Subwoofer to mate with Casta model C's.......


I have Casta Acoustic model C's with a 15" woofer, 17" custom horn midrange and 2" custom horn tweeter in each floorstanding speaker. The speakers are a sealed cabinet and are very efficient. My room now is 13 x 19 x 8 but soon will be 20 x 24 x 8 after renovations. I had previously owned an SVS PB13 ultra before purchasing the Castas but sold it knowing I wanted two in the larger room. The svs was a phenomenal performer. Can anyone give any recommendations on one or two subwoofers adequate to mate with the Castas and given room sizes. Budget is not an issue. THX in advance......
128x128bacardi
05-06-15 Bacardi "@M-db, do you think running the subs speaker connectors to the speakers allows for better blending with the mains?"

I apologize, my statement is misleading. I used my Velodyne DD Plus' line level High Pass filtered output to accommodate the use of a much lower powered stereo amplifier while one of the mono-blocks was being serviced. This line level high pass method is usually tried when accommodating small satellite speakers to achieve a smoother response.

Are you considering the speaker/high level connectivity method used by REL? I found my short time with a Studio III and this method of connectivity limiting in some important areas. I was able to improve the subs performance somewhat by using an equalized line level signal from my then, DD-18.

Keep in mind my criticizing subwoofer performance with the staggering room variables that confront producing extra low frequency playback can be quite worthless. I do feel strongly regarding the value of ever improving subwoofer equalization and the ability to remotely control deep bass.

If your goal is large air then you might want to expand your search outside the Hi-Fi community to Danley Sound Labs and Meyer Sound. Good luck with your search.
I may look at the Danley subs if they have a scaled down horn that is wife friendly. If you could see the Casta C's in gloss brown grain you would be in awwwww....

I have looked at the latest Seaton submersible sub and it is very nice but the pricing is well over $3000 for dual 15's in one box. I think if the Danley's have something in that range I would be done and not need another. I don't think the JTR's look as nice as they have a commercial look to them(not my cup of tea or my wifes).
@Bob_reynolds, what do you think of the new Goldenear Supersub XXL? To me it looks like a great contender at $1999US. It would match the Castas well in the piano black but not available till late this year.
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I've had a SVS PB13Ultra in piano black recently(sold) and I found with movies it hit the bottom octaves very well but music just couldn't keep up with my other Casta model D8's(2x8"woofers in each). I now have the model C's(15" woofers in each) which definitely hit down to 30ish but I still want the lower end. When I mentioned speed/acuracy of woofer relates to timing of the driver. The Castas are very tight and acurate to 30hz giving the sealed cabinet and custom made horns and drivers. I don't believe any sub can be as acurate as a floorstanding driver in its same driver size. But that's just my opinion from experiences. Since these Casta model C's(28,000) I've got dynamics, speed, acuracy, dimensiality and soundstage I've never reached before. The Svs SB13 ultra looks like a fantastic sub too but I would need to run two of them. I will specify on going sealed as I ran the pb13 ultra in sealed mode.

The Seaton Submersive F2 HP is also sealed with 2x15" drivers. And supposedly reaches 5hz. Two would be crazy and they aren't cheap - $2800 each. I could get two Svs SB13 ultra for $3000 shipped. I may contact someone at Danley to see what they think of my set-up.