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Old 04-03-2007, 08:15 AM   #1 (permalink)
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Default Forester XT Subwoofer possibility...

I think I saw that the stock sub in the XT's is a 6x9"??? Please correct me if I'm wrong.. I saw this and wanted to share.. A good potential upgrade if you wanted to stick with the 6x9 size... I'm also no expert on reading subwoofer specs, but it looks like it might be a decent upgrade from stock with a smaller single channel amp maybe. Possibly a good mid-bass to fit that slot, combined with a 10 or 12" in a sealed box for a full-blown system.

Specifications: Power Handling: 90 watts RMS/170 watts max *VCdia: 1-1/2" *Impedance: 8 ohms *Re: 6.5 ohms *Frequency range: 35-350 Hz *Fs: 35 Hz *SPL: 87 dB 2.83V/1m *Vas: 1.34 cu.ft. *Qms: 6.05 *Qes: .37 *Qts: .35 *Xmax 7mm *Dimensions: A: 6-1/2" x 9-1/4", C: 4-3/16"

Anyway, just wanted to share...

http://www.partsexpress.com/pe/showd...number=264-837

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Old 04-03-2007, 08:19 AM   #2 (permalink)
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yes, 6x9:

http://www.scoobymods.com/forums/showthread.php?t=4357
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Old 04-03-2007, 08:25 AM   #3 (permalink)
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Ah yes.. That's where I saw the modded coax speaker.

So the only thing about the above tang band woofer is the impedence.. would have to throw an amp at it that can perform well at that higher impedence level... I did also see this one that specs out at 4ohms that might be a better option:

Specifications: Power Handling: 80 watts RMS/160 watts max *VCdia: 3" *Impedance: 4 ohms *Re: 3.2 ohms *Frequency range: 40-350 Hz *Fs: 40 Hz *SPL: 88 dB 2.83V/1m *Vas: 1.65 cu. ft. *Qms: 2.29 *Qes: .28 *Qts: .25 *Xmax 5.5 mm *Dimensions: A: 6-1/2" x 9-1/4", C: 2-3/16".

http://www.partsexpress.com/pe/showd...number=264-864

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Old 04-03-2007, 09:01 AM   #4 (permalink)
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You can always find a impedence matching device if you want but having the new speaker being 4ohm vs. 1.9ohm would just have a less power drain on the amp so you should be okay, no?
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Old 04-03-2007, 09:55 AM   #5 (permalink)
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Since the OEM "sub amp" puts out about 18w RMS @2 ohm, a 4 ohm speaker will recieve about 1/2 that. The performance might not be very good, which will lead to bumping the bass up to compensate which leads to distortion and destruction of the speaker.

I think a hi-low converter and a small 50w amp would work wonders with a replacement 6x9.
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Old 04-03-2007, 10:07 AM   #6 (permalink)
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Yeah.. on the stock head unit, these subs wouldn't be ideal at all.. I was thinking something like one of these 6x9s might work with a sub amp in a pinch for a stock looking setup utilizing the existing sub mount with an aftermarket head unit with preouts.

I'm eventually ebaying the head unit, going completely aftermarket with a head unit, amps, and component speakers.
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Old 04-03-2007, 10:13 AM   #7 (permalink)
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If your going to mess with the OEM sub location, you can always go this route...

Install: 8" sub in stock location
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Old 04-03-2007, 10:16 AM   #8 (permalink)
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Far better solution.. Thanks sea-scooby. That is a great thread by the way.. finally read all the way through it.. They even mention running a shallow-mount 10" in that location.. very cool.
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Last edited by babs; 04-03-2007 at 10:29 AM.
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Old 04-03-2007, 11:06 AM   #9 (permalink)
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if you have the stock sub. You can actually re-use the 6x8 metal bracket with an 8". You just have to either trim it or bend it to fit the 8". Oh yeah you may also have to stack a 1/4" wood spacer between to even it out.
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Old 04-03-2007, 11:31 AM   #10 (permalink)
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Quote:
Originally Posted by babs View Post
Ah yes.. That's where I saw the modded coax speaker.

So the only thing about the above tang band woofer is the impedence.. would have to throw an amp at it that can perform well at that higher impedence level... I did also see this one that specs out at 4ohms that might be a better option:

Specifications: Power Handling: 80 watts RMS/160 watts max *VCdia: 3" *Impedance: 4 ohms *Re: 3.2 ohms *Frequency range: 40-350 Hz *Fs: 40 Hz *SPL: 88 dB 2.83V/1m *Vas: 1.65 cu. ft. *Qms: 2.29 *Qes: .28 *Qts: .25 *Xmax 5.5 mm *Dimensions: A: 6-1/2" x 9-1/4", C: 2-3/16".

http://www.partsexpress.com/pe/showd...number=264-864




I tried that sub with an amp and it sounded like crap (could have been a bad speaker). I eventually went with a sub in the spare tire.
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Old 04-03-2007, 11:34 AM   #11 (permalink)
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Quote:
Originally Posted by sea-scooby View Post
Since the OEM "sub amp" puts out about 18w RMS @2 ohm, a 4 ohm speaker will recieve about 1/2 that. The performance might not be very good, which will lead to bumping the bass up to compensate which leads to distortion and destruction of the speaker.

I think a hi-low converter and a small 50w amp would work wonders with a replacement 6x9.
Yeah, I forgot about the low power but wouldn't it be more efficient than the stock sub so w/ 1/2 the wattage it would still sound better, no? Best to do a separate amp, though.
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Old 04-03-2007, 12:04 PM   #12 (permalink)
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Quote:
Originally Posted by babs View Post
Far better solution.. Thanks sea-scooby. That is a great thread by the way.. finally read all the way through it.. They even mention running a shallow-mount 10" in that location.. very cool.
I've been hoping someone local wants to do a shallow mount 10" in that location. I'd love to give it a shot.
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Old 04-03-2007, 12:44 PM   #13 (permalink)
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How much space is there in that location for mounting depth? Sorry if it was posted somewhere.. I don't recall.

Edit: Nevermind.. I see in the other thread 3.5" to 5".

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Old 04-03-2007, 01:32 PM   #14 (permalink)
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The area where the sub sits (miiddle of opening) is 5" deep. Keep the sub 5" or less and your good to go.
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Old 04-03-2007, 01:38 PM   #15 (permalink)
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I'm seeing all kinds of shallow mount possibilities..
I wonder how the MB Quarts might fare... Might even be able to shoe-horn a 12" in there.. Though a 10" would be a safer bet.

http://www.cardomain.com/item/MBQRSH252

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