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Which Second Sub would you recommend?

post #1 of 10
Thread Starter 
Hi,

I need some help in narrowing down which second sub to get in a challenging room and placement. I'm attaching a photo of my HT wall of five M & K S-150 (L,C,R) speakers and their baby brothers for my Front Height's. I have M & K in the back and two side speakers. And then my sub, which is the part(s) I'm having trouble with. In the lower left portion of the photo you can see my sub, a Velodyne SPL-1500 (15") and in the lower Right there is a cardboard box on the floor and behind that is the part of the cabinet where I want to put a second sub. The WAF is strong in my decision making and so this is where I'm putting the second sub. The room itself is about 23' feet x 16' x 11' slanted ceilings. Opposite the photo is a row of picture windows that run the whole length of the room and start at 12 inches and go to 6'. So everything bounces, hardwood floor with large area rug, sofa, three chairs. Three openings into other small rooms, openings are about 40 inches. My two limiting factors are cabinet depth, the sub can't go deeper than about 22-23 inches and I don't want it to shake the bookcase so that it damges the other equipment or knocks things off the wall!

So with the Velodyne on the left, what should I put on the right. Here is my logic or illogic as I don't really have a sub woofer theory base to fall back on. Correct my thinking please.

I don't know really why, but I'm intrigued by this HSU product: MBM-12 Mid-Bass Module, I'm thinking it will add some depth to the 80-150 Hz as I have the crossover set on the Velodyne at 80 Hz. Wrong thinking? Here is the link: http://www.hsuresearch.com/products/mbm-12mk2.html

Okay to complicate matters, I wrote to HSU and asked about using this Mid-Bass and the owner wrote back (impressive to say the least) and instead recommended the VTF-15H but at 26 inches deep I can't get it in the cabinet and it is a monster and I wondered if it would shake the bookcase or equipment too much. Instead, it looks like I could get the VTF-2 MK4 into the cabinet. http://www.hsuresearch.com/subwoofers.html

Then I started to read the excellent sub shootouts and I saw that this Rythmik FV12 was well liked. http://www.rythmikaudio.com/FV12.html

Rythmik FV12 based on reading reviews...but would it create a sound that would fight the Velodyne? Some of the reviews say it is more musical or cleaner. Thoughts.

SVS Sound and the PB12-NSD, great reviews and it goes to 22 inches deep, so it will fit. The PB 12 -Plus is too long. http://www.svsound.com/subwoofers/ported-box/pb12-nsd

Budget should be $800 but I can wait a month and push it to $1,500. I know I'm missing out on a ton of other subs, and would love to hear "why" I should get something based on my setup and how it would or would not interact with the Velodyne.

My receiver is a Onyko TX-NR5008 and I have a Parasound amp for the front five speakers.

Thanks for your advice.

(sure wished I had known about the sub shootout here in Michigan. If any of those people are reading this, plz let me know if there plans for another one.)
LL
post #2 of 10
I dont really think you should bother trying to blend two completely different subs. If you can find another spl-1500 go with that, otherwise a pair of new subs would likely be best.
post #3 of 10
Thread Starter 
Thanks Jay....I've started to look for a matching Velodyne, no luck so far.

If you explain, why wouldn't getting the HSU Mid-Bass module be a good idea?
post #4 of 10
Do you just want more mid bass slam? Cause that is what the MBM is for. The reason for multiple subs is to better integrate the subs with the room. It is much easier to do when both subs have equal capabilities.
post #5 of 10
I think that if you add another 15 inch sub it may shake stuff off bookshelves. I saw some cerwin vega 15 inch speaker videos on youtube showing stuff falling from shelves from the vibration. I use to have two 15 inch floor-standing speakers several years ago. It rattled the hole house doorknobs, basement and windows so bad. Are you sure you want that much vibration? At the time I thought it was cool until it messed with the foundation a little. I had hard wood floors in old house. 12 inch subs still sound good and have a nice punchy bass. I am not a fan of 10 inch woofers, but sometimes they sound okay. I prefer 12 and 15 inch subs.
post #6 of 10
Quote:
Originally Posted by keyboardcat View Post

I think that if you add another 15 inch sub it may shake stuff off bookshelves. I saw some cerwin vega 15 inch speaker videos on youtube showing stuff falling from shelves from the vibration. I use to have two 15 inch floor-standing speakers several years ago. It rattled the hole house doorknobs, basement and windows so bad. Are you sure you want that much vibration? At the time I thought it was cool until it messed with the foundation a little. I had hard wood floors in old house. 12 inch subs still sound good and have a nice punchy bass. I am not a fan of 10 inch woofers, but sometimes they sound okay. I prefer 12 and 15 inch subs.

Depends on his room on whether he needs 12 or 15. Either way setting them up should be fine.
post #7 of 10
Have you done any measuring in your room to see where in your FR is from the LP. I would hate to see you purchase another sub when placement of your first can be tweaked.
post #8 of 10
Thread Starter 
I need to do the measurements....and to answer an earlier question, yes, I wanted more mid-bass slam but from what I'm hearing, that isn't something people are recommending. From HSU's site, it seems that the mid-bass module is sold with two other true subwoofers.

Are my M & K speakers able to give me that extra presence in those 100-150 frequencies that the mid-bass module would. So hard to know unless you have the product in house. I would love to hear from anyone who has it what their feelings are before and after.

Thanks for the great ideas.
post #9 of 10
I personally would look at getting 2 new identical subs.
post #10 of 10
+1 - I'd get (and have) two identical.

If budget then permits maybe look at an SMS-1 to get them all in a happy state of tune.
The SMS would assist with (not solve) overcoming your placement restrictions.
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