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Old Jan 4, 2007 | 08:27 PM
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Default adding more subs

I have 2 diamond d3's right now in a sealed box, and i was thinking about getting either one or 2 d3 's more. I would be putting each other the new 2 in there own boxs on the sides of my trunk, but would 3 or 4 be that much louder than the 2 i already have. I could also put the 2 i have now in a ported box. Or maybe ditching the d3's and getting something else. I have two d3 amps are that 600 rmws at one ohm so i could get something new as well. Just looking for some info.
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Old Jan 5, 2007 | 11:29 AM
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Default Re: adding more subs (sony224422)

fcm if youre still alive i'd like some input from you
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Old Jan 5, 2007 | 03:03 PM
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Default Re: adding more subs (sony224422)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by sony224422 &raquo;</TD></TR><TR><TD CLASS="quote">but would 3 or 4 be that much louder than the 2 i already have. </TD></TR></TABLE>

What does that much mean? Will it be louder-&gt;yes

Cant really understand what your expectations are.
What are you unhappy with in your current setup?
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Old Jan 5, 2007 | 03:51 PM
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Default Re: adding more subs (nsxxtreme)

What kind of car is it.
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Old Jan 5, 2007 | 04:31 PM
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Default Re: adding more subs (sony224422)

Ditto the above. Need more info.
Although, [on paper] doubling the cone area should gain you 3dB, [twice as loud], also another 3dB when you double your wattage, however if not done properly, [subs firing in all sorts of directions] you can end up with little or no increase in output, even less, [can you say cancellation, I knew you could]

I would ask you the same thing as nsxxtreme what are you looking for that you do not have now? 94
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Old Jan 5, 2007 | 04:47 PM
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Default Re: adding more subs (fcm)

Model numbers please. One amp or two amps? D4 or D2? How wired?
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Old Jan 5, 2007 | 09:47 PM
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Default Re: adding more subs (misanthropist)

i have two diamond d3 dual 2's on a diamond d3 amp at ohm (600 wrms). They are in a sealed box firing towards the back of the car ( 96 accord). I have another d3 amp. My goal is more SPL but the way i would have the subs would be like this i think.


I am happy with what i have now, but i would like to go bigger, so thats why im wondering about 4 subs. Or, i was thinking since i've had this setup for over a year or two, it might be time for something new, in which case i was looking at something like RE or something.
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Old Jan 6, 2007 | 12:38 AM
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Default Re: adding more subs (sony224422)

The diamond D3 amp you're referring to makes 600rms @ 1ohm, not at 2ohm where you're running it at. Swap out the subs for dual 4's and you'll notice a huge difference
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Old Jan 6, 2007 | 08:36 AM
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Default Re: adding more subs (sony224422)

I have to agree with misanthropist, the d3 amp is 600W into 1 ohm, and with 2 DVC 2 ohm subs you can wire them to 8 ohms, [series] 2 ohms, [series/parallel] or .5 ohms, [parallel], I assume the amp is not stable below 1 ohm, so if the subs are wired for a .5 ohm load you would have overheating problems, and if they are wired for an 8 ohm load the amp would have little output, [low wattage, something like 75W]
So it sounds like you are running a 300W into 2 ohms system.
I can't get into DIAMONDs site for some reason so I can't look up specs on the subs and amps but from what I can find out the subs are the D312D2 a 12" DVC 2ohm 400W sub.
So it sounds like you are running an 800W sub system with a 300W RMS amp, [@ 2 ohms] kind of under powered wouldn't you say.
Maybe all you need is a 1x800W RMS into 2 ohms amp, it would make a big diff.
I am not sure I agree that changing the subs to D4s will help much, although going from 300W to 600W would make a diff. you would still be underpowered by 200W, as the DVC 4 ohms are also 400W continuous power handling subs.

There is one more option, you have 2 of the amps, connect one to each sub, 1x600W RMS into 1 ohm, [VCs paralleled] you would have to be careful with the gains on the amp, [as you are now overpowered by 200W to each sub] but you would have "dynamic headroom" galore, and that would definitely make a diff. 94
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Old Jan 6, 2007 | 09:49 AM
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Default Re: adding more subs (fcm)

shizz they are daul 4 then. They were matched at the shop, i forgot what does what. But i know they are wired down to 1 ohm. atleast i think they were, im going to check. But say they are.

