2. amps-preamps
  3. 1360645348

Nagra VPA 845 retubing

Hi. I have a pair of Nagra VPA monoblocks with 845 tubes. I bought these used. When I contacted a local dealer I was told that I should only buy tubes from Nagra, because Nagra supposedly ensures that they are perfectly matched and are fully compatible with the amps (they costs 900 a pair!). Is this true, or is this a racket? Has anyone tried other matched 845 tubes than those sold by Nagra? If so, any preferences? Thanks
obrennan1963
jfrech's avatar
jfrech
1,816 posts
 
Hi I don't have Nagra VPA's, but I do have a Nagra PLL and VPS. They do heavily test their tubes and warranty them. Not all 845's also are perfectly to the same specs and could possibly cause a issue. Those are GREAT amps, I've heard them lot's at my dealers...I spend the $$'s....it's not a racket.

I agree it's a little pricey...but you also don't have to worry a about a bad tube and matching is important in balanced amps...like you VPA's

Out of curiosity, what preamp are you using with them?
brf
1,715 posts
 
$900/pr for current production 845 tubes is a lot of money. What make are the Nagra supplied tubes?
sunnyboy1956's avatar
sunnyboy1956
424 posts
 
Online prices range from approx USD 95 for a single tube to 950 or so for a pair depending on the brand etc. Nagra prices don't appear to be unreasonable .
All the best
Pradeep
More to discover