Better Subwoofer Stroker Pro Vs Rockford Fosgate T2D4-15 - diyAudio
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Old 22nd November 2011, 05:48 PM   #1
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Join Date: Jul 2010
Default Better Subwoofer Stroker Pro Vs Rockford Fosgate T2D4-15

Hi. just wondering if any one can give some input on SQ+low frequency extension for HT use :

1. Stroker Pro-15.

Fs=26 Hz. Power handling= 2500 watt RMS. Price around 1000 usd. Maget double stacked, 3 spiders. magnet weight =unknown .

2. Rockford Fosgate, T2-D415:
Fs=31 Hz, Power Handling=1000W RMS, Price around =600 UAD, Magnet triple stacked, single spide, magnet weight=260 oz.

Any one would be used in pairs possibly vented/sealed with Linkwitz transform. Rockford Fosgate has greater magnet component, greater BL b ut lesser Xmax , lesser power handling .

Any ideas which one to choose. auditioning in proper box is not possible. regards.
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Old 22nd November 2011, 06:03 PM   #2
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oh. let just addd JL audio 13W7 to it as well. i have JL Gotham 212 type subwoofer in mind. :-)
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Old 22nd November 2011, 06:35 PM   #3
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Join Date: Jan 2011
For your house?
Is size a primary concern? Or is price? Or is extension? Or output?

I've owned multiple 12w7's. They are great. But price wise? I'd look
Elsewhere now knowing what I know.
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Old 26th November 2011, 02:13 PM   #4
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Join Date: Aug 2011
I'd vote for the Stroker, as I've said before it gets very good reviews for SQ and SPL. Over the Rockford it's got: oodles more power handling, 30% more X-max (both important for an LT enclosure), "shorting rings":Purpose of a copper shorting ring? - - Scientific Car Audio - Truth in Sound Quality

I used to run the old stroker 18D2 in a half vol box in my car-best sub I've owned in terms of grins per mile, wasn't really bothered by SQ in those days but it was surprisingly accurate and punchy!
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Old 28th November 2011, 10:44 AM   #5
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Yes, for HT. Size no concern. SQ+SPL in the lowest octaves below 44 Hz. i.e the lowest cross over point from my behringer. Above that till 80 Hz i plan to go dual 15 inch peavey low rider woofers tuned to around 33 Hz.

Hope to have the SLAM/PUNCH and the lowest gu bass i can just feeel only.

thanks Baron Groog for the input .

I have a question What would be the theoretical F3 with Stroker Pro 15 for maximally flat reflex port.

Now can we tune the box below the F3 . i mean if F3=32 Hz, will tuning it at 15 Hz give much output down to 15 Hz?
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Old 28th November 2011, 11:24 AM   #6
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Join Date: Aug 2011
For the best HT output go for a bandpass box,
Single tuned
Chamber 1: 14.2cf
Chamber 2: 3.01cf
Fb: 29.44Hz
F3: 16.06Hz
Vent 18"Hx2.5"Wx43.71"L

Green trace

Double tuned BP:
Chamber 1: 19.83cf
Chamber 2: 5.833cf
Fb: 15.56Hz (large chamber)
Fb: 28.79Hz (small chamber)
F3: 13.74Hz
Vent 1: 18"Hx3"Wx26.21"L (large chamber)
Vent 2: 18"Hx2.5"Wx21.46"L (small chamber)

Red trace

14,82Hz Fb
12.05Hz F3
Vent 18"Hx3"Wx46.89"L

Yellow trace
Attached Images
File Type: jpg pro15.JPG (209.4 KB, 72 views)
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Old 21st December 2011, 08:43 AM   #7
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can we compare it to JL W7 ??? in SPL in HT i think below 30 Hz the ear is mostly insensitive.
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