Electronics for Harbeth, Especially Monitor 40 series

I don't get the "speed" thing. I think tube amps are generally snappy, and am amused that somehow the term "speed' has been co-opted by reviewers and others who apparently have run out of adjectives. Like "metal drivers are faster"…no, they're not…expensive SS amps might have characteristics some find appealing, but actual music doesn't rely on horsepower or torque or sticky tires. When SS guitar amps attempted to worm their way into the Pro Guitar Player world, many tried them (including me) as they seemed interesting after decades of worrying about tubes exploding or needing replacement or whatever. To a man (or woman) pretty much everybody I knew, except bass players who need gigantic amounts of headroom, noticed a weird lack of instantaneous "picking" feel…I'm not sure why…but there was something just not kosher happening, even with the supposed Good Amps (Lab, Yamaha, Fender "London Reverb" stuff)…tubes feel snappy…that's maybe the most descriptive term I can come up with for an electric guitar player's feel requirements along with the usual tube "roundness," "grease," "they glow," "chicks dig it," (not 100% on the last one, but I digress), and tube amps simply continue to dominate the picker's world..snappy...