Mod your Beresford 7520

[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

[fmzip]

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

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!

[drumlins4ever]

thanks for that , looking forward to trying this opamp shortly

[fmzip]

The 826 is my favorite thus far.

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

[MartinT]

The 826 is my favorite thus far.

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

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.

[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

[fmzip]

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

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.

[AndrewR]

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.

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

[fmzip]

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!

[drumlins4ever]

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?