Ten inch subwoofers are a good choice if you have 5" or 4" front speakers, they blend in with the smaller speakers. They give tight accurate bass without boom.

Access1 subwoofers are very efficient can be driven by relatively low-powered amplifiers. Few subwoofers in this price range can match the 25A1 and 30A1 for tight dynamic accurate bass without boom.

Polyglass subwoofers use small sealed enclosures. Subs in sealed enclosures require more amplifier power, and are more tonally accurate.

K2P subwoofers have Focals signature red multiferrite magnets and yellow 'W' cone material. This 'W' cone material is a sandwich of multiple layers of Kevlar and aerospace foam, bonded together under pressure and heat. They are hand-made because machinery is not able to do these processes.  The benefits are a very lightweight cone with extreme rigidity, therefore no flutter and overhang. K2P subs are designed for small sealed enclosures. Tonally, they have more 'authority' and are tight and fast. If you like your bass loud and clear, this range should be your preferred type.

Utopia subwoofers are our most accurate, in terms of musical reproduction, being part of the audiophile series. They are a showpiece of Focal engineering skills

When it comes to subwoofers, power equals pleasure. A powerful amplifier will have better control over the subwoofer. More subwoofers are damaged by underpowering than are damaged by overpowering. When an amplifier is working too hard, it clips the signal and creates extra heat for the voice-coil.

Wherever possible, face your subwoofers forward not backward, and position them as far to the rear of the vehicle as possible. This will reduce 'boominess' and allow the lowest possible bass frequencies. Remember that bass notes are long waves, and the further you can position the subwoofer from the listener, the lower the frequency the system will generate. The bass will gain impact as the sound waves are channeled forward along the length of the vehicle.

25 A1

Technical Details

$229 (Aust) 

10" Access1 subwoofer

250mm (10") all weather woven fibreglass cone. 
145mm (5.7") magnet.
Max. power handling: 400W.
Nominal power handling: 200W RMS
Frequency response: 32Hz-500Hz.
 

for ported enclosure

Technical Details

$259 (Aust) 

300mm (12") all weather woven fibreglass cone. 
145mm (5.7") magnet.
Max. power handling: 500W
Nominal power handling: 250W RMS
Frequency response: 27Hz-500Hz.

for ported enclosures

21 V2

Technical Details

$349 (Aust)

8-1/4" Subwoofer

210mm subwoofer
50mm single voice-coil
120mm magnet.
Power handling: 400W max, 200W RMS
Frequency response: 
40Hz-500Hz.
Impedance: 4ohm single voicecoil
Suitable for closed box applications 12-20 litres.

A compact subwoofer with extremely low bass response. These require only a small enclosure so fit into many cars where no other subwoofer will fit. Fast, tight bass.

27 V2

Technical Details

$449 (Aust)

27cm (11") subwoofer for small sealed enclosure

270mm subwoofer
65mm dual voice-coil
156mm double stacked magnets.
Power handling: 600W max, 300W RMS
Frequency response: 
35Hz-500Hz.
Impedance: 2 x 4Ù
Suitable for closed box applications 15-30 litres.

this is a classic Focal subwoofer, smooth, unobtrusive, blending with the front speakers to provide seamless deep accurate bass. Likes power, so don't underpower it. Use 300 Watts RMS at least. Use a small sealed box facing forward from as far back in the vehicle as possible. This is the thinking man's subwoofer. Not for bassheads, this is for people who appreciate music reproduced accurately.

33 V2

Technical Details

$549 (Aust)

33cm (13") subwoofer for small sealed enclosure

330mm subwoofer
65mm dual voice-coil
156mm double stacked magnets.
Power handling: 800W max, 400W RMS
Frequency response: 
30Hz-500Hz.
Impedance: 2 x 4ohm
Suitable for closed box applications 25-50 litres.

(see note for 27V2 above) the 33V2 13-inch subwoofer plays lower and louder than the 11-inch 27V2. This is a good match for larger front speakers, 6.5" and above. Set your crossover at 80 to 90 Hz for a seamless transition from sub to mid

40 V2

Technical Details

$649 (Aust)

15" Subwoofer

330mm subwoofer
65mm dual voice-coil
156mm double stacked magnets.
Power handling: 800W, 400W RMS.
Frequency response: 
30Hz-500Hz.
Impedance: 2 x 4Ù
Suitable for closed box applications 25-50 liters.

deep articulate bass. Use a big amplifier, this driver needs power to work well. Brace yourself for some fun. There is music you have never heard before on your old CD's

13 KS

Technical Details

$299 (Aust)

5" Subwoofer

130mm (5") subwoofer
40mm (1") v.coil
100mm (4") magnet
Max. power handling: 180W.
Nominal, power handling: 80W.
Sensitivity (2.8 V/1m): 85dB.
Frequency response: 50Hz-2kHz.

for sealed enclosure 5 to 8 litres (plus driver displacement)

This tiny subwoofer is designed for installation in the cabin of the vehicle, under a seat, in a glovebox or in rear doors. It's designed to provide impact and dynamics to the music and to bridge the gap between subwoofer and front splits. Tune your amplifiers high-pass filter at 45Hz and a low-pass at 200 Hz, and add some real punch to your music.

