Mod your Beresford 7520

[StanleyB]

Again, about those discrete opamps. Do you have anything to do with it or is it just a Beresford NA project?

I can only speak about what you see advertised on my site at beresford.me or homehifi.co.uk. Anything else you see on sale on any other site that is not on my site has nothing to do with me.

Stan

[lingling1337]

OK, thanks for clearing that up.

[leo]

Most discrete op-amps I've seen have much worse linearity than most IC based types especially if ran at the sort of low voltages found in majority of dacs

People see the word discrete and presume its got to mean better

[lingling1337]

Most discrete op-amps I've seen have much worse linearity than most IC based types especially if ran at the sort of low voltages found in majority of dacs

People see the word discrete and presume its got to mean better

Care to explain any further?

[Gazjam]

Looking good Stan, quite understated I like It.

I have a Cayman already, just need to get a Wolfson Dac chip soldered in there!
Shame this is an impossibility for someone like me with no electronics or soldering experience!

Will the Cayman have 4562's in the line out stan?
If you want that not to Be common knowledge I'd understand.

Just working out how far my 7520 with 4562 and Mc5/6 mod if far removed from the Cayman!

[leo]

Care to explain any further?

Discretes are only good imo if they are designed specifically for the circuit they are used in and not something suitable to be used in a range of other circuits.
Trying to make a discrete device like a standard op-amp IC containing dozens of transistors is not easy, track,layout,components used (normally through hole) add compromises

[StanleyB]

Just working out how far my 7520 with 4562 and Mc5/6 mod if far removed from the Cayman!

Not by much. Except for the 192KHz 64X oversampling WM8716 and the Caiman logo you are about there already.

I was hoping to have a Caiman branded power supply ready as well, but that's going to take at least another two months to complete, funds permitting. I hope to offer it as a free part exchange to any Caiman DAC buyer as long as people pay the postage and send me back the standard TC-7520 PSU that I have to use until the Caiman branded version is ready. I reckon it might be nice to have both DAC and PSU with the same model name.

Stan

[NRG]

You're kind of a prick. You haven't read the emails between Stan and myself. What I was saying was, we certainly have our differences but he does a decent job of reaching out to his target audience, for better or for worse.



I actually would love to try these mods that you and others have detailed here on these forums. I'm one for squeezing every last drop of performance out of my gear.

So, on a subject that you so artfully dodged in my emails, what do you know of discrete opamps? Or is that something that Jeff is working on solo (or with the rest of the Beresford NA crew, if there is one)?

Oooh! class. 11 posts on the forum and you lead in with a kick in the balls!... Stunning...well constructed post you're a real piece of work.

[leo]

Oooh! class. 11 posts on the forum and you lead in with a kick in the balls!... Stunning...well constructed post you're a real piece of work.

Thats a few of us already who's had a kick in the balls

[NRG]

Ah! yes Leo...I can take it from you, Stan, Marco etc but not from a noddy...