Best Valve pre-amp match for ME 550 amp - Page 16 - diyAudio
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 18th January 2013, 09:23 PM   #151
diyAudio Member
 
Join Date: Jun 2007
Passive preamp, or the lightspeed
  Reply With Quote
Old 18th January 2013, 09:58 PM   #152
diyAudio Member
 
Join Date: Feb 2010
Quote:
Originally Posted by TigerScent View Post
"...The real pleasure in working with a tube preamp is the sound. Not the sound that comes from a carefully tuned amplifier with perfect input levels and no measurable output distortion — for that, you’d be better off with a solid-state amp. Where a tube amplifier comes to life is when the signal from a guitar or other instrument is heavily distorted – approaching 30% total harmonic distortion or more. Whereas solid-state amps sound harsh when driven to this level of distortion, tube amps have a ‘warm’ sound that’s impossible to exactly replicate with modern electronics. I have a couple solid-state modeling amps that come close to the tube sound, but in a side-by-side experiment, there’s no question that the tube amp provides the best sound. If you’re into bass or guitar and searching for your tone, you’ll more likely find it in a tube amp than in a more technologically sophisticated (and typically cheaper) solid-state amp."

Nuts And Volts
Absolute, unmitigated twaddle. You have fallen into the classic trap of assuming that:

Valves = good
SS = bad.

This is just as stupid as saying:

SS = good
Valves = bad.

There are good valve preamps and shockers. There are good SS preamps and shockers. Just because a product has a valve inside, there is no guarantee that it will be good (or bad).
  Reply With Quote
Old 18th January 2013, 10:20 PM   #153
diyAudio Member
 
Join Date: Mar 2006
Location: Australia
Quote:
Originally Posted by Zaphod Beeblebrox View Post
Absolute, unmitigated twaddle. You have fallen into the classic trap of assuming that:

Valves = good
SS = bad.

This is just as stupid as saying:

SS = good
Valves = bad.

There are good valve preamps and shockers. There are good SS preamps and shockers. Just because a product has a valve inside, there is no guarantee that it will be good (or bad).
Just generally speaking ... assuming they are good; and there are always exceptions and products that stand out on either side...
  Reply With Quote
Old 18th January 2013, 10:56 PM   #154
diyAudio Member
 
Join Date: Mar 2006
Location: Australia
Quote:
Originally Posted by lordearl View Post
Passive preamp, or the lightspeed
Looks like a good idea from a purist perspective. Caveat is high input impendance on the amp side ie: 50K. The ME550 is very low input impedance.

In addition, the assumption is that the source signal-processor and/or pathway is ideal. This is not always the case. I have found a valve buffer to 'improve' the source signal in some instances, but in particular being placed in the pathway of pre-amp to amp in general SS scenarios with some amplifiers, improving the sound.

I did have a CD player once, the NAD5000, which had variable outputs, and I directly connected them to the ME550 amp at the time. The sound was quite dynamic and clean. I daresay however, that an improvement would have been made had a valve buffer been placed in the pathway...I still have that CD player, and will attempt to repair it and experiment...
  Reply With Quote
Old 19th January 2013, 03:10 AM   #155
diyAudio Member
 
Join Date: Mar 2006
Location: Australia
I can't stop listening to the simple Matisse valve buffer as preamp. It sounds better the more I listen to it. This one is brand new, and its sounding smoother the more I play it, with a 'live realism'.... (I have 2 - this one is stock std)

Im wondering if 'the simpler the better' might be the case. Its such a basic circuit. How can it sound so good?

The Jadis JP200 has good feedback comments : I am looking forward to implementing it with some audio transformers to match impedance. I don't believe I will be disappointed. Its actually a 2.5mm thick pcb.

Im totally converted to the merits of the valve sound (where well designed) - in the context of hybrid to SS amp.
The modified (interim) TC-750 SS phono-preamp (In use with NAD T773) rolled-over with Elna Silmic II caps
- I am replacing it with a valve phono pre-amp down the track - and will have it as a spare (always handy).

I am yet to experiment with valve main amps, but that is a long way off - Im pleasantly surprised with this combo.

Last edited by TigerScent; 19th January 2013 at 03:37 AM.
  Reply With Quote
Old 19th January 2013, 06:42 AM   #156
diyAudio Member
 
Join Date: Mar 2006
Location: Australia
...here is a link to considerable dialogue regarding the 'Matisse style' Guanzo Chinese valve buffer I am using as a preamp from CD player to ME550 - with surprising results...

"Say Hello! to my new little friend" - AudioKarma.org Home Audio Stereo Discussion Forums
  Reply With Quote
Old 22nd January 2013, 03:45 PM   #157
diyAudio Member
 
Join Date: Mar 2006
Location: Australia
I need to be on some acreage somewhere --- having neighbours too close is not really ideal ...
  Reply With Quote
Old 23rd January 2013, 04:49 AM   #158
diyAudio Member
 
Join Date: Mar 2006
Location: Australia
Just wondering what the best value low price tubes would be to get, ie: 12AX7

I was thinking the standard Tung-sol seem best, although they dont light up that version. Is there one that is refined with high gain that also nicely lights up?
  Reply With Quote
Old 23rd January 2013, 05:34 AM   #159
diyAudio Member
 
MrRogers's Avatar
 
Join Date: Dec 2009
Quote:
Originally Posted by TigerScent View Post
Just wondering what the best value low price tubes would be to get, ie: 12AX7
Psvane 12AX7

Quote:
Originally Posted by TigerScent View Post
Is there one that is refined with high gain that also nicely lights up?
Your confusing them with Cuban cigars.
  Reply With Quote
Old 23rd January 2013, 09:17 PM   #160
diyAudio Member
 
Join Date: Mar 2006
Location: Australia
Quote:
Originally Posted by MrRogers View Post
Psvane 12AX7
Where can you get them at a low price?
  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
Best type of pre-amp for valve/tube power amp elgee Tubes / Valves 10 11th November 2011 11:40 AM
any advice on how to match a headphone level output to valve amp input levels? mondogenerator Headphone Systems 1 18th December 2009 04:08 AM
what guideline to match pre and amp? milen007 Tubes / Valves 5 2nd June 2008 06:58 AM
Valve Pre Amp & Class D Power Amp Puffin Tubes / Valves 7 16th June 2006 05:41 PM


New To Site? Need Help?

All times are GMT. The time now is 08:50 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