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| Headphone Amps (full-size) Discussion of desktop headphone amps. |
10-21-2008, 07:56 PM
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100+ Head-Fi'er
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Join Date: Jul 2007
Location: Helsinki, Finland
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OK, I'll buy Sophia Princess Mesh Plate 274B.
Thank you all for feedback 
__________________
Source: Squeezebox Duet / Auzen X-FI Prelude (OPA627) / iPod Classic 160G
Amp: Woo Audio WA6 (maxed / pdps)
Headphone: Denon AH-C700 / Sennheiser HD 800 / Sennheiser HD 650 (APS mod) + APureSound V3 / Denon AH-D2000 (markl mod) + APureSound V3
In progress: Buffalo32S DAC & balanced β22
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10-22-2008, 10:32 AM
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Join Date: Oct 2003
Location: UK
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Quote:
Originally Posted by sclamb
Got another tube that doesn't hum. The Mullard GZ30 with the GE 6EW7s is making a very nice sound. Not quite as airy as the 274B but the bass is deeper for sure. I shall let it play many hours and see if things open up at all, but so far a nice combination.
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Well, the soundstage with the Mullard GZ30 is pretty much 95% of that when using the 274B, maybe even a bit higher. The sense of air and space around the instruments is not quite as defined, but with the K701 it still sounds clean and the bass is very tight and controlled. A nice tube at a reasonable cost (well at least comapred to the SEP 274B). I'd say 95% of the performance for 10% of the cost.
__________________
Home: IsoTek Supreme > Cyrus CD6 SE > Chord Chameleon Silver Plus > WooAudio6 SE maxxed/Sophia Princess 274B > Grado GS1000 Black Dragon
Home: iPod Video 60GB > Fatman iTube
Mobile: iPod Video 60GB > TurboDock II > Oehlbach Mini-Mini > RSA Hornet > ACS T2XS
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10-22-2008, 10:54 AM
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100+ Head-Fi'er
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Join Date: Jul 2007
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Posts: 332
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Quote:
Originally Posted by sclamb
Well, the soundstage with the Mullard GZ30 is pretty much 95% of that when using the 274B, maybe even a bit higher. The sense of air and space around the instruments is not quite as defined, but with the K701 it still sounds clean and the bass is very tight and controlled. A nice tube at a reasonable cost (well at least comapred to the SEP 274B). I'd say 95% of the performance for 10% of the cost.
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I have one NOS -58 Mullard GZ30, is this the same?
__________________
Source: Squeezebox Duet / Auzen X-FI Prelude (OPA627) / iPod Classic 160G
Amp: Woo Audio WA6 (maxed / pdps)
Headphone: Denon AH-C700 / Sennheiser HD 800 / Sennheiser HD 650 (APS mod) + APureSound V3 / Denon AH-D2000 (markl mod) + APureSound V3
In progress: Buffalo32S DAC & balanced β22
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10-22-2008, 11:09 AM
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Join Date: Oct 2003
Location: UK
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Not sure if it is exactly the same, although being a GZ30 it will work.
Mine is a 5Z4 GZ30 CV2748 Mullard KB/DA Brown Base. Sadly, the tube glow is nowhere near as enticing as the 274B!
__________________
Home: IsoTek Supreme > Cyrus CD6 SE > Chord Chameleon Silver Plus > WooAudio6 SE maxxed/Sophia Princess 274B > Grado GS1000 Black Dragon
Home: iPod Video 60GB > Fatman iTube
Mobile: iPod Video 60GB > TurboDock II > Oehlbach Mini-Mini > RSA Hornet > ACS T2XS
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10-22-2008, 12:12 PM
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Headphoneus Supremus
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Join Date: Jul 2005
Location: Dallas, TX / St. Louis, MO
Posts: 3,152
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Where?
