Brian,
I am very glad that Kal set you right. Having said that, according to the ARCDB website, your mono blocks were introduced in 1984.
Not knowing the service history of your amps, if never serviced, the components could be upwards of 30 years old. I think it's worth letting Kal know the amp is operating ok, but ask him if he thinks it would be a good idea to do some preventative maintenance.
As an aside, my son owns an SP-9 preamp, which is of similar vintage. Kal sent me a kit of parts that he recommended replacing. The local ARC service tech did the job. All in, less than $100.
Btw, per the ARCDB site, your tube compliment is:
(2) 6DJ8, (5) 7044, (2 matched pairs) 6550, (1) 6550, (1) 12AT7
If you check back with Kal, ask him if any other tubes should be replaced.
It has been my experience that my ARC gear sounds best with fresh tubes. I follow ARC recommendtions and have never looked back. Didn't have to. ARC gear is great stuff.
Let us know what you decide to do.
BIF
I am very glad that Kal set you right. Having said that, according to the ARCDB website, your mono blocks were introduced in 1984.
Not knowing the service history of your amps, if never serviced, the components could be upwards of 30 years old. I think it's worth letting Kal know the amp is operating ok, but ask him if he thinks it would be a good idea to do some preventative maintenance.
As an aside, my son owns an SP-9 preamp, which is of similar vintage. Kal sent me a kit of parts that he recommended replacing. The local ARC service tech did the job. All in, less than $100.
Btw, per the ARCDB site, your tube compliment is:
(2) 6DJ8, (5) 7044, (2 matched pairs) 6550, (1) 6550, (1) 12AT7
If you check back with Kal, ask him if any other tubes should be replaced.
It has been my experience that my ARC gear sounds best with fresh tubes. I follow ARC recommendtions and have never looked back. Didn't have to. ARC gear is great stuff.
Let us know what you decide to do.
BIF