Go Back   Home > Forums > Amplifiers > Tubes / Valves

Tubes / Valves All about our sweet vacuum tubes :) Threads about Musical Instrument Amps of all kinds should be in the Instruments & Amps forum

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 8th April 2012, 07:54 AM   #21
diyAudio Member
 
Join Date: Apr 2010
I installed a socket onto the filter caps in an amplifier, so that I could install a bypass cap there - in real time. I plugged it in out - during listening. Did a very extensive test.

I could not hear any difference at all. Absolutely nothing.

Before that, I used to install them blindly, and then just assume it made a difference. I really thought I could hear it. Obviously I was deluding myself.
  Reply With Quote
Old 8th April 2012, 08:12 AM   #22
diyAudio Member
 
Shoog's Avatar
 
Join Date: Aug 2002
Location: Eire
Quote:
Originally Posted by Coconuts 500 View Post
I installed a socket onto the filter caps in an amplifier, so that I could install a bypass cap there - in real time. I plugged it in out - during listening. Did a very extensive test.

I could not hear any difference at all. Absolutely nothing.

Before that, I used to install them blindly, and then just assume it made a difference. I really thought I could hear it. Obviously I was deluding myself.
Good to hear.
What type of amp was it applied to ? I have my doubts that it would make enough of a difference in a gNFB amp where the sort of changes would be smoothed out. My amps use local feedback.

Shoog
  Reply With Quote
Old 8th April 2012, 09:34 AM   #23
AJT is offline AJT  Philippines
diyAudio Moderator
 
AJT's Avatar
 
Join Date: May 2003
Location: Palatiw, Pasig City
Quote:
Originally Posted by Coconuts 500 View Post
I installed a socket onto the filter caps in an amplifier, so that I could install a bypass cap there - in real time. I plugged it in out - during listening. Did a very extensive test.

I could not hear any difference at all. Absolutely nothing.

Before that, I used to install them blindly, and then just assume it made a difference. I really thought I could hear it. Obviously I was deluding myself.
glad to hear that.....this is a big amp that i did several months back.....

Click the image to open in full size.

this is the power supply filter bank composed of 12 x 2200ufd/450volt computer grade caps, no bypass caps were used....
Click the image to open in full size.
  Reply With Quote
Old 8th April 2012, 03:47 PM   #24
diyAudio Member
 
Join Date: Mar 2012
McIntosh used bypass caps back in the day and they were the biggest bunch of hard-core hard numbers guys around. They also didn't have modern caps with modern high frequency capability..

As for listening tests, if someone tells me they improve things, I'd believe him. OTOH, if someone says it hurts the sound somehow - I'd have a hard time buying that.

These are 58 cent parts.
  Reply With Quote
Old 8th April 2012, 05:21 PM   #25
dgta is offline dgta  United States
diyAudio Member
 
Join Date: May 2011
Quote:
Originally Posted by Ronsonic View Post
As for listening tests, if someone tells me they improve things, I'd believe him.
Ha ha, I'd believe him too IF he can pick it out in an ABX test
  Reply With Quote
Old 8th April 2012, 05:25 PM   #26
diyAudio Member
 
Shoog's Avatar
 
Join Date: Aug 2002
Location: Eire
I personally wouldn't take anyones word for it - I would try it myself and form my own opinion.

Cheers

Shoog
  Reply With Quote
Old 8th April 2012, 05:59 PM   #27
dgta is offline dgta  United States
diyAudio Member
 
Join Date: May 2011
I wouldn't take MY OWN word for it unless I could pass an ABX test
Get my drift?
  Reply With Quote
Old 8th April 2012, 06:24 PM   #28
diyAudio Member
 
directdriver's Avatar
 
Join Date: Nov 2005
If I have to strain myself to hear a difference then it's not worth my time, since that's not how I listen to music. If it's not audibly significant, I don't sweat it. I chase pleasure not perfection.

I am not a golden ear nor do I want to so I will let someone else to enjoy the AB test while I go spin another record.
  Reply With Quote
Old 8th April 2012, 10:47 PM   #29
AJT is offline AJT  Philippines
diyAudio Moderator
 
AJT's Avatar
 
Join Date: May 2003
Location: Palatiw, Pasig City
Quote:
Originally Posted by dgta View Post
I wouldn't take MY OWN word for it unless I could pass an ABX test
Get my drift?
when other guys listen to my amps, i keep quiet and let them have their say, i value their comments as a means to improve my amps.........or to confirm what i already knew.....

most of the time, their issues were about cosmetics.....
  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
bypass caps for bypassing mylar caps? crippledchicken Multi-Way 4 27th February 2008 04:24 AM
Just one big filter cap or more smaller filter caps ... beppe61 Power Supplies 2 18th July 2006 05:46 PM
Bypassing bias stage with caps EchoWars Solid State 5 21st November 2003 08:16 AM
smaller caps punchpeanut Chip Amps 0 27th August 2003 01:59 PM
many smaller caps Vs big ones Christian Solid State 12 2nd March 2002 03:20 PM


New To Site? Need Help?

All times are GMT. The time now is 11:54 AM.


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