Anyone finished burning in their TC-7520 yet?

**sponge** · 20-03-2009, 09:46

Originally Posted by Sensimilia

I have put the caps right next to the opamp sockets.

STan

OK, I see them - Marked as MLC7 and MLC10 yes?

I guess it's worth trying a straight swap-out first as the PCB is glued in place so it's not so easy to access the underside of the board without some surgery.

Ken

**SteveW** · 20-03-2009, 13:20

Is anyone going to re-hijack this thread?
op amps..MCL7?
I can see the lips moving but know not what it all means.

**kalozois100** · 20-03-2009, 13:55

Originally Posted by SteveW

Is anyone going to re-hijack this thread?
op amps..MCL7?
I can see the lips moving but know not what it all means.

you could always start a new thread " mod your TC-7520" so that modders post there and leave this thread for comments on a burn't in 7520. your quite right in what you say, i being guilty as everyone else when i haven't even got one in the first place!!

Perhaps one of the admin staff can seperate modding the 7520 into another thread from this one to cater for the needs for all members.

**trailer** · 20-03-2009, 15:47

Originally Posted by SteveW

Is anyone going to re-hijack this thread?
op amps..MCL7?
I can see the lips moving but know not what it all means.

Apologies SteveW I think it was me who got it off on a diversion.

**leo** · 20-03-2009, 16:17

Originally Posted by sponge

BTW Stan, where are the ceramic caps located that Leo mentioned, or could I get away without getting the iron out?

Cheers - Ken

Its just a precaution, a chip like the THS4032 is a fast high bandwidth beastie, sockets add more track and inductance, in some cases this added track is too far away separating the decoupling cap from the actual IC pins which can be enough to cause small stability issues
Once installed and running if it feels hot, the sound goes scratchy,bright or distorting its probably oscillating, if not it should be ok

Agreed regarding moving the modding stuff to the diy section, don't think I can do it on this part of the forum though

**sponge** · 20-03-2009, 16:29

OK Leo, understood - Thanks for that. I have the OPA2132's installed at the moment and I like the sound. I wouldn't say better than the stock chips, just different in a way that I like. The order is in for the THS4032's - Fortunately I have some BrownDog's.

Also, appologies for adding to this thread - Please feel free to move it to the DIY section.

Cheers - Ken

**SteveW** · 20-03-2009, 16:49

Its OK guys..just looking for rave reviews so that I have an excuse to get my credit card out again for my third standac !

**drumlins4ever** · 20-03-2009, 17:07

Originally Posted by sponge

OK Leo, understood - Thanks for that. I have the OPA2132's installed at the moment and I like the sound. I wouldn't say better than the stock chips, just different in a way that I like. The order is in for the THS4032's - Fortunately I have some BrownDog's.

Also, appologies for adding to this thread - Please feel free to move it to the DIY section.

Cheers - Ken

Care to elaborate on how the sound differs with the 2132's ?

**sponge** · 20-03-2009, 19:43

Originally Posted by drumlins4ever

Care to elaborate on how the sound differs with the 2132's ?

OK, I'm hopeless at describing what I hear, so please excuse me - I'll give it my best shot:

I don't know what cans you are using, so I cn only comment on the ones I use - AKG K701's and Sennheiser HD600. These are very different and suit my mood/music/whims perfectly.
The stock 5532 chip works great with the HD600's but with the K701's can sound a bit light with a hard edge in the upper treble at times which doesn't encourage a long listeneing session - A bit tiring.

However, the OPA2132's have the typical "Burr-Brown sound" - Slightly darker but (to my ears) more nicely rounded. The hard edge is gone but the detail and clarity is still there - Exactly why I bought the K701's. I'm no basshead but bass did initially sound less powerful - But I think it's because it's faster and less confused (does that make sense?). The overall effect just makes me want to keep listening.

The AKG's are not easy phones to drive and sound better through a (good) external headphone amplifier without a doubt, but every credit to the TC-7520's headamp - I am looking forward to trying the THS4032's.

Hope this has been some use.

Cheers - Ken

**drumlins4ever** · 20-03-2009, 19:59

Yes a great help , thanks for that , sounds like the 2132's might be up my street.

Found some of these on ebay

http://cgi.ebay.co.uk/BURR-BROWN-OPA...3286.m63.l1177

But they are marked OPA2132P ,are they the same as yours ?

Thread: Anyone finished burning in their TC-7520 yet?

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