Overview

Designed for versatility

If you're into bass, you've probably had to sell off subs at some point because they didn't fit in your plans to expand your system. JBL designed their Club Series WS1200 12" subwoofer for versatility. Its low-profile design allows it to fit into shallow enclosures, and its selectable impedance gives you flexibility in configuring your system. That means it'll fit in just about any vehicle and into any upgrades you make to your bass setup.

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Designed for versatility

Selectable impedance

Unlike most other dual voice coil subs, this sub's Selectable Smart Impedance (SSI™) switch allows you to change impedance from 2 ohms to 4 ohms, the most commonly used impedances. This feature makes it easy to reconfigure your system when you add another Club Series subwoofer or upgrade your amplifier. The sub's polypropylene cone punches out bass as low as 27 Hz and handles up to 250 watts RMS. It works equally well in sealed or ported enclosures, another example of its versatility.

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Product highlights:

12" component subwoofer
polypropylene cone
impedance selector switch (2 or 4 ohms)
power handling: 250 watts RMS (1000 watts peak)
frequency response: 27-175 Hz
sensitivity at 2.83V: 92 dB
top-mount depth: 3-5/16"
grille not included
warranty: 1 year
Our 60-day money-back guarantee
MFR # JBLCLUBWS1200BLK

What's in the box:

JBL Club WS1200 owner's manual

One 12" Subwoofer (with impedance switch)
Owner's manual (English/ French/ Spanish/ Portuguese/ German/ Italian/ Dutch/ Finnish/ Russian/ Swedish/ Danish/ Japanese/ Polish/ Turkish/ Chinese/ Korean/ Indonesian)
Technical data sheet

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Details

Researched by Crutchfield's Pat M.

Features & specs


Size	12 -inch
Impedance (Ohms)	2, 4
Cone Material	Polypropylene
Surround Material	Rubber
Ideal Sealed Box Volume (cubic feet)	0.75
Ideal Ported Box Volume (cubic feet)	1.75
Port diameter (inches)	4
Port length (inches)	10
Free-Air	Yes
Dual Voice Coil	No
Sensitivity	92 dB at 2.83 volts
Frequency Response	27 - 175 Hz
Max RMS Power Handling	250
Peak Power Handling (Watts)	1000
Top Mount Depth (inches)	3 1/4
Bottom Mount Depth (inches)	3 15/16
Cutout Diameter or Length (inches)	11 1/16
Vas (liters)	97.43
Fs (Hz)	22.8
Qts	0.53
Xmax (millimeters)	7.65
Parts Warranty	1 Year
Labor Warranty	1 Year

Product Research

Features

Selectable Smart Impedance (SSI): A switch on the input terminal allows you to easily change the woofer's impedance between 2Ω and 4Ω settings. (The connected amplifier should be off when changing the impedance.)

Enclosure Recommendations:

Sealed Box Volume: 0.75 ft³
Ported Box Volume: 1.75 ft³ with one 4" diameter x 10" long port (tuned to 33 Hz)
Free-Air: The woofer can also be mounted in free air to a baffle board (infinite baffle, no enclosure). When mounted in free air, the power handling is reduced by half (to 125 watts RMS).
Band Pass: JBL recommends a bandpass enclosure with a sealed chamber volume of 1.0 ft³ and a ported chamber volume of 1.75 ft³ with one 4" diameter x 7.5" long port. Bandpass enclosures often provide the most output available from any amplifier and subwoofer combination, but at the expense of sonic accuracy.

Thiele-Small Parameters: Some of the parameters change based on the impedance setting:

	2Ω	4Ω
Re (Ω)	1.84	4.16
Le (mH)	0.65	0.71
Sd (cm²)	502.73	502.73
Bl (Tm)	9.02	12.87
Vas (liters)	97.43	97.56
Cms (μm/N)	274	275
Mms (g)	177.46	177.02
Fs (Hz)	22.80	22.82
Qms	6.24	3.57
Qes	0.57	0.64
Qts	0.53	0.54
Xmax (mm)	7.65	7.65

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Q&A

4 questions already asked

It says the mounting depth is 3 5/16 if I built a Box 4" tall would it fit in it?

[ Vinny Jan 04, 2022 ]

1 answer

Physically, yes. I'd probably put some poly-fill in the box between the basket and the box, just to insure that no contact is made should your mounting surface deflect more than the 9/16" of clearance you're giving it.

[ JASON Jan 04, 2022 ]

Can you recommend an amp to power 2 of these subs?

[ Robert Feb 25, 2021 ]

1 answer

I'm using a JL XD600/1 with the speakers set at 2 Ohms. It doesn't overpower them and I still have room to turn it up when I really want to shake stuff.

[ MATT Feb 25, 2021 ]

i have a sealed box that is .9cu ft. the recommended is .75cu ft. is this going to be a problem?

[ James May 20, 2018 ]

1 answer

Not at all. 0.75 cubic feet is ideal but it will work in your slightly larger airspace without issue.

[ Ryan May 31, 2018 ] Staff

I'm building a box and putting two of these in them I'm going with a square port right now I have it 2 inchs wide by 12 inches long is that too small?

[ William Apr 25, 2018 ]

2 answers

JBL recommends using a round port; 4" in diameter and 10" in length.

[ Ryan May 04, 2018 ] Staff

I doubt it. I have 2 in an enclosed box with a 500 watt amp. It makes me smile every time. Have them face down if ya can.