2. amps-preamps
  3. 178651-22094

Can an ARC VM220 be upgraded to KT 150 Tubes?

My VM 220 is. Due for a re-tube and rather than use the standard 6550’s I was wandering if I could invest in a better tube?

knowing ARC I expect the power supply is over designed and the extra power consumed is likely not an issue.  

‘I am driving Apogee Duetta Signature speakers and the amp does a great job.

Advice on the above tube upgrade appreciated.

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jasonbourne52's avatar
jasonbourne52
2,863 posts
 

Don’t assume the power supply is over-speced! You could end up needing a new - and costly - power transformer! More current drawn = more heat - never a good thing for an amp's power supply!

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cleeds
5,949 posts
 

I think it unwise to substitute any tube without first checking with the manufacturer or its authorized dealer.

audioconnection
1,271 posts
 

I agree with all of the above!

 one area you can take a look at is the 6N1P

 and experimenting with some of the older versions.

  Best JohnnyR

ARC dealer NJ

ghdprentice
6,969 posts
 

+1 all of above comments.

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