bobrown14 |
03-04-2014 04:01 PM |
KT150 vs KT88
I just built a SEUL amp originally built for KT88. I'm assembling parts for a KT150 mono block build based around the same circuit as the KT88 just more voltage/current. For giggles I dropped in my KT150 tubes I have on hand for the next build into the KT88 amp I've been running in my listening room. Well all I can really say is they were dropped in to test drive and I've not taken them out yet. They sound better than the KT88 GL new issues I had in there, wider bigger sound stage, deeper more controlled bass, just a bigger sound and that's with the voltages set for a KT88. The KT150 can take a bunch more voltage than the KT88. The KT150 wants more current on the heaters so if you sub them in be sure your PT is up to snuff in that regard. It sounds as if Dennis is OK with swapping them into his KT88 amp, you'll get the same power as the KT88 but in my experience with a similar amp to his that those KT150s sound a little better to my ears. I run horn loaded 105dB efficient speakers with 15" woofers so I can hear subtle changes. Usually when rolling power tubes I don't really notice much, very very subtle but in this case I really like the KT150 noticeable in a good way for sure. They cost me $75/tube which I've paid close to that for GL KT88s maybe only $10 cheaper. I'd post a pic of my amp but I'm new here so I don't think I have privileges yet.
IMHO the KT150 for a few more bucks is worth it. I'll be getting some more of them.
Justlisten2 I'm around the corner from you in Mt Airy - you want to take a listen to my amp we could arrange that... best to hear your speakers so I could stop by some time and can bring a set of KT88s and KT150s sub them in so you can hear the differences. I've got my amp set up with a volume pot so you can plug whatever direct sans a TT but I've got a portable battery powered phono preamp I could tote along easily as well ifn's you like vinyl.
Cheers,
Bob Brown
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