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Thinking about adding an amp for my door speakers...

Thinking about adding an amp for my door speakers...

Postby thirdgen [OP] » May 14 2019, 9:57pm

First thing...I don't want to spend a pile of money, I want to keep it simple. I currently have these speakers in my rear doors:
https://www.crutchfield.com/p_107DB652/ ... =105&avf=Y
and plan on buying 2 more and installing them in my front doors.
I also have this head unit:
https://www.crutchfield.com/p_113DDX374 ... p=ddx374bt
I like my stuff so far, but it seems like it just doesn't have the "punch" I want. I was thinking about adding an amp for all 4 door speakers, but I have no idea where to start.
Any guru's care to share any advice?
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Re: Thinking about adding an amp for my door speakers...

Postby dav2no1 » May 14 2019, 10:09pm

I'm running a Alpine 4 channel PDX amp for my doors. It's a really decent amp.
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Re: Thinking about adding an amp for my door speakers...

Postby SierraHarley » May 14 2019, 10:48pm

I had the Alpine Powerpack in my 02 truck. It is so tiny I just zip tied it up under the dash. It puts out 45w x 4 or 90w x 2 RMS and sounds great. You can get one for about $150. Just make sure you get the universal one and not the one for Alpine head units.

I wish I had ripped it out of the old truck.
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Re: Thinking about adding an amp for my door speakers...

Postby thirdgen [OP] » May 14 2019, 11:08pm

I wonder how many watts my head unit is actually putting to the speakers? I also wonder how high I could go while still sounding decent? This does look pretty decent though...
https://www.crutchfield.com/p_500KTP445 ... -Pack.html
Did you need to hook up a power supply from the battery?
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Re: Thinking about adding an amp for my door speakers...

Postby FoxProDenali » May 15 2019, 12:21am

It says right in the specs that HU puts out 22 watts RMS.

It takes little power to move those drivers. But you’re in a moving vehicle that’s noisy. So you need more. Then there’s the issue of ‘clean power’ or the level needed to drive the speakers up to they point they distort but no more. Then there’s the nonsense that RMS power ‘ratings’ of both amps and speakers need to match. So it’s confusing.

Buy the amp that has the most RMS power rating that fits your install and your budget, set the gain appropriately and you’re done.
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Re: Thinking about adding an amp for my door speakers...

Postby SierraHarley » May 15 2019, 10:05am

thirdgen wrote:I wonder how many watts my head unit is actually putting to the speakers? I also wonder how high I could go while still sounding decent? This does look pretty decent though...
https://www.crutchfield.com/p_500KTP445 ... -Pack.html
Did you need to hook up a power supply from the battery?

I had the power to the amp coming from the same fuse that the radio was using. Never had any issue with it.
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Re: Thinking about adding an amp for my door speakers...

Postby GOAT721 » May 15 2019, 12:37pm

I just put those speakers in my truck, they sound great. you will likely notice a difference just by adding them in the front
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Re: Thinking about adding an amp for my door speakers...

Postby thirdgen [OP] » Jun 06 2019, 1:46am

I was thinking about this the other day. My rear door speakers are wired per speaker, but the front wiring (unless I am mistaken) is wired for the pillar and the door to 1 channel. If I get a 45x4 amp, how would I wire it up to only affect all 4 door speakers, but still have the head unit run the pillar tweeters?
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