300B vs. KT88 SET?


Hi guys, I've heard so much ABOUT tubes that I want to try them. My speakers are very efficient, so there should be no problems with 7 watt SET amps. Unfortunateely, I can't find place to audition them so I need your help. There are number of amps available here on the Agon. Some of them based on 300B tubes and some are using KT88. Thouse that use KT88 are less expencive to buy, and so are the tubes.
But how different do they sound?
All you inputs and opinions are appreciated.
zoya

Showing 3 responses by bemopti123

I agree with Jax2 and others, that the inherent qualities of either 300B tubes and Kt88s are evident, according to the type of music that is demanded of them. I tend to associate Kt-88 tubes with powerful and high wattage wise tube amps. Due to the higher wattage of most Kt-88 tubes gear makes me think that they were intended for high energy music such as rock, or heavy orchestral. Although there are several manufacturers that have multiple 300Bs in order to produce more useful wattage, for medium sensitivity speakers, the most refined 300B amps seem to be those producing 9 watts per channel max. Being an owner of both high powered tubed gear and low, SET 300B amplifier, I notice a large different in sound, as it was well explained by one of the posters above.

Yes, you need to have two different amps or maybe two different systems in order to enjoy the best musical "fit" that one can, but honestly, most people do not have the space.

I personally, kept my 300B amp and I am presently running a low battery powered SS amplifier, which sonics are at least 95% comparable to my 300B amp, especially in the midrange.

BTW, my goal is to have a system like JAX2 has. Beautiful and simple set up.
Noise, be it from tube heating via high sensitivity speaker or in my case, due to what is called "battery" noise, it unavoidable, unless you have one of those new fangled digital amps. I have a pair of Voigt pipes, just the cabinets left. I made them about 3 years ago, and for whatever is worth, they sounded pretty good to me, until I got a pair of Zhorns, at which point, I decided to cannibalize the Fostex drivers from them, and now, I am rocking. If you were close to me, I would have lend them to you permanently! Well, that is not the case, for it seems that you live in the West coast. Jax2, what also fascinates me is the Voigt pipe, as it is described in TWL's system. It seems to me that he was able to overcome some of the most common complaints of their design, chiefly the lack of low frequencies. He is a mad tweeker and experimenter, so things might be different for most of us. Anyway, you can build yourself a pair of Voigts for about $450, drivers included. Affordable. That is the story. I would love to hear your job rig.

PAUL K
Jax2, thanks for the offer. If I ever swing by Seattle, I would love to hear your rig. When the time arises, I will offer you the same opportunity, to listen to my rig in NY. Nice pics. Are you a photographer by profession? Nice pics in your website. Check my stereorig in Audiocircle, I have two albums going. One has a MR-78 Mcintosh tuner first and the other one, the Zhorn with Fostex drivers.