Mod your Beresford 7520

Just about to buy a AD826 for my tc-7520, can anyone confirm that this is the right one

http://radionics.rs-online.com/web/s...duct&R=5228130

OR THIS

http://ie.farnell.com/analog-devices...826/dp/1438583

Also , i can just drop this in without having to change anything else , its just a simple swap replacement for whatever opamp is in there ?

Thanks

Quote:

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Originally Posted by drumlins4ever

Just about to buy a AD826 for my tc-7520, can anyone confirm that this is the right one

http://radionics.rs-online.com/web/s...duct&R=5228130

OR THIS

http://ie.farnell.com/analog-devices...826/dp/1438583

Also , i can just drop this in without having to change anything else , its just a simple swap replacement for whatever opamp is in there ?

Thanks

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That is it....just pull out the old one and in with the new. Make sure pin 1 is located correctly when you reinstall it. Pin one is the little black circle on each chip, DO NOT go by the orientation of the "lettering" on the chip!

thanks for that , looking forward to trying this opamp shortly

The 826 is my favorite thus far.

Have an lm4562HA at the office that just arrived. Can't wait to try that out.

Quote:

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Originally Posted by fmzip

The 826 is my favorite thus far.

Have an lm4562HA at the office that just arrived. Can't wait to try that out.

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They are both excellent op-amps and you will settle on one based on its sound in your system. I would be happy with either but slightly prefer the LM4562 in my system.

I've tried the LM 826, but still far preferred the OPA2132PA.

Much better still is removing the board and fitting 47uF capacitors into the PIN3B connector - as per post 117 in the passive Caiman thread

Andrew

Quote:

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Originally Posted by AndrewR

I've tried the LM 826, but still far preferred the OPA2132PA.

Much better still is removing the board and fitting 47uF capacitors into the PIN3B connector - as per post 117 in the passive Caiman thread

Andrew

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Interesting, never read that thread. Although I use the variable out to my preamp and the headphone out, this mod won't work for my setup unless I were to use my ext in on the preamp. Unfortunately, I have only one ext in which is for my SACD player.

Quote:

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Originally Posted by fmzip

Interesting, never read that thread. Although I use the variable out to my preamp and the headphone out, this mod won't work for my setup unless I were to use my ext in on the preamp. Unfortunately, I have only one ext in which is for my SACD player.

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I've not yet tested it, but applying the mod this way might mean the DAC still has a variable output - albeit a passive pre-amp.

Best regards,

Andrew

Can someone tell me the 1/2w resistor value in the location directly behind RCA1 please.

May have found why I lost a channel FINALLY! ANY help would be greatly appreciated!

The AD826 makes nothing but music in my system , think i prefer it over the OPA2132 would be very interested in trying a LMH6655 , Anyone else tried one?