or Connect
Head-Fi.org › Forums › Summit-Fi (High-End Audio) › High-end Audio Forum › Amps that can drive the HiFiMan HE-6 planar headphones
New Posts  All Forums:Forum Nav:

Amps that can drive the HiFiMan HE-6 planar headphones - Page 276

post #4126 of 4133
Read reviews and go listen to judge for yourself. Spec's don't tell you how it will sound (even though it may give you a hint).
Quote:
Originally Posted by DaemonSire View Post

Unfortunately finding information about quality power is hard to come by.  Any comments on this amp?

http://www.parasound.com/vintage/hca750a.php

Parasound HCA 750a
75W @ 8ohm.



SPECIFICATIONS



  • Continuous Power Output - Stereo: 

       75 watts RMS x 2, 20 Hz - 20 kHz, 8 Ω, both channels driven; 

       125 watts RMS x 2, 20 Hz - 20 kHz, 4 Ω, both channels driven


  • Continuous Power Output - Mono: 

        250 watts RMS, 20 Hz - 20 kHz, 8 Ω


  • Current Capacity: 

        20 amperes peak per channel


  • Slew Rate:

        > 130 V/µsecond


  • Power Bandwith:

        5 Hz - 100 kHz, +0/-3 dB at 1 watt


  • Total Harmonic Distortion:

        < 0.06 % at full power; < 0.03 % typical levels


  • IM Distortion: 

       < 0.04 %


  • TIM:

        unmeasurable


  • Dynamic Headroom:  

        > 1.5 dB


  • Interchannel Crosstalk: 

        > 80 dB at 1 kHz; 

       > 63 dB at 20 kHz


  • Input Sensitivity:

        0.775V for full output


  • Input Impedance: 

       33 k Ω


  • S/N Ratio: 

       > 110 dB, full power, input shorted, IHF A-weighted


  • Damping Factor:

        > 800 at 20 Hz


  • Power Consumption:

        240 watts


  • Dimensions:

        w 17 1/4" x h 3 1/2" x d 13 1/4", h 4 1/8" with feet


  • Net Weight:

        18 lb.


post #4127 of 4133
Quote:
Originally Posted by DaemonSire View Post
 
  •  

 

Look for an amp strangely heavy weight for the power it produces, many fins for cooling and things like this. Those are a good starting point indication there is some transformer iron and class A bias going inside. That works towards quality, but it's not a guarantee.

 

If at 30 watts it's around 25-30kilograms that's a good sign for example. Double that at 60 watts and keep on adding. That said some brands can do very good AB amps, but if I had a choice I'd always go class A. Still if it puts as little as 8-10 watts of pure class A into 8 ohms you're likely good.


Edited by negura - 7/23/15 at 4:45pm
post #4128 of 4133

Although I haven't tried the HE-6 or HE-560 with many amps, I HAVE tried them with my current amp and the GS-X mk2.

The GS-X mk2 can drive many headphones exceptionally well, but with the Hifi-mans it seemed to lack the punch of a high voltage amp. At medium volumes the cans sound great, but at high volumes it sounds slightly glossed over.

The Cavalli Liquid Glass on the other hand, paired with a great set of tubes, drives these hard-to-drive headphones very well. At high volumes the HE-6 and HE-560s shine.

Sadly I have to part with my Liquid Glass 2 and the Sophia Electric 6SN7s I currently use with them, let me know if you are interested in a sweet package deal! :darthsmile:

post #4129 of 4133
Quote:
Originally Posted by ohhgourami View Post
 


Crest CA2 is really cheap used (~$200). Has all the power you'll need and probably higher quality than the CPX.

 

Thanks I'll keep that in mind.

 

Quote:
Originally Posted by negura View Post
 

 

Look for an amp strangely heavy weight for the power it produces, many fins for cooling and things like this. Those are a good starting point indication there is some transformer iron and class A bias going inside. That works towards quality, but it's not a guarantee.

 

If at 30 watts it's around 25-30kilograms that's a good sign for example. Double that at 60 watts and keep on adding. That said some brands can do very good AB amps, but if I had a choice I'd always go class A. Still if it puts as little as 8-10 watts of pure class A into 8 ohms you're likely good.

 

Good tips, I appreciate it.

 

Quote:
Originally Posted by LarsHP View Post

Read reviews and go listen to judge for yourself. Spec's don't tell you how it will sound (even though it may give you a hint).

 

Reviews don't exactly tell you how it is going to sound with a pair of headphones though.  These amps I am looking at are in a local classified (similar idea to Craigslist) so I can't really go and demo them.  Plus, I don't own an HE-6 yet.  I'm just keeping an eye out and trying to find a worthy amp before I purchase them.

post #4130 of 4133
Can anyone give some suggestions about amps for he6 which are under $1000? Thank you.
post #4131 of 4133

Where are you located?

post #4132 of 4133
Quote:
Originally Posted by DaemonSire View Post
 

 

Unfortunately finding information about quality power is hard to come by.

I've been using the Odyssey Khartago power amp with my HE-6 and love the combination.

While I initially tried the amp with my DAC connected through a preamp, I discovered that the Khartago/HE-6 sounded much better driven directly from my Grace m920 DAC/pre.

The Khartago was (famously) compared favorably to the hugely expensive Soulution solid state amps ($60-110K!!) by the Absolute Sound's Jonathan Valin.

Khartago's circuit board is taken from the highly regarded (~$6K) Symphonic Line RG-1 amp and has been tweaked by Odyssey's Klaus Bunge over more than a decade.

Needless to say its an excellent sounding amp and in basic form it costs <$1K.

 

At the moment I don't have any other suitable amps to compare with the Khartago. I can say I prefer it to the more expensive Violectric v281 headamp with the HE=6.

That said, the Khartago isn't a panacea. It's not going to bath your sources in a euphonic glow. It will sound mostly like your source with maybe a dash of warmth.

While its revealing, the low grain refined sound doesn't pull apart lower quality source material - but shows it in its best light.

In my setup it sounds wonderfully open with great tonal balance and superb bass. I can listen for hours to all sorts of music and the he-6's constantly surprise me. Often I lose track of time and wonder where the last hour went.;)

 

I will soon (hopefully) have the lowish cost Xindak PA-M 20W/8ohm class A amp for comparison. So that will be interesting.

post #4133 of 4133
Quote:
Originally Posted by preproman View Post

Where are you located?
I am in the u.s Thank you.
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: High-end Audio Forum
Head-Fi.org › Forums › Summit-Fi (High-End Audio) › High-end Audio Forum › Amps that can drive the HiFiMan HE-6 planar headphones