JBL PB1220

Category/Image	Product Name/Description	Price
Main Product	JBL PB1220	$399.95

Subwoofer Size

Refers to the diameter of the subwoofer, measured in inches.

6" Subwoofers
6.5" Subwoofers
8" Subwoofers
10" Subwoofers
12" Subwoofers
13" Subwoofers
15" Subwoofers
18" Subwoofers

Subwoofer Design

This is the design of the subwoofer or the opening of the subwoofer enclosure. Each design has it's own benefits, whether it is a square, circle, or oval.

Circular

This is the typical and common subwoofer design. They have a round cone and are circular in design.

Rectangular

These woofers are able to achieve a greater cone area in a smaller space. Because of the greater surface area, some rectangular subwoofers will be louder than a circular subwoofers of the same size.

Main Cone Color

This is the color of the speaker's or subwoofer's cone.

Voice Coil(s)

Dual voice coil subs have more wiring flexibility than single voice coils subs; however, single voice coil subwoofers provide easier hookup options for wiring multiple subwoofers in parallel or series. You may also run a dual voice coil (DVC) sub in parallel, series, or combination. A quad voice coil has four voice coils and is equal to two dual voice coil subwoofers as far as wiring goes.

Impedance (per voice coil)

The load value (in ohms) that the speakers present to the amplifier per voice coil - the amount of resistance to the current flow. This is a key specification as subs wired in parallel or low impedances can create problems with your amplifier and potentially void all warranties. We encourage you to ask our support department prior to purchase if you do not understand which impedance level will suit you/your amp best.

Peak Power Handling

Peak power handling refers to the amount of power a speaker can handle during a brief musical burst. The RMS power range figure is a much more reliable rating for determining the speaker's power requirements. The Peak power handling specification is typically rated per speaker unless otherwise noted.

RMS Power Handling

The RMS power is the amount of power the speaker requires to operate safely and properly. RMS Power Handling refers to the amount of power a speaker can handle on a continuous basis. We recommend powering your speaker or subwoofer 75% - 90% of its recommended RMS rating. The RMS power handling specification is typically rated per speaker unless otherwise noted.

Woofer Composition

The woofer cone material is essential for efficient operation. Poly cones produce exceptional sound and are sturdy against various changes in temperature. Paper cones are very efficient, and when treated for moisture resistance, will perform at a high level. Poly refers to polypropylene: thermoplastic plastics or fibers that are polymers of propylene. IMPP refers to injection molded polypropylene, a commonly used process and material in speaker manufacture.

Woofer Surround

The flexible ring around the edge of the woofer cone. Surrounds are usually made of cloth, foam or rubber. Rubber and composites tend to last longer and hold up better in harsh environments.

Minimum Sealed Box Volume

This value indicates the minimum sealed box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.

Maximum Sealed Box Volume

This value indicates the maximum sealed box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.

Minimum Ported Box Volume

This value indicates the minimum ported box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.

Maximum Ported Box Volume

This value indicates the maximum ported box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.

Sensitivity

An efficiency or sensitivity rating tells you how effectively a speaker converts power into sound. The higher the number, the more efficient the speaker and the louder it will play with the same input power. An efficient speaker helps you maximize your available power. Most sensitivity ratings measure the speaker's output with 1 watt of input, 1 meter from the speaker. Some speakers' sensitivity is measured with 2.83 volts of input, instead of 1 watt.

Efficiency (1W/1m) is not an accurate indicator of a subwoofer's output capability and should not be used as a comparison to other subwoofers to determine which one is "louder".

Frequency Response

The range of frequencies the speaker will reproduce (lowest frequency to the highest). Bigger is better, meaning the wider the range, the better. The optimal range is 20 - 20,000 Hz (which is the range of human hearing).

Xmax (millimeters)

Typically measured in millimeters, the Xmax value is the measure of a speaker cone's maximum excursion in one direction while maintaining a linear behavior.

Top Mount Depth

The depth when installed on top of the mounting surface. Measured from the bottom of speaker(magnet) to the bottom of mounting holes on rim of speaker.(Most common application)

Shallow Mount Installation

This means that the subwoofer/speaker is designed to be installed in areas that do not have a lot of space. Shallow mount subwoofers are typically found under a seat or behind the seat in some trucks.

Shallow mount speakers will typically have a mounting depth of less than 2".

Cutout Dimensions

Refers to the hole dimensions (in inches or millimeters) needed to mount the speaker.

Recommended Enclosure Type

This is the recommended type of enclosure that the subwoofer should be installed into. Some subwoofers are specially designed for particular enclosures.

Sealed

These enclosures completely enclose the air inside the box. These boxes produce a tight bass.

Ported/Vented

These enclosures have a slot of air to escape from the box. The result is a sound that has more "boom".

Bandpass

These are a combination of both sealed and ported enclosures. They can be very efficient, but require tuning for the best response.

Subwoofer Grille

Most subwoofers are able to accommodate a universal grille; however, some subs include a grille and others have a specific, optional grille available for purchase separately. If "yes", then the subwoofer includes a grille. If "optional (sold separately)" the matching grille will need to be purchased in addition to the sub.

Re-Cone Kit Available

Some higher end subwoofers have replaceable cone assemblies. In case of a blown woofer, a recone kit allows for a simple replacement, as opposed to purchasing an entire new subwoofer.

Product Summary
SKU#:	1585477
Manufacturer:	JBL
Model:	PB1220
Condition:	Brand New
Availability:	In Stock
Warranty:	1-year Warranty
Price:	$399.95

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Subwoofer Specifications
Subwoofer Size	12" Subwoofers
Subwoofer Design	Circular
Main Cone Color	Black, Silver
Voice Coil(s)	Dual
Impedance (per voice coil)	2 ohms
Peak Power Handling	1600 watts
RMS Power Handling	400 watts
Woofer Composition	Paper
Woofer Surround	Rubber
Minimum Sealed Box Volume	NA
Maximum Sealed Box Volume	NA
Minimum Ported Box Volume	NA
Maximum Ported Box Volume	NA
Sensitivity	90 dB
Frequency Response	32-200 Hz
Xmax (millimeters)	NA
Top Mount Depth	NA
Shallow Mount Installation	NA
Cutout Dimensions	NA
Recommended Enclosure Type	Ported
Subwoofer Grille	NA
Re-Cone Kit Available	NA