the dartZeel NHB108 amp - diyAudio
Go Back   Home > Forums > Amplifiers > Solid State

Solid State Talk all about solid state amplification.

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 27th August 2003, 05:11 PM   #1
diyAudio Member
 
Join Date: Aug 2001
Location: Brooklyn
Default the dartZeel NHB108 amp

Stereophile has just issued a glowing review of this amp in the Sept '03 issue, FWIW.

Here is their website -
http://www.dartzeel.com/test/pagesE/NHB108_1_E.html

and I've attempted to attach a skeletal schematic (and the caveat that - "All drawings and schematics concerning the darTZeel NHB-108 model one are patent protected")

From what I can discern, it uses CFB, courtesty of Jean Higara, on the front end, and output sans global feedback ala LC audio or Altman's 'splif'.

The lack of an output Zoebel is not a result of the skeletal nature of the schematic, but rather a 'feature', for improved sonics. The amp will blow right up if you turn on the amp without a load connected.

I'd be interested in comments from my technical betters (which is most everyone).

Both Matin DeWulf and John Marks made an effort to inform the public that if they acted quickly, one could buy this amp for $10,000, prior to the price increase....
Attached Images
File Type: jpg dartzeelamp.jpg (18.3 KB, 815 views)
  Reply With Quote
Old 27th August 2003, 06:35 PM   #2
bocka is offline bocka  Germany
diyAudio Member
 
Join Date: Jul 2003
Location: Hannover
To my opinion there are much better schematics and amps available. 6 (again six) transistors in the signal path is really not so low, my amps using max. 4 .

Quote:
Both Matin DeWulf and John Marks made an effort to inform the public that if they acted quickly, one could buy this amp for $10,000, prior to the price increase....
Marketing ********. I'd wait until the price drops to $2000.
  Reply With Quote
Old 5th September 2003, 05:49 PM   #3
diyAudio Member
 
Join Date: Aug 2001
Location: Brooklyn
I just noticed that the URL I had posted for the DartZeel website is no longer working.....

The DartSeel website can be found at -
http://www.dartzeel.com/
  Reply With Quote
Old 5th September 2003, 06:21 PM   #4
The one and only
 
Nelson Pass's Avatar
 
Join Date: Mar 2001
Quote:
Originally posted by bocka
To my opinion there are much better schematics and amps available. 6 (again six) transistors in the signal path is really not so low, my amps using max. 4 .
Marketing ********. I'd wait until the price drops to $2000.
Right on. I bid 100 Quatloos on the spirited newcomer.

  Reply With Quote
Old 5th September 2003, 06:50 PM   #5
paulb is offline paulb  Canada
diyAudio Member
 
Join Date: Jun 2001
Location: Calgary
http://www.quatloos.com/
Quatloos.com is a public educational website covering a wide variety of financial scams and frauds, including wacky “prime bank” frauds, exotic foreign currency scams, offshore investment frauds, tax scams, “Pure Trust” structures and more.

100 Quatloons says you meant the Star Trek episode, Nelson.

Not sure if my spelling is right either.
  Reply With Quote
Old 5th September 2003, 06:58 PM   #6
diyAudio Member
 
Steve Eddy's Avatar
 
Join Date: Sep 2002
Location: Sacramento, CA
Default Re: the dartZeel NHB108 amp

Quote:
Originally posted by pmkap
and I've attempted to attach a skeletal schematic (and the caveat that - "All drawings and schematics concerning the darTZeel NHB-108 model one are patent protected")
If you can read French, all the gory details are laid out in his world patent number WO03043185 which you can pull up at http://gb.espacenet.com/. The English abstract simply states:

The invention concerns a power amplifier consisting of three stages: a first feedback-free stage amplifying the input signal in current; a second stage amplifying in voltage the signal output from the first stage and comprising two direct current feedback half-circuits symmetrically implanted and operating over the whole frequency spectrum; a third feedback-free stage amplifying the current derived from the second stage and powering a loudspeaker.

se
  Reply With Quote
Old 5th September 2003, 07:13 PM   #7
diyAudio Member
 
Steve Eddy's Avatar
 
Join Date: Sep 2002
Location: Sacramento, CA
Quote:
Originally posted by paulb
100 Quatloons says you meant the Star Trek episode, Nelson.
I wonder how many bushels of quadrotriticale you could buy with 100 quatloos?


God wants dollars
God wants cents
God wants pounds shillings and pence
God wants guilders
God wants kroner
God wants Swiss francs
God wants French francs
God wants escudos
God wants psetas
Don't send lire
God don't want small potatoes



Quote:
Not sure if my spelling is right either.
T'was quatloos.

se
  Reply With Quote
Old 5th September 2003, 08:20 PM   #8
13DoW is offline 13DoW  England
diyAudio Member
 
Join Date: Jan 2002
Location: Orange County, Ca.
Or even how many quatloos might you lose in a game of Royal Fizbin?

13DoW
  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
dartzeel amp schematic..build this? tadiam Solid State 4 5th December 2008 10:05 PM
DarTZeel, Stereophile's 2005 Amplification Component... Ultima Thule Solid State 110 30th December 2005 07:53 AM
darTZeel NHB-108 model one deletraz Solid State 0 5th September 2003 06:34 PM


New To Site? Need Help?

All times are GMT. The time now is 02:19 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