Hello, I have 15" red dual concentric Tannoy drivers in Belvedere cabs, before you buy anything, try your speakers with an OTL amp. I run mine with a Futterman design amp. After hearing this combo, I put away my Quad 63 USA monitors and my Maggies and never looked back. I have tried Tannoy's with several other tube/solid state amps and have felt their performance was just so so,BUT once hooked up to my Futterman/OTL amp, I felt their performance to be FIRST class.Thank you.
