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Single SA-15 D4 on ZX2500.1 (gain pulled down obv)


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Hi, I'm building a system for a friend I've posted about it before on here.

Instead of a 10" in a medium hatch back - we've now decided on a 15" for his BMW 520D E60.

HUGE TRUNK in this so plenty of space - we'll workout ways to get max bass into the cabin- ski hatch, cut out access ports on the solid metal shelf etc...

Ok, here is the problem he bought a used kicker ZX2500.1 for like £80 which is Around 120 dollars. Can I use this on this sub with a correct box - clean signal and Ofcourse pull down the gain and measure till its putting out a reasonable amount of power for the sub to not overload?

Basically SQL SPL type of guy just loud bass not competing!

He can't afford to bump up to a 15" Zv3 so stuck really!

Also I am willing to pay for a solid enough design that would work.

Cheers!

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It'll work. You can DMM it to a general wattage output. Always good to have head room. Just be easy on the gain.

1996 GMC Sonoma
Four Fi BTL Neo 18's In 2:1 6th Order Bandpass
2 Ampere 5k's @ .5

TEAM FI
TEAM #LITHIUMCANTDEMO

 

On 10/20/2013 at 0:37 AM, KillaCam said:

Fucking with a Prius driver is like making fun of a disabled kid. Pussies.

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What head unit will he be using?

It'll work. You can DMM it to a general wattage output. Always good to have head room. Just be easy on the gain.

Can you tell me how to use a DMM to set the wattage output?

Basic terms;

Turn the gain down on the amp, raise the LPF, disconnect the sub wires.

Set the head unit EQ to flat, turn up to the user decided max volume.

Take a DMM and set to VAC.

Put the red lead in the +ve speaker terminal and the black in the -ve terminal

Play a test tone, 40hz will do fine.

Slowly increase the gain until you hit the magic number; personally I'd choose 60v AC or at least to start with, but that's up to you.

Turn the track down!

Disconnect leads

Hook up speaker/woofer

Test!

Periodically check the temp of the dust cap whilst testing (your hand will do)

repeat process until you and SA15 happy

Enjoy

amplifiersettingchart.jpg

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Forgot to add.

This method is by no means accurate as there are too many variables to take into account like; box rise, voltage, temperature etc etc

So use with caution.

Make sure he does NOT use the EQ within the sub range or turn on loud/loudness/MX or anything else that gives nasty peaks as this will most likely result in a melted VC.

What headunit is he using?

What car and boot dimensions is there?

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