Sonic Frontiers SFP-1 Upgrades


Hi all,

I was wondering if anyone has done the parts connection upgrade to a Sonic Frontiers SFP-1 phono section?

I demo'd a Graham Slee Gold Mk. V and was very impressed, so I'm waffling over modding the SFP-1 or selling it for the Slee.

Any opinions would be appreciated.
SLF-2 Pre
SFS-80 Amp
Oracle Delphi MkII w/Rega Rb350 arm and Grado Platnum

Thanks
foohead
If you like image and focus of the music then the SFP-1 is the one. I also like it with Denon DL-103R MC cartridge. I compared my SFP-1 with heavily moded EAR 834P, Quick Silver phono, ASL mini phono. I upgraded my with larger power supply cap. and fast acting diodes. These upgrades improved low frequency punch and pace. My SFP-1 version had similar resistors and caps in the phono section as SFP-1 Sig. from the factory. I use SFL-2 preamp and SF power 2 amp.
I can't really answer your question. I have a Sonic Frontiers SFP-1 Signature that I am about to send out to the Parts Connexion for some upgrading. I have a SF 2 Power Amp and think that the SF components are fine. Everything I have read (there is a fair amount of info on the 'asylum) about Chris Johnson's mods has been very positive. Personally I would think that upgrading the SF and then taking advantage of it's tube rolling abilities would make it worth keeping.

Chris
Letch, keep us inform about the upgrade.
I tried Mullard, Bugle Boys, Amperex orange globe and A frame 6dj8. The big surprise to me was JAN Phillips NOS 6dj8 from PartExpress, these tubes were super quiet and better instrument separations.
I understand the SFP-1 upgrade replaces about 80 parts on the PCB, or was it 80% of the total parts, (good memory eh) and new tubes. I'm not sure if that does the power supply or not, hopefully it does.

Regardles, it sounds like almost a total re-build. I'd have to agree with Nghiep, please let us know how your upgrade works out for you.
The bigger cap in power supply provided more bass authority and the ultra fast acting diodes increased transparency and pace as I did the PSU mod myself. I preferred the stock diodes because of more natural music.