36 PM »
Yes, very nice...and I agree with desol.
Font is ok. I dislike big chunky lettering on frontpanels.
"Knowing that you are dreaming, however, does not automatically guarantee full rationality.
Then again, being awake doesn't ensure good thinking, either." -  Lynne Levitan

mylesgm

Re: 500-series compatible JLM Opto-Compressor (pics)
« Reply #5 on: June 18, 2011, 10:01:03 PM »
nice front panel...did you make that or ?
Check my work at www.mylesmumford.com

alexc

Re: 500-series compatible JLM Opto-Compressor (pics)
« Reply #6 on: June 19, 2011, 08:27:43 AM »
I put a JLM MAC opto into a channel strip rack job I was doing.

Used as a sidechain with the opto resistance shunting the channel fader.
Has some interesting quirks when used this way.

Neotek Series 3 with added FET DI and a bunch of transformer inputs and outputs.

Have to say I've been very nicely surprised by the MAC - really great compression.

A really nice compressor, you might say!
I ping therefore I am

michal_k

Re: 500-series compatible JLM Opto-Compressor (pics)
« Reply #7 on: June 19, 2011, 11:19:15 AM »
I looks great! What meter is that? How does it sound?

frans

Re: 500-series compatible JLM Opto-Compressor (pics)
« Reply #8 on: June 19, 2011, 11:28:50 AM »
Holger, looks great! I get the feeling I can build one, too  :) and when I saw on Joe's site he will come up with the metalwork, too - joy, joy, joy! As Ren & Stimpy put it.
Insert witty one-liner here

okgb

Re: 500-series compatible JLM Opto-Compressor (pics)
« Reply #9 on: June 19, 2011, 04:06:53 PM »
I can't tell you how much  I hate you ................
[ or just extremely envious ]
GKB Audio / Greg Boboski


Holger

Re: 500-series compatible JLM Opto-Compressor (pics)
« Reply #10 on: June 20, 2011, 05:44:34 AM »
michal_k, the meter is a Sifam AL 15 Retro, one of the last meters that fit into 1 RU projects. Available at Canford.
The compressor is, like most opto compressors, very useful on vocals etc. I recently used it for voice over recordings, it simply keeps
the level into range, unobtrusive and smooth. Can be a beast also at extremer settings.
This is my third MAC channel, I've built a dual 19" version years ago.
Please look at Joe's forum, start from here:
http://www.jlmaudio.com/forum/viewtopic.php?f=2&t=63#p602


Some questions came up regarding front panels/powder coating etc. Since I've tried a couple of methods for front panel manufacturing I would like to share my experiences and start a new thread about front panel related stuff like powder coating vs. anodized vs. painted panels etc.


Re: 500-series compatible JLM Opto-Compressor (pics)
« Reply #11 on: June 20, 2011, 12:47:19 PM »
That's really nice. I was looking at the comp recently, it seems like a neat little solution. Nice that it fits in 500 as well.

I'm curious to see that metal thread, I'm getting close to finishing up the 500 series pultec project and this the one place I've had the most issues. Looking forward to seeing your experiences..

cheers!

Holger

Re: 500-series compatible JLM Opto-Compressor (pics)
« Reply #12 on: January 13, 2012, 08:54:26 AM »
Just for the records:
I decided to design a new front panel and added a Haufe output transformer. Now it has the same look as my little meter.



AP carrier

Re: 500-series compatible JLM Opto-Compressor (pics)
« Reply #13 on: January 13, 2012, 09:11:46 AM »
Your front panels look fantastic!

The MM500 is to measure the output level and compression of other devices? If so, that is very handy to have as a seperate device.

Andrew


 

Related Topics

  Subject / Started by Replies Last post
17 Replies
4086 Views
Last post December 30, 2008, 07:56:39 AM
by okgb
4 Replies
2463 Views
Last post February 12, 2010, 10:26:05 PM
by pucho812
0 Replies
1911 Views
Last post July 08, 2011, 07:46:56 AM
by Holger
0 Replies
417 Views
Last post October 19, 2018, 03:51:48 PM
by surfkat