Blue Hawaii tube amp

What tube type is in your amp? What brand tube is presently in your amp, and what do you like/dislike about the sound? What if anything sound wise might you be preferring?

EL34 headphone amp, correct? I've found a good replacement is GoldLion KT77, readily available from many on line sources. However, Facten is correct.....it would be nice to hear those questions answered.

If you want to ruin your amp, go ahead and use the KT77 tubes - NOT RECOMMENDED (you can verify this in the BHSE forum on HeadFi).

I’ve probably rolled 15 different types of EL34/6CA7 tubes in the BHSE, and found the vintage tubes to be very good - the older the better. Metal based sounded the best to me, than DD halos, followed by OO halos. If you don’t want to spend a lot of money, see if you can find a couple of used matched pairs of xf3 to get an idea of what the differences are between vintage and reissues. I don’t know if QC is better, but I wouldn’t suggest using Psvane tubes due to reliability issues (I never had a quad that last more than 1200 hrs).

You should really be asking this question on HeadFi, or reading through the BHSE thread on HeadFi if you haven’t already. I doubt you’ll get much help here.