ZV9 upper limits??? - diyAudio
Go Back   Home > Forums > Amplifiers > Pass Labs
Home Forums Rules Articles diyAudio Store Gallery Wiki Blogs Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Pass Labs This forum is dedicated to Pass Labs discussion.

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
Thread Tools Search this Thread
Old 26th December 2008, 04:54 PM   #1
diyAudio Member
sandyhooker's Avatar
Join Date: Dec 2005
Location: Arizona
Default ZV9 upper limits???

I have put off building this ZEN version due to Babo influence(V5) and subsequent F5 (waiting for transformer). Have P.Daniel's boards waiting along with Loveltecs ...still should I do this ...decisions ,decisions!!!! The wattage limitations cause concern. Are we talking 10watts or what?? Anyone care to comment??? Will the urge never cease???
  Reply With Quote
Old 26th December 2008, 05:14 PM   #2
flg is offline flg  United States
diyAudio Member
flg's Avatar
Join Date: Jul 2005
Location: North East
10 Watts? Sounds about right. Maybe a Bi-Amped upper end, w/sub-W or for main Ch W/high eff speakers?
I have done quite a bit of playing around with the Iq/Rsource/Vds and basic DC-AC measurements. The LU1014 device seems to respond properly without ever blowing one up yet. Up to 9W without problems. No comments on the sound though. Wich means, no critical chaising of the elusive distortion canceling/load line curve Santa touch's on in the article...
I've had no trouble getting encouraging results from a 350mA Iq preamp circuit that operates well into the MHz, ie; big CCBOZ, to a 3A PowerAmp circuit, ZV9 on steriods.
"It was the perfect high end audio product: Exotic, inefficient, expensive, unavailable, and toxic." N.P.
  Reply With Quote
Old 26th December 2008, 06:29 PM   #3
The one and only
Nelson Pass's Avatar
Join Date: Mar 2001
The F3 clips at 15 watts, but this is simply a limit of the power supply
and heat sinks.

Conceptually you could build a quite powerful version. The dissipation limit
for the JFET is supposed to be 69 watts, probably submerged in liquid
nitrogen, but there's no reason you can't run them higher than the 5 watts
or so seen in ZV9 and F3. Also, there's no reason you can parallel them.

  Reply With Quote
Old 26th December 2008, 09:03 PM   #4
Magura is offline Magura  Denmark
diyAudio Member
Magura's Avatar
Join Date: Oct 2003
Location: Denmark, Viborg
I've had it on the nice side of 25W.

Lots of heat, boiling JFET's, and good sound.

Everything is possible....to do the impossible just takes a little while longer.
  Reply With Quote
Old 27th December 2008, 03:24 AM   #5
diyAudio Member
sandyhooker's Avatar
Join Date: Dec 2005
Location: Arizona
Originally posted by Magura
I've had it on the nice side of 25W.

Lots of heat, boiling JFET's, and good sound.


Thanks all for the replies....This weekend I will peruse the threadbank for specifics..Perhaps someone could point to poignant threads.
  Reply With Quote


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
.wav file limits? Netlist Digital Source 5 2nd December 2006 07:16 AM
preference for using driver near its distortion limits mazurek Multi-Way 3 20th June 2006 12:56 AM
What limits an amp's output? BAM Chip Amps 9 14th July 2004 08:12 PM
limits in transient time metebalci Tubes / Valves 1 12th April 2004 08:57 AM
BZLS PS limits? protos Pass Labs 4 23rd January 2004 03:06 PM

New To Site? Need Help?

All times are GMT. The time now is 09:46 PM.

vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright 1999-2017 diyAudio

Content Relevant URLs by vBSEO 3.3.2