My favorite amp(s) from the Decware stable (and one of the very best amplifiers I have ever heard, period) was a pair of SV83M monoblocks that I owned for a short period of time.
I stupidly returned them and bought a Zen Select ..... which is also a killer amplifier. The reason I decided not to keep the SV83Ms was out of the fear that I would not be able to find a supply of good matched SV83 / EL84 power tubes (six needed), 6DJ8 driver tubes (two needed) and 5U4 rectifiers (two needed).
As it turns out, there are now some very good current production tubes of those types that would have worked just fine ..... and the rectifier tubes last forever .....

To this day, I have only heard one other amplifier (at $30,000.00) that would light up a pair of the Hornshoppe Horns the way those Decware monoblocks would. The speakers simply evaporated and the entire end of the listening room was a three dimensional sound stage.
I have kicked myself often for what turned out to be a very large mistake in not keeping those amplifiers .....

And they were knock dead gorgeous, to boot .....
I accidentally kept the "drool towel" that shipped with the amps and I occasionally use it for a crying towel when I think of how good those amps sounded .....
Randy