I got my first ARC pre-amp in 1989- an SP-6b. A buddy of mine who was experienced and competent with modifying ARC gear did a nice upgrade for me. He replaced the film capacitors with WonderCaps, changed the resistors to metal film, new trim pots on the tube voltage bias circuits, Litz wiring throughout and gold RCA jacks. I enjoyed that preamp up through 2003 and only changed so I could experiment with low output MC cartridges.
Audio Research Sp-6a-Should it be modified?
First, thanks for all the input. With your help, I have found an amazing repairperson, and will write about his work after the repair.
He said he could modify the pre-amp and bring it to current levels of performance.
What do you think? Should I have it modified or leave the circuits original? What do you recommend?
Regards,
Miles
Regards,
Miles
He said he could modify the pre-amp and bring it to current levels of performance.
What do you think? Should I have it modified or leave the circuits original? What do you recommend?
Regards,
Miles
Regards,
Miles