Mod your Beresford 7520

[Maximum]

Just to confirm...

http://uk.rs-online.com/web/search/s...5228130#header

These are the correct ones? Thought I'd ask to be cautious.

[leo]

Yep, I think these last two pages can be moved, if I can work out how don't want to clog up Stans thread anymore

[sponge]

Just to confirm...

http://uk.rs-online.com/web/search/s...5228130#header

These are the correct ones? Thought I'd ask to be cautious.

Yep, that's the one.

Ken

[trailer]

Yep, that's the one.

Ken

I'm not sure how they would sound in a standard 7520?

[leo]

I'm not sure how they would sound in a standard 7520?

If AD826 is stable and behaves in this dac it should be rather good, this is one of my favourite op-amps which I've used in a lot of CDP's I've modded.
Its a nice chip as long as it behaves in the circuit its used in, good at driving a wide range of loads so should be suited to driving cans

[trailer]

If AD826 is stable and behaves in this dac it should be rather good, this is one of my favourite op-amps which I've used in a lot of CDP's I've modded.
Its a nice chip as long as it behaves in the circuit its used in, good at driving a wide range of loads so should be suited to driving cans

I was meaning soundwise Leo.

I think most folk seem to prefer something like the 4032 in the 7520 as it brings out the music more.
I found something like the 4032 in the Wolfsoned 7520 too harsh, whereas the AD826 tamed this down and struck the right balance. Just wondering if the AD826 would be "too smooth" in the standard 7520?

[leo]

I was meaning soundwise Leo.

I think most folk seem to prefer something like the 4032 in the 7520 as it brings out the music more.
I found something like the 4032 in the Wolfsoned 7520 too harsh, whereas the AD826 tamed this down and struck the right balance. Just wondering if the AD826 would be "too smooth" in the standard 7520?

I see

[sponge]

I'm not sure how they would sound in a standard 7520?

I did try the AD826 before I swapped the DAC chip, but only for a short time. It certainly works better with the WM8716, but I think I would have kept the 826 even with the PCM1716, especially with K701 cans. However, the sound could be just a little too laid back with headphones like the Senn HD600's - Or a speaker setup that is already on the "warm" side.

Ken

[Derro]

Ok, about time I add my further thoughts on this DAC after my last post (#140).

After installing the THS4032 op amp, this improved and opened up the overall sound and well, there was just more of everything. A very definite and worthwhile upgrade. Perhaps a little analytical however, just a little, somewhat hi-fi sounding.

I have now since installed the Burr Brown OPA2107 op amp and have to say that this, THIS, ..... is what I have been looking for. More body in the bass and upper mids and a super smooth top end that does not encourage harshness or unwanted sibilance. In vacuum tube terms - its lake a RCA 5692 versus any other 6sn7 gt tube! I am using this with 300B SE vacuum tube amps, hence the analogy .... The BB OPA2107 is like the OPA627, so it has been said, though at a lesser cost.

I also use the Apogee DUET, but the Beresford 7520 with OPA2107 now is my prefered choice. The DUET is not capable of driving the Sennheiser HD650, though, you will read comments that it does drive them,, blet me say that it does not... you may think it does until you hear the HD650 driven properly. The Beresford is absolutely capable of driving the HD650.

Just my thoughts and to mention that great chip - the OPA2107 that is another that you may want to play about with!!!!

DerrO

[Dougr33]

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