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New Leckerton UHA-6S MKII Portable Headphone Amplifier Announced (Update User Impressions Added... - Page 75

post #1111 of 2192
Quote:
Originally Posted by thegrobe View Post

Sounds like I should get some LME 49710 and give it a go myself then, thanks. Which opamps have you used in the mkII?

 

I have tried the OPA209 and OPA627 on the MKII. The LM6171 will be the next in queue. I need at least a month just listening to the MKII with the LME49710 to be able to make any sensible remark.

post #1112 of 2192

I found some of that anti-slip stuff you can wrap around the amp for protection


http://www.amazon.co.uk/Yorkshire-Linen-Slip-Matting-Black/dp/B003VY7DIE

post #1113 of 2192

I actually have a case around my iMod which is rubber and protects it from scratches. So, I just wanted to make that clear. I wouldn't put it metal to metal on anything.

post #1114 of 2192
Quote:
Originally Posted by robm321 View Post

I actually have a case around my iMod which is rubber and protects it from scratches. So, I just wanted to make that clear. I wouldn't put it metal to metal on anything.

Yea when I was just about to buy that I was thinking I would prob get a silicon case for my iPod.

post #1115 of 2192

read in the IF review that this amp can drive the he500 reasonably well...anybody has personal experience with the audeze lcd2 and the leckerton...

post #1116 of 2192
Quote:
Originally Posted by Aravind View Post

read in the IF review that this amp can drive the he500 reasonably well...anybody has personal experience with the audeze lcd2 and the leckerton...


 I would add, without too much hope, a question if this can power, at least barely, the HD800 &/or the T1.

post #1117 of 2192
Quote:
Originally Posted by Aravind View Post

read in the IF review that this amp can drive the he500 reasonably well...anybody has personal experience with the audeze lcd2 and the leckerton...

I'd like to know this too
post #1118 of 2192
A friend likes how the hd800 out of the lecteron. I haven't really tried my LCD3 out of it since its mostly with the home setup. I can give it a try later when I get home.
post #1119 of 2192
Quote:
Originally Posted by Hiyono View Post

A friend likes how the hd800 out of the lecteron. I haven't really tried my LCD3 out of it since its mostly with the home setup. I can give it a try later when I get home.

Please do, I take it its gonna have to be in high gain
post #1120 of 2192
Quote:
Originally Posted by Hiyono View Post

A friend likes how the hd800 out of the lecteron. I haven't really tried my LCD3 out of it since its mostly with the home setup. I can give it a try later when I get home.

 

That's very good to know. I never had courage to hear it, but I will have the chance to do it in January, but I know it's useless to do it without something to power them properly, at least I belive so based on my DT880-250, so I wanted to know if the UHA-6S mkii would be enough to audition the HD800 on J&R or B&H

post #1121 of 2192

You can look up the specs of the amp and of the headphones you want to drive and compare them...

 

UHA-6 Mk II Max output power (1% THD):

  • 30 mW into 16 ohms
  • 55 mW into 32 ohms
  • 110 mW into 100 ohms
  • 55 mW into 300 ohms
 
Sennheiser HD 800:
  • Nominal impedance 300 Ω
  • Sound pressure level (SPL) 102 dB (1kHz/1Vrms)
 
Beyerdynamics T1:
  • Headphone impedance 600 ohms
  • Nominal sound pressure level 102 dB
post #1122 of 2192
Quote:
Originally Posted by ardgedee View Post

You can look up the specs of the amp and of the headphones you want to drive and compare them...

