Gainclone Impedance - diyAudio
Go Back   Home > Forums > Amplifiers > Chip Amps

Chip Amps Amplifiers based on integrated circuits

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 24th July 2003, 02:37 PM   #1
diyAudio Member
 
Join Date: May 2002
Default Gainclone Impedance

I have a passive preamp already which is best when matched to a power amp with >50k impedance. What is the impedance of a gainclone and can it be raised to >50k if necessary?

Your advice would be much appreciated
  Reply With Quote
Old 24th July 2003, 04:15 PM   #2
diyAudio Member
 
analog_sa's Avatar
 
Join Date: Aug 2002
Location: Sofia
Yes it can. But not very suitable in the 'inverted' mode which many prefer soundwise. In the standard non-inverting mode there are absolutely no problems. In the inverting mode a 50k input resistance means at least 1mohm fb resistor for a minimum gain of x20 and 1.5Mohm for a more conventional gain of x30. No idea how stable the offset will be. Of course there will be slightly more noise as well. You're in a bit of a 'catch 22' situation here.

cheers
peter
  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
Gainclone with negative output impedance Circlotron Chip Amps 23 15th December 2012 02:21 AM
Impedance rate VS impedance stability TomatoBangBang Tubes / Valves 6 4th September 2008 10:46 PM
Freebird + Gainclone = "integrated" gainclone? bikehorn Chip Amps 9 5th January 2006 03:07 PM
Need help understanding transformer impedance ratios and impedance matching percy Tubes / Valves 5 28th February 2005 08:35 PM
Need enlightments on GainClone input impedance and volume control Elkaid Chip Amps 10 8th April 2004 07:35 PM


New To Site? Need Help?

All times are GMT. The time now is 11:30 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