Mod your Beresford 7520

[StanleyB]

Anyone tried the MLC5/MLC6 mod yet? I showed a picture of it some time ago. They are the two yellow caps (100pF) either side of the first opamp. It works very well with the NE5532 and LM4562. The THS4032 might have too much of a slew rate for that mod though. Just cut one side of the leg on each of the cap. That way you can solder it back reasonably easy if you don't notice a difference etc. In case you wonder what it does: it gives a more analogue sound with the NE5532 and LM4562.

Stan

[Derro]

Was the OPA2107 a straight plug in replacement? Are you using in both sockets, or just to drive the line outs?

Yes, the OPA2107 is a straight drop in replacement and yes, I am using them in both positions.

Hope this helps.

Derro

[Affinity]

I'm using the THS4032 now, but i'm looking for a warmer, fuller sound. Does the OPA2107 provide this? And where did you buy it?

[Derro]

I'm using the THS4032 now, but i'm looking for a warmer, fuller sound. Does the OPA2107 provide this? And where did you buy it?

I know exactly what you mean and absolutely, the OPA2107 does indeed give you that slightly warmer and fuller sound with more body to it. I do believe that this could be exactly what you are looking for.

I bought it from my local RS- Radionics shop in Dublin. Part No 263-453 and are €18 each, plus vat. A common enough chip so should be no problem getting it from other sources - Farnell or RS....

Regards

Derro

[StanleyB]

Do the MLC5/MLC6 mod and you'll have a warmer and fuller sound.

Stan

[rhmjmango]

Do the MLC5/MLC6 mod and you'll have a warmer and fuller sound.

Stan

Hi Stan,

Not so easy to cut one of he legs. its so tight down there to get access to the legs. What kind of plier did you use?

Rob

[StanleyB]

I use a pair of hobbyist electronic side cutters. You can of course desolder the caps.

Stan

[lovejoy]

Anyone tried the MLC5/MLC6 mod yet? I showed a picture of it some time ago. They are the two yellow caps (100pF) either side of the first opamp. It works very well with the NE5532 and LM4562. The THS4032 might have too much of a slew rate for that mod though. Just cut one side of the leg on each of the cap. That way you can solder it back reasonably easy if you don't notice a difference etc. In case you wonder what it does: it gives a more analogue sound with the NE5532 and LM4562.

Stan

Hi Stan,
I notice there are also 2 extra 100uf 'lytics in that photo straddling a couple of resistors (although you can't quite see where one of the legs is going on the right cap). Is this part of the same mod, or something different?

I shall give the MLC5/6 mod a go this week. Could be just what I am after. I love the detail and the extra control in the bass that the 4032 gives, but I do find listening fatigue creeps in after a while, it's just that bit too bright. I guess my Mark I Arcs don't help here though. So I'm back on the 4532 for now.

[StanleyB]

The extra caps are part of a long term experiment in order to see if they make a difference. So ignore them until I have valid test results.

[lovejoy]

Thanks Stan, shouldn't take to long to mod then. I'll provide some feedback when I've had chance for a good listen.

Might just have to order some OPA2107s to try at the same time - Thanks for that Derro.