I have a 20A and LOVE it! It's paired with the 150A Hot Rod amp and produces some of the finest sound that I have heard in a long time. The "best"...no, but very, very pleasing. VERY musical and open, width and deep soundstage.
Kevin Deal at Upscale Audio recommended a quad of the Mullard CV4003 (12AU7) and these moved the already fine preamp up a notch or two.
So, I guess I REALLY like mine and the 21A is supposed to be even better...not sure how.
Kevin Deal at Upscale Audio recommended a quad of the Mullard CV4003 (12AU7) and these moved the already fine preamp up a notch or two.
So, I guess I REALLY like mine and the 21A is supposed to be even better...not sure how.