A sub to go with kef ls 50 speakers

I heard the B&W PM1 mini-monitors with the B&W PV1D sub and it was very impressive. However, the demo used a Classe preamp with digital crossover that sent a high-pass signal to the mini-monitors. When you do this it opens the mini's up to more dynamics. The PV1D as good as it sounds does not have that high pass crossover built into the sub.

However, the new JL Audio eSub series does have a high pass crossover. You can send a preamp output to the sub and let the sub forward a high pass signal to the LS50's, opening up its power handling and volume capability. All the JLs I've heard are fantastic, and the eSubs have gathered some rave reviews, even from Neil Gader at TAS who says he never liked subs.

The JLs are particularly adept at blending with even the fastest main speakers, with their huge motors and very light, rigid diaphragms. I am quite sure the JL e110 would make a great match with your LS50s and properly energize your listening area.

I heard the B&W PM1 mini-monitors with the B&W PV1D sub and it was very
impressive. However, the demo used a Classe preamp with digital crossover
that sent a high-pass signal to the mini-monitors. When you do this it opens
the mini's up to more dynamics. The PV1D as good as it sounds does not
have that high pass crossover built into the sub.

However, the new JL Audio eSub series does have a high pass crossover.
You can send a preamp output to the sub and let the sub forward a high
pass signal to the amp that drives the LS50's, opening up its power handling
and volume capability. All the JLs I've heard are fantastic, and the eSubs
have gathered some rave reviews, even from Neil Gader at TAS who says he never liked subs.

The JLs are particularly adept at blending with even the fastest main
speakers, with their huge motors and very light, rigid diaphragms. I am quite
sure the JL e110 would make a great match with your LS50s and properly
energize your listening area.

I had dual PV1D with LS50, ended up selling both...

PV1D got 1 big problem, not enough output. IT sounded WAY BETTER than internet direct subs.

I just bought a used REL Q108 MK II (can't find out why or what was improved over the MK 1, whatever that was) to stick in my window for augmenting the also sometimes window placed (used when I'm hanging out on my deck and the windows are evenly spaced so this arrangement works…I run a different power amp than my indoor mains as I have extra outputs on my preamp) KEF Q10s (had these for years and used them for near field recording as well as main speakers from time to time). The KEFs go down to around 60hz so this little sub matches fine when the driver is pointed out the window (uses the entire house wall as a baffle it seems…sounds really good for outdoors). I plan to use this little sub in my main system when the deck is snowbound, and after testing this I think it's a good match, although not really needed (the Q150 I already use provides more than enough mojo for my hifi room)…I run these subs at right around or slightly higher than what appears to be the drop off point of the main speakers…not the -3db point noted by the manufacturer, but where I hear the bass receding when using a test CD on the mains as I think a -3db spec is sort of useless in real world applications.

Dual SVS SB2000 gloss black.