Ok, many people reading this will probably think that i'm either lying (see attached pic though) or deaf but here goes:
Upon receiving my DV 337 I imagined using it with my HE-500 and especially the Senn HD-800. I also own a HifiMan HE-6 but never, ever imagined that I'd be able to power it correctly on the 337. Of course, out of curiosity I did give it a try and almost fell off my chair upon hearing that it actually performs well!
Setup: Macbook Pro-- USB to Violectric V800 DAC, output volume at 90%---Atratus RCA interconnects--DV 337 powered by TungSol 5998 and RCA 6504 (metal, red) tubes---Toxic cable--HE-6.
I normally listen to classical at low-normal volume, using my V-200 amp with the HE-6 the volume dials are usually at 9-10 'o clock, with the 337 I'm currently listening to Schubert with the volume dials at 12. That's plenty loud for me, bass is full (put on an organ concerto to check), the highs are not clipped or distorted, nothing like that, just a clean tube sound and to my ears a good pairing even though the impedance of the 6 is only 50 Ohms.
Frankly, I don't understand how this is possible. OK, it's a dual mono design but powering one of the most inefficient headphones on the market??? I wonder what the output is, DV are a bit cagey about this but going from what I hear it can't be less than 1 W/channel into 50 Ohms. The HE-6 documentation specifies a minimum requirement of 2W for an amp and my comparison point (the V200) delivers 2.75W.
If anyone has some sort of explanation for this then by all means, share.
I told u when i sold it to u..this particular 337 is modified by the first owner...thats why he is probably so good... No one believed me that this 337(nick name 'the evil one') would be this good as ur also expressing now..i knew this already..am glad u experience it also now urself..u dont need to excuse urself for that..i know myself almost no one believed me when i said ur amp is something special..but i have to be honest..never thoight it would be able to drive the he6... Damn..why did i sell my 337..
Am glad its exceeds all ur expectations...and i hope others will see that the 337 can be something special...did u try other pairs of tubes? I can promise u that if u find the tungsol sj7gt mesh plates (drivers) in combo with the tung sols 5998 or bendix 6080 WB with slotted graphite plates u will be in for a big surprise!
Enjoy ur amp my friend..am glad u like it just s much as i did...
tip..dont mention it on other threads as somehow no one will believe u as its not shiit or emotiva branded..
As i said this amp react well on powercables..did u find a set already through ur friend at sennheiser?
Ps..i am guessing u mean RCA 5693 red hots instead of rca 6504? Or is this a model i didnt know about..did u compare it to the red hots if they are different?
And good choice choosing a toxic cable
Ps..if all goes well there will be a benelux headfi meeting this year..would love to see u there, shake ur hand and try ur he6 on my new amp (will be delivered in febr) and would love to see 'the evil one' again
Edited by hifimanrookie - 1/26/14 at 9:48am