# Sony 12" 1200w sub in a bandpass box

**URL:** <https://forums.speedlife.net/t/sony-12-1200w-sub-in-a-bandpass-box/97713>\
**Category:** Classifieds\
**Created:** [July 6, 2006, 7:15pm UTC](https://forums.speedlife.net/t/sony-12-1200w-sub-in-a-bandpass-box/97713 "2006-07-06T19:15:48Z")\
**Posts on this page:** 10\
**Page:** 1

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**Author:** ![martingouda](https://avatars.discourse-cdn.com/v4/letter/m/f4b2a3/32.png) [@martingouda](https://forums.speedlife.net/u/martingouda)\
**Post date:** [July 6, 2006, 7:15pm UTC](https://forums.speedlife.net/t/sony-12-1200w-sub-in-a-bandpass-box/97713/1 "2006-07-06T19:15:48Z")

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Sony 12" subwoofer  
1200w  
XPLOD XS-L121P5

Features:  
12" Polypropylene Cone  
1200W max input power (350W RMS)  
Unique cone design offers superior rigidity  
Gold-plated Binding Posts  
Small sealed/ported enclosure optimized  
4 ohm Voice Coil

Detailed Features:  
Gold-plated binding posts – A solid, secure, simple and capable method of transferring serious current to speakers with protection against corrosion for lower resistance.  
Polypropylene cone – A plastic based material used primarily for speaker cones due to its resistance against harsh environmental conditions, rigidity, and damping.  
4-layer edge-wound voice coil – Start with an aluminum former and wind four layers of copper wire that’s flat, rather than round. This allows the wire to pack together in a smaller space than would otherwise be needed. More copper means better current handling, so the woofer can take more power! The aluminum former retains its shape and resists very high temperatures without burning or melting.  
Dual “Triple-layer” damper – Three layers of high strength damper material makes up each of the two spiders, ensuring virtually perfect linear travel of the voice coil. The lead wires are embedded in the top spider, preventing entanglement and extending the voice coil’s throw.  
Pentagonal Cone – Improves cone rigidity for lower distortion, and reduction of standing waves on the cone itself, for cleaner sound and better transient response.

Specifications:  
Sensitivity – 89 dB/W/m  
Frequency Response – 18 - 2,000 Hz  
Mounting Dimensions –  
Diameter – 277 mm (11")  
Depth – 161 mm (6-3/8")  
Weight – Approx. 5.7 kg (12 lb 10 oz) per speaker

mounted in a CRUNCH USA 12" bandpass box with the plexi replaced with MDF to stiffen the bass…

SYSTEM POUNDS HARD!!! alot of people have heard it in my delsol and can say it does…

$100 or best offer.

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**Author:** ![imported\_240sx\_drift](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/imported_240sx_drift/32/5585_2.png) [@imported\_240sx\_drift](https://forums.speedlife.net/u/imported_240sx_drift)\
**Post date:** [July 6, 2006, 7:43pm UTC](https://forums.speedlife.net/t/sony-12-1200w-sub-in-a-bandpass-box/97713/2 "2006-07-06T19:43:55Z")

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you got a pic of the sub man? and also do you have an amp up for sale to or no?

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**Author:** ![martingouda](https://avatars.discourse-cdn.com/v4/letter/m/f4b2a3/32.png) [@martingouda](https://forums.speedlife.net/u/martingouda)\
**Post date:** [July 7, 2006, 2:43pm UTC](https://forums.speedlife.net/t/sony-12-1200w-sub-in-a-bandpass-box/97713/3 "2006-07-07T14:43:24Z")

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no amp for sale, no pic of the actuall sub but it’s in good shape and looks like

![http://images.amazon.com/images/P/B00025ELDU.01-AIWHEFKG4HT6N.SCLZZZZZZZ.jpg](http://images.amazon.com/images/P/B00025ELDU.01-AIWHEFKG4HT6N._SCLZZZZZZZ_.jpg)  
 ![http://www.sobreruedas.es/autocentro/images/sony/xs-l121p5.jpg](http://www.sobreruedas.es/autocentro/images/sony/xs-l121p5.jpg)

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**Author:** ![system](https://canada1.discourse-cdn.com/flex034/uploads/speedlife/original/2X/b/b7170c8eddc0b95ece6b88172b2f416a08489a45.png) [@system](https://forums.speedlife.net/u/system)\
**Post date:** [July 7, 2006, 9:28pm UTC](https://forums.speedlife.net/t/sony-12-1200w-sub-in-a-bandpass-box/97713/4 "2006-07-07T21:28:34Z")

