Go Back   Home > Forums > Amplifiers > Pass Labs
Home Forums Rules Articles Store Gallery Blogs Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Pass Labs This forum is dedicated to Pass Labs discussion.

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 12th March 2004, 09:24 AM   #1
diyAudio Member
 
Join Date: Mar 2004
Location: dd
Post class A phoneamp

Click the image to open in full size.

it's andiy phoneamp
  Reply With Quote
Old 12th March 2004, 04:14 PM   #2
uli is offline uli  Austria
diyAudio Member
 
Join Date: Dec 2002
Location: Vienna, Austria
Thumbs up great pic

looks phantastic,

any circuitry?????


Uli
__________________

'Jazz is not dead, it just smells funny' F.Zappa
  Reply With Quote
Old 13th March 2004, 07:23 AM   #3
diyAudio Member
 
Join Date: Mar 2004
Location: dd
Default THE SCH

Click the image to open in full size.
  Reply With Quote
Old 14th March 2004, 09:51 AM   #4
diyAudio Member
 
Nickolas K.'s Avatar
 
Join Date: Apr 2002
Location: Athens
Looks impressive but I don't see an MC stage; is there one?

Nick
__________________
Is this phase one of Lumpy Gravy?
  Reply With Quote
Old 14th March 2004, 10:58 AM   #5
diyAudio Member
 
analog_sa's Avatar
 
Join Date: Aug 2002
Location: Sofia
Quote:
I don't see an MC stage
As this is probably not a phono but a headphone amp

Otoh there are a few interesting bits and pieces at the web site - looks like a lot of high quality pcbs to make your own Krell, Accuphase etc. Would make good contibution to the IP thread

Evilspirit, please explain in english what exactly do you offer. You may be surprised at the number of non-pc-correct forum members that will be interested. Me for starters.
  Reply With Quote
Old 14th March 2004, 02:16 PM   #6
wenye is offline wenye  China
diyAudio Member
 
Join Date: Jan 2004
Location: GZ. GD.
Send a message via MSN to wenye
Hi sa, Nick,

You're correct. It's a headphone amp which is designed to drive high impedance headphones such as Sennheser HD-600 and so on. And, at facts it is optimized to drive Sennheser HD-600

When the bandwidth limit circuits (such as input low pass filter)were bypassed, this headphone amp has up to around 18MHz -3dB bandwidth!

Each stage of the headphone amp is designed to working at class A status.

Another especially design is DC Sevro circuit. It's a patented small feed-back loop dc sevro circuit. More stabilization, higher performance, lower negative affect to the amplifier circuit.
  Reply With Quote
Old 14th March 2004, 02:45 PM   #7
diyAudio Member
 
Brian Donaldson's Avatar
 
Join Date: Jan 2003
Location: Texas, Love it or leave it
I think is't Phone as in headphone and not phono.
  Reply With Quote
Old 15th March 2004, 08:22 PM   #8
diyAudio Member
 
Nickolas K.'s Avatar
 
Join Date: Apr 2002
Location: Athens
Default Brian

Rite,
I need new glasses!
Hope I don't need new ears too!
Nick
__________________
Is this phase one of Lumpy Gravy?
  Reply With Quote
Old 22nd June 2004, 02:17 AM   #9
diyAudio Member
 
Join Date: Mar 2004
Location: dd
my preamp

Click the image to open in full size. Click the image to open in full size.
  Reply With Quote

Reply


Hide this!Advertise here!

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
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
Can a Class AB PP amp be said to be operating in Class A at low signal levels? ray_moth Tubes / Valves 19 23rd January 2009 07:52 PM
How about a round-up of Class A kit power amps, or collectable vintage class A? Brisso57 Solid State 4 14th February 2007 10:30 AM
Class D Vs Class I (Balanced Current Amplifier) rmsaudio Class D 28 29th September 2006 07:03 AM
JHL Class A ,Higher power circuit, 40W Class A nicolas888 Solid State 8 13th April 2006 04:27 PM


New To Site? Need Help?

All times are GMT. The time now is 04:54 AM.

Page generated in 0.09273 seconds (79.38% PHP - 20.62% MySQL) with 10 queries

Copyright ©1999-2012 diyAudio