FWIW, I think the 'interesting case' is due to the crossover and Silverlines implementation of the drivers. I have another set of speakers with identical drivers (except for the tweeter) but different cross-overs, cross-over points, and boxes/design. Those speakers are fairly flat FR types, 86db efficiency, and fairly flat impedence curve (ideal for tubes). They sure don't sound like the Boleros, which I have owned for 2 1/2 years and highly indorse.
I use small tubed PP pentode/triode amps which cost less than 3K. Works for me! I'm sure there are 'better' electronics but I've been there/done that and can pass on the opportunity to go down that road again. :-)
I use small tubed PP pentode/triode amps which cost less than 3K. Works for me! I'm sure there are 'better' electronics but I've been there/done that and can pass on the opportunity to go down that road again. :-)