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

Class D Switching Power Amplifiers and Power D/A conversion

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 22nd August 2006, 09:47 PM   #1
Solve is offline Solve  Sweden
diyAudio Member
 
Solve's Avatar
 
Join Date: May 2006
Default T-Amp and Tube Preamp?

Anyone have any experiance?
Still think it needs a bit warmth.
Is there any cheap projects out there that could work and sound good?
  Reply With Quote
Old 22nd August 2006, 11:47 PM   #2
diyAudio Member
 
Join Date: Jul 2004
Location: Seattle USA
"warmth"?

http://www.bumwine.com/compare.html
  Reply With Quote
Old 23rd August 2006, 12:06 AM   #3
Solve is offline Solve  Sweden
diyAudio Member
 
Solve's Avatar
 
Join Date: May 2006
Thanks for the serious answer in this topic...









  Reply With Quote
Old 23rd August 2006, 12:49 AM   #4
Davet is offline Davet  United States
diyAudio Member
 
Join Date: Mar 2004
Location: Reston, Virginia (surburb of Wash, DC)
Default Tube Preamp

I agree that the T-amp need a liitle warmth. I have my modfied SI T-amp connected to a Bottlehead Foreplay tube preamp. The tube preamp provides just the proper balance for this T-amp.

My 41HZ Amp6 does not really need the preamp. The Amp6 sounds warm enough without a preamp. It is a matter of taste.
__________________
Davet
  Reply With Quote
Old 23rd August 2006, 06:10 AM   #5
Puffin is offline Puffin  United Kingdom
diyAudio Member
 
Join Date: Feb 2006
Location: U.K
Solve. Do a search under "puffin" and you will find some infomation about this that I posted some time ago.
  Reply With Quote
Old 23rd August 2006, 06:34 AM   #6
Solve is offline Solve  Sweden
diyAudio Member
 
Solve's Avatar
 
Join Date: May 2006
Puffin.I did a search and found some parts about tubes but not to specific?
Any recomendations out there?
Build your own?
  Reply With Quote
Old 23rd August 2006, 08:08 PM   #7
Solve is offline Solve  Sweden
diyAudio Member
 
Solve's Avatar
 
Join Date: May 2006
Default Tube

This one looks cool!
http://www.autocostruire.it/modules....rticle&sid=103
  Reply With Quote
Old 23rd August 2006, 08:27 PM   #8
BWRX is offline BWRX  United States
diyAudio Moderator Emeritus
 
Join Date: Jan 2005
Location: Pennsylvania
Change the input coupling caps (good mod) and slap on some aircore inductors and you'll probably get the warmth (a.k.a. distortion) you're after.
__________________
Brian
  Reply With Quote
Old 24th August 2006, 01:53 PM   #9
irss is offline irss  Lithuania
diyAudio Member
 
Join Date: Mar 2005
Location: Vilnius
BWRX, in your opinion, t-amp does not require any kind of tube preamp?

what about the need for extra inputs? Somehow I don't find this option very attractive:

http://www.tnt-audio.com/ampli/t-preamp_e.html
  Reply With Quote
Old 24th August 2006, 03:32 PM   #10
BWRX is offline BWRX  United States
diyAudio Moderator Emeritus
 
Join Date: Jan 2005
Location: Pennsylvania
I don't think it needs a tube based preamp, but they can certainly sound different with a preamp. Whether or not it sounds better is up to you to decide. I've used a very simple buffered volume control setup with a couple of TL072s from TI and think it sounds nice. I also tried NE5532 from Philips but it had a slightly different character that wasn't as pleasing to me.

I don't use my Tripath based amp anymore because the little D10.1 modules based on the MP7720 sound better I'd imagine part of that is due to the DC coupling (no input coupling caps). In the near future I'm looking to build an active crossover (with volume control) to drive the little modules, or any other amp for that matter.
__________________
Brian
  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
FA: Eico HF-85 Tube Preamp & HFT-90 Tube Tuner joe-electro Swap Meet 0 31st May 2009 04:14 PM
Tube Preamp Popping on Source Input Change (?) / 6DJ8 Preamp On Chip Amps MartyM Tubes / Valves 3 16th October 2008 04:52 AM
tube preamp using submini tube unclejed613 Tubes / Valves 11 19th August 2007 07:14 PM
Is it possible to get "tube sound" with just a tube preamp and chipamp output? Spasticteapot Instruments and Amps 43 15th May 2006 05:28 PM
need diy tube preamp (line-stage) recommendation and general tube advice Musiclover4 Tubes / Valves 15 24th November 2005 01:19 AM


New To Site? Need Help?

All times are GMT. The time now is 02:26 PM.

Page generated in 0.10263 seconds (77.84% PHP - 22.16% MySQL) with 10 queries

Copyright ©1999-2012 diyAudio