It's been a while, here's my 2017 Stereo Revamp...

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Originally Posted by trayson

definitely report back. I'm thinking that if I ever change up my subs in the XLV that I'll likely do almost exactly what you're doing. a pair of dual 4ohm voice coil 12" L7's with the exile 20.1 powering it at 1 ohm.

Although, if you could comment on the idea of just doing it in a sealed enclosure for simplicity and the necessity for a little less airspace, I'd be interested in your thoughts. I've been told that I can get ~3cuft if I cut out the footrest in my XLV, so that seems pretty good for a pair of sealed L7's. I'm sure that ported they'd want more airspace, plus I'm not sure my box building skills are up to doing a ported enclosure...

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How about 2400W rms @ 2 ohm and a wireless sub level control? http://www.kicker.com/kxa24001-2400-watt-mono-amplifier

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Originally Posted by MLA

How about 2400W rms @ 2 ohm and a wireless sub level control? http://www.kicker.com/kxa24001-2400-watt-mono-amplifier

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Looks spendy! Why does it have the same output at 1 and 2 ohm?

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Originally Posted by ian ashton

Looks spendy! Why does it have the same output at 1 and 2 ohm?

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Using 2013 KX2400.1 retail price, it comes out to $.46 p/watt rms. For comparison, the xm20.1 is about $.38 p/watt rms. So very close.

The amp is 1 ohm stable, which allows for the flexibility to bolt up to an existing woofer setup that might be 1 ohm. However, its rms is based on 2 ohm, which is its ideal operating impedance. If you look close, Kicker states that you may see a 10% +/- rms @ 1 ohm This because they built it to safely run a 1 ohm load, but designed its power output for a 2 ohm load.

I wasn't knocking it, I've had great luck with Kicker products in our boats :)

I've just never seen matched output ratings and varying loads.

That said, I'm not a stereo guru like you guys, lol

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Originally Posted by ian ashton

They sound great, the 20.1 seems to drive them really well.

I find it impossible to believe that you can only fit 3 cubic feet in an XLV - the enclosure I have in my OBV is 3.3 cubic feet plus the port, lol.

I wanted the output and efficiency of a ported enclosure, and like the idea of being able to play with the port to tune it.

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I did some 'guess' measuring last night. and assuming what I could get based on not really remembering what obstacles would exist once I removed the foot rest, I'm thinking I'd have up to 4 cuft. That said, if I ever did it, I'd likely stick with a sealed because it'd be harder for me to screw it up and a lot easier to build.

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Originally Posted by MLA

How about 2400W rms @ 2 ohm and a wireless sub level control? http://www.kicker.com/kxa24001-2400-watt-mono-amplifier

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Looks like a killer amp.

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Originally Posted by MLA

Using 2013 KX2400.1 retail price, it comes out to $.46 p/watt rms. For comparison, the xm20.1 is about $.38 p/watt rms. So very close.

The amp is 1 ohm stable, which allows for the flexibility to bolt up to an existing woofer setup that might be 1 ohm. However, its rms is based on 2 ohm, which is its ideal operating impedance. If you look close, Kicker states that you may see a 10% +/- rms @ 1 ohm This because they built it to safely run a 1 ohm load, but designed its power output for a 2 ohm load.

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My options honestly on power would be to keep my existing PPI P1000.1 and get a second one and have each amp going to an L7. Or I could sell off the PPI P1000.1 and power both L7's with an Exile 20.1

I am leaning towards the Exile. I'm friends with Brian and could likely get a price hookup from him that would make the kicker prohibitively expensive. If the choice was a pair of PPI 1000.1 amps or a single Exile 20.1, What would you choose?

I have seen this approach a lot. There are varying degrees of regulation among amplifiers. The ability to accept a 1-ohm load can add another product application in offering more versatility in subwoofer combinations. So it would be easy enough to decrease the supply voltage when terminating into a 1-ohm load and keep the amplifier in a safe mode. This would provide better thermal stability. True, no additional power at 1-ohm versus 2-ohm, but with every amplifier the supply IS limited. A better scheme than perhaps losing 35% of the power at 2-ohms....and because when is 2400 watts not enough.

https://www.dropbox.com/s/nl7sspxalo...20AM.jpeg?dl=1

Volt Meters mounted behind the grille fabric, so they are kind of hidden unless you look at them straight on.

I might change this, can't decide if I like it or not.

MinersMoss floor back in and trimmed for the new enclosure, forgot to post this the other day;
https://www.dropbox.com/s/v8rvyl47v4...20AM.jpeg?dl=1

I've never been super happy with the paint job that I gave my XM9s, and after 3 seasons they were showing some wear, so I scuffed them down and re-sprayed last night. So far they have come out much nicer than before :)

https://www.dropbox.com/s/zhoc5jpi5o...%20PM.jpg?dl=1

How do you attach the trim panel to the sub box? Are the subs screwed through the trim panel and into the sub box? If so, did u use a gasket or sealant between trim panel and sub box to make sure its sealed? Thanks!


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