Best setup? - - ACI Titan II LE

Ken, I would think it depends on your mains. I don't think there is a great deal of difference between the line-level and the speaker level adapters. I have found the passive filters for the main speakers to make a great deal of difference, they really free up the mains to do their thing with less stress. They have a bit of loss, maybe 2 or 3 db, so first impression is that they take something away. Once level is correctly set they are very transparent.
Having made a direct comparison to Storm III I think you will be pretty happy with the outcome:)

I first ran my ACI Titan II LE with the speaker level adapters, but, most of the time, I detected an annoying hum (induced from the unavoidable jumble of cables in the area).

I then ran shielded interconnects directly from my preamp. to the Titan II LE, and the hum was gone. There was a seamless integration with my Vandersteen 1Cs; the Titan II LE did a virtual disappearing act while it filled in the lowest octave and then some (similar to what a Rel Storm II had done, but more easily achieved and with significantly more slam when required).

A month later, I inserted ACI's 65 Hz. passive highpass filters between my preamp and main amplifier. After raising the crossover point a little on the Titan II LE, I've had that same integration and opened up the sound of the Vandersteen 1Cs a bit.

I'm still breaking mine in and the jury's out on the hookup. I've been playing with both the line-level and with using the speaker level inputs. Haven't yet tried hi-passing my mains. No question, this sub can play!

Thanks,

I'll try both line-level and speaker-level connections. For now, speaker-level connection isn't causing any hum. I'm looking forward to more breaking-in and comparing it to my REL Strata III.

act6tk,

How's the Titan II LE coming along? I'm still breaking-in mine and will next try the line-level connection.