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post #16 of 66
Thanks Gradofan. The Bound for Sound audio reports reviewer liked the JAN Philips in the Pre-section quite a bit too. I'll switch to these once I've got a good fix on how my Sovteks sound.
post #17 of 66
I found the Jan-Phillips to be terribly harsh in the DAC60, the stock Sovteks were superior. I tried Mullard 6922 and they were thin.

The NOS Telsa's were very nice. I did not try any Amperex or Siemens because the price is rediculous.
post #18 of 66
Thread Starter 

I Suppose...

Quote:
Originally Posted by regal View Post
I found the Jan-Phillips to be terribly harsh in the DAC60, the stock Sovteks were superior. I tried Mullard 6922 and they were thin.

The NOS Telsa's were very nice. I did not try any Amperex or Siemens because the price is rediculous.
I suppose it depends on the phones, and rest of the set up. I find the Senns in my set up need the brighter sound of the JAN Phillips tubes.

Though I may try the Sovteks or Teslas... just to see - though I suspect they'll be too bland for me.

I did briefly try the Voskhod 6N1P-EVs and found them to be too bland - returned to the JAN Phillips 6922s for their brighter sound, which may sound harsh to some... especially with brighter phones than the Senns.
post #19 of 66
My NM24 arrived few days ago. The tube-output is amazing even on standard tubes. The soundstage is HUGE. The solid state output is little boring. In my speaker setup the standard tubes are little bit too bright, so which tubes I should choose?

JJ E88CC or Ei 6DJ8?
post #20 of 66
Thread Starter 

Let It Burn In...

Quote:
Originally Posted by rajani View Post
My NM24 arrived few days ago. The tube-output is amazing even on standard tubes. The soundstage is HUGE. The solid state output is little boring. In my speaker setup the standard tubes are little bit too bright, so which tubes I should choose?

JJ E88CC or Ei 6DJ8?
I'd let it burn in and settle... before I made judgments on the tubes. The JAN Philips 6922s are great tubes after burn in - they're sound solidifies and mellows a bit. It will be hard to find better all around tubes at reasonable prices - in the 6922's the next stop is NOS at premium prices.

Though... I'd likely try the Ei's, or the Russian 6H23N-EBs.

After that... I'd try some NOS Amperex or Philips.

I just tried some Philips, and Russian 6N1P's - they were both good in the DAC sockets. I still prefer the stock tubes to both though. But... of course... that's with Senns.
post #21 of 66
The standard tubes (Philips JAN 6DJ8 USA) did sound little bit "too aggressive" to me. I was looking for soft tube kind of sound. The mid range was good, the bass was fast and tight, the sound was not too thin, but just little bit too aggressive (too ROCK, I like softer). So I did order the JJ E88CC tubes and those are little bit softer and little thinner too (mid range).

If you can recommend softer sounding tubes with good midrange. I have also tweeter problem, its too bright, when I play louder.
post #22 of 66
Thread Starter 

Agreed...

I would agree... the JJs do seem to sound a bit less aggressive, and perhaps a bit more "smooth and refined" - than the stock tubes. Probably good with brighter phones - like Grados, or ATHs. Though, I still like the "aggressive" sound of the stock Philips, especially with my Senns, which need more "life."

You might try the NOS Amperex 6DJ8/6922s - will sound warmer, smoother, less brilliant highs - but... they come at a bit of a premium. The Russian 6H23N-EBs, or 6N1P-EBs, may also sound less "aggressive" in the upper mids and highs - while still providing solid bass, and rich mids. Though the 6N1Ps were a bit too "mellow" for me in the highs with my Senns. These both sounded great in my XCAN v3, which has a bit of a bright sound anyway. They might be a good fit in the NM version - which may have a bit brighter sound than the M version of the M24.

You also might try "mixing" the tubes a bit - for example, using Stock tubes in the tube DAC circuit, and the Russian tubes in the Line Stage circuit, and connecting your amp to the Line Stage output. You might find the Russian tubes in the Line Stage would mellow the bright sound of the Philips tubes in the DAC - they seemed to do that in mine. This configuration gives you more gain, but you can "tune" it to your preference (turn down the Lines Stage volume POT, and turn up the amp volume POT, etc.).

In the end... you'll likely have to "experiment" until you "get to your sound."
post #23 of 66
Thread Starter 

A Real Bargain...

The Monarchy M24 / NM24 is another "real bargain!"

For the price of it "world-class" DAC, you also get a "world-class" line stage that can function as a "world-class" headphone amp to drive Senns and other high impedance phones (its not so special with low impedance phones).

As I note elsewhere, the line stage sounds almost as good as my expensive WA6 SE Mxd with my Senns.

If you like Senns, the M24 / NM24 is a way to avoid the cost of a separate headphone amp, without losing any of the sound quality you get with one.

http://www.head-fi.org/forums/f5/rev...-units-375885/

And... rolling in some Amperex Orange Globe 6DJ8s does give it a warmer, richer, more dynamic sound.
post #24 of 66
I had S2 Audio build me an RCA to 1/4" Jack to use the NM24 Line stage out as a headphone amp. The highest impedence can I own is 120 ohms, but all of them sound good out of the NM24, not my Singlepower but dawg on good. Note, I am using the stock tubes.
post #25 of 66
Quote:
Originally Posted by Gradofan2 View Post

As I note elsewhere, the line stage sounds almost as good as my expensive WA6 SE Mxd with my Senns.

If you like Senns, the M24 / NM24 is a way to avoid the cost of a separate headphone amp, without losing any of the sound quality you get with one.
What tubes do you have in the DAC and the Linestage?
post #26 of 66
Stock the NM24 uses a total of four NOS JAN 6922 tubes, two for the tube dac and two for the line stage.
post #27 of 66
Thread Starter 

Yes...

Yes... the stock JAN Philips 6922s sound pretty good - especially with Senns.

I also like the Amperex 6DJ8/6922s in it - similar to the stock tubes, but with a richer warmer sound.

Lot's of options - but, some are pretty expensive.
post #28 of 66
Well I have the NM24 and I find the stock JAN Phillips a tad too bright even for the Senns. The NM24 is probably a brighter DAC than the M24.

I have to JJ Teslas on the way this week so we will see what happens.
post #29 of 66
Thread Starter 

Oh yes...

Oh yes...

... and... as I've noted so many times elsewhere...

... I continue to be astounded at the quality of the sound produced from the M24/NM24 Line Stage with the "new" version of the HD580/600/650s (no separate amp required) - virtually as good as any heaphone amp available, including my WA6 SE Maxed.

Quite literally!

Though... I should note... only with high impedance phones - the Senns specifically. The Line Stage doesn't output enough current, or have a low enough impedance to drive low impedance phones well.
post #30 of 66
Yep, that did the trick. The NM24 becomes extremely smooth with the JJ Teslas in the DAC section.
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