The discrete TC-7520(SE)(+) line output

[Maximum]

Still haven't done any mods to my 7520 besides opamp and MLC5/6 removal, but intend on sending it to Tirna for the dac/reg/cap mods and getting a 15V PSU at some point. I use headphones a lot so this seems like a good move, and if I get stuck Tirna can change it for me.

You can add me to the list too please.

[Gazjam]

I refer my learned friend to the opening line of this thread, "I drew up a discrete output stage for the TC-7520 and Caiman to hear how it would sound. Leo built a prototype of it on stripboard and I did one as a 'proper' PCB. I wanted to find a solution for the low output of the passive mod and preserve the headphone output capability, but didn't want to go overboard with a complex discrete opamp type design. "

In other words, if you are happy with the passive mod and it's output level, and don't need the headphone output, then you don't need this upgrade.
As for caps and opamps for this PCB: feel free to improve on my choice.

Thanks for that Stan, clears that one up perfectly!
I'm not a headphone user, so will follow your advice and stick with the passive mod I've currently got.

Seems a great option for headphone users though...

[Jason P]

I'd be interested in this too Stan, having just done the Passive mod and being an occasional headphone user!!

Jason

[leo]

I tried some other caps today and noticed a difference in tone, got to try and find some grey Rubycons now

[quadsugdenman]

I'll probably offer a fitting service for those who are worried about swapping the PCB by themselves.

I think thats the one for me Stan , put me down for that when you are ready.

Best Regards
Garry

[StanleyB]

OK, the PCB factory and me have come to an agreement on the price of 100 pieces. So I have given the OK for it to be manufactured. ETA is October .

[Peter Galbavy]

Hmm. Not sure I need the extra gain TBH, but it might be useful for some of the older and quieter (really quiet, not high dynamic range recordings) CDs when connecting direct to the poweramp.

[StanleyB]

Let's just say that I have very much undersold the performance of the discrete PCB .

[Frizzup]

So Stan

With you ordering 100 PCB's how do you propose we place our order with you

Is it first come first serve through AOS ?, or your website ?

Just wanting to make sure I get my hands on one
Frizzup

[StanleyB]

I shall run down the thread from #1 and everyone who has shown an interest will be sent a PM with a link on it that is tied to the AoS website. So if you can't receive PM and are not a member of AoS you won't be able to access the AoS related page on my site . Copying and emailing the link to a friend won't work . That way I can give AoS members priority.

By the way , the product name for the discrete PCB is Gator...