Quote:
Originally Posted by sclamb
Well, the soundstage with the Mullard GZ30 is pretty much 95% of that when using the 274B, maybe even a bit higher. The sense of air and space around the instruments is not quite as defined, but with the K701 it still sounds clean and the bass is very tight and controlled. A nice tube at a reasonable cost (well at least comapred to the SEP 274B). I'd say 95% of the performance for 10% of the cost.
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Where can you buy them for $15 (10% x $150)?
__________________
Sources: Marantz SA-8001 SACD/CDP - California Audio Labs Delta Transport - California Audio Labs Alpha Tube DAC - Monarchy Audio M24 Tube DAC - Monarchy Digital Upsampler - Sony Walkman EJ612CK & JD01 Portable CDPs -- Sold: Musical Fidelity XDAC v3 -- Music Hall MMF CD25 1+ CDP - California Audio Labs Sigma II Tube DAC.
Amps: WooAudio 6 SE Maxed - Aphex 204 Aural Exciter (to remove HD650 veil) - Shellbrook Maxi Moy Portable - Grant Fidelity B-283 Tube Buffer -- Sold: Singlepower Extreme (tried, but canceled order) - Darkvoice 332 w Svetlana 6S19P-EV & Tung Sol 5654 tubes (superb) - Musical Fidelity X-CANv8 - Musical Fidelity XCAN v3 (with PinkFloyd Mods) - Musical Fidelity X10 v3 Tube Buffer with XPSU v3 - Graham Slee Solo 2007 - WooAudio 3 - Grado RA-1 - Shellbrook Audio Lab Hybrid Head (Millet Hybrid) - Core Audio Tube Buffer - Meier Audio Move.
Phones: Senn HD580 (new version modded & de-veiled) w RAL Senn Cryo-Silver cable - Grado RS-1 - ATH AD2000 - Denon AH D5000 w Markl Mods -- Sold: Bose Tri-Port ("the beginning”) - Senn HD280 Pro - Senn HD600 x2 (old versions) & HD650 x2 (old and new versions) w Cardas, Zu Mobius, Headphile Senn v2 Blacksilver cables - Grado SR125 - Grado SR225 - Grado SR325i - Grado GS-1000.
Accessories: Signal Cable Black Magic PCs x2 - Iron Lung Jellyfish PCs x2 - CT Cryo Silver ICs x6 - Shellbrook Silver Mini IC - RnB Audio Sky Blue Mini IC - Caig Pro Gold - Walker SST - Herbie‘s Tube Dampers.
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10-22-2008, 12:16 PM
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Join Date: Oct 2003
Location: UK
Posts: 1,231
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On eBay. I got one for $20 and one for $18.50. OK, so around 12% of the price of a SEP 274B, but still a good buy given the relative performance.
__________________
Home: IsoTek Supreme > Cyrus CD6 SE > Chord Chameleon Silver Plus > WooAudio6 SE maxxed/Sophia Princess 274B > Grado GS1000 Black Dragon
Home: iPod Video 60GB > Fatman iTube
Mobile: iPod Video 60GB > TurboDock II > Oehlbach Mini-Mini > RSA Hornet > ACS T2XS
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10-22-2008, 02:41 PM
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100+ Head-Fi'er
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Join Date: Jan 2007
Location: NH
Posts: 208
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~ 150 hours of burn in.
My maxed WA6 is coming along very nicely - I'm really enjoying this amp. So, am I about 1/4 of the way to complete burn in? I'm using the stock output tubes and the Sophia - nice. Home system: Denon DVD 1500II (matches SQ of any $3K CDP I've heard), WA6, Senn 650s.
My office system was sounding almost as good as my home system a couple of weeks ago, but as the WA6 continues to improve, this is no longer the case. It's still a very good sound though (Vista, wav, XXHighend player, Silverstone EB01, WA3, AKG k701s). I plan on buying a good DAC for this system soon (DacMagic?), as this is the weak link.
