What Warren said... 'There ain't no rule of thumb.'
You want 'imaging, depth and timbre?' Get a $39 Sonic Impact class T amp and go nuts. It may not impress your friends, but it will sound amazing paired with an efficient transducer. Or how about a nice pair of Wavac SH-833s @ $350,000? I haven't heard these, but for that money, I would guess they probably sound pretty good.
One man's trash is another man's treasure. Listen and judge for yourself.
You want 'imaging, depth and timbre?' Get a $39 Sonic Impact class T amp and go nuts. It may not impress your friends, but it will sound amazing paired with an efficient transducer. Or how about a nice pair of Wavac SH-833s @ $350,000? I haven't heard these, but for that money, I would guess they probably sound pretty good.
One man's trash is another man's treasure. Listen and judge for yourself.