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12" 4-ohm subwoofer
Our take on the Focal 30A4 by Crutchfield's Alexander Hrabe
Perfect sound. Discreet style. Premium construction. These are the standards that define Focal – and that make listening to Focal speakers an absolute pleasure. The Access line offers a marriage of performance and affordability, allowing you to experience the best in sound with a guilt-free conscience.
Feel the bass
Bass gives your music fullness and texture. If you shortchange the bass, you're not hearing your music the way it's meant to be heard. This Focal Access Series 30A4 subwoofer uses an all-weather DFS (dual fiberglass structure) cone to deliver that depth of character you may be missing from your system. The cone's butyl rubber surround helps to ensure excellent strength, durability, and musical accuracy.
A unique ventilation system keeps the voice coil cool, allowing this sub to handle up to 250 watts RMS. Install this sub in a sealed box for tight, punchy bass, or in a ported enclosure for a little more boom.
To drive this single subwoofer, we recommend a mono amplifier rated between 200 and 375 watts RMS at 4 ohms. For more information, please refer to our article on How to Match Subwoofers and Amplifiers.
These subs are ridiculously good. Connected a pair of these in a ported 40 hertz box with two 10s in a sealed box to a two channel rockfordfosgate marine amp dialed in at 80 hertz. The sound quality is crazy good with two distinct bass frequencies.
Robert, Fairhope, AL
What's in the Box:
- One 12" Single voice coil woofer
- Removable rubber mounting ring (installed)
- Eight 7/8" Self-tapping screws
- User manual (English/ French/ Russian)
- Focal window sticker
- 12" 4-ohm subwoofer
- dual fiberglass structure cone with butyl rubber surround
- high power 4-3/4" magnet
- spider decompression ventilated coil
- power range: 50-250 watts RMS (500 watts peak)
- frequency response: 32-500 Hz
- top-mount depth: 5-3/8"
- sealed box volume: 0.70-1.05 cubic feet
- ported box volume: 0.88-1.23 cubic feet
- sensitivity: 87 dB at 2.83 volts
- warranty: 1 year
- Our 60-day money-back guarantee
Focal 30A4 Reviews
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Features and Specs
|Surround Material||Butyl Rubber|
|Ideal Sealed Box Volume (cubic feet)||N/A|
|Ideal Ported Box Volume (cubic feet)||N/A|
|Port diameter (inches)||3.5|
|Port length (inches)||13.75|
|Dual Voice Coil||No|
87 dB at 2.83 volts
84.18 dB at 1 watt
|Frequency Response||32 - 500 Hz|
|RMS Power Range (Watts)||50-250|
|Peak Power Handling (Watts)||500|
|Top Mount Depth (inches)||5 3/4|
|Bottom Mount Depth (inches)||N/A|
|Cutout Diameter or Length (inches)||10 11/16|
|Parts Warranty||1 Year|
|Labor Warranty||1 Year|
Cone Material: The Dual Fiberglass Structure Membrane (DFS) is a light, rigid, woven glass fiber woofer cone. The butyl rubber surround is resistant to ultraviolet rays, temperature extremes, and humidity to add to the speaker's reliability and longevity.
Spring-Posts: The 30A4 uses spring-post speaker terminals for easy connection of single banana plugs, pin connectors, or bare wire up to 10 gauge.
Rubber Gasket: The gasket/mounting-ring ensures better chassis damping and prevents air leakage. The rubber gasket is removable.
Sealed Box Volume: FOCAL recommends a sealed enclosure with a volume between 20 liters (0.71 cubic feet) and 30 liters (1.06 cubic feet).
Ported Box Volume: FOCAL recommends a ported enclosure with a volume between 25 liters (0.88 cubic feet) and 35 liters (1.24 cubic feet) using a single 3-1/2" diameter 13-3/4" long port tube.
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