Best,
Larry
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10-22-2008, 09:45 PM
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100+ Head-Fi'er
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Join Date: Jul 2007
Location: Helsinki, Finland
Posts: 332
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__________________
Source: Squeezebox Duet / Auzen X-FI Prelude (OPA627) / iPod Classic 160G
Amp: Woo Audio WA6 (maxed / pdps)
Headphone: Denon AH-C700 / Sennheiser HD 800 / Sennheiser HD 650 (APS mod) + APureSound V3 / Denon AH-D2000 (markl mod) + APureSound V3
In progress: Buffalo32S DAC & balanced β22
Feedback / Pics
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10-22-2008, 09:51 PM
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Headphoneus Supremus
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Join Date: Nov 2004
Location: Santa Rosa, CA --image Katmandu, Nepal Summer 2006 *We are but a cosmic blink or was that wink?*
Posts: 7,600
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Yeah, too bad about the color. :^)
Looks very neat and well laid out. I would have the first dropping resistor a little back of the cap rather than right under it because it will heat the cap up as it get rid of heat. What wattage did you use? I like to use at least 5 watt and even 12 though I used the 5 watt Kiwame. I guess those are 5 watt. When did they change to brown? The 560's I would move back away from the cap some.
Nice work, how does it sound?
__________________
John aka Jam and Jama
Photo gallery at: www.pbase.com/jamato8 Recent publication: Ethnobotany Research & Applications, Vol 7 (2009) Kam Guilzhouh nyim Guangxxih di Benxtux Wenchual nyim Zihyuanc dih Gonxliix: Kam Local Indigenous Knowledge and Sustainable Resource Management in Guizhou and Guangxi Provinces, China http://www.ethnobotanyjournal.org/
The one constant in life is change, so will that change?
Feel with your own heart, see with your own eyes and hear with your own ears.
JH13's > Why stay home when you can go to the concert?
Listening with: JH13 Pro, Grado HF2 #469
Digital conversion: the all new MB-1 optical dual Wolfson portable dac
Amps I am currently listening with: RSA P-51 Mustang, SR 71A, iBasso D10, Lisa III, OEM BLack Gate, Non Black Gate, iBasso P3+, iBasso T3 (new version), RSA Shadow, iBasso D4
Favorite monitors: JH13 Pro, Grado HF2, Ultrasone Ed. 9 #1010, ATH-ESW10JPN
Portable monitor ratings: 1. JH 13 Pro 2. ESW10 JPN 3. PortaPros, KSC35 (modified-a great value) *4. UM2
Source: iRiver H130,140, D303 optical out, D-EJ955, D-EJ1000, D-EJ2000, 25s, 25, D-303, D-777 and others (optical out if available)
Digital Conversion: MB-1 optical Dac, Altoid tin Monica Dac I, Altoid tin Monica II Asynchronous Reclocking Dac, iBasso D10
Headphone Amplifiers:RSA: Shadow, Predator, P-51 Mustang, SR71A, Xin: IV Micro, IV Mini, Reference, SM3B, SuperMacro V LE, SM3 V6 (IV all switches), XRTA X-1, C&C Box, iBasso: P1, P2, P3, P3+, T1, T2, T3, T4 D1, D2, D3, D4, D10 Woo 3 Modified-Siemens 6922 driver, 7236 power tube, Woo 6 with the original Pseudo dual PS -
Ear Monitors: JH13 Pro, Ultra Ed. 9, Grado HF-2/F1 #469, HD650, ATH-ESW10 JPN, Ultrasone 750, HFI780, PortaPro modified, KSC35, Equation RP-21, Westone UM2
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10-22-2008, 10:09 PM
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100+ Head-Fi'er
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Join Date: Jul 2007
Location: Helsinki, Finland
Posts: 332
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Quote:
Originally Posted by jamato8
Yeah, too bad about the color. :^)
Looks very neat and well laid out. I would have the first dropping resistor a little back of the cap rather than right under it because it will heat the cap up as it get rid of heat. What wattage did you use? I like to use at least 5 watt and even 12 though I used the 5 watt Kiwame. I guess those are 5 watt. When did they change to brown? The 560's I would move back away from the cap some.
Nice work, how does it sound?
