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How to audition subwoofer?

Would any please tell me how to audition a good subwoofer w/o dragging my own subwoofer to the store? I have a Polk Audio PS350 (10" 150w w/ variable crossover 60-160Hz & frequency response from 25-180Hz). I went to the Good Guys to audition a $1200 Velodyne sub (sorry don't remember the model #). The rep closed all the doors of the sound room, put in the CD, and cranked up the volume of Parasound separate system. It sounded so boomy that I didn't find it any better than my current sub even though two salemen used the exact same lines, "Velodyne would blow your sub out of the water." I was thinking how? By shaking my room? My 12X13 room was already shaking with my current sub. I was hoping to hear the tight bass that I have heard from this websites and others similar. They told me to bring my sub in for side by side testing, but before I do so, I like to consult with Audiogon members, i.e. how do you audition a thousand-dollar subwoofer. What is the trick? My preference is 1:1 of movies:music. Do you prefer dual 12" for push and pull? Do you like the down firing? If I get a better sub, I was thinking of stacking them and use a Y splitting cable. Or should I just forget about upgrading to a better subwoofer by taking an easy route, i.e. getting another PSW350 to place each behind a main speaker to get better marginal affect. Any personal experience. Please shed lights. Thank you for reading.
lej1447
10 responses Add your response
eldartford
4,262 posts
 
I like the idea of putting a SW behind each main speaker. I think this provides the best "seamless" integration. In particular I have my Maggies set up this way with dual driver subwoofer systems installed in the wall behind each of three Maggies. The idea is that they "play through" the screens, and it seems to work. The thought has occured to me that the function of the SW may be as much to absorb the out-of-phase backwave of the planar speakers, as to directly generate LF sound.

When auditioning a SW, remember that most LF sound sources are not exactly crisp, and a somewhat lumbering (not "tight")sound may be correct. It takes a while for a 30 foot organ pipe to get itself going, and the same for other LF instruments. Compare a tuba with a picalo. Percussive bass, like a drum is the only exception I can think of.

I think the Velodyne is good, but the cost of three could not be justified.
ptmconsulting
1,000 posts
 
Find several pieces of music emphasizing different kinds of deep bass. Classical (i.e. Antartica suite on Naxos), upbeat & funky (i.e. Marcus Johnson Chocolate City Groovin), acoustic upright, big drums.

Then listen to speakers similar to yours both with and without the sub turned on. A good sub will be able to handle both the rumble and the punch, while adding the dynamic and enhancing the bloom higher in the frequency range. The salesman should allow you to adjust the sub, if necessary.

Basically you shouldn't notice that the sub is there, except for the qualities I mentioned above. If the room is overloading it's set incorrectly.

My personal preference, although a tad expensive, is the REL Strata III. Integrates with most any speaker & gives you what I describe above.

Enjoy,
Bob
jdombrow
371 posts
 
For music, I think a sub works best with the output (volume) set very low, so that it just fills in the bottom octaves without overwhelming the music (or the room). Forget the room shaking demonstrations, unless you're really concerned with movies.

One of the things I do when comparing subs, is to put my ear on the cabinet. How does it sound? Clean? Muddy? any rattles in the cabinet?
seandtaylor99
1,262 posts
 
Bob hit the nail on the head. IF you notice that the low frequencies are obviously coming from the sub then the sub is not integrated. It's that simple. If the salesman can't make this happen then I would not buy a sub from them. I also agree with his recommendation of a REL strata (I own one, and I really can't tell that it's producing the bass until I switch it off). You can get a used REL strata for under $900.
Salesmen who sell subs according to power rating or ability to knock pictures off the wall are selling for home theater, not music.
ig40
64 posts
 
Why not try a ACI Titan II? They offer a 30day trial on all their products. I find it superior to the REL Strata III. (www.audioc.com)
polara
72 posts
 
take a look at vmps also-if you ever heard one you would know why you never see a used one
phasecorrect's avatar
phasecorrect
2,013 posts
 
I would look at home trial companies such as Hsu Research,Adire,etc..if there is one thing I have learned over the years...nothing can simulate your own system and your own room..good luck..
kgveteran
377 posts
 
Go to a true high end audio store.There is a big difference between a best buy and a high end retailer.Look for gear like krell,bryston,b&w speakers,some vandersteen.Sales people who are interested in giving you information to help make an educated purchase.Check out some of the clubs in the forum in your area and get with people who have dedicated hometheaters.If you walk in and some pimple face kid offers you one of fourty HDTV's all lined up and hasn't a clue to what 1080i is you may be in the wrong store.Good luck.
goose
696 posts
 
This is a tough question since the listening room plays such an important role. I have found that the better subs have the most controls i.e. an excellent array of crossover points to blend with the main speakers. I have also found that there is a tendency to cross the subs over at say 50 cycles when a better blend would be 28 to 34 cycles. As far as the actual testing of the subs with music is concerned, I never audition with electronic or the obvious low frequency insturments. My favorite is a well recorded kick drum so I can hear the snap, roundness and decay of the drum. The last point is that amplifiers can make a big difference in determining if you really need a sub. I have monitor speakers and when I changed the amplifer the sub became less important. I'm currently using a REL Stadium III with JM lab Mini Utopias crossed over at 32 cycles with Herron electronics.
lej1447 OP
117 posts
 
Thank you for your inputs. I did go to a true high end audio store. I was surprised to learn that they did not even have a subwoofer. They let me listen to Hotel California through a CD transporter and a "1-kg remote control" with a $10,000 heavy speaker set. Wow! I was told that with those speakers, I did not even need a separate subwoofer. Cool toys, but hot price tags. The quality was there, but at this point in time, the rate of diminishing return truly run high for a minute marginal effect for me. Again, I failed to hear what tight bass for music from SW sound like, and I failed to feel what 20Hz at 125 db in movies would be.
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