About the Boston Acoustics G312-4
The G3 Series subwoofers from Boston Acoustics incorporate innovative technologies with advanced materials for low-frequency firepower that'll enhance any type of music. The patented RadialVent® cooling system shunts heat away from the voice coil, and the ultra-rigid chassis provides a rugged platform for high-powered bass.
The 12" G312-4 subwoofer features a rigid copolymer woofer cone and a large compressed foam surround. Extended cone excursion lets these subs pound out ultra-low notes, while the 2-1/2" voice coil handles 375 watts RMS for bass that hits hard. Boston's unique SureSet™ fuse configuration protects the voice coil from overload when the music is cranked.
This multi-purpose sub works well in all sizes and types of enclosures. You can install this sub with Boston's GTR TunableRadiator for a big boost in bass level without a large enclosure. The gasket allows for standard and inverted mounting so you can get creative with your installation.
Product highlights:
- 12" 4-ohm subwoofer
- copolymer woofer cone with foam surround
- RadialVent cooling for increased power handling
- power handling: 100-375 watts RMS
- frequency response: 20-350 Hz
- sensitivity: 85.0 dB
- mounting depth: 6-5/8"
- suitable for free-air use
- sealed box volume: 1.0 cu. ft.
- ported box volume: 2.0 cu. ft.
- warranty: 2 years
- Our 60-day money-back guarantee
- MFR # G312-4
What's in the box:
Boston Acoustics G312-4 owner's manual
- 12" Woofer
- 2.5mm Allen wrench
- Eight 1-1/2" Self-tapping screws
- Specification sheet
- Warranty information
- Product registration card
Featured review
I've got 2 of these hooked to a 2400 watt 2ch amp and they hit rediculous. Whether im listening to some rap or rock it hits either way. best woofer in the price range. I you have the power to run these subs buy them definately.
zach from Riverside, Ca
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More details on the Boston Acoustics G312-4
Features & specs
| Size | 12 -inch | |
| Impedance | Other | |
| Cone Material | Copolymer | |
| Surround Material | Compressed foam | |
| Ideal Sealed Box Volume (cubic feet) | 1 | |
| Ideal Ported Box Volume (cubic feet) | 2 | |
| Port diameter (inches) | 4 | |
| Port length (inches) | 13 | |
| Free-Air | Yes | |
| Dual Voice Coil | No | |
| Sensitivity |
88.8 dB at 2.83 volts 85 dB at 1 watt | |
| Frequency Response | 20 - 350 Hz | |
| Max RMS Power Handling | 375 | |
| Peak Power Handling (Watts) | --- | |
| Top Mount Depth (inches) | 6 5/8 | |
| Bottom Mount Depth (inches) | 7 1/4 | |
| Cutout Diameter or Length (inches) | 11 1/16 | |
| Vas (liters) | 57 | |
| Fs (Hz) | 30 | |
| Qts | 0.73 | |
| Xmax (millimeters) | 14.5 | |
| Parts Warranty | 2 Years | |
| Labor Warranty | 2 Years | |
Product Research
Features
Enclosure Recommendations
Features
Chassis: The Boston Acoustics G3 series high-performance subwoofers are built upon a rigid chassis. It features the patented RadialVent cooling technology which directs airflow around the 2-1/2-inch 4-layer voice coil for increased power handling.
Materials: The G312-4 woofer has a co-polymer woofer cone with a raised dustcap and a large compressed 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 7.5-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 2-3/4 inch peak-to-peak excursion for accurate deep bass output from a small sealed enclosure.
GTR Tunable Radiators: The G312-4 is compatible with the Boston Acoustic GTR Tunable Radiator (item number 065GTR12, sold separately). These passive radiators, when mounted in an enclosure with the G3 woofer, can produce increased bass output without added enclosure volume.
Enclosure Recommendations
Sealed Enclosure: The ideal sealed enclosure for the G312-4 woofer is 1.0 cubic feet.
Ported Enclosure: The woofer can also be used in a 2.0 cubic foot ported enclosure with a 4" diameter x 13" long port (tuned to 34 Hz).
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