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| Headphone Amps (full-size) Discussion of desktop headphone amps. |
04-22-2007, 08:03 PM
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Headphoneus Supremus
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Join Date: Nov 2005
Location: Atlanta, GA
Posts: 6,759
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Quote:
Originally Posted by M0T0XGUY
When did this come out? I don't remember seeing any threads about a new Darkvoice.
EDIT: Just curious, but does the amp use a stepped attenuator? If not, then how do you keep the left and right sides equal, I imagine you could drive yourself crazy trying to get them to sound the same.
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It's been out a while.
I imagine it would be quite a pain to match volumes if they're using the same kind as the 336 (a linear pot), since they have barely any movement between soft and loud, but with a pair of decent log taper pots (in a pair of 336is running dual mono) I had no trouble keeping the channels matched. Usually it only took me one or two fine adjustments after making any significant volume change.
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04-22-2007, 08:06 PM
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Headphoneus Supremus
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Join Date: Dec 2006
Posts: 2,426
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nice review. this amp's looks and featureset put a lot of american amplifiers to shame, it seems.
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04-23-2007, 07:55 AM
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1000+ Head-Fi'er
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Join Date: Dec 2005
Location: Davis, CA
Posts: 1,129
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Actually I don't think it is truly dual mono, since the output and input seems to have a shared ground. Wouldn't two Darkvoice 336s bridged together be a better (and cheaper?) solution?
__________________
Home: Trends UD-10.1 -> Zapfiltered Zhaolu D2.0 Balanced Out -> Kenwood KA-7100 -> Koss A250/ AKG K340
Speaker: Trends UD-10.1 ->Zapfiltered Zhaolu -> Kenwood KA-7100 -> EPI 100
Portable: iRiver H140 -> iBasso T2 ->Sennheiser PX100/ Altec Lansing iM716 minus pod
Team Vintage
Read my feedback, my playlist, and my review of all my cans.
Check out my system!
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04-23-2007, 08:10 PM
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Headphoneus Supremus
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Join Date: Nov 2005
Location: Atlanta, GA
Posts: 6,759
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Quote:
Originally Posted by SonicDawg
Actually I don't think it is truly dual mono, since the output and input seems to have a shared ground. Wouldn't two Darkvoice 336s bridged together be a better (and cheaper?) solution?
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The 337 uses a 6J8P (6SJ7) pentode instead of a 6N8P (6SN7) triode like the 336, so it's not an apples to apples comparison.
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04-24-2007, 01:05 AM
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500+ Head-Fi'er
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Join Date: Sep 2005
Location: Los Angeles, UCLA
Posts: 569
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I think a dual 336 and 337 would make a really interesting comparison. In this case, the 337 would be cheaper. hehe
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05-16-2007, 08:37 AM
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500+ Head-Fi'er
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Join Date: Sep 2005
Location: Los Angeles, UCLA
Posts: 569
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Just to report back, I finally got the loctal to octal adapters working. The 7C7 tubes I bought (RCA, Tung-sol) both sound amazing, better than any 6SJ7 variant I've heard.
For those using 6SN7s for Darkvoice 336s, I would highly recommend trying some 7N7 loctals. If you need adapters, feel free to PM me.
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09-28-2007, 02:35 PM
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Headphoneus Supremus:
Reviewerus Prolificus
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Join Date: Apr 2005
Location: Chicagoland
Posts: 11,428
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Based on my very early experience, I certainly agree with Mazuki's review. The Darkvoice 337 has impressed me a LOT so far. It's both powerful and yet detailed, and capable of great beauty and delicacy, while still being very dynamic, and having truly outstanding bass performance. I didn't use the stock tubes at all, put in JAN/RCA 6AS7G's for the power tubes and JAN/Phillips 6SJ7's for the preamp tubes. While the 6SJ7's needed a few hours to stop buzzing, they did, and with this tube complement the 337 sounds terrific. I'm HIGHLY impressed so far. More later.
__________________
PLEASE NOTE: Due to the volume of PM's I have been receiving in connection with my reviews, I no longer have the time to answer PM's from people with zero posts. Please read head-fi first before asking questions.
