You may also find this link interesting:
https://forum.audiogon.com/discussions/counterpoint-alta-vista-mike-elliott
https://forum.audiogon.com/discussions/counterpoint-alta-vista-mike-elliott
COUNTERPOINT HYBRID PHONO STAGE UPGRADE
You may also find this link interesting: https://forum.audiogon.com/discussions/counterpoint-alta-vista-mike-elliott |
No circuit diagrams were provided when I upgraded and Elliot did not make a set of specs/diagrams available for upgrades when he closed down the site. You need to get those jfets out of there . the Sowter 8055 used in my unit gives a gain of 10 times & sounds great. You can change the loading resistors to get different loading values tailored to your needs. I had it done. You need to go higher than 47k ? You really should mod that unit . You will not believe how much different and better it sounds. I do have the name and address of Eliiot*s last technician who worked on my unit. No phone or email info as all my contact was with Michael. He probably has instruction/ schematics . Don*t know if he could/would help you .. |
I have 4- NOS Amperex 6922 gold pin 1972 made in Holland. I am going to fit Keystone micro- jacks on the jack board so I can swap resistors to get the right loading for the Decca cartridge. I also have schematic for the SA 5, that could be an option after I remove the JFET and upgrade the coupling caps to Dynamicaps. I don't use the phono all that much since I am getting incredible sound from digital after upgrading the CD player and DAC last year. I had a Koetsu red MC , but I prefer the Garrott- Decca Gold which is in a class of its own, but needs careful set up. |