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Location:
Epping, Sydney
Registered:
April 2003
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So how much of a bad idea is it to mount my amp onto my sub box?
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Wed, 21 April 2004 05:46
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I have run out of alternatives.
I will get some "H" shape rubber mounts to isolate the amp eventually.
I have heard that the vibrations can affecty the circutry.
I will have the box kinda rectangle filling up the space behind my seats about 10 cm away from the top edge of the seats.
Sub will go behind the driver's side rear seat, amp on the box but behind the passenger side rear seat on the box. Sound ok? 
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Location:
Northwestern Sydney
Registered:
August 2002
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Re: So how much of a bad idea is it to mount my amp onto my sub box?
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Wed, 21 April 2004 05:49
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You'll end up with problems with you RCA plugs vibration loose in the short term and in the long term possibly other components vibrating loose.
Can't fix it to the rear seats? boot floor?
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Location:
Epping, Sydney
Registered:
April 2003
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Re: So how much of a bad idea is it to mount my amp onto my sub box?
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Wed, 21 April 2004 06:11
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well dude the thing with the floor is that I kinda am changing the shape of my box to a custom skinny one mounted at the back of the seats. This way I can have more floor space in my boot, so I don't really want to put the amp there.
Rear seats will be obscured by the box.
my dillema hehe
RCAs will be mounted on the vertically "up" part of the amp, so they won't fall out. Amp power + speaker screws down the bottom. I can forsee these perhaps coming loose, but am really stuck for alternatives
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Location:
Sydney
Registered:
June 2003
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Re: So how much of a bad idea is it to mount my amp onto my sub box?
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Wed, 21 April 2004 06:15
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You have already had it like that for a while though. Although not direclt on it, still attached.
Dont do it unless you have some mounts though.
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Location:
Northwestern Sydney
Registered:
August 2002
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Re: So how much of a bad idea is it to mount my amp onto my sub box?
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Wed, 21 April 2004 06:31
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Sorry I ment the RCA plugs on the Amp the Gold (silver) surrounds where you plug your RCA cord in come loose as they generally aren't soldered to the board.
If there is no room for the amp between the seat and the box (sorry I don't know the later Celica's boots that well) you could mount it on the box but some insulation would be good
Mount it on the roof???
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Location:
Sydney
Registered:
June 2003
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Re: So how much of a bad idea is it to mount my amp onto my sub box?
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Wed, 21 April 2004 06:34
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Later model?? You count the 162 as a late model?
Roof sounds cool.
No there is no room between the seats and the box.
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Location:
Epping, Sydney
Registered:
April 2003
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Re: So how much of a bad idea is it to mount my amp onto my sub box?
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Wed, 21 April 2004 06:38
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here's a pretty picture for you.
because of the angle of the seats this is only going to protude 9.5cm into the boot
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Location:
Northwestern Sydney
Registered:
August 2002
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Re: So how much of a bad idea is it to mount my amp onto my sub box?
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Wed, 21 April 2004 06:41
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I meant later models than the REAL Celicas
You Know the TA/RA ones
Bahahahahahaaaaaaa....... 
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Location:
Northwestern Sydney
Registered:
August 2002
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Re: So how much of a bad idea is it to mount my amp onto my sub box?
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Wed, 21 April 2004 06:43
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You have obviously already built the box???
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Location:
Epping, Sydney
Registered:
April 2003
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Re: So how much of a bad idea is it to mount my amp onto my sub box?
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Wed, 21 April 2004 07:04
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no i haven't just designed it was gonna build it now unless you had some words of wisdom
like how good the ST162 celicas are lol 
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Location:
Sydney
Registered:
June 2003
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Re: So how much of a bad idea is it to mount my amp onto my sub box?
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Wed, 21 April 2004 07:10
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Oh. Yes of course should have realised it.
Dude if you are going to put some nice rubber mounts on anyway, what's the problem?
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Location:
Northwestern Sydney
Registered:
August 2002
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Re: So how much of a bad idea is it to mount my amp onto my sub box?
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Wed, 21 April 2004 07:14
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1. that is a pretty big box for 1 sub
2. cut out a rebate at the base of the box so the amp fixes to the floor and the box covers it.
3. ST162 Celicas rock.
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Location:
Epping, Sydney
Registered:
April 2003
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Re: So how much of a bad idea is it to mount my amp onto my sub box?
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Wed, 21 April 2004 07:31
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2. cut out a rebate at the base of the box so the amp fixes to the floor and the box covers it.
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my amp is 32cm long *teehee* so that would look dumb methinks.. the amp sticking 1/2 out - whatever happens my boot can't look dumb
it is a good sub and that is the recommended volume for it.. I can't argue with the specs...
point #3... very gracious of you there
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Location:
Northwestern Sydney
Registered:
August 2002
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Re: So how much of a bad idea is it to mount my amp onto my sub box?
