Cadence Ultra Shock US12D2 Accessory

Replaces the previous generation: US12D2

The Cadence Ultra Shock US12D2 is a high-performance subwoofer featuring a 12-inch cone with dual 2 voice coil configuration. Thiele-Small parameters: Fs=33.83Hz, Qts=0.44. Maximum linear excursion (Xmax): 14.55mm. Designed for deep bass reproduction and high SPL output.

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Specifications

size inches

voice coil config

Thiele-Small Parameters

Measured at small signal levels per AES standards

Electromechanical

F_s(Resonant frequency)

33.83 Hz

R_e(DC resistance)

2 Ω

Q Factors

Q_ts(Total Q)

0.44

Compliance & Mass

V_as(Equiv. volume)

24.51 L

Excursion

X_max(Linear excursion)

14.6 mm

Sensitivity

SPL₀(1W/1m)

93 dB

Power Handling

P_e(RMS power)

750 W

Parameters measured per AES2-1984 (r2003) standards. Small-signal parameters valid within linear operating region.

Where to Buy

Updated 4/24/2026

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Frequently Asked Questions

What is the Cadence Ultra Shock US12D2?

The Cadence Ultra Shock US12D2 is a car audio equipment made by Cadence. View full specifications and where to buy on this page.

Where can I buy the Cadence Ultra Shock US12D2?

You can purchase the Cadence Ultra Shock US12D2 from authorized dealers listed in the "Where to Buy" section on this page. We recommend buying from authorized retailers to ensure warranty coverage and genuine products.