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LF Sub-woofer 10"

Twiggy10

Code: DR-10-025-4R-B2-C0001

Variant of DR-10-025

Key Features

  • Ultra-Shallow Design
  • Composite, honeycomb structure cone
  • High Motor Strength & Precision Control

Quick Specs

Impedance

4 Ω

Program Power

300 W

Sensitivity

87.00 dB

Fs

40.70 Hz

Magnet

Neodymium

Voice Coil

50.8 mm

Design Notes

Twiggy 10 brings the proven Twiggy concept into a compact 10-inch platform — engineered for applications where mounting depth is limited but performance cannot be compromised.
Designed around an extended voice coil architecture and optimized motor structure, Twiggy 10 delivers exceptional linear excursion while maintaining shallow installation depth. The result is powerful, controlled low-frequency output from compact enclosures.
With strong motor force (high Bl), low distortion behavior and carefully balanced suspension compliance, Twiggy 10 provides fast transient response, impressive punch, and extended bandwidth for modern slim-profile systems. Ideal for: Slim subwoofers, Shallow line arrays, Compact high-output installations, Space-restricted portable systems.

Specifications

General Specs

Nominal Diameter 10"
Rated Impedance 4 Ohm
Magnet Neodymium
Basket Material Steel

Power Handling

AES Power 150 W
Continuous Power 300 W
Peak Power 600 W

Voice Coil

Diameter 50.8 mm
Winding Wire CCAW
Former kapton
Winding Height 28.12 mm

T/S Parameters

Resonant Frequency (Fs) 40.70 Hz
Re 3.50 \u2126
Qes 0.330
Qms 16.61
Qts 0.330
Vas 14.57 liters
Sd 305.42 cm\u00B2
Mms 138.30 grams
Rms 2.10
Cms 0.1100
Bl 19.24 T\u00B7m
Le 0.900 mH
Sensitivity 87.00 dB

Design Details

Surround Material NBR
Cone/Dome Material GF Honey Comb
Spider Nomex
T-Plate 8 mm
Xmax (peak) 10.06 mm
Xmech 18.06 mm
Overall Diameter 264.00 mm
Bolt Circle Diameter 246.00 mm
Baffle Cutout Dia. 224.00 mm
Mounting Holes 8
Depth (flange to rear) 80.00 mm

Ordering Codes

Product Code DR-10-025-4R-B2-C0001

Covered by the REDCATT 3-year Limited Warranty.

Frequency Response & Impedance

Frequency response of Twiggy10

2D Drawing

2D drawing of Twiggy10

Technical Summary

The Twiggy10X8-475A is a 10-inch ultra-shallow subwoofer driver designed for space-restricted applications where conventional driver mounting depth is prohibitive. With a mounting depth of only 80 mm - roughly half that of a conventional 10-inch woofer - the driver fits under sofas, behind wall panels, beneath car seats, and inside slim furniture-integrated audio systems. It achieves 10.06 mm of linear excursion (18.06 mm mechanical) through an extended voice coil architecture featuring a 2-inch CCAW voice coil on a Kapton former with a 28.12 mm winding height and a neodymium motor with Bl of 19.24 T.m. The glass fiber honeycomb composite cone provides a stiff, lightweight radiating surface, and the rubber surround and Nomex spider support the full excursion range with controlled linearity. Volume displacement is 307 cc, providing substantial low-frequency output capability despite the shallow profile.

For applications requiring deeper anechoic extension, vented or passive radiator configurations in 12 to 17 liters tuned between 34 and 45 Hz extend the -3 dB point to 29-41 Hz. Port lengths exceed 500 mm at these tuning frequencies, making folded slot ports or passive radiators the practical implementation. A passive radiator of matching shallow profile and excursion capability is the preferred solution, enabling a slim panel subwoofer approximately 125 mm deep with genuine deep bass extension to the low 30s Hz. The driver is rated for 150 W AES / 300 W continuous power handling at 4-ohm nominal impedance.

This driver is particularly effective in under-sofa and furniture-hidden subwoofers, automotive shallow-mount installations, in-wall and in-ceiling distributed bass systems, slim panel subwoofers for modern living spaces, and shallow line array bass sections. The ultra-shallow mounting depth, high motor force, extended voice coil excursion, and honeycomb composite cone construction enable deep, controlled bass reproduction from enclosures and installation spaces that cannot accommodate conventional subwoofer drivers.

Recommended enclosure volumes are simulated results. For best enclosure volumes and tuning, we recommend secondary simulation and careful evaluation. Several rounds of samples and fine-tuning may be required for optimal results.

Enclosure Recommendations

Recommended enclosure alignments (bass reflex):
- 10 liters tuned to 45 Hz: high output, strong mid-bass, reduced excursion; -3 dB approx. 41 Hz, HP filter 37 Hz
- 15 liters tuned to 40 Hz: balanced response, general-purpose (recommended); -3 dB approx. 34 Hz, HP filter 30 Hz
- 15 liters tuned to 34 Hz: extended low-frequency, requires HP filter protection; -3 dB approx. 29 Hz, HP filter 22 Hz

Frequently Asked Questions

  • - Ultra-Shallow Design
  • - Composite, honeycomb structure cone
  • - High Motor Strength & Precision Control
Recommended enclosure alignments (bass reflex):
- 10 liters tuned to 45 Hz: high output, strong mid-bass, reduced excursion; -3 dB approx. 41 Hz, HP filter 37 Hz
- 15 liters tuned to 40 Hz: balanced response, general-purpose (recommended); -3 dB approx. 34 Hz, HP filter 30 Hz
- 15 liters tuned to 34 Hz: extended low-frequency, requires HP filter protection; -3 dB approx. 29 Hz, HP filter 22 Hz
Ceiling tile / surface-mount distributed audio
AES Power: 150 W, Continuous: 300 W, Peak: 600 W. Sensitivity: 87.00 dB (1W/1m).

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