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Tubes for a Conrad Johnson 17LS?

I just purchased a (used) CR 17LS Pre. This is not the 17LS2 version. I haven't got it home yet, but I'm already wondering if there's some experience out there with 6922 tubes. Also, are there other tube types that will work in this unit that are not 6922s? Thank you in advance, for your time!
128x128mdrummer01
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kjg
171 posts
 
I like the speed and tighter bottom end I get from using Philips JAN 6922's instead of the stock Sovtek's. The soundstage is a tad smaller, but the sound is better overall.
kw6
692 posts
 
Try Electro Harmonix 6922EH in your 17LS which is now standard in the 17LS2. But if interested in NOS exotics then Amprex or Siemans would probably be worth looking at.

Good Luck!*>)
dopogue
1,773 posts
 
There's a section of FAQ (Frequently Asked Quesions) devoted to tubes over at Audio Asylum with a LOT of information about 6922s and equivalents. I just bought a quartet of Amperex 6DJ8 tubes (6922 equivalents) and they are much better than the stock Electro Harmonix 6922s that came with my used 17LS2.

You can also play with pairs of tubes, recognizing that tubes 1&2, looking at the four tubes from the front, serve the left channel and tubes 3&4 serve the right channel. I've used Siemens 7308s (another equivalent) in positions 1&3 and Mullard E88CCs (yet another) in positions 2&4 with great success. Still trying to decide whether these sound better than the Amerex 6DJ8s.

Have fun tube-rolling. There are PLENTY of options. Dave
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