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Wed, 21 April 2004 07:38
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O.K big sub...Bigish Amp. 55 litre box Hmmmm.
Will the box at current size cover the spare wheel well?
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Location:
Epping, Sydney
Registered:
April 2003
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Re: So how much of a bad idea is it to mount my amp onto my sub box?
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Wed, 21 April 2004 07:42
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no it fits JUST inside the hump created by the wheel and that bit of masonite. Quite nice really..
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Location:
Canberra
Registered:
April 2003
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Re: So how much of a bad idea is it to mount my amp onto my sub box?
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Wed, 21 April 2004 07:49
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hey rob if that doesn't work you could always mount the amp under one of the front seats. You seen my setup and that works heaps good, sounds better now that a friend showed me how to tune it 
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Location:
Epping, Sydney
Registered:
April 2003
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Re: So how much of a bad idea is it to mount my amp onto my sub box?
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Wed, 21 April 2004 07:53
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hehe yeah dude I would like to do that, but a) the amp moves around quite a bit with my driving and b) I often carry passengers in the back, and that means they would be standing on the amp 
just to do with that little hump at the front of the front seats and when there amp ends up sliding too
My brother has this setup in his Supra and it really doesn't work, and he has more room than me in the back
but totally thanks for the idea dude... just don't work for me
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Location:
Northwestern Sydney
Registered:
August 2002
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Re: So how much of a bad idea is it to mount my amp onto my sub box?
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Wed, 21 April 2004 07:53
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If you're happy to see the Amp (I wouldn't be for security reasons) And you're happy to use some sort of rubber insulation to secure the amp. that will prolong the amps life (and it's possible that you won't have problems) Go for it.
I was trying to think of some alternative installations but all have flaws.
Off the top of my head using the current box design
Amp locations:
In the side of the Boot (thinks I tryed this in an Ra40)
under the rear seat (creates Cooling issues)
under driver/passenger seat.
Roof (don't laugh saved me buying 2 new amps, however hard to secure)
front of car in front of radiator (intercooler style - Very Rice)
The other thing to mention check to see if the Sub's magnet will fit in a box that shallow. (before you spend all the time building the box.
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Location:
Epping, Sydney
Registered:
April 2003
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Location:
Canberra
Registered:
April 2003
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Re: So how much of a bad idea is it to mount my amp onto my sub box?
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Wed, 21 April 2004 08:00
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| RobST162 wrote on Wed, 21 April 2004 17:53 |
a) the amp moves around quite a bit with my driving and b)
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I thought that was why you were suppose to use screws to hold it down 
hey thats cool man
Yeah I'd just go ahead with your plan
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Location:
Northwestern Sydney
Registered:
August 2002
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Re: So how much of a bad idea is it to mount my amp onto my sub box?
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Wed, 21 April 2004 08:12
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Hey, well if you're putting in a parel shelf go for it...
More words of wisdom if the parcel shelf is made if timber of any other vibration prone solid material. locate some ports to let sound waves pass through and make sure that you put some foam insulation (or similar) around anything it touches to kill vibration and stick a little piece of foam under the number plate.
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Location:
Sydney
Registered:
September 2003
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Re: So how much of a bad idea is it to mount my amp onto my sub box?
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Wed, 21 April 2004 08:59
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Its upto you it wont damage anything, and the rca's falling off is unlikely unless they are cheap. I have my new 2k amp stuck to my box which i know is not the best security wise, but cant be bothered fixing it when its all going in the celica where i will make a custom install with a false floor in the boot.
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I supported Toymods
Location:
Perth
Registered:
May 2002
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Re: So how much of a bad idea is it to mount my amp onto my sub box?
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Wed, 21 April 2004 09:19
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Why don't you just mount it under your seat?
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Location:
Brisbane
Registered:
October 2002
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Re: So how much of a bad idea is it to mount my amp onto my sub box?
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Wed, 21 April 2004 09:24
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unless u have built a very shitty box there will be no vibratins at all {well almost none} so it wont be a problem with mounting to the side.
that box looks huge, what model sub is it and what size does it say to use.
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Location:
Brisbane
Registered:
June 2003
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Re: So how much of a bad idea is it to mount my amp onto my sub box?
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Wed, 21 April 2004 10:07
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agree 100% with phil here
If you built it right, the amount of vibrations in it wont hurt anything. Only thing to consider is ventilation of your amp. If mounting it like that is covering vents, you may cook the amp.
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Location:
Brisbane
Registered:
October 2002
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Re: So how much of a bad idea is it to mount my amp onto my sub box?
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Wed, 21 April 2004 10:24
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do not under any circumstances mount it upside down, u may as well throw it away now, cause the circuitry gets hot and the heat rises UP to the heat sinks and dissipates, if u mount it upside down all the heat will go into the board
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Location:
Bundaberg, Qld.
Registered:
May 2002
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Re: So how much of a bad idea is it to mount my amp onto my sub box?
