LF
Sub-woofer
12"
Twiggy12
Code: Twiggy12X4-470A
Slim Sub/12inch/Ferrite/Honeycomb/200W/4ohm
Key Features
- Shallow, yet high cone excursion
- Honeycomb cone
- Ideal for 4x4" wall subwoofer, car underseat subwoofers
Quick Specs
Impedance
4 Ω
Program Power
400 W
Sensitivity
84.20 dB
Fs
30.00 Hz
Magnet
Ferrite
Voice Coil
76 mm
Design Notes
The ultimate in shallow depth woofer design! We created this powerhouse of a speaker with limited spaces in mind, allowing you to fit it into the most compact areas while still delivering massive low frequencies. The extreme shallowness of the Twiggy 12 opens up a world of possibilities, allowing designers to craft enclosures that seamlessly integrate into typical 4x4" wall structures, under vehicle seats, beneath sofas, and more.
But don't be fooled by its shallow design – the cone excursion approaches an impressive 22.4mm peak to peak, ensuring that this woofer will deliver sizable amounts of low frequencies without compromising on performance. The cone is constructed with a honeycomb structure and layers of woven glass fibers, adding not only to its strength but also to the overall rigidity and performance.
Our patented design guarantees that the depth versus cone excursion ratio is the best available in the market, ensuring optimal sound quality in any installation. The unique magnetic structure of the Twiggy 12 delivers a high-strength B field with minimal distortion artifacts, further enhancing the audio experience.
To top it off, this little powerhouse can handle up to 800 watts of peak power amplification, making it the go-to choice for delivering excelent sound experience.
But don't be fooled by its shallow design – the cone excursion approaches an impressive 22.4mm peak to peak, ensuring that this woofer will deliver sizable amounts of low frequencies without compromising on performance. The cone is constructed with a honeycomb structure and layers of woven glass fibers, adding not only to its strength but also to the overall rigidity and performance.
Our patented design guarantees that the depth versus cone excursion ratio is the best available in the market, ensuring optimal sound quality in any installation. The unique magnetic structure of the Twiggy 12 delivers a high-strength B field with minimal distortion artifacts, further enhancing the audio experience.
To top it off, this little powerhouse can handle up to 800 watts of peak power amplification, making it the go-to choice for delivering excelent sound experience.
Specifications
General Specs
Nominal Diameter
12"
Rated Impedance
4 Ohm
Magnet
Ferrite
Basket Material
Steel
Power Handling
AES Power
200 W
Continuous Power
400 W
Peak Power
800 W
Voice Coil
Diameter
76 mm
Winding Wire
CCAW
Former
Glass Fiber
Winding Height
26.5 mm
T/S Parameters
Resonant Frequency (Fs)
30.00 Hz
Re
3.60 \u2126
Qes
1.160
Qms
16.00
Qts
1.080
Vas
59.80 liters
Sd
506.70 cm\u00B2
Mms
160.70 grams
Rms
1.90
Cms
0.1750
Bl
9.90 T\u00B7m
Le
1.000 mH
Sensitivity
84.20 dB
Design Details
Surround Material
NBR
Cone/Dome Material
GF Honey Comb
Spider
Nomex
T-Plate
8 mm
Xmax (peak)
9.25 mm
Xmech
17.25 mm
Overall Diameter
323.00 mm
Bolt Circle Diameter
305.00 mm
Baffle Cutout Dia.
293.50 mm
Mounting Holes
8
Depth (flange to rear)
73.70 mm
Net Weight
5.10 kg
Ordering Codes
Product Code
Twiggy12X4-470A
Downloads
Frequency Response & Impedance
2D Drawing
Technical Summary
This design is particularly effective in sealed enclosure systems used in hi-fi subwoofer systems, home theater, in-wall installations, automotive, and under-seat applications, where low-frequency extension and compact form factor are prioritized over high acoustic efficiency.
Enclosure Recommendations
ENCLOSURE RECOMMENDATIONS: Twiggy12X4-470A
Driver: Twiggy12X4-470A (Twiggy12) — 12" Sub-woofer
Key T/S: Fs=30.0Hz, Qts=1.08, Vas=59.8L, Sens=84.2dB
Power: AES 200W / Cont 400W / Peak 800W
Xmax=9.25mm, Sd=506.7cm², Bl=9.9T·m
RECOMMENDED ENCLOSURE TYPE: Sealed
Sealed Alignment (Qtc = 0.707)
Net Volume: 20 liters
Est. -3dB: 60 Hz
Notes: Sealed enclosure with Butterworth (Qtc=0.707) alignment
--- Summary ---
The Twiggy12X4-470A is a 12-inch sub-woofer driver designed for hi-fi subwoofer systems, home theater, in-wall and under-seat installations, and similar domestic or automotive applications. It operates at 84.2 dB sensitivity (1W/1m). The driver features a compliant suspension design suited to moderate-volume enclosures with extended low-frequency response.
In a sealed enclosure, the driver is best suited to a net internal volume of approximately 20 liters, yielding an estimated –3 dB point of 60 Hz. The sealed alignment provides smooth, well-damped response with a predictable second-order roll-off below resonance, well suited to active crossover integration and DSP-controlled bass management.
The driver is intended for use with moderate amplification (approx. 200 W AES / 400 W continuous) and DSP control. A high-pass filter set at approximately 50 Hz is recommended to protect the driver below its usable range. Typical operating bandwidth is 60–100 Hz, making it suitable for integration with a mid-bass or full-range system.
Frequently Asked Questions
- - Shallow, yet high cone excursion
- - Honeycomb cone
- - Ideal for 4x4" wall subwoofer, car underseat subwoofers
ENCLOSURE RECOMMENDATIONS: Twiggy12X4-470A
Driver: Twiggy12X4-470A (Twiggy12) — 12" Sub-woofer
Key T/S: Fs=30.0Hz, Qts=1.08, Vas=59.8L, Sens=84.2dB
Power: AES 200W / Cont 400W / Peak 800W
Xmax=9.25mm, Sd=506.7cm², Bl=9.9T·m
RECOMMENDED ENCLOSURE TYPE: Sealed
Sealed Alignment (Qtc = 0.707)
Net Volume: 20 liters
Est. -3dB: 60 Hz
Notes: Sealed enclosure with Butterworth (Qtc=0.707) alignment
--- Summary ---
The Twiggy12X4-470A is a 12-inch sub-woofer driver designed for hi-fi subwoofer systems, home theater, in-wall and under-seat installations, and similar domestic or automotive applications. It operates at 84.2 dB sensitivity (1W/1m). The driver features a compliant suspension design suited to moderate-volume enclosures with extended low-frequency response.
In a sealed enclosure, the driver is best suited to a net internal volume of approximately 20 liters, yielding an estimated –3 dB point of 60 Hz. The sealed alignment provides smooth, well-damped response with a predictable second-order roll-off below resonance, well suited to active crossover integration and DSP-controlled bass management.
The driver is intended for use with moderate amplification (approx. 200 W AES / 400 W continuous) and DSP control. A high-pass filter set at approximately 50 Hz is recommended to protect the driver below its usable range. Typical operating bandwidth is 60–100 Hz, making it suitable for integration with a mid-bass or full-range system.
This design is particularly effective in sealed enclosure systems used in hi-fi subwoofer systems, home theater, in-wall installations, automotive, and under-seat applications, where low-frequency extension and compact form factor are prioritized over high acoustic efficiency.
AES Power: 200 W,
Continuous: 400 W,
Peak: 800 W.
Sensitivity: 84.20 dB (1W/1m).
