Simplistic NJFET RIAA

[nicoch58]

http://www.vinylengine.com/phpBB2/al...hp?pic_id=4383

some stuff not updated
http://picasaweb.google.com/nicoch46/Amp32ps#

[Salas]

-Very good turntable system indeed, the Spacedeck. Is the arm a current Helius?

-Interesting and many diy experiments I see in your photo link. Bravo.
Why is the AGV for? Don't tell me that you ride an Italian Desmo with a dry clutch...goes well with no feedback and full range attitude.

[nicoch58]

thanks Salas too good!

my space is old ,arm is mentor

modest yamaha szr660 but go down very well

after 20 year of bassreflex I tray FR ,supravox sound very well and openbaffle have incredible space info, not much bass but clean ,scanspeak have more grit but ........

I suggestion to try OB ,there are a good cheap for explore wolks-ob

[Salas]

...Don't drag me in to speakers, its going to be OT hell!

Because speakers are my love and specialty...

OK, just a little OT... You very well love OB detail and space and freedom for 2 reasons mainly: 1st critical msec of reproduction is free from box congestion, figure of 8 pattern is a means of controlled dispersion, i.e. less room coloration.

...Back to Salas RIAA.

After checking the Steve Bench cascode diy tube unit for preferred matched tubes, best stabilized PSU, best step up choice (gutted the Dyna DV6Z and put it inside the Bench so to avoid RCAs and cables), fine tuned its riaa eq etc. and did some comparisons with the Salas, I can confidently say that the only difference is the JFET characteristic VS the tube one. Just some less interest in music interplay, and a somewhat tamer tone. Of course if you weigh in the time, effort, and money to make the Bench or the Salas, and also the expertize needed not to screw the Bench... The 5-10% specific area difference is up to personal taste. In general, they are in same class for transparency, projection, and sheer musicality.

[Salas]

[nicoch58]

eheh good news....so simple too good




PS 1987 fist diy d2010+5k4211.....

[Salas]

First diy 1981, B110+T27...

[nicoch58]

you win !
but you are 6 year old

supex sound damn good....no game for my loved dl160......

[nicoch58]

Salas with type mundorf supreme use in the output ?


I have read that s/o have poor bass ?? I hope no!

[Salas]

Silver/Oil I use. Its a matter of a combination of things. In my assortment of parts and circuit decisions, PSU etc, it works balanced. But yes, if the circuit and parts or MC & speakers tend to be higher midrange projecting, an S/O will not help. A Jensen Copper Foil would do better in such a case.