 

UHA-6 Mk II Max output power (1% THD):

  • 30 mW into 16 ohms
  • 55 mW into 32 ohms
  • 110 mW into 100 ohms
  • 55 mW into 300 ohms
 
Sennheiser HD 800:
  • Nominal impedance 300 Ω
  • Sound pressure level (SPL) 102 dB (1kHz/1Vrms)
 
Beyerdynamics T1:
  • Headphone impedance 600 ohms
  • Nominal sound pressure level 102 dB

Theoretically, with a max output power of 55mW into 300ohms (1%THD), the leckerton can drive the Senn hd800 with its 300 ohms impedance to around 114dBspl

with the beyerT1 (600ohms), 114dB requires around 26mW..but the power output at 600ohms is not listed...as is the case for audeze lcd2.2 (60ohms/91dbpermW) which requires 200mW for 114dBspl

 

114 dB is significantly loud and can cause ear damage depending on the duration of exposure to such volumes...however the average volume level for most modern music is much lesser except for brief instances where the instantaneous volume shoots up...recommended safe listening levels are around 80-85dB so theoretically the power provided by leckerton should be good enough for the hd800...85dBspl for the hd800 requires  0.07mW

 

however, im not sure how this translates into personal listening experience...there are other factors than just the power output and the volume levels achieved...so we need comments from users


Edited by Aravind - 12/9/12 at 8:03am
post #1123 of 2192
Quote:
Originally Posted by Aravind View Post

Theoretically, with a max output power of 55mW into 300ohms (1%THD), the leckerton can drive the Senn hd800 with its 300 ohms impedance to around 114dBspl

with the beyerT1 (600ohms), 114dB requires around 26mW..but the power output at 600ohms is not listed...as is the case for audeze lcd2.2 (60ohms/91db/mW) which requires 200mW for 114dBspl

 

114 dB is significantly loud and can cause ear damage depending on the duration of exposure to such volumes...however the average volume level for most modern music is much lesser except for brief instances where the instantaneous volume shoots up...recommended safe listening levels are around 80-85dB so theoretically the power provided by leckerton should be good enough for the hd800...85dBspl for the hd800 requires  0.07mW

 

however, im not sure how this translates into personal listening experience...there are other factors than just the power output and the volume levels achieved...so we need comments from users

 

I just want to not have a wisper with classical tracks. The idea was just to know if I could try the HD800, not to use it daily with it.

 

To get an idea of my usual listening volume, I'm used to use the ety HF5 with sansa fuse below 1/4 of the volume bar (I don't have any idea of how many dBspl this translates to), even with classical tracks, and even lower with rock/metal tracks. Sometimes I go a bit higher but surely not much.

 

I usualy hear music in relatively low volumes, at least when compared to my friends, I don't know if this helps.

post #1124 of 2192
Quote:
Originally Posted by kskwerl View Post


Please do, I take it its gonna have to be in high gain

 

I think the LCD-3 sounds ok with the leckerton. Not as good as with the HD800s.  Maybe because its an ortho.  

 

The Vocals and mids are pretty good but it has less bass and control.  Doesnt have the sharpness to the drums.  The Vocals have less emotion, but dont seem empty or hollow.  The lack of bass feels like it brings the vocals forward more.  Which is kind of fun.  I like listening to vocals.  So leckerton is decent and its only about 300 dollars.  Not as good compared to a Liquid fire or something that will properly power it.  Volume is more then loud enough.. Was only about 10-11 o'clock on high gain depending on the song.

 

I think the leckerton is a great little amp.  I can enjoy the sound out of a leckerton if I want to take the LCD-3 somewhere.


Edited by Hiyono - 12/9/12 at 8:33pm
post #1125 of 2192
Quote:
Originally Posted by Hiyono View Post

 

I think the LCD-3 sounds ok with the leckerton. Not as good as with the HD800s.  Maybe because its an ortho.  

 

The Vocals and mids are pretty good but it has less bass and control.  Doesnt have the sharpness to the drums.  The Vocals have less emotion, but dont seem empty or hollow.  The lack of bass feels like it brings the vocals forward more.  Which is kind of fun.  I like listening to vocals.  So leckerton is decent and its only about 300 dollars.  Not as good compared to a Liquid fire or something that will properly power it.  Volume is more then loud enough.. Was only about 10-11 o'clock on high gain depending on the song.

 

I think the leckerton is a great little amp.  I can enjoy the sound out of a leckerton if I want to take the LCD-3 somewhere.

Thanks for posting back on that! Cheers :D

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Head-Fi.org › Forums › Equipment Forums › Portable Headphone Amps › New Leckerton UHA-6S MKII Portable Headphone Amplifier Announced (Update User Impressions Added July 20th 2012)