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Tompetz
52
Mar 3, 2018
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I'm glad that people just browse and then ask questions but wouldn't it just be easier to look up what this amp is for? (I'm giving the benefit of the doubt to possible trolls here) It's a headphone amp designed specifically to drive higher grade headphones. The tube is for the preamp side to warm up the sound. High end headphones won't run properly on your Yamaha receiver. This is where the headphone amp comes in to play. They are capable of driving extremely high Impedence phones or as is the case with this one, audiophile grade low impedance headphones that require hi current amplification. Not sure what else to say. I do have this amp and have loved it. I even rolled tubes through it and ended up with a really nice sound from a 60 year old GE 12au7 tube.
Mar 3, 2018
Vizdrum
40
Mar 3, 2018
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TompetzSo I did as you recommended. My first observation is that the Yamaha is not very specific about its headphone out. So I went to head-fi and found this thread:
https://www.head-fi.org/threads/yamaha-rx-v663-amplifier-receiver.357437/
From their experience it seems to be able to properly run 600 ohms head-phones (from one particular quote the only amp doing a better job being a ray Samuels audio HR-2, which retails for 875 usd).
So here is my conclusion: Such an amp is only useful if you have very demanding headphones which is not my case: when I want to treat myself I use a p5 bower and Wilkins, it has low impedance requirements and sounds really nice. If one day I were to have such a headphone, I should first try it on my then actual setup before deciding on any further steps.
On another note: I wish I could try one of those high-end audiophile headphones with a 60 yo tube, that does sound like the stuff from legends
Mar 3, 2018
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