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Discussion Starter · #1 ·
When a subwoofer outputs weak bass, what could be the likely cause and fix ? Even if I turn the gain to the max on both the sub and receiver, the bass is just weak. When I switch to my Energy S10 sub on the same setup, bass is plentiful with the gain @ 9 o'clock and trim on the receiver @ 0db. So the problem is definitely with the Canton sub but don't what it is? Any clues ?

Here is the info about the sub

Canton AS50 Powered Subwoofer
Forward Firing Bass Reflex Enclosure
12-inch cellulose/polyester driver
Power: 350 watts
Frequency response: 20-150 Hz
Crossover frequency: 20-150 Hz (Adjustable)
Line Level & Speaker Binding Post Connections
22" H x14.2 W x18.2" D
Weight: 59 lbs.
 
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It's likely that the plate amp on the sub went out. The same thing happened to my Emotiva sub 12. They quickly repaired it under warranty, but the symptoms sound very similar.

If the sub is out of warranty, and your not afraid to get in it, you could just run some speaker wire through the port, hook it up to the driver and test it with a spare amp.
 

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Discussion Starter · #3 ·
It's likely that the plate amp on the sub went out. The same thing happened to my Emotiva sub 12. They quickly repaired it under warranty, but the symptoms sound very similar.

If the sub is out of warranty, and your not afraid to get in it, you could just run some speaker wire through the port, hook it up to the driver and test it with a spare amp.
I don't have a spare amp. It is a Canton subwoofer so the plate my be expensive to replace. Any other test I can perform ?
 
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You don't have to have a sub amp. Just any amp. Old stereo amp, anything that can temperately send power to the driver just to test it. I you don't have that, then I can't think of any other way to test it.
 

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Discussion Starter · #6 ·
Another newbie question, if I place a sub on its side rather than up, does it affect the sound quality ?
 
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Another newbie question, if I place a sub on its side rather than up, does it affect the sound quality ?
Is it a down firing sub? What side is up? Many moons ago I stuffed the port on a down firing sub and placed it on its side making it a front firing sub and it sounded much better.
 

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Discussion Starter · #8 ·
Is it a down firing sub? What side is up? Many moons ago I stuffed the port on a down firing sub and placed it on its side making it a front firing sub and it sounded much better.
It a front firing sub. Up is sub on its feet. Driver facing forward to the listening position.
 

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You will find that you can get remarkable performance from an ID sub for the replacement cost of another Canton.

Good Luck,

Bill C
 

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If you ran your Audyssey MultEQ room correction did you First turn off any filters on the sub and set your sub to min volume and raise the EQ on it? If not try that. If that works then go back and set the sub manually.
 

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SVS wont let you down, i have 3 with the 12" hooked to the center channel. Some people don't realize there are lots of explosions in the center channel.
 
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