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Wed, 21 April 2004 11:46
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in the 8 years i did audio install i never had a problem with amps being mounted on sub boxes.
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Location:
Sydney
Registered:
January 2003
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Re: So how much of a bad idea is it to mount my amp onto my sub box?
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Wed, 21 April 2004 13:50
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For the sub in my bedroom I have the amp mounted in the box 3 years old and still going strong. I cant see any problems with it, just make sure you put in some rubber surround like you are proposing to stop any nasty buzzing.
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Registered:
May 2002
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I supported Toymods
Location:
Perth
Registered:
May 2002
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Re: So how much of a bad idea is it to mount my amp onto my sub box?
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Wed, 21 April 2004 14:22
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I put mine under the seat so it was hidden, and it gets fairly hot in the peak of summer, but seems to survive pretty well.
The only real issue I have with mounting it to the box itself is it makes it easy to steal. They only have to grab one thing.
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Location:
Adelaide
Registered:
March 2004
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Re: So how much of a bad idea is it to mount my amp onto my sub box?
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Wed, 21 April 2004 15:04
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Many OEM, lower quality manufacturers make subs in pre-made boxes with amps INSIDE the box. I don't know what this would be like in terms of heating problems, but it could be something to think about?
I know your amp is larger than your current box - but if you widen the box and decrease it in some other dimension, it's going to keep the same volume.
Just some thoughts...
Tom.
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Location:
Sydney
Registered:
October 2003
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Re: So how much of a bad idea is it to mount my amp onto my sub box?
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Thu, 22 April 2004 02:47
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I built a box in my old 162 that spanned the length of the boot, was fairly narrow so you could (almost) get the spare tire out. Also had a parcel shelf above it with 2 6*9 boxes as part of the whole box. Looked smick Still working out what I'm going to do for my car now - but thats after I get the damn thing running
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Location:
Epping, Sydney
Registered:
April 2003
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Re: So how much of a bad idea is it to mount my amp onto my sub box?
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Thu, 22 April 2004 08:36
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boys!
She's in! Very very schmick
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do not under any circumstances mount it upside down, u may as well throw it away now, cause the circuitry gets hot and the heat rises UP to the heat sinks and dissipates, if u mount it upside down all the heat will go into the board
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rofl.. hahahha now you would HAVE to be an idiot to do that
anyway, I will take some pix if I can. Sits out about 10cm from the back seats. Basically just like my diagram up top. Funny that.
Have 6x9s in the parcel shelf till i get something better. VERY dodgy sony xplods
But can get the tire in and out no prob. Amp is mounted flush on the box.
But yeah, pix coming
But looks a treat. I have my boot back
Thanks SO much everyone. Glad to hear I wont vibrate my amp to death.
Box was built using 16mm MDF. A decent number of screws and sellys all-clear in all the joint surfaces. sealed baby! I make good boxes.. mwah ha
had to taper the edges though to accomodate some little parcel shelf clips I have forgotten about
THAT was a bitch to do. I hate funky stuff haaha... and you should see the pile of MDF powder outside my room. haha
anyway pix soon
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Location:
Brisbane
Registered:
October 2002
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Re: So how much of a bad idea is it to mount my amp onto my sub box?
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Thu, 22 April 2004 08:54
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| RobST162 wrote on Thu, 22 April 2004 18:36 |
Have 6x9s in the parcel shelf till i get something better. VERY dodgy sony xplods
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isnt all XPLOD stuff dodgy
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Location:
Epping, Sydney
Registered:
April 2003
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Re: So how much of a bad idea is it to mount my amp onto my sub box?
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Thu, 22 April 2004 09:05
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[isnt all XPLOD stuff dodgy
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shaw is! Which is why the only reason I have them is because they were given too me
better than what I had before though.. hehe
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Location:
Albany WA
Registered:
October 2003
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Re: So how much of a bad idea is it to mount my amp onto my sub box?
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Fri, 30 April 2004 13:59
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Have a pair of 12" Xplod subs (they were cheap!) run by a pair of Xplod 444 amps (I had one lying around...) 16 od mm MDF with a timber frame box (what vibrations?) bunged in the back of my '86.... goes heaps harder than the 8" venoms in the lux! (single cab!) Remember, there is nothing wrong with cheap car audio gear unless you mainly listen to it when your vehicle is off, or you have a Lexus with no noises or vibration.
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Location:
Epping, Sydney
Registered:
April 2003
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Re: So how much of a bad idea is it to mount my amp onto my sub box?
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Thu, 03 June 2004 02:25
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Guys
just want to say thanks for all the help
the box is now built and in the car..
I got more pix on my site
the only thing that turned out to be a real pain, was a) making sure it was deep enough for the sub and b) having to cut the corners off the box to make way for the parcel shelf clips so the box had like large bevels on the left and right top corners. SUPER PAIN to make them and keep it all sealed etc...
but works a TREAT now
AMP is screwed into box for now till I get mounts, but thanks for all your help
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