I've got an alpine mrd m301 and a new 10" type e in a sealed box, nothing crazy but it sounds pretty good (to me at least lol). My question is where could i mount my amp without going into a false floor or something that requires a lot of carpentry? I heard it was bad to mount an amp to a sub box due to the vibrations, but if someone wants to dispute that my amp will fit on the back of the box.

Any help is appreciated. Thanks!

 

I believe that amp will fit under the seat. Either side will do...

I have never heard of not mounting the amp to the box due to vibrations. It's news to me...

 

You can mount it on the rear deck itself, or the seat back. The seat back is perhaps the most easiest place to mount it, BUT on the rear deck would be the most cleanest install. You won't even know it's there

 

I put mine under the passanger seat looks good

 

I would have put mine back there but it is rather too long of an amp. It would stick out.

 

I got my capacitor mounted on the back of the left rear seat that I fold down. I mounted my amp to my box (2 12" DVCs). It is freakin loud.

 

it's perfectly fine to mount it on the sub box. i've done it for years without any issues. your amp will experience vibrations mounted in the trunk anyhow. if you're worried...get some rubber washers and put them in between the box and mounting holes whenever you screw it in.

 

Thanks for everyone's advice. I ended up doing this

and mounting it to the back of the box in order for ease and more trunk space

I appreciate all the help!

 

Mounting it to a sub box is not a good idea. The vibrations could eventually cause your amp to fail.

 

Really? I never had any problems with the amps that was mounted to the box. What does the vibration do to the amp that causes it to fail?

 

If all of the components in the amp are small surface mount devices it would take much longer to cause a problem. If there are many axial leaded components or parts with serious mass it shouldn't take too long depending on the amount on vibration/level the sub is running at.

I work in the electronics industry and have seen this before. We had a design that was populated with a bunch of axial leaded capacitors that we sent to a vibe lab. After vibe testing the unit came back to the shop and sounded like a container of peanuts. Almost every cap came off.

You could mount it to your sub and it may work fine for years or it could stop working in a week. Or you could mount it elsewhere and not have to worry about it at all.

 

I don't see this happening unless it was poorly designed amp. I'm sure most of the manufactures took in consideration that the amp would most likely be mounted in the trunk not to mention it was meant for a car which will eventually hit bumps and potholes in the road. If there are subs in the trunk it will experience vibrations whether its directly mounted to the box or anywhere else in the trunk. Not that car audio is the same pa audio, but they actually have sub boxes out there with amps built on the inside of the box.

 

+1

You are at the mercy of the manufacturer's quality control. Any components on the printed circuit board with cold solder joints will fail with the vibration.

 

I am wondering how much of a vibration it was under?
Either your desing was flawed or it was under extreme vibration conditions. I don't know?

I am with Batxel, amp being mounted on the box is not too different than being mounted any where in the vehicle.

Any components that have cold solder joints will break eventually. lol

 

It was definitely under "extreme vibration conditions", it was intended to be used in a missile.

Cold solder joints had nothing to do with it. It was due to the weight of the components and the length of the leads with no additional support.

We hired a couple of mechanical engineers after that

Mount the amp where ever you like. Just an opinion. Good luck.

 

Interesting conversation. Based on my knowledge, it seems that the car vibrates more than the box from extreme bass. The bass vibration from a box is emitted out of the speaker cone and/or ports and all surrounding areas vibrate. It would seem that mounting to the box would be no different, if not safer, than mounting to a vibrating panel in the car. I have mounted amps for years both ways and have never had any issues. I tend to keep my amps for many years too...

 

Ahh Department of Defense at work! Nice! Used to be in the USAF doing PMEL for 4.5 years.