by Crutchfield's Ken Nail

Highly efficient bass performance

Boston's mission: build a sub that will deliver loads of bass when connected to a moderately-powered amplifier. Efficient G2 subwoofers accomplish the mission, borrowing many design features from the top-of-the-line G5 Series subs, with the quality construction you expect from a Boston Acoustics speaker.

Advanced materials and construction

SureSet terminals The G210-4 10" woofer features a thick foam surround that lets its cone move freely, for efficient output and warm-sounding bass. The SureSet™ terminals come equipped with two fuses to help protect the voice coil during momentary overdrive, and allow you to change the woofer out quickly in case a fuse is blown. RadialVent cooling improves power handling by using the cone's motion to pump hot air away from the sub's internal structure.

Works in sealed and ported enclosures

This subwoofer is optimized for use in small, sealed boxes — ideal if you want tight, accurate bass. Like a little more boom? No problem, it's suitable for larger ported boxes as well. Whatever your goal, Boston G2 subs are ready to take on the challenge.

Priced per speaker

Product highlights:

10" 4-ohm subwoofer
copolymer woofer cone with foam surround
RadialVent cooling for increased power handling
power range: 75-300 RMS watts
frequency response: 24-350 Hz
sensitivity: 87.4 dB
mounting depth: 6-3/8"
sealed box volume: 0.50 cu. ft.
ported box volume: 1.30 cu. ft.
warranty: 2 years
MFR # G210-4

What's in the box:

Boston Acoustics G210-4 owner's manual

10" Woofer
8 M4 T-Nuts
8 M4 lock washers
8 M4 screws (length 1-1/2")
8 M4 self-tapping screws (length 1-1/2")
Specifications sheet
Warranty sheet
Product Registration card

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Researched by Crutchfield's Pat M.

Features & specs

Features and Specs
Size	10 -inch
Impedance (Ohms)	---
Cone Material	Copolymer
Surround Material	Foam
Port diameter (inches)	3
Port length (inches)	10
Free-Air	No
Dual Voice Coil	No
Sensitivity	87.4 dB at 2.83 volts 83.5 dB at 1 watt
Frequency Response	24 - 350 Hz
Max RMS Power Handling	300
Peak Power Handling (Watts)	---
Top Mount Depth (inches)	6 3/8
Bottom Mount Depth (inches)	6 3/4
Cutout Diameter or Length (inches)	9 1/16
Frame Width	10.827
Frame Length	10.827
Vas (liters)	22.3
Fs (Hz)	37
Qts	0.7
Xmax (millimeters)	12.5
Parts Warranty	2 Years
Labor Warranty	2 Years
Box Requirements
Ideal Sealed Box Volume (cubic feet)	0.5
Minimum Sealed Box Volume (cubic feet)	0.5
Maximum Sealed Box Volume (cubic feet)	0.5
Ideal Ported Box Volume (cubic feet)	1.3
Minimum Ported Box Volume (cubic feet)	1.3
Maximum Ported Box Volume (cubic feet)	1.3

Product Research

Features
Enclosure Recommendations

Features

Chassis: The Boston Acoustics G2 series subwoofers are built upon a rigid stamped steel chassis. It features the patented RadialVent cooling technology which directs airflow around the 2-1/2-inch voice coil for increased power handling.

Materials: The G2104 woofer has a co-polymer woofer cone with a raised polypropylene dustcap and a large foam surround. The wrap-around gasket gives you a good seal whether you top-mount or bottom-mount the woofer.

SureSet: The speaker terminals are equipped with two 5-amp ATC fuses providing voice coil protection under transient conditions such as accidental momentary overdrive. Use of the standard automotive style fuses allows you to quickly service the woofer in case a fuse is blown during usage. Note: The fuses do not protect against voice-coil failure resulting from long term high power abuse.

Terminals: The woofer has rugged spring post terminals that accept up to 8-gauge bare wire or pin connectors.

Long Excursion: The woofer has a 2-inch peak-to-peak excursion for accurate deep bass output from a small sealed enclosure.

Enclosure Recommendations

Sealed Enclosure: The G2104 woofer is optimized for use in a small sealed enclosure with a 0.5 cu. ft. internal volume.

Ported Enclosure: The woofer can also be used in a 1.3 cu. ft. ported enclosure with a 3" diameter, 10" long port, and tuned to 37Hz.

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