In this system there is a separate preamp and 40 watt (20/20) EL-34 tube amp currently powering a pair of Kilpsch RP-600M speakers.
Ideally the setup should work like this:
Preamp out (line level) to the sub or subs.
Stereo line level crossover inside the sub, around, say 100Hz. Lows goes into its internal solid state amplifier, high-pass filtered audio to output jacks which then connect to the tube amp and to the full range speakers.
I'm not sure which of the subs suggested here will accomplish that.
The cost should be around $500 or less so some of the excellent subs suggested here will not fit the bill.
8'or 10" would be more than enough.
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So far these have been suggested:
Thank you all.
mijostyn: Kef KF92 and KC62
psf4972: KEF KC62
aggregatebuzz: BIC America F12
waytoomuchstuff: Small B&Ws
balooo2: RSL 10 MKII
dbphd: KEF KC62
dwest1023: B&W DB3i
jjss49: rel t5i/x or t7i/x
sunshdw: SVS 3000 Micro
dweller: Polk Audio PSW505
musicaddict: The SVS SB-2000
jayctoy: Pioneer, $349
tweak1: GoldenEar ForceField 30 - 8" or 40 - 10"
fuzztone: SVS micro or KEF KC62
rocray: Rythmik,REL,or SVS
lak: small REL's
grislybutter: Kef, (not a fan of SVS, REL)
hilde45: Rythmik subs
bigshutterbug: Totem Kin
soix: SVS SB1000 Pro
