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Hovland HP-200P Preamp - Tube Rolling


Anyone out there have actual experience with
tube rolling on the the Hovland HP-200P preamp?
Looking for more speed, more detail and tighter
bass.

I am also looking for a backup tube set for the
standard off the shelf configuration from Hovland.
Now that they are closing shop, I am having trouble
finding a source that matches these exact tubes.
audiothunder

Showing 2 responses by larryi

larryi
4,295 posts
 
A friend had an HP-200. When we replaced the phono-stage tube, I believe a 12AX7 with an Amperex Bugle Boy 12AX7 the sound was dramatically better -- more nimble, and alive sounding. It is worth doing some tube rolling with that unit.
larryi
4,295 posts
 
More suggestions. For a faster, tighter sound, Telefunken tubes would also work well for the 12AX7 positions (marked ECC83 or as 12AX7). For the 12AT7 position, perhaps a 5751 would be a good choice. The 5751s could also be used in the 12AX7 positions, but, they offer lower gain than a 12AX7. The Hovland appears to have plenty gain so that is not a big deal.

Unfortunately, these older tube types are not cheap, particularly when compared to current production tubes. But, in my opinion, the Hovland is worthy of the better vintage tubes out there.

Good luck on your search.
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