Hsu Research VTF-TN1 Subwoofer Review

[adrianconst]

It would be about having the App IMHO. Remember the Room, and the position of the Sub in it relative to the listener, will have far more impact that the Sub itself. Is having the App is worth another $1,000 too you? Do you have an AVR with Auto Tuning? Does it work for you now, or is it the App? How about adding a second SB 3000 instead?

I agree, the app is more of a convenience. I have one optimal place for one subwoofer, which is in a corner on the same wall with the front speakers. For waf reasons a second sub is not an option. I actually did some more tuning today with Dirac Live (I have an Integra DRX 3.4). This is the reading I've got with REW from L+R+sub. I can't get rid of the dip at 130 Hz. Dirac doesn't let me change the sub delay (Auddisey let me do it), so not much more I can do (I already played with the sub phase and the fronts crossover). Anyway, do you think either of the ported subs I mentioned would make a sensible improvement?

Another reason I mentioned PB 4000 is because it looks like it keeps the output flat to a lower freq thanTN1 does, based on shadyJ measurements.