Well currently I have no room in the back of my SUV. So the only option to mount the amp is on the box. My box is subs up port back. I have room on the top to mount the amp. I put a couple coins,keys, and other chit on top to see how bad it vibrates. It definetly vibrates, but will it be bad for the amp?

I never had any problems with mine. It's obviously not ideal though.

Not immediately, but it can eventually cause the terminal connections to loosen up, controls to adjust themselves and farther down the road, the PCB can crack from the ever so slight flexing. It depends on how much vibration you have and it doesn't take much. If possible, mount the amp on a double-thick board attached to the edges of the top of the box, that should reduce the vibration. Mount 2"wide scraps of MDF at the edges and place board across them like a bridge so it isolates the amp.

Oh ya I did forget to mention that the top is double baffle. So it has 2 layers of MDF

Right here is the spot!

Edited September 16, 200816 yr by SEC

put some rubber feet between the amp and the box. It wil help lessen the vibrations going through to the amp. Also you can mount it on the sides of the box if you have room too.

J

Which revision 1500D is it ?

If it says "SAZ-1500DC" on it they are more resistant to vibration.

Rubber feet are a great idea regardless.

I wouldn't do it at all unless the baffle is at least double thick - we triple baffled Brandon's box on the face where we mounted the amps.

Which revision 1500D is it ?

If it says "SAZ-1500DC" on it they are more resistant to vibration.

Rubber feet are a great idea regardless.

I wouldn't do it at all unless the baffle is at least double thick - we triple baffled Brandon's box on the face where we mounted the amps.

Its a 3000d. Also the top is 2 layers of MDF.

Which revision 1500D is it ?

If it says "SAZ-1500DC" on it they are more resistant to vibration.

Rubber feet are a great idea regardless.

I wouldn't do it at all unless the baffle is at least double thick - we triple baffled Brandon's box on the face where we mounted the amps.

Its a 3000d. Also the top is 2 layers of MDF.

SAZ-3000D "B" has some upgrades for vibration resistance - is yours brand new ?

In any event... double baffle is pushing it a bit for a 3000D. You have a long board with HEAVY transformers - add to that extra vibrations and you may have a problem at some point. If you really MUST mount it to the box make a plate for a third layer where it is to be mounted and use rubber grommets for feet.

NOTE:

Mounting the amplifier on the enclosure also allows someone to steal BOTH your amps and speakers at the same time with no extra effort. It's bad enough to have one or the other stolen but losing amps and speakers (and anything else mounted to your speaker box) is really gonna suck.

Now for those who absolutely have to mount the amplifier to the enclosure:

NOTE:

The top of the enclosure has been removed to show the bracing.

Absolute Worst Situation:

This diagram shows the amplifier mounted in the center of the largest wall of the enclosure. You will notice that there are no braces under the amplifier's mounting points (red arrows). Because this part of the enclosure will flex more than any other, this will cause more physical stress (from panel flex and vibration) to the amplifier than any mounting position. This would be made even worse because the enclosure has no center brace/divider.

Worst Position

Somewhat Better Position:

As you can see, this enclosure has a center brace which will help to reduce panel flex. You should also notice that the amplifier's mounting points are very close to the braces or on top of the wall of the enclosure. These points will have less vibration from panel flex (when compared to points farther from the dividers or walls).

As good as it gets (with amp on box):

This method of mounting will relieve most of the stress from the amplifier because the wood braces will connect the top of the enclosure to the bottom of the enclosure and won't allow the panel to flex. The braces should be glued (with a good wood glue) and screwed on both ends. The other mounting points are directly on top of the walls or dividers which will vibrate VERY little when compared to the an unbraced panel.

-http://www.bcae1.com/

in this diagram, i wouldn't put screws in the top left & right holes as that part of the enclosure is the most susceptible to flex..