Siegfried Meier

Sony MXP3000
« on: January 08, 2021, 12:11:50 AM »
Hey guys!

Any love here still for the old MXP3000's?  I know the line outs and the mic pre has that weird non-repairable opamp...but that was some years ago.  Has someone found a way to fix these?  We're taking one of these 36 channel beasts in at no charge, and just debating whether the console is worth the install or not at this point - it's in excellent shape, has very low hours...it would potentially be replacing our TAC Magnum which I've done tons of repairs and mods to, but the Sony has lots over the TAC...better patchbay, fully balanced IO, nice VU meters, meter bridge can ACTUALLY hold speakers, there's 4 different styles of EQ in this specific desk, and the routing is fantastic...

Anyway, as far as client draw goes, i'm not too concerned about that...no one seems to care about that kinda stuff these days, and we have racks of preamps and outboard so I'm not too worried about what's on the console...but for the things mentioned, and the fact that it's here in our storage space...anyway, you get the idea.

Any thoughts much appreciated!!
Thanks,
Sig


peterc

Re: Sony MXP3000
« Reply #1 on: January 08, 2021, 07:01:16 AM »
I used to work on one back in the 80s. Was an excellent console. It was bought by a major studio attached to a record label here in the mid 90s and was retired about 5 years ago.

Mine had 4 channels of 10 band EQ and 4 channels of the inductor EQ, which I found very disappointing. Soft and mushy, not very pleasing to my ear.

Th standard mic pres and EQ are excellent, and had it paired to a Sony 3324 machine, and this was a great combo. We had the version the mic pres that were a Jensen feeding an NE5534, similar to an SSL. There was also a transformerless mic pre. The schematics are in the Technical Docs section here.

The only issue I had was the lack of inputs. We had the extra 8 VCA channels, and used the bus inputs as well, but in the synth-intensive 80s had to do a lot of patching. The automation needed booting every couple of hours, but that was OK as it was disc based and I only lost the last pass.

For free? Sounds like a good deal.
« Last Edit: January 08, 2021, 07:04:27 AM by peterc »
If opportunity doesn't knock, build a door.

Siegfried Meier

Re: Sony MXP3000
« Reply #2 on: January 08, 2021, 09:30:37 AM »
Thanks for the info man!

Ya, it was passed onto us 2 years ago and it sat in a satellite studio of ours during that time just looking pretty - the owner doesn't have room for it to take it back, and our satellite studio is closing now as a result of a lease termination...so the console has to come back to our main studio now for storage, somehow.  I wondered if it might just be better to install it and use it here instead of our TAC Magnum.

The thing is, we have no shortage of consoles here - I've acquired a bunch of neat things over the years and they all need some degree of repair - I'd say the TAC prob is in the best shape, needing the least amount of work.  EQ's in it sound cool, I never use the preamps and it looks pretty.  But, the patchbay is weak and much of it is not balanced IO.  But, again...the Sony would just be a sidestep in terms of tone, and it is a little bigger of a footprint.

As much as I'd love to install a Neve or an SSL in here, it's just not worth it.  My clients come to work with me, and I don't rent out this studio to others.  For what it's worth, I worked on an MXP3000 in the early 2000's for over 4 years and loved the routing and functionality of the desk.  Any mixes that didn't sound good on it weren't the fault of the console haha.  I've read about that Forsell master section mod, but I doubt it's still available.
« Last Edit: January 08, 2021, 09:56:04 AM by Siegfried Meier »

porkyc

Re: Sony MXP3000
« Reply #3 on: January 08, 2021, 10:17:28 AM »
The MXP3000 was everything the MCI JH600 should have been. I think the project engineer was Ted Staros and they went and looked at all that was wrong with the JH600 and fixed the problems.
It had the best light meter package that could be almost whatever standard you wanted. Choice of VCA package, dBx/Valley People/B&B Audio. 4-band EQ with split filter. (HP Filter in Channel, EQ in Monitor path) Choice of mic pre.
The line O/P balancing is just the MCI x-coupled line driver on a potted PCB. The tx-less mic pre will use the LM394. Whole thing crystal clean.
But at the time, it was too small and it wasn't an SSL.

