MOSFET follower headphone amplifier - Page 13 - diyAudio
Go Back   Home > Forums > Amplifiers > Headphone Systems

Headphone Systems Everything to do with Headphones

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 18th July 2011, 02:43 PM   #121
EUVL is offline EUVL  Europe
diyAudio Member
 
Join Date: Oct 2003
I never say anything like my design is better than others.

But for those few who bothered to build one, they all love it.
Especially if you have a low impedance can (like Grado or AKG), which the HD555 probably isn't.

Not that it will sound bad on a 555, but you are not using its current delivery capability to the full.


Patrick
  Reply With Quote
Old 18th July 2011, 05:20 PM   #122
diyAudio Member
 
Join Date: Apr 2002
What is the impedance on the Grado or AK? Senn HD555 is around 50R.
  Reply With Quote
Old 20th July 2011, 06:58 AM   #123
diyAudio Member
 
Join Date: Mar 2004
Location: Jakarta
@Dr.H: Grado usually is 32ohm. AKG depend on models, 62ohm to 120ohm.

HD555 at 50ohm should be fine too... HD555 (and most Sennheiser phones) is not a current hungry phones

It is not the impedance itself, but the combination of low impedance + lower sensitivity that makes Grado and AKG need more current to really sing. While Sennheiser phones are usually highly sensitive (+ high impedance on the HD600 and above models)
  Reply With Quote
Old 20th July 2011, 07:01 AM   #124
diyAudio Member
 
Join Date: Mar 2004
Location: Jakarta
Copied my question from here to here...

@Patrick: sorry, for the very basic questions:
1. is this a unity gain amp (or not)?
2. could I put a potentiometer in the input?
3. what is the [maximum] acceptable preceding stage (source or pre-amp) impedance before the DAO?

thanks,
David
  Reply With Quote
Old 20th July 2011, 04:11 PM   #125
EUVL is offline EUVL  Europe
diyAudio Member
 
Join Date: Oct 2003
Answered at the other place.


Patrick
  Reply With Quote
Old 5th August 2012, 08:54 PM   #126
tpsorin is offline tpsorin  Romania
diyAudio Member
 
Join Date: Jun 2005
Location: Timisoara
How will this amp compare to commercial amps? I am thinking of lower price commercial amps (<150USD).

I plan to use it with HD600. Is it worth bothering with it if i have Xonar Essence ST?

Thanks!
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
mu-follower hybrid headphone amplifier rjm Headphone Systems 12 4th January 2010 09:45 AM
headphone amplifier = tube + mosfet sparkle Headphone Systems 25 23rd June 2009 03:52 PM
single mosfet headphone amplifier question Jean Headphone Systems 8 24th June 2007 12:50 AM
darlington/mosfet in emittor follower / headphone amp svokke Headphone Systems 11 8th June 2005 07:19 PM
Mu follower, headphone amp? alk Headphone Systems 6 29th July 2004 05:23 AM


New To Site? Need Help?

All times are GMT. The time now is 04:58 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2