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is 1200watts the I.L.S. rating ?

farmer

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**Author:** ![martingouda](https://avatars.discourse-cdn.com/v4/letter/m/f4b2a3/32.png) [@martingouda](https://forums.speedlife.net/u/martingouda)\
**Post date:** [July 8, 2006, 10:54am UTC](https://forums.speedlife.net/t/sony-12-1200w-sub-in-a-bandpass-box/97713/5 "2006-07-08T10:54:33Z")

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soory i don’t know what an ILS rating is but the subs specs can be looked up online, heres what i found

In-Car Measured SPL (peak @ 50 Hz): 1 watt: 105.1 dB; 350 watts: 127.6 dB; 1200 watts: 130.3 dB  
Published Specs: XS-L121P5  
Max Power (W): 1200  
Max Power (RMS, W): 350  
Sensitivity (dB/W/m): 89  
Freq. Resp.: (Hz) 18 - 2k  
Impedance (Ohms): 4  
D (mm): 250  
D (inch): 9.8  
Rdc (Ohms): 3.2  
Fs (Hz): 26.4  
Qts: 0.42  
Qes: 0.44  
Qms: 5.86  
Vas (Lit.) : 55.5  
Vas (ft\_): 1.96  
Mms (g) : 219.0  
Lvc (mH) : 1.2  
Xmax (mm) : 7.5  
Xmax (inch) : 0.3  
BL ™ : 16.1  
General Info: 12-inch Polypropylene Cone  
Weight: 12 pounds 10oz  
Mounting Diameter: 11.0 inches  
Mounting Depth: 6.375 inches  
Unique pentagon cone design.  
Gold-plated Binding Posts.  
Small sealed/ported enclosure optimized.

I have had alot of intrest dispite mr. gassy up there bitching about this sale and tho it’s still avalible this is FIRST COME FIRST SERVE!!!

pm me for a fast reply

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**Author:** ![Gonad](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/gonad/32/5481_2.png) [@Gonad](https://forums.speedlife.net/u/Gonad)\
**Post date:** [July 8, 2006, 11:10am UTC](https://forums.speedlife.net/t/sony-12-1200w-sub-in-a-bandpass-box/97713/6 "2006-07-08T11:10:09Z")

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Thread cleaned up. One post removed and one edited.

Note:  
If you have nothing valuable to add, nor do you have any concrete proof  
as to why someone shouldn’t buy this item, please avoid posting.

Oh and a little grammar and spelling in your posts will go a long way.

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<div class="post-metadata">

**Author:** ![martingouda](https://avatars.discourse-cdn.com/v4/letter/m/f4b2a3/32.png) [@martingouda](https://forums.speedlife.net/u/martingouda)\
**Post date:** [July 8, 2006, 11:15am UTC](https://forums.speedlife.net/t/sony-12-1200w-sub-in-a-bandpass-box/97713/7 "2006-07-08T11:15:17Z")

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my speeling and grammar are terrible, i am sorry, french was my first language for my early years… i am working on it

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<div class="post-metadata">

**Author:** ![martingouda](https://avatars.discourse-cdn.com/v4/letter/m/f4b2a3/32.png) [@martingouda](https://forums.speedlife.net/u/martingouda)\
**Post date:** [July 9, 2006, 8:48am UTC](https://forums.speedlife.net/t/sony-12-1200w-sub-in-a-bandpass-box/97713/8 "2006-07-09T08:48:27Z")

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fogot to mention that i will include the original box for the sub and the spec sheets directly from sony.

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<div class="post-metadata">

**Author:** ![martingouda](https://avatars.discourse-cdn.com/v4/letter/m/f4b2a3/32.png) [@martingouda](https://forums.speedlife.net/u/martingouda)\
**Post date:** [July 13, 2006, 7:06am UTC](https://forums.speedlife.net/t/sony-12-1200w-sub-in-a-bandpass-box/97713/9 "2006-07-13T07:06:40Z")

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$70 if picked up today…

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<div class="post-metadata">

**Author:** ![martingouda](https://avatars.discourse-cdn.com/v4/letter/m/f4b2a3/32.png) [@martingouda](https://forums.speedlife.net/u/martingouda)\
**Post date:** [July 19, 2006, 1:02pm UTC](https://forums.speedlife.net/t/sony-12-1200w-sub-in-a-bandpass-box/97713/10 "2006-07-19T13:02:08Z")

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still avalible…
