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Old 24th January 2013, 03:38 PM   #1
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Default What amp for Pensil 10.2?

I've a digital amp, a 6CA7 SE, and a 6V6 SE. I found the least-power 6V6 SE sound best on my setup. Just want to know what amp is used by other users.
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Old 24th January 2013, 04:24 PM   #2
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I only use Herron M150 amps with the latest mods. I just haven't heard anything better. Or even as good, frankly. Fabulous dynamic snap and detail. Very flat response, no coloration. Vanishingly low distortion.

That said, I'm not using Mark Audio drivers yet. Still in the planning stages. But good amps are good amps.
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Old 24th January 2013, 05:10 PM   #3
chrisb is offline chrisb  Canada
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Quote:
Originally Posted by silverhairbp View Post
I only use Herron M150 amps with the latest mods. I just haven't heard anything better. Or even as good, frankly. Fabulous dynamic snap and detail. Very flat response, no coloration. Vanishingly low distortion.

That said, I'm not using Mark Audio drivers yet. Still in the planning stages. But good amps are good amps.

indeed, but never underestimate or discount the synergy (or antagonism) that can occur between components - for example ask Jim Shearer about his experience with F120A

re the 10.2 - I've heard them blossom with a 2A3, which on paper might not be sufficient power for theatrical dynamics and realistic concert level SPLs

I don't currently live with a pair (10.2s) , but my choice in a small room would be something like the 6CA7 SE - as it turns out, one of the members of my "harem"
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Last edited by chrisb; 24th January 2013 at 05:14 PM.
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Old 24th January 2013, 07:23 PM   #4
TiMBoZ is offline TiMBoZ  Australia
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I like the sound of that...How do I get a "harem"
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Old 24th January 2013, 09:03 PM   #5
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Originally Posted by chrisb View Post
indeed, but never underestimate or discount the synergy (or antagonism) that can occur between components - for example ask Jim Shearer about his experience with F120A

Chris,

It's been my experience that problems upstream cannot be fixed downstream. Amp shortcomings may be masked by other weaknesses in the chain, but they don't disappear.

"Warmth" in amps sometimes creates a sweeter, more romantic presentation, but it doesn't take away from the fact that it is a distortion.

BTW, I've heard some low power SET amps perform as if they had a LOT more power. Not sure why, but the dynamics were certainly eye-opening.
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Old 29th January 2013, 03:07 PM   #6
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Originally Posted by silverhairbp View Post
BTW, I've heard some low power SET amps perform as if they had a LOT more power. Not sure why, but the dynamics were certainly eye-opening.
Bruce Rozenblit in his "Tubes and Circuits" book posits that the reason tubes seem to have more power is that the semiconductor materials used as cathodes in tubes are able to handle brief 1-2ms transients at more than 1000x the steady state power handling. This works well for music, since typical higher power notes are short.
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Old 29th January 2013, 05:03 PM   #7
chrisb is offline chrisb  Canada
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let's not let this devolve into another of those SS / vs HollowState debates - each type has its own merits -there is no "best" or "one amp for all"

although I must say that the most transparent, lyrical, dynamic, musical devices I've yet heard was a hybrid design by Rene Jaeger - 45 DHT driving some type of SE FET output stage - it's very easy to get lost in the music and not really hear the technical description of the design (of course it'd still be geek to me)

"harem" - I'm was in the middle of reading "Enchantress of Florence" (Salman Rushdie) when I typed that - forum decorum precludes elaboration
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Old 27th February 2013, 04:18 PM   #8
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Thumbs up Hi - here are someone wise....

Hi to all!

Look at this site - seems like they are using Alp10.2 and in a no-wood cabinet. Still it is favorably compared to Sonus Faber Cremona Auditors and Proac Tablette Ref8, and it even plays better than those 2 in some aspects.
CA-Electronics Sound Quality | CA Electronics AP-10 bookshelf speaker
CA-Electronics AP10 Loudspeakers | Hifi Pig

So our wood-boxes with Alp10.2 should give even a more harmonius sound -maybe.
And my new Alp12P - is even more tonally rich in a somewhat equal box!

So - Mark - your way of producing these fine sound-pieces is really giving us diyr a perfect opportunity!

Thanks and Best to all!

Olav
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Old 27th February 2013, 11:40 PM   #9
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Hi Guys,
Thanks again for messages of support and encouragement. When it comes to amps, I a bit of a swopa-holic. I've ran Pensil 10's on the following amps with pleasing results:

For absolute precision: http://www.accuphase.com/cat/e-308_e.pdf

For warmth (I have 2 of these 300B's, one with vintage C type Mr Zhu trans, the other with Kenneth's trans - both yummy: Tony's 300B (standard model)

For slam and presence (go easy on the vol): SANSUI ƒvƒŠƒƒCƒ“ƒAƒ“ƒvAU-ƒ907DR‚Žd—l ƒTƒ“ƒXƒC

For smooooooothness: SONY ƒvƒŠƒƒCƒ“ƒAƒ“ƒvTA-F333ESX‚Žd—l ƒ\ƒj[

There's a few more combo's but they're in the studio, will need to visit later next week as I'm working from home while recovering. I'm also using DIY-Hi-Fi Supplies Django coupled to the later 300B with much pleasure

One thing that I believe is most important: source. I use an Accuphase DP67 CD player as my reference source. I'm also very picky re CD's.

Overall, I tend to learn towards Tony's 300B's and other tubies. However, all my Mofs are "all Japan" models, tweaked, running on clean voltage (100v to 220v) converters so they aint your average product. I'm in no rush to give these solids away!

Hope this helps,

Thanks
Mark.

Last edited by markaudio; 27th February 2013 at 11:44 PM.
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Old 28th February 2013, 02:05 PM   #10
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I have just ordered a DIY Pass Alpeh Mini to work with my Opera T1 pre-amp (modified). What do you think?
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