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| Headphone Amps (full-size) Discussion of desktop headphone amps. |
09-03-2008, 07:44 PM
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Headphoneus Supremus
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Join Date: Dec 2004
Location: NY
Posts: 1,504
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Woo 3 question
-=Hey Guys=-
I have my 880s and 650s in another room and was wondering if my 701s can be powered by my Woo3, without distortion, if volumes are kept low.
I understand the problems the "3" has with low impedance headphones, but I'm wondering if it's a volume issue, where more power is called for, or it just won't perform at any volume level because the volume control is an attenuator?
Thanks
USG
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09-03-2008, 09:35 PM
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Headphoneus Supremus
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Join Date: Sep 2005
Location: Virginia,USA
Posts: 9,867
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I've used my Woo3 with my ER4S, 325i, DT-880(250), DT-770(80), HD 650, K240S(55) & K240M(600). The amp drove all fine and sounded good. I did listen briefly to a friends 701 with my Woo3 and I don't recall any problems.
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09-03-2008, 09:39 PM
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Headphoneus Supremus
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Join Date: Dec 2003
Location: Toronto, Ontario
Posts: 10,132
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I don't understand. You own the Woo3 and the K701... surely you are the best person to answer this question?
__________________
"For a list of all the ways technology has failed to improve the quality of life, please press three."
Moon Audio modded Original CD-2008MK-II / de Almeida Signature Shadow XLR / McAlister Audio Massive Attack / Headphile modded BlackGold recabled AKG K340 OR APureSound V3 recabled Grado RS-1
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09-03-2008, 11:00 PM
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100+ Head-Fi'er
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Join Date: Aug 2006
Posts: 285
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I bought a WA3+ for my 701's and was NOT impressed at all; at any level the bass was flabby and bloated (sounded like you were listening through blown speakers). When I spoke with Jack about it he said in the end its just an impedence mismatch; the WA3 (or WA3+) work better with higher impedence cans than they do with lower impedence onces.
But, like philodox said; you own them both, what do you think?
__________________
Cans: Senn HD650; Shure e4c; *AKG K701; *ATH-W1000; *Denon d2000 (Markl modded); *Darth Beyer (Zebrawood) V3O (open); *Ultrasone 780 (ALO modded)
Amps: Darkvoice 337 (NOS Tung Sol 5998 Power Tube, NOS RCA 5693 Driver Tube); *Pink Floyd Musical Fidelity X-can v3 (NOS 1966 Westinghouse tubes) and Little Pinkie v3i PSU; *RSA Hornet M; *Stock Musical Fidelity X-can v3; *WooAudio WA6; *WooAudio WA3+
Sources: 4G Red Wine Audio iMod; 5.5G Stock iPod; Yulong DAH1 mark; *Squeezebox Duet; *Jolida CDP
Cables: Assorted ALO and Signal Cable stuff
*Gone on to another life with a fellow Head-fier...
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09-04-2008, 12:07 AM
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100+ Head-Fi'er
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Join Date: Jan 2007
Location: NH
Posts: 196
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My 701s and WA3. . .
. . . sound great together. My sources have been a Linn Axis Turntable (lower line from the 80s?), Denon CD player circa 1992, and my laptop with a cheap USB DAC. I think that your amp and headphones should sound very good together - neither should be the weak link.
Best,
Larry
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09-04-2008, 05:05 AM
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Headphoneus Supremus
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Join Date: Dec 2004
Location: NY
Posts: 1,504
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Quote:
Originally Posted by philodox
I don't understand. You own the Woo3 and the K701... surely you are the best person to answer this question?
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I wish that was the case. When I turn up the volume, the bass gets flabby relative to my GS-1 or M^3, but at low volumes, I don't seem to notice it.
What I was looking for was more of a technical answer.
Catch ya on the flip
USG
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09-04-2008, 06:06 PM
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Headphoneus Supremus
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Join Date: Dec 2004
Location: NY
Posts: 1,504
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anyone have further input?
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09-04-2008, 06:45 PM
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Headphoneus Supremus
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Join Date: Jul 2005
Location: Dallas, TX / St. Louis, MO
Posts: 3,148
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My Experience Was Similar...
Quote:
Originally Posted by Bigjppop
I bought a WA3+ for my 701's and was NOT impressed at all; at any level the bass was flabby and bloated (sounded like you were listening through blown speakers). When I spoke with Jack about it he said in the end its just an impedence mismatch; the WA3 (or WA3+) work better with higher impedence cans than they do with lower impedence onces.
But, like philodox said; you own them both, what do you think?
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That was my experience also with my WA3 and Grados (low impedance phones). Jack's explanation was the same, though he suggested the WA3+ would be better with low impedance phones, he suggested I go with the WA6, if I wanted to drive both.
__________________
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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09-04-2008, 07:42 PM
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Headphoneus Supremus
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Join Date: Dec 2004
Location: NY
Posts: 1,504
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Quote:
Originally Posted by Gradofan2
That was my experience also with my WA3 and Grados (low impedance phones). Jack's explanation was the same, though he suggested the WA3+ would be better with low impedance phones, he suggested I go with the WA6, if I wanted to drive both.
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Hi GF2, long time no speak to..... 
I don't really want to "drive" the 701s with the W3, just be able to use it occasionally with the 701s, at low volumes, but without distortion. I don't know if that's possible.
USG
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09-04-2008, 08:11 PM
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Headphoneus Supremus
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Join Date: Dec 2003
Location: Toronto, Ontario
Posts: 10,132
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"just be able to use it occasionally with the 701s, at low volumes, but without distortion. I don't know if that's possible."
Again, I'm not sure if I follow you here... when you plug your K701's into your Woo 3 and listen at low volumes do you hear distortion? If you don't, there is no need worry about it. If you do, then it might merit some investigation as to the source of the distortion and if it is fixable.
__________________
"For a list of all the ways technology has failed to improve the quality of life, please press three."
Moon Audio modded Original CD-2008MK-II / de Almeida Signature Shadow XLR / McAlister Audio Massive Attack / Headphile modded BlackGold recabled AKG K340 OR APureSound V3 recabled Grado RS-1
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09-06-2008, 09:24 AM
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Headphoneus Supremus
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Join Date: Dec 2004
Location: NY
Posts: 1,504
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Quote:
Originally Posted by philodox
"just be able to use it occasionally with the 701s, at low volumes, but without distortion. I don't know if that's possible."
Again, I'm not sure if I follow you here... when you plug your K701's into your Woo 3 and listen at low volumes do you hear distortion? If you don't, there is no need worry about it. If you do, then it might merit some investigation as to the source of the distortion and if it is fixable.
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Maybe distortion is the wrong word....
USG
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09-06-2008, 02:37 PM
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Headphoneus Supremus
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Join Date: Jul 2005
Location: Dallas, TX / St. Louis, MO
Posts: 3,148
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You Might...
Quote:
Originally Posted by upstateguy
Maybe distortion is the wrong word....
USG
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You might want to just call / email Jack and ask him.
From what I've read the AKGs require quite a bit of power to drive them properly - the WA3 may not adequately provide that to your K701s, though it seems to excel with Senns.
And... if you haven't tried them already, you may find some other tubes would help. As I recall the 5998s / 7236s provide a bit more gain, than the 6AS7s, and 6080s, and you might try some alternative 6922s / 6DJ8s. The Russian 6H23N-EBs, seem to have a bit tighter, more prominent bass, than others. And, of course, the Amperex 6DJ8s / 6922s do also.
__________________
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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