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

Chip Amps Amplifiers based on integrated circuits

This is not just another gainclone
This is not just another gainclone
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 21st October 2003, 02:26 AM   #2191
moe29 is offline moe29  United States
diyAudio Member
 
moe29's Avatar
 
Join Date: Dec 2002
Location: Florida
Send a message via AIM to moe29 Send a message via Yahoo to moe29
a little more info on that last picture Peter?

is that one of thouse transformer pre-amps?

thanks
  Reply With Quote
Old 21st October 2003, 02:33 AM   #2192
purplepeople is offline purplepeople  Canada
diyAudio Member
 
purplepeople's Avatar
 
Join Date: Mar 2003
Location: London, Ontario, Canada
Peter, you have a sickness, man! Your stuff is so good that I wouldn't be surprised if the fabs were paying you to keep it off the market.

Kudos, yet again.

:)ensen.
__________________
Those who claim to be making history are often the same ones repeating it.
  Reply With Quote
Old 21st October 2003, 02:35 AM   #2193
Peter Daniel is offline Peter Daniel  Canada
diyAudio Member
 
Peter Daniel's Avatar
 
Join Date: Jul 2002
Location: Toronto, Canada
This is not just another gainclone Send a message via AIM to Peter Daniel
It's still not finished, just hooked it up temporarily, but my first impression is in accordance what Kuei said on Audioasylum:
Quote:
http://www.audioasylum.com/audio/tweaks/messages/54440.html

I'm sure this passive pre has some sort of sound or some kind of reduction in transparency (it would have to for all the solder joins and connectors plus switches), but I can't nail it down, at least not with CD as source. The only way to describe the "sound" is to steal a phrase from Romy the Cat - this unit is INSULTINGLY NEUTRAL.

….. This "Preamp" just gets out of the way of the music….

If you need all the audiophool drivel, I noticed a much more focused soundscape with increased extension into all directions. Individual sounds of instruments (like the bow scraping the strings, the resonating body of the Violin and the slight handling noises on the neck now occupy distinct sonic spaces, whereas I'm used to these sounds being more merged. Don't get me wrong, they have not become disjointed, but simply clearer.

….In terms of downward dynamic range (a term coined by Allan Wright) the system seems to have acquired an extra 6 - 8db of resolution, meaning that much in recordings that was previously buried and compressed by resistively attenuated linestages (passive or active) is now audible.
I'm quite impressed by that transformer volume stage. Will post more info tomorrow.
__________________
To order kits contact me through forum mail.
  Reply With Quote
Old 21st October 2003, 02:48 AM   #2194
Steve Eddy is offline Steve Eddy  United States
diyAudio Member
 
Steve Eddy's Avatar
 
Join Date: Sep 2002
Location: Sacramento, CA
Quote:
Originally posted by fdegrove
And you never even considered telling our fellow member SE this ???
Fellow member SE has been well aware of this for more than two decades already.

se
  Reply With Quote
Old 21st October 2003, 02:50 AM   #2195
purplepeople is offline purplepeople  Canada
diyAudio Member
 
purplepeople's Avatar
 
Join Date: Mar 2003
Location: London, Ontario, Canada
ROFL

:)ensen.
__________________
Those who claim to be making history are often the same ones repeating it.
  Reply With Quote
Old 21st October 2003, 02:55 AM   #2196
Peter Daniel is offline Peter Daniel  Canada
diyAudio Member
 
Peter Daniel's Avatar
 
Join Date: Jul 2002
Location: Toronto, Canada
This is not just another gainclone Send a message via AIM to Peter Daniel
A clamp in a CD player is a magnet as well.
__________________
To order kits contact me through forum mail.
  Reply With Quote
Old 21st October 2003, 02:58 AM   #2197
Steve Eddy is offline Steve Eddy  United States
diyAudio Member
 
Steve Eddy's Avatar
 
Join Date: Sep 2002
Location: Sacramento, CA
Quote:
Originally posted by Peter Daniel
A clamp in a CD player is a magnet as well.
Yup. But if its field is symmetrical about its north/south poles and it spins on its polar axis, it shouldn't cause any problems.

se
  Reply With Quote
Old 21st October 2003, 03:04 AM   #2198
agent.5 is offline agent.5  United States
diyAudio Member
 
Join Date: Aug 2003
Location: San Francisco, CA
Nice TVC build. Just wondering if you need some EMI shielding for all the exposed wires.
  Reply With Quote
Old 21st October 2003, 03:14 AM   #2199
Peter Daniel is offline Peter Daniel  Canada
diyAudio Member
 
Peter Daniel's Avatar
 
Join Date: Jul 2002
Location: Toronto, Canada
This is not just another gainclone Send a message via AIM to Peter Daniel
They will be shielded with aluminum plates.
__________________
To order kits contact me through forum mail.
  Reply With Quote
Old 21st October 2003, 03:37 AM   #2200
Steve Eddy is offline Steve Eddy  United States
diyAudio Member
 
Steve Eddy's Avatar
 
Join Date: Sep 2002
Location: Sacramento, CA
Quote:
Originally posted by Peter Daniel
They will be shielded with aluminum plates.
That won't do any good for shielding against magnetic fields. At least not at power line frequencies. It'd be about as good as that acrylic.

se
  Reply With Quote

Reply


This is not just another gaincloneHide 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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Freebird + Gainclone = "integrated" gainclone? bikehorn Chip Amps 9 5th January 2006 04:07 PM
JLH v Gainclone? Jezz-the-Fezz Solid State 5 12th December 2005 01:08 PM
Big gainclone steven344 Chip Amps 10 23rd November 2005 08:58 PM


New To Site? Need Help?

All times are GMT. The time now is 04:28 PM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.00%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Copyright ©1999-2018 diyAudio
Wiki