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The first ones are 5 watt Mills. I ordered those about two months ago, and that was the first time I got brown resistors. The gap to those caps is about ½ inch, so I think it will do. I guess I was a bit afraid that those resistors would move against those transforms. Silly me, since that ain't gonna happen
Edit: I moved those resistors more away from the caps
__________________
Source: Squeezebox Duet / Auzen X-FI Prelude (OPA627) / iPod Classic 160G
Amp: Woo Audio WA6 (maxed / pdps)
Headphone: Denon AH-C700 / Sennheiser HD 800 / Sennheiser HD 650 (APS mod) + APureSound V3 / Denon AH-D2000 (markl mod) + APureSound V3
In progress: Buffalo32S DAC & balanced β22
Feedback / Pics
Last edited by jantze; 10-22-2008 at 10:11 PM.
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10-22-2008, 10:17 PM
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100+ Head-Fi'er
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Join Date: Jul 2007
Location: Helsinki, Finland
Posts: 332
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Quote:
Originally Posted by jamato8
Nice work, how does it sound?
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Oh, no listening yet. Trying to find my stock tubes for the burn in. I'm gonna burn in this baby for two days, until I get my new tubes from Woo Audio.
I ordered 2 x matched pair of narrow 6EW7's and a Sophia Princess Mesh Plate 274B from Jack.
This week I have all the time, since I broke my ankle, so I have to stay home all day 
__________________
Source: Squeezebox Duet / Auzen X-FI Prelude (OPA627) / iPod Classic 160G
Amp: Woo Audio WA6 (maxed / pdps)
Headphone: Denon AH-C700 / Sennheiser HD 800 / Sennheiser HD 650 (APS mod) + APureSound V3 / Denon AH-D2000 (markl mod) + APureSound V3
In progress: Buffalo32S DAC & balanced β22
Feedback / Pics
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10-23-2008, 12:16 AM
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Headphoneus Supremus
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Join Date: Jul 2005
Location: Dallas, TX / St. Louis, MO
Posts: 3,152
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"The Eagle Has Landed"
Well... my maxed WA6 SE arrived today.
Set it up with the stock Sovtek rectifier, and a pair of Sylvania 6DE7s (just for burn in) and briefly tried it out with my HD580/600s, RS-1s, D5000s and AD2000s, with my Marantz SA8001 as the source.
No hum, or hiss at any volume level. No audible transformer hum. No flashes.
Just incredible sound out of any set of phones - both high and low impedance. In fact, the low impedance phones may actually sound a hair better - if I can really discern any difference. All sound amazingly simliar - and each is phenomenal. I've never heard the RS-1s, and AD2000s sound better... or... the D5000s for that matter (just as good as with the X-CANv8).
The amp has all the power you would ever want - plays very loudly at 10-11 O'clock with both high and low impedance phones.
Incredible detail and resolution throughout the audio spectrum. Spacious soundstage with all phones, with good separation and positioning. Bass is fast and tight, and extended with great texture, and the mids and highs are incredibly clear, detailed and extended. All with a very quiet background.
Quite simply the best sound I've heard out of all the amps I've tried, by a fair margin - including the Singlepower Extreme.
I've got all the good tubes to try, as it burns in, including the Princess.
But... how much better can it really get, even with the Princess, and Tung Sol 5U4GB / GBYs, and Tung Sol 6DE7s, or Raytheon 6EW7s?
Pretty amazing, really!
__________________
Sources: Marantz SA-8001 SACD/CDP - California Audio Labs Delta Transport - California Audio Labs Alpha Tube DAC - Monarchy Audio M24 Tube DAC - Monarchy Digital Upsampler - Sony Walkman EJ612CK & JD01 Portable CDPs -- Sold: Musical Fidelity XDAC v3 -- Music Hall MMF CD25 1+ CDP - California Audio Labs Sigma II Tube DAC.
