sound splinter 12" (two different models to pick from) and probably av-12 from AE.
On the horizon?
Ascendant various 12 inchers, which will all apparently include some kind of low distortion, flat BL motor (not XBL^2)
AE is changing their AV-12/15 line in the near future to have a better motor
Adire has promised new DIY subs for almost a year now, but only a limited number of tempests have shown up, and only at CSS in Canada, IIRC. The Tumult 12" would be a prime choice, but you could be waiting for a long while. I think the DIY market is really on the back burner for Adire right now... which financially probably makes sense. Just disappointing for the DIYer
There are a bunch of SPL-800 amps on Ebay now too...i was considering one of those but I figured the extra 400 watts would be nice. I know this amp is not just a straight up amp , I am sure its tweaked so I am going to need Velodyne's help choosing a driver and alighnment.
You might consider a two step sub system, an IB for the really low stuff and a sealed box system with a little overlap and EQ/Phase shift to allow a better transition into the mains. Don’t forget the room has more to do with SQ then anything else. I have an IB and the added sealed pair of ACI 12" were just the ticket to get the punch and extension I was looking for and overcome the room modes, and like you I have tried many different combinations of subs, all but this latest fall far short.
Hey Mike, that sounds like a great idea but I am not really in search of anything..I am just building another sub.
A small sealed subwoofer is enough to power my room and with the extreme room gains I have ..that little SPL800 does it perfectly. A single sealed Shiva would do it too.
Well its looking like my best bet is to buy a driver from Velodyne and just copy the SPL1000. I dont think Velodyne is going to tell me the TS specs of the driver nor are they going to help me find a driver so I am SOL.
I know the SPL1000 amp has some EQ built into it and knowing the SPL1000s enclosure is just barely larger than a cubic foot the EQing is probably all centered in the lower frequencies..so I am probably safe to make the box a little bit larger.
But I suppose to be 100% safe id be best off sticking to at least within 10% of the original size , I can probably improve on the sound just by making a sturdier box than what Velodyne offers.
I am not sure if you are aware of the RythmikAudio Servo sub, but it is a 12" TC Sounds driver, 370 watt Servo amp that has outstanding SQ and extension, and pretty decent output also.
I just recently built a 12" subwoofer for my infocus 4805 based HT. The Sub I bought was a GR-Research 12" sub and 12" passive radiator. The box is 2.4 cubic feet.
http://www.gr-research.com/drivers/sub_pr.htm The sub and PR on on sale as a combo for $129. I used a rhythmik 350 amplifier to power it. Just got it hooked up last night so I can't comment on the performance just yet, but the price and specs are nice. It was basically designed with SQ as the goal.
That Rythmikaudio Servo combo looks like alot of bang for the buck.
And that GR-Research combo is cheap!
I just got off the phone with Velodyne ...I can get an SPL 1000 driver for $300 + shipping ..I dont know anything about it except it has a 21.6lb magnet and its 8ohms. The amp I won is rated @ 1000 watts RMS /2000 watts peak but who knows how fudged those numbers are. Knowing the driver is 8ohms makes me think the amp is probably more like a 500watt amp or even less.
I am not sure what I am gonna do..I can do this SPL1000 clone for about $500 + box materials....this does not look too attractive when I know I can get a new SPL1000 for about $700.
I'd be careful with the Velodyne drivers, I've tried a HGS15 woofer in a DIY sealed and apreodic and had have little good to report about it. It looked great, huge magnet structure and beefy suspension, but sounded like crap no matter what I put it in.