Team GO-U-NORTHWESTERN
Pics: Main Home Rig; Bedside Rig; Office Rig; Portable Rig;
Headphones: JVC HP-DX1000, HA-RX900; Headphile Deep Cup Darth Beyers VXD3,VXD4; Beyerdynamic DT990/600 (Manufaktur) DT770/600 (Manufaktur), DT880/600 Balanced (Manufaktur); HiFi-Man HE-2 Planar Magnetic; Sennheiser PXC-350; Shure SRH840
Home amps: Ray Samuels Audio Stealth (Mullard ECC32/CV4003); Decware Zen CSP-2 (Amperex BB 6DJ8/Sophia Princess 274B); Darkvoice 337 (GEC 6AS7G's/Tung-Sol mesh plate 6SJ7GTs); Wheatfield Audio HA-2 (Mullard ECC32/GEC 6AS7G/GEC U52); Ming-Da MC84-C 07 (Mullard CV4004/EL84/EM87); Audiotailor Jade (GEC 6AS7G/Sylvania 5751); J. Sound Lab Headphone (Mullard 12AT7); Audio-GD Phoenix; Musical Paradise MP-301 (Ken-Rad 6V6GT/Mullard 6AU6)
Portable Amps: Ray Samuels Audio P-51 Mustang; Decware ZenHead; Qables iQube
Sources: Denon DP59L table + Clearaudio Maestro Wood / VPI Scoutmaster + Benz Micro Wood L2 > Audio Electronics PH-1 DJH Phono Preamp; Music Hall 25.2 DAC; Denon DVD-5900;Red Wine Audio iMod iPod (Apple Lossless) & ALO VCap dock; Sony SCD-555ES SACD player
Loudspeaker system: Krell KAV250 Preamp>Sunfire Signature II Power amp > B&W Nautilus 800 Signatures + Velodyne FSR-1500/Martin Logan Descent
Tube testers: B&K Dyna-quick 650 & Dyna-Jet 606
Head-fi feedback
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09-29-2007, 07:34 PM
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500+ Head-Fi'er
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Join Date: Sep 2005
Location: Los Angeles, UCLA
Posts: 569
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It's great having another 337 owner on board! This one has definitely been a sleeper.
Let me know what you think of those loctal tubes.
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09-30-2007, 12:50 AM
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Headphoneus Supremus:
Reviewerus Prolificus
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Join Date: Apr 2005
Location: Chicagoland
Posts: 11,428
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I will for sure, looking forward to trying them.
In the meantime, I spent a good amount of time listening to the 337 today while watching football. It sounds WONDERFUL. It's not as impressive cosmetically as I thought it was going to be, but I don't care - it sounds TERRIFIC. So very engaging sounding. It's not overly romantic at all - has a wonderfully clear midrange, just a touch lush of neutral, but it's not a super-tubey sounding tube amp. And it has amazing bass power for a tube amp, and a refine, clean, extended treble. And the best soundstage of any amp I have ever owned, except maybe the Blue Circle SBH.
In short - the 337 is a terrific amp, and a tremendous bargain.
__________________
PLEASE NOTE: Due to the volume of PM's I have been receiving in connection with my reviews, I no longer have the time to answer PM's from people with zero posts. Please read head-fi first before asking questions.