27 KX

Technical Details

$799 (Aust)

11" Subwoofer

279mm (11") subwoofer
65mm (2.5") v.coil
Max. power handling: 600W.
Nominal, power handling: 300W.
Sensitivity (2.83 V/1m): 88dB.
Frequency response: 
35Hz-1500Hz.
Impedance: 4.5Ω

An 11" subwoofer is often a better choice where sound quality takes precedence over SPL (volume). These subwoofers play low, loud and clean, yet they are fast enough to follow the music accurately, without the dreadful subwoofer delay that is evident in so many systems. They play tight, accurate and deep. This is no accident; have a look at the very expensive magnets used in the motor assembly and the high-tech multi-layer cone material. You get what you pay for. Yes, there are cheaper subs which play louder. However, Focal set out to design speakers for musical enjoyment not all-out noise level.

27KX is where SPL means Sheer Pleasure of Listening.

33 KX

Technical Details

$999 (Aust)

13" Subwoofer

331mm (13") subwoofer
65mm (2.5") v.coil
Max. power handling: 800W.
Nominal, power handling: 400W.
Sensitivity (2.83 V/1m): 90dB.
Frequency response: 
30Hz-1000Hz.
Impedance: 2X2 Ω

NOTE: when building enclosures for any subwoofer, add the driver displacement to the box size. You will find the displacement in the technical details pdf for each driver; click on the blue link to the left)

40 KX

Technical Details

$1,199 (Aust)

16" Subwoofer

406mm (16") subwoofer
65mm (2.5") dual v.coil
Max. power handling: 1000W.
Nominal, power handling: 500W.
Sensitivity (2.83 V/1m): 92.5dB.
Frequency response: 
25Hz-1000Hz.
Impedance: 2X2 Ω

46 KX 4

Technical Details

$1,599 (Aust)

18" Subwoofer

46cm (18") subwoofer
Four 77mm (3") voice coils each 1 ohm
Max. power handling: 2000W.
Nominal, power handling: 1000W.
Sensitivity (2.83 V/1m): 96.5dB.
Frequency response: 20Hz-500Hz.
Impedance: 4X1 Ω

46cm (18") subwoofer, quadruple coil, K2 composite sandwich cone, multiferrite magnet.

State-of-the-art audio contest contender,46 KX 4 combines successfully sound reproduction quality and high SPL.

21WX     $1099

21WX tech specs

21cm (8.4") subwoofer

for sealed 15 to 30 litre enclosure, 250 w RMS,

single 4 ohm

complete with grille

29 Hz to 500 Hz

33KX2 tech specs

33cm (13") subwoofer

27 Hz - 500 Hz

400 watts RMS  

13WS   $499 EACH

13WS tech specs 

5" mini-subwoofer, intended for use inside the cabin area of vehicle to improve midbass impact

Bomba 20A1   $549

8" active subwoofer in ported enclosure

complete with amplifier built into rear of sub enclosure

250 watts max, 125 watts RMS

frequency response 42Hz to 500 Hz

RCA and speaker level inputs

32cm high, 39cm long, 32cm base width

Solution 25A1   $749

25cm (10") subwoofer in ported box, complete with amplifiers built into rear of the enclosure to run cabin speakers and the subwoofer.

Included dashboard mounting controller module with :

• 3.5mm aux input socket for iPod or Nokia etc
• a selector for switching from Radio/CD to the aux input
• input level adjustment for the aux input
• subwoofer output level control

RCA or speaker-level inputs

quality construction and switchgear throughout

cabin speaker outputs 2 x 50 watts RMS

Subwoofer driven at 150 watts RMS

freq response 42Hz to 20kHz

this is a unique product, no other manufacturer offers an all-in-one solution like this. Hook up your head unit to the input, run power supply cable (included), connect your front speakers to the speaker output terminals, and you have a complete system in one box, with Focal sound quality.

BUS 20A1  $449

under-seat subwoofer with built-in amplifier

20cm (8") driver and 60 watts RMS amplifier

frequency response 50Hz to 400Hz

75mm x 242 x 248

remote sub level controller included

25cm (10") driver and 60 watts RMS amplifier

frequency response 50Hz to 400Hz

80mm x 277 x 371

remote sub level controller included