Sub Sound (or lack thereof)

[philwsailz]

phil got long winded (imagine that ), just put it in a box and don't play it out of a box anymore.

easy killer....

I resemble that remark..

I agree though, put it in a box.

[spharis]

phil got long winded (imagine that ), just put it in a box and don't play it out of a box anymore.

[philwsailz]

I am trying to find a manual on-line for that amp, but I do not see it on their website. I think I want to look and see how they recommend wiring it...

[philwsailz]

HMMM. I didn't try that. That's something to try out.

Not you Jason... Sorry, that was for XP.

Your sub will not make any real sound until you install it; kind of like trying to run a motor without putting it into a car; it will spin and spin, but will not get you anywhere.

[Jason B]

LC1 is level control, correct? That should not affect things, just clarifying.

What happens if you take the RCA cables to the 5-channel amp and connect them directly to the subwoofer section input on the amp?

HMMM. I didn't try that. That's something to try out.

[philwsailz]

LC1 is level control, correct? That should not affect things, just clarifying.

What happens if you take the RCA cables to the 5-channel amp and connect them directly to the subwoofer section input on the amp?

[xpjim1]

I have one set of HU outputs going to LC1 to tower amp and the other set of out put going to LC1 and into front input on amp. Running all 5 channels off the one set of input

[philwsailz]

XMD3 Head unit
Cadence FXA 5100 5 channel amp. 1 x 300 @4ohm to Clarion 10 inch free air sub
Channels 1 and 2 powering 4 clarion 6 1/2 inch component
Channel 3 and 4 Powering 2 Claron 6 1/2 inch component

1 Pair Pro 60 and 1 Pair MB8 powered by Cadence 1502 2 Channel amp

is the sub a single voice coil woofer of a dual voice coil woofer?

[xpjim1]

XMD3 Head unit
Cadence FXA 5100 5 channel amp. 1 x 300 @4ohm to Clarion 10 inch free air sub
Channels 1 and 2 powering 4 clarion 6 1/2 inch component
Channel 3 and 4 Powering 2 Claron 6 1/2 inch component

1 Pair Pro 60 and 1 Pair MB8 powered by Cadence 1502 2 Channel amp

[philwsailz]

Clarion sub and amp huh? ( I re-read above)

[philwsailz]

Ok so Mine is a free air mounted in factory location, Door to compartment closed and nothing noticible. I have the cmd3 head unit set to full on the rear set of outputs. amp has low pass bult in. Adjusted the amp and almost nothing. Slight vibration in woofer. I need a thump?????

What is the rest of the system? What amp? What woofer?

[xpjim1]

Ok so Mine is a free air mounted in factory location, Door to compartment closed and nothing noticible. I have the cmd3 head unit set to full on the rear set of outputs. amp has low pass bult in. Adjusted the amp and almost nothing. Slight vibration in woofer. I need a thump?????

[philwsailz]

So once we mount the sub in the box it will pound!?

Thanks Phil! I was a little worried, I don't want anymore delays--I want my stereo!!!!

Make sure you use a box that is sized appropriately for the woofer, but the simple answer is yes, get the woofer installed and it will pound, at least as well as a Wetsounds sub can or will J/K!!!!!

(Tim sorry, had to. )

If you have any doubts about the size of the box, let us know; Tim at Wetsounds, myself, or possibly someone else can help you out, but I bet you have it going on already....

[Jason B]

So once we mount the sub in the box it will pound!?

Thanks Phil! I was a little worried, I don't want anymore delays--I want my stereo!!!!

[philwsailz]

I've got an older Tige and the only door to the compartment in front of the helm is in the walkway. I installed a Kenwood free air sub and I've found that if I just unlatch the door, it sounds way better. It seems like it wants to be vented to some extent.

you went there didn't you...


A vented enclosure takes advantage of the fact that air is compressable. When you open the door a little, you are using the door as a crude tuning device.

What you are doing basically is setting up a Helmholtz resonant device, where the air inside acts as a spring and compresses and releases more or less at or near the same frequency that the woofer is operating at. Rather than simply relieving the pressure inside the box, the air going in and out the door actually moves in phase with the woofer, i.e. when the woofer cone is going out, the air in the doorway is going out as well.. Same thing for inward travel.

Sounds crazy, but aids in the understanding... A vented woofer enclosure operating at resonance will have higher internal pressure when compared to a similar sealed box.