I just revamped my portable sound system. I now have two Danley SM80 speakers with a bridged XTI1002 (1000W rms @8 ohms) to each. Now I have been thinking about subwoofers.
I have 4 very large Titan 39 subwoofers at 27" wide with a Lab 12 woofer in each. They actually sound really good and very clean. But, see I started with them before I knew anything about Danley and now I am thinking of selling my DR250 speakers along with the four subwoofers as a package deal. One TH118 has the same amount of peak output at 50Hz (143dB) as my four huge V-coupled subs and would drop lower. To get more SPL than what I have with the subs I have now I need an astronomical amount of subs.
What I would like advice on is the amplification and subwoofer. I have two XTI1002's and two XTI2002's right now. I could either sell the XTI1002's with the whole package system and use the XTI2002's for the SM80's (an XTI 2002 per SM80 at 1600W @8ohms) and buy a powered sub or subs OR get a sub or subs that will work well with the XTI2002's. They are 2000W RMS bridged at 4 ohms each. I would purchase a DSP if I got powered subs (a nice bonus would be wireless connectivity). I will continue using the internal DSP on the XTI amps if I got passive subs.
My interest is mostly in sound quality, but at the same time I can't go backwards in output. I have 143dB peak @50Hz capability on subs right now and it will due. I probably wouldn't be able to afford premium amplifiers, but a powered TH118 and a DSLP to start with wouldn't be out of the question. I thought about two TH115's with those XTI2002's, but I wouldn't be moving up in amp quality. I am also thinking that it may be better to start with one more powerful sub so that I need less subs for my future output needs. A future goal would be something in the range of 4 TH118's, 6 TH115's, or other subs all clustered together. That is what I eventually would like to be working toward.
Pack space or weight of the sub is no issue. Sorry for being wordy. I am just trying to lay out the whole picture.