Are the right tubes installed?
Tube phono preamp distortion - help
Hi everyone,
Having some very frustrating distortion issues with my new Jolida JD9 Mk2, and I have tried everything I can think of. My rig was working without issue with the following setup:
Project Debut Carbon w/Otorfon 3M Blue
Vincent PHO-8 Phono Stage
Simaudio i-1 integrated
Tekton M-Lore speakers
Silnote IC, phono cable, and power cables
Clear Day double shotgun speaker cables
So, the only change I made was to remove the Vincent and hook up the Jolida. The Jolida has several settings that need to be chosen:
A. Three voltage gain switches: I set this to low (for MM cartridge, as recommended). The medium setting was unlistenable, and I didn't bother trying the high setting.
B. Eight impedance switches (100, 300, 1000, 47000 ohm, and 47, ,100, 150, and 220 Pico Fared). I set this at the recommended 47k ohm for the Otorfon Blue. I tried the other settings out of curiosity, but none sounded as good at the recommended setting.
C. Two RCA outs: High (1.8 volts for an integrated or line stage) and low (500 millivolts for high gain preamp separates). I connected from the High out to my Simaudio integrated.
This combination of settings is by far the best sounding. However, I get terrible distortion in the higher frequency ranges - upper keys on the piano, female vocals, etc. The low and midrange are fantastic, but the higher range just degrades into a static-like warbling sound (as if it's being overdriven) in both channels with each rise in a singer's voice or striking of the piano keys. It happens on every record and in both channels. As soon as I put my Vincent phono stage back in, everything returns to normal.
I have tried everything I can think of:
-Placing the phono amp further away from my gear
-Trying different inputs on the Simaudio integrated
-Using every possible combination of the switch settings and the RCA outs.
I'm relatively new to vinyl, and I see why some people say it's too much trouble. However, I'd like to find a way to make this work.
I'm open to any suggestions - ready to experiment! Thanks for any ideas!
Best,
Scott
Having some very frustrating distortion issues with my new Jolida JD9 Mk2, and I have tried everything I can think of. My rig was working without issue with the following setup:
Project Debut Carbon w/Otorfon 3M Blue
Vincent PHO-8 Phono Stage
Simaudio i-1 integrated
Tekton M-Lore speakers
Silnote IC, phono cable, and power cables
Clear Day double shotgun speaker cables
So, the only change I made was to remove the Vincent and hook up the Jolida. The Jolida has several settings that need to be chosen:
A. Three voltage gain switches: I set this to low (for MM cartridge, as recommended). The medium setting was unlistenable, and I didn't bother trying the high setting.
B. Eight impedance switches (100, 300, 1000, 47000 ohm, and 47, ,100, 150, and 220 Pico Fared). I set this at the recommended 47k ohm for the Otorfon Blue. I tried the other settings out of curiosity, but none sounded as good at the recommended setting.
C. Two RCA outs: High (1.8 volts for an integrated or line stage) and low (500 millivolts for high gain preamp separates). I connected from the High out to my Simaudio integrated.
This combination of settings is by far the best sounding. However, I get terrible distortion in the higher frequency ranges - upper keys on the piano, female vocals, etc. The low and midrange are fantastic, but the higher range just degrades into a static-like warbling sound (as if it's being overdriven) in both channels with each rise in a singer's voice or striking of the piano keys. It happens on every record and in both channels. As soon as I put my Vincent phono stage back in, everything returns to normal.
I have tried everything I can think of:
-Placing the phono amp further away from my gear
-Trying different inputs on the Simaudio integrated
-Using every possible combination of the switch settings and the RCA outs.
I'm relatively new to vinyl, and I see why some people say it's too much trouble. However, I'd like to find a way to make this work.
I'm open to any suggestions - ready to experiment! Thanks for any ideas!
Best,
Scott