Massive fan of your work Dave, lucky to have you here. Sounds like I might need more than 4 sockets when I order them. I will make a note of that. Thanks :)

Dave can you try the Sparkos on one side of the P20, OPA 1622 on the other I wonder?

Going on the markup of gear I would expect a sparkos op-amped P20 to compete with pretty much anything...

Summed up well however I believe we are in uncharted waters here except for Dave... no word from anyone else op-amp rolling. Man you can spend crazy money on them, holy cow $100 plus US! At $6-$7 US the OPA 1622 is as good a place to start as anywhere, esp with Dave's recommendation, he's been...

How did you find the culprit?

Dave would you mind elaborating on what the "flaking out" event was and what caused it? I must say that comment curbed my desire to put the sockets in..... not entirely but helped expose my limitations. :)

I don't recall anyone saying swapping the op-amps was necessary... valves certainly.

Impressive...and you can opamp roll! What does it sound like I wonder?

No I haven't but after reading it seems the search is not over. Albeit not a mention of the sound. I'm pretty keen to do what you have re opamp rolling but will get a tech to do the opamp sockets. I do wonder what the weakest link in the P20 will be? My sound recordist buddy has a tape Nagra...

I have it lying around, home recording studio.... and the P20 sounds great! I prefer it to the ULN8's HP out. Looking forward to listening to a Violectric 281. If it does sound better than the P20(with opamp rolling capability, and perhaps another ps upgrade) but a subtle improvement, which...

Ok, well I just swapped the valves left to right for you and can't hear the difference. I am happy with that. My system as you can see is balanced from Metric Halo conversion, Periapt cable to HD650 and the weakest link is prob my hearing. Meanwell 6.6 amp ps kicks it in the guts and the sound...

The Russian site, tubes-store.com are professional and comprehensive. Can highly recommend them. The reflector 6N3P-DR valves are superb in the P20 and as stated elsewhere shine above all other options. Oh and at $6.00 each a dead set bargain :)

Yes there is a technical discussion going on here and the importance of being fully balanced does not seem to be understood. The P20 is fully balanced and is the reason many of us are here. I love the fact I can run a cpl mic leads from my DAC and shift the P20 to where I want it. To over the...

Dude I'm not sure why you keep telling Dave to buy a SP200 "cause that hot rodded P20 of his would smoke it for sure... and I'm as jealous as #*@% :)

Hey some great opinions there but I need one to answer my question... how much? I should add valve or otherwise. Cheers

But is it? First HP amp I've ever used. Adding Meanwell 6amp ps and 6N4P-DR valves and the price of it has nearly doubled. Sure, with the HD 6XX, Periapt cable combo it does sound beautiful. My question is: Assuming high end conversion and balanced XLR going in, what sort of $US needs to be...

My 5ft Periapt HD6XX XLR balanced cable arrived and I'm thinking how could I have spent $140 AUS on a HP cable but I'm glad I did. Might nearly be as noticeable an improvement as stock valves to Reflector 6N3P-DR. The P20 keeps on giving and I'm a very happy owner having spent all day listening...

My Reflector 6N3P-DR valves arrived from Russia cpl days ago and without burning in there is still a marked improvement. The meanwell ps is now also a noticeable improvement over the stock ps with the new valves exposing what the stock valves could not. There is also an increase in volume...

You tell 'em Warbles, I reckon there's a freebee in it for ya!

What, that MJ questioned why the mix wasn't sounding as good as yesterday and it was because they weren't using the SSL....

Ebay I guess........

It sounds great. However if you feed it the hp out from a phone or listen on trashy $10 hp then not so good. With HD6XX it is gorgeous, but they are over twice the price of the amp! Op amp rolling is for the geek in us but def not essential. I did read on the gearslutz forum where the op amps...

So I have now had the P20 for 11 days and HD6xx cans for 4 days. Added a meanwell ps (improvement subtle at best...further listening perhaps required) and awaiting a Periapt balanced cable to arrive and a pair each of GE 5570, 6N3p-DR and 6N3P-E valves. Spotify listening mostly, some vinyl/ reel...

But what about the sound........... Has anyone done it ? Would love to know. What could a Head Fier expect? I mean, are we talking giant killer here?

Man alive, so that means $312.00 US to roll in Sparkos!!! (ebay $78 from Sparko)