Amps: WooAudio 6 SE Maxed - Aphex 204 Aural Exciter (to remove HD650 veil) - Shellbrook Maxi Moy Portable - Grant Fidelity B-283 Tube Buffer -- Sold: Singlepower Extreme (tried, but canceled order) - Darkvoice 332 w Svetlana 6S19P-EV & Tung Sol 5654 tubes (superb) - Musical Fidelity X-CANv8 - Musical Fidelity XCAN v3 (with PinkFloyd Mods) - Musical Fidelity X10 v3 Tube Buffer with XPSU v3 - Graham Slee Solo 2007 - WooAudio 3 - Grado RA-1 - Shellbrook Audio Lab Hybrid Head (Millet Hybrid) - Core Audio Tube Buffer - Meier Audio Move.
Phones: Senn HD580 (new version modded & de-veiled) w RAL Senn Cryo-Silver cable - Grado RS-1 - ATH AD2000 - Denon AH D5000 w Markl Mods -- Sold: Bose Tri-Port ("the beginning”) - Senn HD280 Pro - Senn HD600 x2 (old versions) & HD650 x2 (old and new versions) w Cardas, Zu Mobius, Headphile Senn v2 Blacksilver cables - Grado SR125 - Grado SR225 - Grado SR325i - Grado GS-1000.
Accessories: Signal Cable Black Magic PCs x2 - Iron Lung Jellyfish PCs x2 - CT Cryo Silver ICs x6 - Shellbrook Silver Mini IC - RnB Audio Sky Blue Mini IC - Caig Pro Gold - Walker SST - Herbie‘s Tube Dampers.
Last edited by Gradofan2; 10-23-2008 at 12:18 AM.
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10-23-2008, 01:00 AM
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100+ Head-Fi'er
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Join Date: Jul 2007
Location: Helsinki, Finland
Posts: 332
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np. Riverside - Out of Myself
Oh my, does it get even better with Sophia Mesh Plate 274B & RCA 6DE7's? I'm listening with dirt cheap Chinese tubes now 
__________________
Source: Squeezebox Duet / Auzen X-FI Prelude (OPA627) / iPod Classic 160G
Amp: Woo Audio WA6 (maxed / pdps)
Headphone: Denon AH-C700 / Sennheiser HD 800 / Sennheiser HD 650 (APS mod) + APureSound V3 / Denon AH-D2000 (markl mod) + APureSound V3
In progress: Buffalo32S DAC & balanced β22
Feedback / Pics
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10-23-2008, 01:03 AM
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Headphoneus Supremus
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Join Date: Aug 2007
Location: Rocky Mountains, CO
Posts: 11,811
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Just wait till it is burned-in and you get 100 hours on the princess. 
__________________
Quote:
Originally Posted by Leonardo_BVB
...honestly, it's like comparing ugly Betty with Scarlett Johjansson, you do not know where to start because you cannot take your eyes off Scarlett...
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Larry Head-Fi Feedback
Oct 09 Colorado CanJam @ RMAF Impressions
SEE PUBLIC PROFILE "ABOUT ME" FOR LINKS TO REVIEWS AND MY GEAR.
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10-23-2008, 01:14 AM
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100+ Head-Fi'er
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Join Date: Jul 2007
Location: Helsinki, Finland
Posts: 332
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Quote:
Originally Posted by HeadphoneAddict
Just wait till it is burned-in and you get 100 hours on the princess. |
I hope my burn-in time would be less then last time (fully maxed), since now I'm using the old V-Caps & Black Gates. I only added two more Black Gate Power Tanks + one new 22uf cap. Lets's see or hear
I hope my Sophia will arrive on Friday
__________________
Source: Squeezebox Duet / Auzen X-FI Prelude (OPA627) / iPod Classic 160G
Amp: Woo Audio WA6 (maxed / pdps)
Headphone: Denon AH-C700 / Sennheiser HD 800 / Sennheiser HD 650 (APS mod) + APureSound V3 / Denon AH-D2000 (markl mod) + APureSound V3
In progress: Buffalo32S DAC & balanced β22
Feedback / Pics
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