6SN7 and SRPP line stage

[pico]

Dear Friends,


I have an audio research SP9 preamp, which did a great job for a decade now. After I visited a collegue audiophile making a 1-to-1 comparison with its preamp I discovered that the SP9 lacks something I like. He has a 6SN7 line stage done by a French guy who recently passed away. The sound of that tube has some magic from bottom-to-top frequencies. I've fallen in love with it!

I read that the 6SN7 is a spectacular line stage tube (and I agree based on that single experience). So I made some search about which kind of configuration is best suited for that tube. It seems that there is a controversy about SRPP circuit. There people saying it sounds magic, other say crap... very strange!

Is there anybody out there who listened/owned a 6SN7 SRPP line stage? If yes I would be truly delighted to hear comments.

Best Regards
Pierre

 

[tony ky ma]

Hi Pierre
I did rebuild a SP6 into mu stage with 6DJ8 ( mu stage like SRPP) so the SP6 remain power supply an case only for my friend and after done compared to other friend's SP14, after the compare he sold his SP14 too. but in my experience for line stage only is a single tube (triode) with output transformer has much better than any other design, simple is the best but depand the quality of the parts to choose that is up to your budget
tony ma