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  #11  
Old 08-16-2014, 05:51 PM
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Quote:
Originally Posted by Bavarian05 View Post
So far, I feel the 8 ohm tap sounds best with the EVOs.
They are rated 4 ohm, though they really don't fall beneath 4 ohms much and supposedly stay around 5 ohms for much of the frequency range.
4 ohm tap sounds more forceful, but not as enjoyable overall and the top end seems to get a little darker overall.
Jason.......As you can see from the impedance and phase measurements from the Stereophile magazine review of the Guarneri Evolution, the speaker never dips below 4 ohms. In fact the speaker only touches 4 ohms at 4500 Hz. The majority of the frequency range sees the impedance well above 8 ohms. This may be why you are preferring the 8 ohm taps on the PrimaLuna Dialogue HD. None the less, after you have a couple hundred hours on the Evo's and the amp you may want to revisit the 4 ohm taps just to see what you think.



Fig.1 Sonus Faber Guarneri Evolution, electrical impedance (solid) and phase (dashed). (2 ohms/vertical div.)
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Last edited by jdandy; 08-16-2014 at 06:03 PM.
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  #12  
Old 08-16-2014, 05:54 PM
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Hi Bavarian- have you stepped away from ARC? Noticed the new Primaluna integrated. Dialogue 2 was first tubed gear I owned. Enjoy the music!
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  #13  
Old 08-17-2014, 08:18 PM
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Quote:
Originally Posted by jdandy View Post
Jason.......As you can see from the impedance and phase measurements from the Stereophile magazine review of the Guarneri Evolution, the speaker never dips below 4 ohms. In fact the speaker only touches 4 ohms at 4500 Hz. The majority of the frequency range sees the impedance well above 8 ohms. This may be why you are preferring the 8 ohm taps on the PrimaLuna Dialogue HD. None the less, after you have a couple hundred hours on the Evo's and the amp you may want to revisit the 4 ohm taps just to see what you think. Fig.1 Sonus Faber Guarneri Evolution, electrical impedance (solid) and phase (dashed). (2 ohms/vertical div.)
Thank you Dan!
Very helpful. I appreciate this. ;-)
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  #14  
Old 08-17-2014, 09:15 PM
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Originally Posted by Bavarian05 View Post
Also picked up a Rega Brio-R to use for background listening to avoid burning through tubes...
I have been reading that PrimaLuna runs their tubes at a much lower level of their max capacity so the tube life is significantly higher than with other brands.

I do like the AutoBias circuitry.
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  #15  
Old 08-18-2014, 09:57 PM
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Jason.......How's the break-in coming along with the new PrimaLuna Dialogue HP?
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STUDIO - McIntosh C1000C/P, MC2301 (2), MR88, Aurender N10, Esoteric K-01X, Shunyata Sigma spdif digital cable, Sonos Connect, PurePower 2000, Stillpoints, Furutech Flux 50, Michell Gyro SE, Michell HR Power Supply, SME 309, Ortofon Cadenza Black, Wireworld, Sonus faber Amati Anniversario
LIVING ROOM - McIntosh C2300, MC75 (2), MR85, Magnum Dynalab 205, Simaudio MOON Neo 260D-T, Schiit Audio Yggdrasil, Aurender N100H, Shunyata Sigma USB cable, Micro Seiki DD40, Ortofon Cadenza Blue, Nakamichi BX-300, Sony 60ES DAT, PS Audio P10, Furutech Flux 50, Sonos Connect, Stillpoints, Wireworld, Kimber, PMC EB1i, JL Audio f113
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  #16  
Old 08-18-2014, 10:45 PM
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Sexy. Enjoy the warmth.
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  #17  
Old 08-18-2014, 10:49 PM
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Originally Posted by jdandy View Post
Jason.......How's the break-in coming along with the new PrimaLuna Dialogue HP?
Hi Dan,

It has maybe 22-25 hours of play time on it so far. Honestly, I spent quite a bit of time today playing with speaker position, so what I hear right now might not be too accurate as it relates to burn in of the amplifier and more likely due to speaker position changes. I will post an update in a day or two once everything has settled a bit.
I try to play it most of the day if I am going to be around and then also cycle it off for a bit every few hours for maybe a 45 minute break in between. Might be difficult to give everybody an honest accurate assessment as the speakers are breaking in at the same time...?
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  #18  
Old 08-19-2014, 10:06 PM
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I've heard that the PL amps are cool running...any comparison how much heat it generates vs the REF110?
Paul
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  #19  
Old 08-20-2014, 08:05 PM
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I've heard that the PL amps are cool running...any comparison how much heat it generates vs the REF110? Paul
Both are plenty hot. Not really a temperature difference as far as I can tell.
The PL's are run at a lower bias voltage to ensure longer tube life, but it still has 14 tubes in it, so lots of heat.
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  #20  
Old 08-20-2014, 09:43 PM
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Thanks. Looking forward to hearing about how it sounds after break-in. Keep us posted.
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