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Message Forums Car Stereo Message Forums > Subwoofers and Speakers > Beginner Help
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kraus6451
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 Beginner Help

So i wired my car stereo a while ago and then sold it all and now i don't remember anything about amps. Could i have any cheap recommendations for a amp to power a Diamond Audio D112D4.2?

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New Post 01-27-2012 05:26 PM
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tunerguy1000
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 RE: Beginner Help

quote:
Originally posted on 01-27-2012 by kraus6451
So i wired my car stereo a while ago and then sold it all and now i don't remember anything about amps. Could i have any cheap recommendations for a amp to power a Diamond Audio D112D4.2?

Welcome to the forum man. Looks like that Diamond Audio subwoofer takes about 200RMS. What's your price range? If your not looking to spend alot of money I'd probably just go to Wal-Mart or an Xplod amp or something. Wal-Mart definetly is no top of the line equipment but hey if your on a budget, it'll do the job lol

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New Post 01-30-2012 01:03 PM
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kraus6451
New Member

 RE: RE: Beginner Help

quote:
Originally posted on 01-30-2012 by tunerguy1000

Welcome to the forum man. Looks like that Diamond Audio subwoofer takes about 200RMS. What's your price range? If your not looking to spend alot of money I'd probably just go to Wal-Mart or an Xplod amp or something. Wal-Mart definetly is no top of the line equipment but hey if your on a budget, it'll do the job lol



Hey I was thinking 60-80$ if that can get me something alright. I also read that when using a 4 ohm sub you should need a amp with a different RMS, or are there also 4 ohm amps? Also I've found the sub for 60 dollars from onlinecaraudio.com and is this a reasonable price? and if so I would prefer to get the box and amp from here to get free shipping

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New Post 01-30-2012 07:22 PM
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tunerguy1000
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 RE: RE: RE: Beginner Help

quote:
Originally posted on 01-30-2012 by kraus6451
Hey I was thinking 60-80$ if that can get me something alright. I also read that when using a 4 ohm sub you should need a amp with a different RMS, or are there also 4 ohm amps? Also I've found the sub for 60 dollars from onlinecaraudio.com and is this a reasonable price? and if so I would prefer to get the box and amp from here to get free shipping

The number of voice coils and the way you wire your sub to your amplifier will determine what impendance you run at (4 ohm, 2 ohm, 1 ohm, etc.). Depending on what impendance you run at will determine what RMS wattage your subwoofer will get. Lots of posts on this forum and even sites such as Cructchfield can offer more information on all these topics. There is so much to learn and it's pretty damn fun lol

IMO, you could buy alot better system out there for a better deal. Perhaps you would be interested in some combo packages that some online stores offer.

For example: this kit: http://www.sonicelectronix.com/item_39826_600W-Kicker-Autotek-Bass-Package.html?from=857

Or if you have a total amount of money you would like to spend, I can try to look up an affordable setup for you.

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N2Audio
Senior Member

 

since it's a dual 4 you have impedance options of either 2 or 8 ohms.

2 ohms will require a mono amp. Anything in the 200-300w rms range would be reasonable IMO.

The other option would be a 2 channel amp which you would bridge to 1 channel. That would usually be done with a 4 ohm load, but it will work fine at 8. You just need to allow for a reduction in power since you would be running at a higher impedance.
For example, an amp that's normally 300w bridged at 4 ohms would probably be in the 200w range bridged at 8.

Some low cost options:
mtx
audiopipe
autotek
cerwin vega - nice amp, a little rough

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kraus6451
New Member

 

Thanks for the help. I think I'm going with this sub, amp, and box for the . But if there are any other recomendations or if i am making a bad decision let me know.

http://www.onlinecarstereo.com/CarAudio/p_19480_Diamond_Audio_D112D42.aspx

http://www.ebay.com/itm/NEW-APSM-1150-AUDIOPIPE-1-CHANNEL-300-WATT-CAR-AMP-/290605663933?pt=Car_Amplifiers&hash=item43a97286bd#ht_3690wt_1163

http://www.sonicelectronix.com/item_24427_Absolute-MSHF12.html

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New Post 02-02-2012 02:58 PM
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N2Audio
Senior Member

 

Looks like a good low budget set up to me.

