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RadCman7

Need some advice on a new system

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I'm not new to car audio just been a few years since I've had to put together a system. I'm getting a 2012 Mazda 3 hatchback soon and I'm already planning on getting a little system for it. I'll be taking some components out of my truck and selling off the rest with it.

Headunit is Pioneer AVH-X4700BS

Amp NVX JAD900.5

I have these in my truck now with a Sundown SD-3 10" will sell

I plan to get the NVX V-Series components in 6.5" and the coaxial in 6x8 for the rear door. 

As far as subs I'm not wanting anything large as far as box size/sub size. I loved my SA-8 v1 I had years ago. The amp does 440w at 2ohm which configuration would give me the best output and quality? Not looking to get super loud just a little more than the SD-3 in a down firing box under the back seat. Figured any of these in a ported box would be louder.

2 Sundown SA-6.5

1 SA-8 v3

1 X-8

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Welcome to SSA! 

I would go with the D4ohm SA-8, wired to a 2ohm load. Unless you planning on upgrading the amp down the road, then I'd get the X-8. Would only run the 6.5's if mounting space is an issue.

 

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I vote for neither.  The X is ridiculously large for an 8" driver and the SA is not too far off.  They're not horribly efficient drivers either.  Both require at least half a cube for a vented enclosure.  After you add in the vent, the actual  enclosure will be at or more than 1 cube gross.  I'd run a single 12 sealed in that space.  You gain efficiency by the increase in cone area and most likely excursion as well, so you're compounding here. 

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I was leaning more to the sa-8, the box shape would need to be long and narrow. I feel like the depth of a decent 12 would have the box much wider. I really liked my sa-8s when I had them. Would the single sa-8 in a ported box be louder than my sd-10 in a sealed on the same power?

I really don't plan on running much more than listed just want something that's going to take up little to no space but still have a little bump.

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Get the car, measure out the rear hatch, then come back and discuss enclosure design. My son has a Cruze hatch with similar space and had no problems with a pair of 10s ported and tuned. I’m sure a single ported 12 would have worked also. 

Welcome to SSA !!!

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:WELCOME:

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10 hours ago, Randal Johnson said:

Get the car, measure out the rear hatch, then come back and discuss enclosure design. My son has a Cruze hatch with similar space and had no problems with a pair of 10s ported and tuned. I’m sure a single ported 12 would have worked also. 

Welcome to SSA !!!

I know the car can fit a decent size box. However I'm wanting something smaller that's not going to take up much room, which is why I wanted the 8". Just trying to see out of the subs listed on the 440w would sound the best.

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Welcome to SSA.  Can I insert the SSA F8L as an option?  ;)

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Also I have a pair of Polk audio db 6.5components and 6.5 coaxial in my truck, would it be worth taking those out and selling the NVX I got? I got the NVX as a gift so not worried about losing on them if the Polks would be better, they are just a few years old if that makes any difference.

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1 hour ago, Aaron Clinton said:

Welcome to SSA.  Can I insert the SSA F8L as an option?  ;)

Nice looking sub just worried like the sa-8 that it will be under powered.

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15 minutes ago, RadCman7 said:

Nice looking sub just worried like the sa-8 that it will be under powered.

It doesn't need gobs of power.  Side note, the SBS Acoustics 8" sub is on sale right now. ;)

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12 hours ago, RadCman7 said:

Nice looking sub just worried like the sa-8 that it will be under powered.

The SA is rated 500 so perfect match. That said, the F8L is the same sensitivity so would have the same SPL on that power. Just glancing at the spec's I would assume the FL8 will play lower/dig deeper . If your into that kind of thing. 

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