Youngwhisk

Re: Sony MXP3000
« Reply #4 on: January 08, 2021, 04:45:20 PM »
This should be the schematic for the green potted module. In reply 7.

https://groupdiy.com/index.php?topic=44790.0

Siegfried Meier

Re: Sony MXP3000
« Reply #5 on: January 08, 2021, 04:56:29 PM »
The MXP3000 was everything the MCI JH600 should have been. I think the project engineer was Ted Staros and they went and looked at all that was wrong with the JH600 and fixed the problems.
It had the best light meter package that could be almost whatever standard you wanted. Choice of VCA package, dBx/Valley People/B&B Audio. 4-band EQ with split filter. (HP Filter in Channel, EQ in Monitor path) Choice of mic pre.
The line O/P balancing is just the MCI x-coupled line driver on a potted PCB. The tx-less mic pre will use the LM394. Whole thing crystal clean.
But at the time, it was too small and it wasn't an SSL.

It's funny how things change over time?  Now, the console finally gets the respect it deserved haha.  Well, I think we might go ahead and install this baby...

L´Andratté

Re: Sony MXP3000
« Reply #6 on: January 09, 2021, 05:47:01 AM »
LM394?
Schematic says 2x rohm 2sd786 low noise npn---
"Why not get an assistant to work the faders? Real vintage! And maybe cheaper... ;)"

porkyc

Re: Sony MXP3000
« Reply #7 on: January 09, 2021, 11:26:44 AM »
I did rather assume they would still use the LM394 so that could be a problem (JH600 and 500 used these), but all the better that they did not.
The main point being that the console is worth saving if it fits the requirement.

Siegfried Meier

Re: Sony MXP3000
« Reply #8 on: January 09, 2021, 10:36:04 PM »
I did rather assume they would still use the LM394 so that could be a problem (JH600 and 500 used these), but all the better that they did not.
The main point being that the console is worth saving if it fits the requirement.

And I think it might!!  I absolutely love our TAC Magnum, and I did so much work to it over the years that I feel guilty pulling it out of here.  But, I made a pros and cons list to the 2 consoles and the Sony tends to win over every time.  I should mention that I also have a pair of Mitsubishi Westar consoles here that I saved from e-waste a few years back too.  I thought about putting one of those in, but at the time it was too much work for diminishing returns so they're just in storage here for the time being.  I think the Sony is still a better option over the Westars though...

Siegfried Meier

Re: Sony MXP3000
« Reply #9 on: January 15, 2021, 08:39:25 PM »
In terms of power supply, how realistic is it to think that we can turn this console on and off at will?  I'm not referring to every day, but let's say there's a 3 week session and then I'm not in there for another few weeks...can we shut it down for that time when not in use without damage to the PSU?  I realize these older desks need a few hours to fully warm up for usage, and that's ok in my opinion - we have the time.

I know the new SSL Origin console has an intelligent PSU that has sleep modes with a timer for when the console comes back and and uses full current draw - pretty clever.


peterc

Re: Sony MXP3000
« Reply #10 on: January 16, 2021, 08:29:20 AM »
I used to power the console everyday over the space of 3 years, no problems at all. The automation power supply HAD to be powered on after the main supply, though.
If opportunity doesn't knock, build a door.

Siegfried Meier

Re: Sony MXP3000
« Reply #11 on: January 16, 2021, 11:59:43 PM »
I used to power the console everyday over the space of 3 years, no problems at all. The automation power supply HAD to be powered on after the main supply, though.

You powered it off and back on each day?

peterc

Re: Sony MXP3000
« Reply #12 on: Today at 02:54:24 AM »
Yep, each day.
If opportunity doesn't knock, build a door.

abbey road d enfer

Re: Sony MXP3000
« Reply #13 on: Today at 03:09:12 AM »
I realize these older desks need a few hours to fully warm up for usage, and that's ok in my opinion - we have the time.
Seems like a myth to me. I understand that reaching thermal equilibrium takes some time for a large mixer, but are there any temperature sensitive elements that justify waiting? The only thing I can think of is the VCA's, and even then the effects of temperature are just a small gain drift.

Quote
I know the new SSL Origin console has an intelligent PSU that has sleep modes with a timer for when the console comes back and and uses full current draw - pretty clever.
I'd be curious to know the justification behind that. Looks pretty anthropomorphic to me...
I certainly understand the interest there is in minimizing current surges, but turning off an electronic apparatus shouldn't be a concern.
Who's right or wrong is irrelevant. What matters is what's right or wrong.
Star ground is for electricians.

porkyc

Re: Sony MXP3000
« Reply #14 on: Today at 11:45:07 AM »
Going back to the Westar.
The Q8 Westar came out when Tom Hay (MCI Chief Engeineer) left and went to Q8.
The MCI JH600 circuitry and the subsequent Westar seemed rather similar. I looked at a manual of the Q8 film console derived from the Westar and was surprised at the similarity.
The Q8 light meter is a led version of the MCI JH500 LM with modern chips.
The MXP is better for the reasons I outlined earlier.


 

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