I think the subs are only rated for 300 wrms, although i keep seeing different numbers for them. I can't get on the site either, but i remember when i got them the amp and subs matched perfect. But they might be 400 wrms.

but i have a chance to get the amp, and subs for almost nothing, so thats why i was wonder if that set up woul work or if it would cancel out the others.
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Old Jan 6, 2007 | 10:52 AM
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Default Re: adding more subs (sony224422)

Cancellation can be a problem, and it can be severe, I was judging an dB drag contest once and was asked by a participant why the hell his 8x12" 1000W system was being beat by a guy with 500W and 2x12", and although other factors where involved, the 2x12" 500W system was in a CRX and his 8x12" 1000W system was in a S10 W/ a cut through, 4 subs on each side, almost directly facing each other, [facing up at about 20 deg.]
I disconnected, [amp trigger lead] one of the 2 amps, he gained over 3dB on his next pass, half the power, half the subs twice as loud.

All the info I found for the subs indicate they are 400W, so even if they are DVC 4 ohms, you are still underpowered by 200W.

If the amp and subs are cheap and you get them, try this, do a "clam shell" isobaric system, all subs must be DVC 4 ohms, Here is some info on it... http://mobile.jlaudio.com/supp...d=153 you can use the box you have to try it, and use one amp for each isobaric set.
Again, keep in mind you will still be underpowered but you should gain some output, 3dB or so. 94
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Old Jan 6, 2007 | 10:55 AM
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Default Re: adding more subs (fcm)

how do you do that.. i don't get how you have 2 facing eachother like that. wouldn't they hit eachother?
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Old Jan 6, 2007 | 10:59 AM
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Default Re: adding more subs (sony224422)

okay i read more about it and see how its made. It looks really easy. So i just have to just hook it up and put the subs facing eachother? i just don't get how it works, wouldn't that be like too small of a box or free air?

i think i get the idea of it, being that i just cut a peice of mdf for the size of the mounting holes. and just screw it into the box too. Is this going to be strong enough for hitting bumps and stuff, like the sub isn't going to break off or anything will it. Although i guess its the same idea as inside the box
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Old Jan 6, 2007 | 11:04 AM
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Default Re: adding more subs (sony224422)

forget about the diamonds and that weak amp

if you want big go with a solox 18 and a rediculously huge amp
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Old Jan 6, 2007 | 11:08 AM
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Default Re: adding more subs (nate_2k5)

okay well im still not asking about the tranny anymore, i've established that it will hold up to 250, im looking for turbo componet help, not which tranny rotates which way
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Old Jan 6, 2007 | 11:17 AM
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Default Re: adding more subs (sony224422)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by sony224422 &raquo;</TD></TR><TR><TD CLASS="quote">okay well im still not asking about the tranny anymore, i've established that it will hold up to 250, im looking for turbo componet help, not which tranny rotates which way</TD></TR></TABLE>

wtf, how did you just turn your sub thread into a auto tranny thread?
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Old Jan 6, 2007 | 01:34 PM
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Default Re: adding more subs (nate_2k5)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nate_2k5 &raquo;</TD></TR><TR><TD CLASS="quote">forget about the diamonds and that weak amp

if you want big go with a solox 18 and a rediculously huge amp</TD></TR></TABLE>

Not the best advice. Diamond Audio makes some fantastic stuff, and I wouldn't call 600rms a weak amp by any means.
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Old Jan 6, 2007 | 01:55 PM
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Default Re: adding more subs (misanthropist)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by misanthropist &raquo;</TD></TR><TR><TD CLASS="quote">Not the best advice. Diamond Audio makes some fantastic stuff, and I wouldn't call 600rms a weak amp by any means. </TD></TR></TABLE>

weak compared to the 5000 watts rms that the solo x requires
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Old Jan 6, 2007 | 02:28 PM
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Default Re: adding more subs (nate_2k5)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nate_2k5 &raquo;</TD></TR><TR><TD CLASS="quote">

weak compared to the 5000 watts rms that the solo x requires</TD></TR></TABLE>

Do you really think that's what the op is looking for?
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Old Jan 6, 2007 | 02:32 PM
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Default Re: adding more subs (misanthropist)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nate_2k5 &raquo;</TD></TR><TR><TD CLASS="quote">

weak compared to the 5000 watts rms that the solo x requires</TD></TR></TABLE> I think he meant, when he said "not the best advice" that advising someone who is asking if he should get, [cheaply] what he already has so he can "double up" the system he already has, and is OK with, and asking for info on how that can be done, now comes the not the best advice part, Your advice is for him to go out and buy a 5000W sub and an amp to drive it.
How much can you pick that up for, can you get him a good deal?

