• Please note that Audiokarma will be offline briefly for updates early on Monday morning, September 28th.

CNC Phono pre-amp, Opamp rollng and Bugle comparo-->

Live dangerously- Mix and match, fellas! :thmbsp:
New recruitment catchphrase for this site " Join AudioKarma- Live dangerously- Mix and match, fellas!" Hmm actually sounds a bit different than I thought....could be an alternative to joining the Navy even...:scratch2:
 
Live dangerously- Mix and match, fellas!
is quite different than;
Live dangerously. Mix and match fellas!
LOL,
I live near San Francisco...........
 
Last edited:
Hynotoad..opamps in my AK PRE III

Hello, just curious, which opamps did you use on my board ? Wondering if I should swap to ones less edgy in the top end. Sorry to say but the AT SUT to ART DJ PRE beats it hands down...both in top end clarity and wider soundstage. Its not a slam, just a statement.

You had mentioned top end roll-off on the ART but that is not what I am experiencing. In a solid listening test, same material, head to head, both are playing those ultra highs where you are listening and waiting to see - does that note hit it or crack (sort of like wondering if a singer can HIT that high note). The Art hits it CLEAN, the AK-PRE folds and gives a sound bordering on painful...

In terms of soundstage, I am not getting the same width or depth from the AK-PRE

I know you tested in your setup but again, we have different configs, most especially the moving coil cart. The cart I use could get edgy if allowed to run away...lol

So I am wondering if rolling an op amp might help? I do like the AK PRE, but I do think it needs a tweak to be just right on my setup. Thanks

Please dont take this as a criticism by the way. It just is what it is, objectively measured.
 
I put a pair of 2134s in my B&K MC-101 at the suggestion of Catman and I have to say they were delicious.

They made the already very good sounding MC phono stage really lush but detailed.

I don't have much opamp rolling experience but I can say that I sorely miss the MC-101 for it's really great phono stage.

Eric
 
Switching output capacitors

Hi vinyl lovers,

I need a bit of an expert help.

I am building a CNC phono stage and then would like one like this for MC cartridges going into the same enclosure.

I would switch between the two with a switch powering either of them.

Since both would use high quality (big size, not cheap) output caps, I'm just wandering if I could just share the same caps by switching them between the two. Can we put a switch into the signal path without effecting SQ?

What would be the best way to do this if any? With a 4PDT switch or a relay?
Could I use the same switch that switches power between the two preamps?

I need advise from you who might have done it already.

Thanks,
Bela
 
Back
Top Bottom