Simplistic NJFET RIAA - Page 608 - diyAudio
Go Back   Home > Forums > Source & Line > Analogue Source

Analogue Source Turntables, Tonearms, Cartridges, Phono Stages, Tuners, Tape Recorders, etc.

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 8th April 2011, 11:32 PM   #6071
diyAudio Member
 
mhouston's Avatar
 
Join Date: Jan 2006
Location: Victoria, Australia
Quote:
Originally Posted by Franz Gysi View Post
Salas

What would you change in "my" circuit to reduce to 58dB gain for the Benz ACE SL?

Click the image to open in full size.

I just listened to an LP I know very good, and maybe, I should reduce K2 for my taste a little bit, as you mentioned before.

Regards
Franz
The B+ here is a lot higher than I would normal use. For my versions of this cct. I use 27 to 36V. I did find with my BoZ builds that the preamp sounded better with 27V and not 36. I do believe FETs like high voltages to run linear but I have found my jFET units sound batter at the 27V mark.
  Reply With Quote
Old 9th April 2011, 01:19 AM   #6072
Salas is offline Salas  Greece
diyAudio Chief Moderator
 
Salas's Avatar
 
Join Date: Oct 2002
Location: Athens-Greece
The Fets are running much lower in that. It 'burns' it on the loads. Its not a matter of choices, it won't run for lower with its Idss, bias, and gain.
  Reply With Quote
Old 10th April 2011, 05:09 PM   #6073
diyAudio Member
 
Franz Gysi's Avatar
 
Join Date: Oct 2007
I did the first comparison Benz ACE SL vs. Denon DL103R.

Loaded with 150 Ohm; gain 60dB.

As I cannot switch between both cartdridges and have to readjust the weight and anti skating, a comparison is not easy.

My first impression (Nina Simone My Baby Just Cares For Me 45rmp):

The Benz is less coloured, maybe as neutral as possible. The details are impressing, also the bass.

But I miss a little bit the voice from Miss Simone. Are the mids a little bit weak?

Not sure yet.

I will compare soon Fairground Attraction The First of a Million Kisses.

One example of the music style:

YouTube - Fairground Attraction - Perfect

I own the LP and from the same master recording the FLAC Files on my musicserver (DAC Audio Alchemy DDE 3.0).

So I can compare first the BENZ to the musicserver and afterwards the Denon.

Yesterday I've built a dustcover for the TD126.

Click the image to open in full size.

Franz

Last edited by Franz Gysi; 10th April 2011 at 05:18 PM.
  Reply With Quote
Old 10th April 2011, 05:18 PM   #6074
Salas is offline Salas  Greece
diyAudio Chief Moderator
 
Salas's Avatar
 
Join Date: Oct 2002
Location: Athens-Greece
I will insist on listening to the Denon with 220R load also...
  Reply With Quote
Old 10th April 2011, 05:22 PM   #6075
diyAudio Member
 
Franz Gysi's Avatar
 
Join Date: Oct 2007
Quote:
I will insist on listening to the Denon with 220R load also...
Yes, I will do it. Maybe next weekend

Franz
  Reply With Quote
Old 10th April 2011, 05:26 PM   #6076
Salas is offline Salas  Greece
diyAudio Chief Moderator
 
Salas's Avatar
 
Join Date: Oct 2002
Location: Athens-Greece
Nice cover, needed.
  Reply With Quote
Old 10th April 2011, 05:38 PM   #6077
diyAudio Member
 
merlin el mago's Avatar
 
Join Date: Sep 2009
Location: Catalonia - Europe
Seems original cover congrats.
  Reply With Quote
Old 10th April 2011, 05:42 PM   #6078
diyAudio Member
 
Franz Gysi's Avatar
 
Join Date: Oct 2007
Quote:
Nice cover, needed.
Indeed, a dustcover is a must.

In a household not only to keep dust away, but also to close the apparatus when not in use and to clean the apartement without the risk of damage of the turntable.

Quote:
Seems original cover congrats.
Thanks!

Smile
Franz

Last edited by Franz Gysi; 10th April 2011 at 05:49 PM.
  Reply With Quote
Old 10th April 2011, 07:04 PM   #6079
ra7 is offline ra7  United States
diyAudio Member
 
Join Date: Feb 2009
Blog Entries: 1
Salas and gang,

thought you might find this interesting.
[Interview] Pierre Lurné - Thoughts on Sound Propogation in arms - [English]

Check out the tip at the end of the article. Seems simple enough to try.
  Reply With Quote
Old 10th April 2011, 07:17 PM   #6080
Salas is offline Salas  Greece
diyAudio Chief Moderator
 
Salas's Avatar
 
Join Date: Oct 2002
Location: Athens-Greece
Point contact. Good mounting experiment if there is still slack in the arm's height adjustment. I hope it will not be prone in to loosing set angles after some play and handle.
  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



New To Site? Need Help?

All times are GMT. The time now is 09:33 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