Also does that include the 500A alt. to power the system? 94
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Old Jan 6, 2007 | 02:45 PM
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Default Re: adding more subs (sony224422)

if ur not happy with ur curent setup why keep adding more dimond audio theres nothing wrong with dimond but you could just sell ur old setup and purchese a more agresive setup there a some single sub setups that are really loud i dont think its worth taking all the space up
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Old Jan 6, 2007 | 02:47 PM
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Default Re: adding more subs (nate_2k5)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nate_2k5 &raquo;</TD></TR><TR><TD CLASS="quote">

weak compared to the 5000 watts rms that the solo x requires</TD></TR></TABLE>


solo Xs are cool but that size of a box in a accord is alittle much
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Old Jan 6, 2007 | 08:37 PM
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Default Re: adding more subs (qwk db8)

whoops i replyed in the wrong too forums. this is what i meant.


well i already have them all.
FCM is there any other options i have? I mean i'll probably do this until im sick of not having trunk space, but theres really not way i can strap 2 amps together on 2 subs is there. and will i be fine using the sealed box i have.. i noticed they used a ported on in the example

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Old Jan 7, 2007 | 07:11 AM
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Default Re: adding more subs (sony224422)

There are a number of things you can do, the clam shell isobaric. [w/one amp on each set, with the sealed box you have] is just the easiest way for you to try something with what you have.
You may find you like it, [isobaric] enough to maybe try it with a custom ported box, maybe with one of the other isobaric configurations.
Another option would be to a sub floor, [spare tire well sub box] using either isobaric or "standard" 4 speaker configuration.
I have not been able to get into the site so I can't get info, [T/S parameters] or recommended box volumes, so it is hard to say what else can be done.
Obviously the easy thing to do is get rid of what you have and start again, but it is also, obviously, the most expensive route to take, and just as obviously, maybe I am wrong, a 5000W sub and amp to drive it was not what you are looking for, if I am wrong, we do have an MTX Jackhammer and the two 3000W MTX amps needed to drive it at the store, and the sub is on sale, you can pick it up for $9,999.99 CDN.
The true 22... http://www.thetrue22.com/ I absolutely guaranty you will only need one of them, although you will have to give up your back seat, and oh yea, you will have to beef up the suspension. 94
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Old Jan 7, 2007 | 10:42 AM
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Default Re: adding more subs (fcm)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by fcm &raquo;</TD></TR><TR><TD CLASS="quote">There are a number of things you can do, the clam shell isobaric. [w/one amp on each set, with the sealed box you have] is just the easiest way for you to try something with what you have.
You may find you like it, [isobaric] enough to maybe try it with a custom ported box, maybe with one of the other isobaric configurations.
Another option would be to a sub floor, [spare tire well sub box] using either isobaric or "standard" 4 speaker configuration.
I have not been able to get into the site so I can't get info, [T/S parameters] or recommended box volumes, so it is hard to say what else can be done.
Obviously the easy thing to do is get rid of what you have and start again, but it is also, obviously, the most expensive route to take, and just as obviously, maybe I am wrong, a 5000W sub and amp to drive it was not what you are looking for, if I am wrong, we do have an MTX Jackhammer and the two 3000W MTX amps needed to drive it at the store, and the sub is on sale, you can pick it up for $9,999.99 CDN.
The true 22... http://www.thetrue22.com/ I absolutely guaranty you will only need one of them, although you will have to give up your back seat, and oh yea, you will have to beef up the suspension. 94</TD></TR></TABLE>

lol that sub is rediculous, anyone that buys that is asking for instant hearing loss, broken ****, and ultimately death
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