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kraus6451
New Member

 RE:

quote:
Originally posted on 02-02-2012 by N2Audio
Looks like a good low budget set up to me.

I saw you use a Lanzar sub and if i wanted step up the sound could i wire these up with the same box?

http://www.amazon.com/Lanzar-VBP251-Channel-MOSFET-Amplifier/dp/B0037Z8H2S

http://www.amazon.com/Lanzar-OPTI1234D-Optidrive-Die-Cast-Subwoofer/dp/B0007L8A5Y/ref=pd_sim_sbs_e_1

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New Post 02-02-2012 05:51 PM
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N2Audio
Senior Member

 

Yep. Lanzar pushed those pretty hard as a small sealed sub - mainly because not that many people want to give up half their cargo area for a sub box.

They work well ported or sealed.

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New Post 02-07-2012 04:00 PM
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kraus6451
New Member

 

So if i wire this with one of these lanzar subs I will do it at 2 Ohms and turn the amp down to half the watts? Or does the wattage automatically get spit by the two channels leaving one of them at 1100 watts which will work for the sub? Sorry for all the questions but i want to make sure i get the right parts and i am real anxious to get it all set up.

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N2Audio
Senior Member

 

You're looking at the peak power ratings on that amp which are ridiculously misleading.
And on their non-optidrive equipment even the RMS ratings are way off.
That amp uses a pair of 30A fuses so its actual total power output is in the 600-700w rms range. That can be accessed in the form of 350x2 at 2 ohms per channel, or 700x1 at 4 ohms bridged.

If that's the amp you choose to go with I'd go with the 4 ohms bridged option. It would look like this:


That amp would be a long way from the top of my list though.

If you want to give a cheap lanzar a shot check out this one: http://www.sonicelectronix.com/item_43579_Lanzar-HTG2100D.html
It will give you the most power at 1 ohm (quite a bit more power than the vbp251). The subs would be wired like this:

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New Post 02-13-2012 12:13 PM
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kraus6451
New Member

 

Hey thanks for all the help i just installed everything but i have a few more questions and am wondering if anyone can answere them.

I used this box http://www.sonicelectronix.com/item_24444_Sonic-Sub-Box-1H12-1.0-Gray.html and the sub doesnt seem to hit low sounds when i turn the volume or gain up. I believe it is because i picked a box with a small volume but im not completly sure. What can fix this if possible, if its a setting or something that i can do to alter the box?

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New Post 02-22-2012 11:25 AM
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tunerguy1000
Member

 RE:

quote:
Originally posted on 02-22-2012 by kraus6451

Hey thanks for all the help i just installed everything but i have a few more questions and am wondering if anyone can answere them.

I used this box http://www.sonicelectronix.com/item_24444_Sonic-Sub-Box-1H12-1.0-Gray.html and the sub doesnt seem to hit low sounds when i turn the volume or gain up. I believe it is because i picked a box with a small volume but im not completly sure. What can fix this if possible, if its a setting or something that i can do to alter the box?



Have you adjusted any of the settings on your amp? (LPF, HPF, etc.).

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New Post 03-02-2012 01:27 PM
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kraus6451
Member

 

Ya i have been trying to fix it with that but im not so sure of what each does and the charicteristics each setting will give.

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New Post 03-03-2012 06:14 PM
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tunerguy1000
Member

 RE:

quote:
Originally posted on 03-03-2012 by kraus6451

Ya i have been trying to fix it with that but im not so sure of what each does and the charicteristics each setting will give.



http://www.crutchfield.com/learn/car/subwoofers/tuning.html?g=120&tp=115

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