high pass - diyAudio
Go Back   Home > Forums > Commercial Sector > Vendor Forums > Tubelab

Tubelab Discussion and support of Tubelab products, prototypes and experiments

Reply
 
Thread Tools Search this Thread
Old 16th August 2011, 07:14 PM   #1
evanc is offline evanc  United States
diyAudio Member
 
Join Date: Sep 2009
Location: New Jersey. About 1 hour from NYC and 1 min. from the beach
Default high pass

I've been listening to my tubelab SE for a while now and to say this thing sounds great is an understatement.

I have been using a ss amp to supplement the lowest frequencies, about 100 hz down. I tried a pllxo before the tubelab amp to filter out the lowest frequencies and did not like the results. Maybe the cheap caps I used were the culprit.

I am thinking of just changing the coupling caps in the amp for a 0.1 uf caps. Is this a valid idea? It would still allow the lowest frequencies to get to the input tube, but would leave out the extra caps that a pllxo would add.
Thanks as always..Evan
__________________
http://www.evancotler.com
  Reply With Quote
Old 16th August 2011, 11:24 PM   #2
diyAudio Member
 
Join Date: Apr 2007
What you want is line level crossover. There are powered ones and passive ones you can buy or build.
Linkwitz-Riley Electronic Crossover
TLS.org | Passive Line-Level Crossover
  Reply With Quote
Old 17th August 2011, 12:25 AM   #3
evanc is offline evanc  United States
diyAudio Member
 
Join Date: Sep 2009
Location: New Jersey. About 1 hour from NYC and 1 min. from the beach
I ran my system active for some time and feel that I like the sound better when I use my active crossover for only the lowest frequencies, and let the signal go right to the main amp. I tried a first order passive line level crossover and did not love the sound. Again maybe this was due to me using a cheap film cap. Going the less is more route it seems if I could attenuate the lowest frequencies by adjusting the value of a part that is all ready in the signal path it would be better then adding another capacitor to the signal path....
__________________
http://www.evancotler.com
  Reply With Quote
Old 17th August 2011, 03:47 PM   #4
diyAudio Member
 
Join Date: Apr 2007
I doubt modern caps are that bad at low price. I would be more concerned with achieving the proper crossover slope than the price of caps. If it takes second or third order to do it, then do it. It will hurt the sound more by not getting it right.
  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
Combine high pass tweeter with mids without low pass -Need help lessNoise Multi-Way 2 3rd August 2011 11:34 AM
To High Pass or Not High Pass?......What a Question! mayhem13 Multi-Way 2 23rd November 2009 11:16 PM
DIY Low Pass and Mid/High Pass (Bass Blocking) Filters runslikealpaca Everything Else 1 19th June 2009 11:59 PM
high gain 2nd order high pass active filter topology sreten Solid State 21 23rd March 2006 02:26 AM
variable Low-Cut, High-Pass & High-Cuts TobWen Solid State 3 14th September 2004 10:40 PM


New To Site? Need Help?

All times are GMT. The time now is 03:04 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