Simplistic NJFET RIAA - Page 276 - 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 14th December 2009, 12:38 PM   #2751
Salas is offline Salas  Greece
diyAudio Chief Moderator
 
Salas's Avatar
 
Join Date: Oct 2002
Location: Athens-Greece
Quote:
Originally Posted by Joao@AltheaMusica View Post
Agree with your sight of view. When this is your "entry level" how is your highest level in phono amplifiers? Just interested if you will give me / us some short possible forecast on your designs?!
But I am not a designer. I just DIY something if a need occurs for my system or for a mate. Usually simple and cheap enough. J. Gerhard's MPP may be interesting for you.
  Reply With Quote
Old 15th December 2009, 09:36 AM   #2752
diyAudio Member
 
Join Date: Aug 2009
Quote:
Originally Posted by Salas View Post
J. Gerhard's MPP may be interesting for you.
Followed this thread but this stuff is not "my cup of tea" ... if I want to build such similar one there exists many good devices to work with.

No I'll try out the single ended phono stage, this is nearer by my valve topology. BTW, do you know an substitute for the 2SK389/2SJ109, a dual JFet?
  Reply With Quote
Old 15th December 2009, 09:43 AM   #2753
Salas is offline Salas  Greece
diyAudio Chief Moderator
 
Salas's Avatar
 
Join Date: Oct 2002
Location: Athens-Greece
Burning Amp Festival 2009

There they talked about something Linear Integrated Systems is to produce.
Maybe you can investigate further.
  Reply With Quote
Old 15th December 2009, 11:00 PM   #2754
RCruz is offline RCruz  Switzerland
diyAudio Member
 
RCruz's Avatar
 
Join Date: Sep 2006
Location: Wallis
Blog Entries: 1
[QUOTE=Salas;2011900]The hiss is due to the wire, not the core. Detail smothering level or tonal coloring can be due to the core and general construction. Trafos are specialist stuff, you guys know which one suits better what cart etc.
QUOTE]

So even choosing a R core, one must be carefull about the wire used in it right ?
  Reply With Quote
Old 16th December 2009, 06:11 AM   #2755
Salas is offline Salas  Greece
diyAudio Chief Moderator
 
Salas's Avatar
 
Join Date: Oct 2002
Location: Athens-Greece
Its not about quality. Its the physics of noise. Has to do with turns and impedances needed. Talking head amps.
  Reply With Quote
Old 16th December 2009, 02:45 PM   #2756
diyAudio Member
 
merlin el mago's Avatar
 
Join Date: Sep 2009
Location: Catalonia - Europe
Quote:
Originally Posted by Salas View Post
Just low.
Hi Salas,

Instead the Benz Micro Ace Red Low that cost: 60000, what about this cartridge Audio-Technica AT33PTG is more economical & the specs seems really impressive & cost 389$00 = 28000 aprox. only available in Japan:

Click the image to open in full size.

Specifications

Type: MC type
Playback frequency range: 15 - 50,000Hz
Output voltage: 0.5mV (1kHz and 5cm/sec.
Channel separation: 30dB (1kHz)
Output balance: 0.5dB (1kHz)
Stylus pressure: 1.6 - 2.0g (1.8g standard)
Coil impedance: 17 Ohms (1kHz)
Direct current resistance: 17 Ohms
Load resistance: 20 Ohms or more
Coil inductance: 70 mu H (1kHz)
Static compliance: 40ױ0 - 6 cm/dyne
Dynamic compliance : 10ױ0 - 6 cm/dyne (100Hz)
Needle tip form: Micro linear (ML)
Vertical tracking angle: 23?
External size: L26.5 W 16.6 H16mm
Mass (cartridge): 6.8g

Thks in advance for your kind advice

Merlin El Mago
  Reply With Quote
Old 16th December 2009, 02:53 PM   #2757
Salas is offline Salas  Greece
diyAudio Chief Moderator
 
Salas's Avatar
 
Join Date: Oct 2002
Location: Athens-Greece
It will give very good SNR too. But I have never listened to one. I hope it does not remind other AT MC that had always stricken me as ''thin'' in midbass.
  Reply With Quote
Old 16th December 2009, 06:20 PM   #2758
RCruz is offline RCruz  Switzerland
diyAudio Member
 
RCruz's Avatar
 
Join Date: Sep 2006
Location: Wallis
Blog Entries: 1
IMO the Benz ACE is a very good compromise for the price.... Lower cost Benz like the MC Gold ($350) sounds very coarse, undetailed... and imagery is worst than a DL160.

Low cost Ortofon (Like MC10) sound very thin.... the good ones (K) cost more than $600

If I was to choose a lower cost cart I would try to listen to a Sumiko Blue Point Evo3...
  Reply With Quote
Old 16th December 2009, 06:23 PM   #2759
diyAudio Member
 
merlin el mago's Avatar
 
Join Date: Sep 2009
Location: Catalonia - Europe
I listened one AT OC09ML & mine impression is that no have thin bass, possible not deep as I like. I like the solid & deep bass, not inflated & without control. What about the sonics of a Denon DL-103 it's similar like The Denon DL-304?

thks again

Merlin El Mago
  Reply With Quote
Old 16th December 2009, 06:54 PM   #2760
diyAudio Member
 
merlin el mago's Avatar
 
Join Date: Sep 2009
Location: Catalonia - Europe
Quote:
Originally Posted by RCruz View Post
IMO the Benz ACE is a very good compromise for the price.... Lower cost Benz like the MC Gold ($350) sounds very coarse, undetailed... and imagery is worst than a DL160.

Low cost Ortofon (Like MC10) sound very thin.... the good ones (K) cost more than $600

If I was to choose a lower cost cart I would try to listen to a Sumiko Blue Point Evo3...

Thanks for your opinion Rcruz, Sumiko Blue Point Evo III is an MC with high output: 2,5mV, the specs are good & seems matched perfect with mine Linn Ekos, another good option in MM will be Clearaudio Virtuoso Wood 54500 or better the Clearaudio Maestro Wood 68000, but initially I prefer MC low output between 0,3 or 0,4mV?
  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 03:47 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