subs for LFT-8bs

Moving more air with a sub will certainly make a minor difference,  but any way you look at it,  your speakers are like 83db sensitivity.  Anything playing that has a lower gain,  is going to give you some issues. If you are truly happy with the overall sound,  I would look for a player with variable output... if not,  a Preamp with a variable output..

thanks. using a computer as player - directly to amps - no preamp - was using a passive but this sounds better.  Sounds great - only issue is with blu rays - one solution would be to avoid blu ray altogether and just play dvds.  

Relieving your Quicksilver of bass frequencies will allow much more of it’s power to be available for the ET’s. That will require adding not just a sub or two, but a passive 1st order 6dB/octave high-pass filter (or active x/o) to the input jacks of the Quicksilver. All that entails is the installation of a capacitor on those jacks, which, if you lack soldering skills, can be done by any tech in five minutes. There is a formula for determining the value of the cap, involving the desired corner frequency and the input impedance of the amplifier. That formula can be found via a Google search. An active x/o, with steeper slopes (12/18/24 dB/octave), will remove more of the bass from the signal going into the Quicksilver, leaving more power for the ET’s. The Rythmiks are great with the ET’s, by the way.

Thank you, bdp24.  Would it be possible for me to contact you directly?