Is this bass normal for this small subwoofer? - AVS Forum
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post #1 of 9 Old 02-07-2013, 03:26 PM - Thread Starter
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I got my self a jamo 8'' 250 subwoofer placed in the front left corner a few inches beside the left front speaker , and the room is about 4.3m x 4.6 m and wide opened from one side. I move the couch a very few inches forward so that im not touching exactly with the back wall.

Sub gain knob volume is set at 9 o'clock , and the bass is pretty smooth but not that much punchy and i normally never feel any objects moving with its bass.

Can this be because its a small subwoofer and the driver is only 8'' ?

Everything set to 80hz crossover , even for my front towers, with everything set to small.
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post #2 of 9 Old 02-07-2013, 03:57 PM
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You have already figured out your problem. An 8'' sub isn't big enough to move enough air to pressurize the room. A subwoofer that small is really only meant for a closet sized room used at a desk with a near field placement. A desk set up like this would be best with music only. An 8'' subwoofer is just to small in any size room for movie use.
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post #3 of 9 Old 02-07-2013, 03:58 PM
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Originally Posted by Secret Squirrel View Post

You have already figured out your problem. An 8'' sub isn't big enough to move enough air to pressurize the room. A subwoofer that small is really only meant for a closet sized room used at a desk with a near field placement. A desk set up like this would be best with music only. An 8'' subwoofer is just to small in any size room for movie use.

Right.

I see that Amazon has the Polk PSW 505 12" on sale for less than $200.
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post #4 of 9 Old 02-07-2013, 04:47 PM - Thread Starter
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Originally Posted by arnyk View Post

Right.

I see that Amazon has the Polk PSW 505 12" on sale for less than $200.
Can you gimme the link ? at the moment the bass is not bad for its size.Is this a good sub upgrade over my current one?

http://www.tiptopsports.com/electronics-details-246.htm
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post #5 of 9 Old 02-07-2013, 07:58 PM
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Quote:
Originally Posted by dazkyl View Post

Quote:
Originally Posted by arnyk View Post

Right.

I see that Amazon has the Polk PSW 505 12" on sale for less than $200.
Can you gimme the link ? at the moment the bass is not bad for its size.Is this a good sub upgrade over my current one?

http://www.tiptopsports.com/electronics-details-246.htm

http://www.amazon.com/Polk-Audio-12-Inch-Powered-Subwoofer/dp/B000092TT0

I dunno - the Jamo sub-660 shows up here as being a 12"

http://www.amazon.com/Jamo-SUB-660-Subwoofer/dp/B0099J2IV2

You may not want to upgrade but use the two subs in tandem.

I found some tests of the Jamo Sub 650 in the AVS archives:

http://www.avsforum.com/t/1426307/klipsch-rw-12d-pair-vs-jamo-sub-650-pair-vs-dayton-audio-titanic-mk-iii-sealed-sub-pair-subwoofer-g2g#post_22343346

While the PSW-505 is not part of the AVS evaluation I just mentioned, from other comments I would put it in the same league as the Klipsch RW-12D
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post #6 of 9 Old 02-08-2013, 01:47 AM - Thread Starter
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Originally Posted by arnyk View Post

http://www.amazon.com/Polk-Audio-12-Inch-Powered-Subwoofer/dp/B000092TT0

I dunno - the Jamo sub-660 shows up here as being a 12"

http://www.amazon.com/Jamo-SUB-660-Subwoofer/dp/B0099J2IV2

You may not want to upgrade but use the two subs in tandem.

I found some tests of the Jamo Sub 650 in the AVS archives:

http://www.avsforum.com/t/1426307/klipsch-rw-12d-pair-vs-jamo-sub-650-pair-vs-dayton-audio-titanic-mk-iii-sealed-sub-pair-subwoofer-g2g#post_22343346

While the PSW-505 is not part of the AVS evaluation I just mentioned, from other comments I would put it in the same league as the Klipsch RW-12D
So do you think i shouls go for the polk sub ? How much rms watts is that sub?
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post #7 of 9 Old 02-08-2013, 05:43 AM
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Originally Posted by dazkyl View Post

Quote:
Originally Posted by arnyk View Post

http://www.amazon.com/Polk-Audio-12-Inch-Powered-Subwoofer/dp/B000092TT0

I dunno - the Jamo sub-660 shows up here as being a 12"

http://www.amazon.com/Jamo-SUB-660-Subwoofer/dp/B0099J2IV2

You may not want to upgrade but use the two subs in tandem.

I found some tests of the Jamo Sub 650 in the AVS archives:

http://www.avsforum.com/t/1426307/klipsch-rw-12d-pair-vs-jamo-sub-650-pair-vs-dayton-audio-titanic-mk-iii-sealed-sub-pair-subwoofer-g2g#post_22343346

While the PSW-505 is not part of the AVS evaluation I just mentioned, from other comments I would put it in the same league as the Klipsch RW-12D
So do you think i shouls go for the polk sub ? How much rms watts is that sub?

It looks to me like your Jamo sub should not be replaced but augmented with one or more additional subs.
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post #8 of 9 Old 02-08-2013, 05:49 AM - Thread Starter
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Originally Posted by arnyk View Post

It looks to me like your Jamo sub should not be replaced but augmented with one or more additional subs.
You mean another sub like the one i have at the moment ? Because if adding another sub with the current one , bass wont be the same from both of the subwoofers if subs are going to be different.
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post #9 of 9 Old 02-08-2013, 05:54 AM
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Quote:
Originally Posted by dazkyl View Post

Quote:
Originally Posted by arnyk View Post

It looks to me like your Jamo sub should not be replaced but augmented with one or more additional subs.
You mean another sub like the one i have at the moment ?

Yes.
Quote:
Because if adding another sub with the current one , bass wont be the same from both of the subwoofers if subs are going to be different.[/quote;]

Multiple subs in selected locations around the listening room makes the sound field in the room more uniform and increases the overall dynamic range of your system. The subs run off the same LFE output of the AVR.
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