Team GO-U-NORTHWESTERN
Pics: Main Home Rig; Bedside Rig; Office Rig; Portable Rig;
Headphones: JVC HP-DX1000, HA-RX900; Headphile Deep Cup Darth Beyers VXD3,VXD4; Beyerdynamic DT990/600 (Manufaktur) DT770/600 (Manufaktur), DT880/600 Balanced (Manufaktur); HiFi-Man HE-2 Planar Magnetic; Sennheiser PXC-350; Shure SRH840
Home amps: Ray Samuels Audio Stealth (Mullard ECC32/CV4003); Decware Zen CSP-2 (Amperex BB 6DJ8/Sophia Princess 274B); Darkvoice 337 (GEC 6AS7G's/Tung-Sol mesh plate 6SJ7GTs); Wheatfield Audio HA-2 (Mullard ECC32/GEC 6AS7G/GEC U52); Ming-Da MC84-C 07 (Mullard CV4004/EL84/EM87); Audiotailor Jade (GEC 6AS7G/Sylvania 5751); J. Sound Lab Headphone (Mullard 12AT7); Audio-GD Phoenix; Musical Paradise MP-301 (Ken-Rad 6V6GT/Mullard 6AU6)
Portable Amps: Ray Samuels Audio P-51 Mustang; Decware ZenHead; Qables iQube
Sources: Denon DP59L table + Clearaudio Maestro Wood / VPI Scoutmaster + Benz Micro Wood L2 > Audio Electronics PH-1 DJH Phono Preamp; Music Hall 25.2 DAC; Denon DVD-5900;Red Wine Audio iMod iPod (Apple Lossless) & ALO VCap dock; Sony SCD-555ES SACD player
Loudspeaker system: Krell KAV250 Preamp>Sunfire Signature II Power amp > B&W Nautilus 800 Signatures + Velodyne FSR-1500/Martin Logan Descent
Tube testers: B&K Dyna-quick 650 & Dyna-Jet 606
Head-fi feedback
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09-30-2007, 06:36 AM
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100+ Head-Fi'er
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Join Date: Jun 2007
Location: melbourne ,australia
Posts: 430
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09-30-2007, 09:24 AM
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500+ Head-Fi'er
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Join Date: Sep 2005
Location: Los Angeles, UCLA
Posts: 569
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Are you planning to get one?
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10-15-2007, 08:58 PM
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500+ Head-Fi'er
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Join Date: Sep 2007
Posts: 532
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Well,
I have ordered a DV337 (curse you, head-fi :-)
I have a friend who makes and designs mic preamps and other gear who is going to look into installing stepped attenuaters for an easier way to channel match the volume.
Obviously we would also be wanting to not degrade SQ and even improve it if possible.
I plan to live with the 337 stock (except tube changes) before trying out the stepped att. idea.
I'll post impressions.
Has anyone else tried this?
My DV is probably 2 weeks away since I am delaying shipment while out of town.
Looking forward to hearing it.
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10-15-2007, 10:45 PM
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Headphoneus Supremus
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Join Date: May 2004
Location: Ann Arbor, MI
Posts: 3,895
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Quote:
Originally Posted by Skylab
I will for sure, looking forward to trying them.
In the meantime, I spent a good amount of time listening to the 337 today while watching football. It sounds WONDERFUL. It's not as impressive cosmetically as I thought it was going to be, but I don't care - it sounds TERRIFIC. So very engaging sounding. It's not overly romantic at all - has a wonderfully clear midrange, just a touch lush of neutral, but it's not a super-tubey sounding tube amp. And it has amazing bass power for a tube amp, and a refine, clean, extended treble. And the best soundstage of any amp I have ever owned, except maybe the Blue Circle SBH.
In short - the 337 is a terrific amp, and a tremendous bargain.
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when you say 'amazing bass' which cans are you using?
I can attest to the out-of-head feeling of DV amp; my 332 does the same thing. However, I don't think I am getting 'amazing bass' when compared to the Dynahi I use to have. Is 337 that much better than 332 wrt to bass? (I use K701)
__________________
TEAM HF-1(#25) / HF-2 (#268) TEAM HSPICE
Headfi Feedback
Headphone: SB3/CAL Delta > Corda Opera/M^3 > HD650v2; HF-1; HF-2
Speaker: SD Transporter > CAL Alpha > Ayre AX-7e > Harbeth Monitor 30
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10-15-2007, 10:48 PM
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Headphoneus Supremus
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Join Date: May 2004
Location: Ann Arbor, MI
Posts: 3,895
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Quote:
Originally Posted by minivan
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uh..what is this 337SE? is this an upgrade to the 337? 
__________________
TEAM HF-1(#25) / HF-2 (#268) TEAM HSPICE
Headfi Feedback
Headphone: SB3/CAL Delta > Corda Opera/M^3 > HD650v2; HF-1; HF-2
Speaker: SD Transporter > CAL Alpha > Ayre AX-7e > Harbeth Monitor 30
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10-15-2007, 10:58 PM
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Banned
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Join Date: Aug 2007
Location: Orlando, FL
Posts: 1,624
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Quote:
Originally Posted by chesebert
uh..what is this 337SE? is this an upgrade to the 337? |
I think so..
SE = Special Edition, no? 
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