Disappointed in 2500d

Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=53374
Printed Date: April 29, 2024 at 1:38 AM

Topic: Disappointed in 2500d

Posted By: invictuz
Subject: Disappointed in 2500d
Date Posted: April 06, 2005 at 8:21 AM

I replace four RF301m amplifiers (one for each sub) with the 2500d.
Its loud but lacks the something in the bass.
The RF301m seemed to have more impact with the 10s hit...
i am thinking about removing the 2500d and reinstalling my 301m's

i have tweaked the 2500d settings for over a month and cannot get the same quality of bass the 301m's provide with the same subs/box/deck

Config:::

1997 Jeep Grand Cherokee w/5.2liter
120 amp alternator (already upgraded from stock 90amp)
Alpine 9833 control unit w/3 4 volt pair of outs
Biggest battery i found at Schucks (not optima)

4X MTX81044a DVC wire to 1.3ohm
1X Orion 2500d
1X RF301x (front door 600cs and dash 1001t infinity)
1X JVC AX4750 (rear door 6000cs Infinity)
4X 6000CS Infinity (each door)
2X 1001T Infinity
4X .5 farad caps (one for each 301m)

4 way Distribution/fuse block (aka door block)
2 way Distribution/fuse block (aka sub block)
0g running from battery to Sub Block (17 feet)

4g running from Sub Block to Door Block (1.5 inches)
4g running from Sub Block to Farad 1 pos
4g running from Sub Block to Farad 3 pos
8g running from Door Block to JVC amp
8g running from Door Block to MTX amp

4g running from farad 1 pos to farad 2 pos =Cap Bank 1
4g running from farad 3 pos to farad 4 pos =Cap Bank 2

4g running from Cap Bank 1 to 2500d power input 1
4g running from Cap Bank 2 to 2500d power input 2

12g runs for all speaker wire
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Replies:

Posted By: lspker
Date Posted: April 06, 2005 at 9:36 PM

Could you be a little more specific about the "quality of bass". You maybe lacking in your power supply. The 2500d can draw ~280 amps of current, and if it's straved for power it counld affect the fullnest of bass.

Posted By: Alpine Guy
Date Posted: April 06, 2005 at 10:11 PM

I think Ispker hit it on the nail, you are starveing that amp majorly! You need at least a 200 amp alternator to keep up with that set up. Just imagine yourself strapped to a horse buggy and a straw taped to your mouth, all you can do is breath through the straw. Now you start running out of breath so the guy rideing in the buggy starts whipping you to make you run faster ( cranking the volume) and you just can't do it so you slow down or pass out....

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2003 Chevy Avalanche,Eclipse CD7000,Morel Elate 5,Adire Extremis,Alpine PDX-4.150, 15" TC-3000, 2 Alpine PDX-1.1000, 470Amp HO Alt.

Posted By: KarTuneMan
Date Posted: April 06, 2005 at 10:23 PM

What a perfect analogy............

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Posted By: supradude
Date Posted: April 06, 2005 at 10:27 PM

That 2500D should beat the crap out of those subs. Give it the juice and turn it loose. More power please; that is what it would say if it could talk.

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'85 Toy

Posted By: ss-installer
Date Posted: April 07, 2005 at 4:52 PM

nice one alpine guy.

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Posted By: jeffchilcott
Date Posted: April 07, 2005 at 7:37 PM

wow, if you really want bass, whit that many subs build a single larger box with each sub ported

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2009 0-1000 Trunk WR 154.0DB 2009 1001+ Trunk WR
2007 USACI World Champion
2007 World Record
2006 USACI Finals 2nd Place

Posted By: Drewt
Date Posted: April 07, 2005 at 8:46 PM

try putting a really big battery in the back too.