U 10A

  • Powerful, integrated Class AB amplifier with 180 W RMS for powerful low-bass
  • Solid and low-resonance die-cast aluminum housing for precise bass response and optimum heat dissipation
  • Heavy-duty 250 mm chassis with extremely stable aluminum diaphragm for compression-free conversion of the amplifier power into sound pressure
  • 2-channel highlevel input with automatic switch-on and 2-channel RCA input
  • Infinitely variable, steep-slope low-pass filter
  • Particularly sensitive adjustment of the phase
  • Cable remote control for volume adjustment included in delivery
  • Particularly flat housing design – ideal for space-saving Untersitz assembly
SKU: U331010 Category: Tag:


Bass is in the smallest cabin – the new HELIX active subwoofers U 10A and U 8A are the first choice when there is a shortage of space in the vehicle and existing car hi-fi systems should be given the necessary kick in the low-frequency range without much effort. Powered by high-performance, integrated Class AB amplifiers with 180 W RMS, the heavy-duty chassis with its extremely stable aluminum diaphragm and the heat-resistant voice coils convert the amplifier power into full sound pressure. The extensive adjustment options, such as the steep-edged, controllable low-pass filter and the particularly sensitive adjustable phase, the bass reproduction can be perfectly adapted to the acoustic conditions in the vehicle.
Equipped with a 2-channel high-level input with automatic activation and a 2-channel RCA input, a trouble-free integration is guaranteed. And thanks to the very compact housing design, even with extremely limited space available, there is always a suitable slot – for example, under the seats.


Power RMS / Max. 180/360 watts

Diameter woofers 250 mm

inputs 2 x RCA 

2 x high level speaker input 

1 x remote In 

1 x remote control input

input sensitivity High level 1.2 – 20 volt 

cinch 0.3 – 4 volts

Input impedance RCA 10 kOhm

Input impedance high level 33 ohms

frequency range 40-150 Hz

lowpass 50 – 150 Hz adjustable

Subsonic 16 Hz / 12 dB / oct.

phase switch 0 ° / 180 ° switchable

phase controller 0 – 180 ° adjustable

Slope lowpass 24 dB / oct.

Signal-to-noise ratio > 92 dB (A-weighted)

Harmonic distortion (THD) <0.4%

operating voltage 10.5 – 16 volts

fuse 25 A maxi plug fuse

Additional features Die-cast aluminum body, wired remote control for volume control, auto remote switch

Dimensions (H x W x D) 78 x 245 x 345 mm


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