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# HifiMAN HE-6 Planar Magnetic Headphone - Page 663

Quote:
Originally Posted by Dubstep Girl

the GSX mk2 has a preamp doesn''t it?

and i plan on rebuying WA2 which is tube pre-amp

oh it says 30W into 8 ohms, how much power is that for HE-6?

Plenty. I bought Jose's Aleph 3 and it drives the HE-6 so well. I am hard pressed to think of a better combo I've heard.

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Quote:
Originally Posted by Dubstep Girl

the GSX mk2 has a preamp doesn''t it?

and i plan on rebuying WA2 which is tube pre-amp

oh it says 30W into 8 ohms, how much power is that for HE-6?

That's 4.8 watts in 50 ohms at 83 db SPL. Remember those are Class A watts too. As Wotts said, it is plenty.

I bet pair it with a WA2 as pre-amp should be a wonderful sounding system.

deleted

Edited by brunk - 10/31/13 at 11:28am
Quote:
Originally Posted by brunk

Taken from GSX webpage

 Output Voltage 15Vpp (single ended), 30Vpp (balanced)

Now we can do our calculations:

Single-Ended operation

Ppeak = (15 V)2 / 50 Ω = 4.5 watts peak instantaneous

The RMS value is 15 V × 0.707 = 10.6 VRMS. This voltage into a load of 50 Ω gives a power of:

Pavg = (10.6 V)2 / 50 Ω = 2.25 watts RMS continuous

Balanced Operation

Ppeak = (30 V)2 / 50 Ω = 18 watts peak instantaneous

The RMS value is 30 V × 0.707 = 21.2 VRMS. This voltage into a load of 50 Ω gives a power of:

Pavg = (21.2 V)2 / 50 Ω = 8.99 watts RMS continuous

EDIT: That is only part of the story however. What i want to know is when it leaves Class A (much earlier than a speaker amp im sure) and distortion figures into those RMS figures.

Those are for the MK1, not the MK2. Justin still hasn't updated them.

Quote:
Originally Posted by MacedonianHero

Those are for the MK1, not the MK2. Justin still hasn't updated them.

Ahh ok, thanks for the clarification.

Quote:
Originally Posted by brunk

Ahh ok, thanks for the clarification.

No worries.

Does the mk2 have higher power output than the mk1?

Edited by Armaegis - 10/30/13 at 7:11pm
Quote:
Originally Posted by Armaegis

Are the Mk2 numbers higher?

Yep...quite a bit more actually.

http://www.head-fi.org/t/581796/amp-recommendations-for-audeze-lcd-3/720#post_9668240

Edited by MacedonianHero - 10/30/13 at 7:11pm
That doesnt seem like it would give alot of headroom volume wise. Nor that it would be more over the gsx mk2.
As I do not know those amps , I can say this the headphones seem to be finicky and the amp power although a must is not the only criteria . Listening is of most importance. One of the amps I use with them is the audio gd M8 . I feels it adds some warmth and give great depth to the sound. Just my thoughts.

I retracted my calculations of the GSX mk I, because i miscalculated and the RMS power would actually be half, so 4.5w RMS balanced would be correct. If GSX mkII has a voltage output of 30v p-p  then it would be the same.

Quote:
Originally Posted by brunk

I retracted my calculations of the GSX mk I, because i miscalculated and the RMS power would actually be half, so 4.5w RMS balanced would be correct. If GSX mkII has a voltage output of 30v p-p  then it would be the same.

On the GS-X MK2:

Quote:
Originally Posted by Solude

Power is 48Vpp balanced, 6W pure class A into 50ohm on tiny little heatsinks.  I believe Kevin measured it at 8W into 50ohm but conservatively... 6W.  ......

If its putting 8w into the 50 ohm load I would be really surprised. The Woo WA5 XLR output drives it effortlessly. The GSX Mk111 is not a terrific amp for the HE6. I really enjoy the gsx MK111 with all my other headphones but the he6 is not benign driven as wells I hear it on the WA5.  Just told me it was about 6w going into that he6 but I am not even sure its that. I would think Brunk calculation may be closer to what it really is or at least thetas what my ears are telling me.

i would consider a WA5 if it actually drives the HE-6 better than gsx mk2. i've heard different opinions. some saying a speaker amp would still be better. like one of the first watt amps or something.

i find the HE-6 slightly bright, and could have better mids on the GSX MK2, but the transparency is a step up over HE-500, and the bass, oh the bass is much much better than HE-500, my favorite bass presentation right now. i do see room for improvement on the HE-6 with the GSX MK2, the good thing is that it does drive it, and it gets to good loud volumes, but its slightly shy of perfection.

Edited by Dubstep Girl - 10/31/13 at 10:01pm
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