1957GoldTop
New Head-Fier
- Joined
- Feb 23, 2012
- Posts
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I just purchased a pair of AKG K702s. I'm now looking for an amp to power it. After reading around (but no live testing) I think I've narrowed it down to the following (original budget under $500, but pushed a bit):
Woo Audio WA6:
http://www.wooaudio.com/products/wa6.html
Woo Audio WA3:
http://www.wooaudio.com/products/wa3.html
Burson Audio HA-160:
http://bursonaudio.com/burson_headamp_160.htm
Schitt Lyr:
http://schiit.com/cart/index.php?main_page=product_info&cPath=0&products_id=3
Heed CanAmp (which seem to get the highest praise with the K70X:
http://www.heedaudio.hu/en/products/modular-line/canamp
The amp will be connected to a Marantz SR6005. The sources will vinyl (Rega RP1) or lossless 44.1/16 & 96/24 digital files going to my Marantz via an optical cable from my MacPro.
So, thoughts on these or alternatives in my price range? Does anyone have direct experience and/or own any of these combos?
So some questions about some technical things that I've been reading and haven't quite understood even after reading (the tech side of me wants to know this stuff, but I know it's more about how I like the sound in the end and not the tech specs):
I've read someone say WRT the K70X's and the Lyr:
"I wouldn't use the Lyr with highly efficient/low impedance headphones like Grados or Ultrasones. The K701s aren't that efficient and a better match."
What does it mean that the K70X's aren't "efficient" and is that a bad thing?
I've read that you want a headphone impedance to output impedance to be around 10 or higher ("Damping Factor" ??). I noticed that SS amps seem to rate their impedance as a single number. For instance the HA-160 is listed as 5.6 Ohms (which would be 11). However, tube amps seem to list their output impedance in ranges like the WA6's 8-600 Ohms. Why is that and what does that mean for the ""Damping Factor"?
And finally, I've read comments like:
"I'm getting a little paranoid from reading a lot of reviews that almost all of the tube amps available will not be sufficient enough to amplify the 701/702" I guess I'm not fully understanding why that is.
Thanks!
Woo Audio WA6:
http://www.wooaudio.com/products/wa6.html
Woo Audio WA3:
http://www.wooaudio.com/products/wa3.html
Burson Audio HA-160:
http://bursonaudio.com/burson_headamp_160.htm
Schitt Lyr:
http://schiit.com/cart/index.php?main_page=product_info&cPath=0&products_id=3
Heed CanAmp (which seem to get the highest praise with the K70X:
http://www.heedaudio.hu/en/products/modular-line/canamp
The amp will be connected to a Marantz SR6005. The sources will vinyl (Rega RP1) or lossless 44.1/16 & 96/24 digital files going to my Marantz via an optical cable from my MacPro.
So, thoughts on these or alternatives in my price range? Does anyone have direct experience and/or own any of these combos?
So some questions about some technical things that I've been reading and haven't quite understood even after reading (the tech side of me wants to know this stuff, but I know it's more about how I like the sound in the end and not the tech specs):
I've read someone say WRT the K70X's and the Lyr:
"I wouldn't use the Lyr with highly efficient/low impedance headphones like Grados or Ultrasones. The K701s aren't that efficient and a better match."
What does it mean that the K70X's aren't "efficient" and is that a bad thing?
I've read that you want a headphone impedance to output impedance to be around 10 or higher ("Damping Factor" ??). I noticed that SS amps seem to rate their impedance as a single number. For instance the HA-160 is listed as 5.6 Ohms (which would be 11). However, tube amps seem to list their output impedance in ranges like the WA6's 8-600 Ohms. Why is that and what does that mean for the ""Damping Factor"?
And finally, I've read comments like:
"I'm getting a little paranoid from reading a lot of reviews that almost all of the tube amps available will not be sufficient enough to amplify the 701/702" I guess I'm not fully understanding why that is.
Thanks!