Bass is in the smallest hut –If mounting space in the vehicle is scarce and existing car hifi systems badly need the "extra kick" in the low frequency range without great effort, the new HELIX active subwoofers U 10A and U 8A are the right choice. Driven by powerful, integrated Class AB amplifiers with 180 W RMS, the heavy-duty drivers with their rock-solid aluminum cones and heat-resistant voice coils easily transform the amplifier power into punchy bass. Thanks to comprehensive setting options like the adjustable, high-slope lowpass filter and particularly sensitive phase control, the low frequency reproduction can be perfectly adapted to the acoustic conditions inside the vehicle. Equipped with a 2-channel highlevel input with automatic turn on function as well as a 2-channel lowlevel RCA input a seamless integration is guaranteed. And thanks to the especially shallow cabinet design the installation will be a no-brainer, especially if space is extremely limited – these small "bass boosters" may even fit under the seats, for example.

Features

Powerful, integrated Class AB amplifier with 180 W RMS power for punchy bass
Solid and low-resonance diecast aluminium housing for precise bass reproduction and optimum heat dissipation
Heavy-duty 10” / 250 mm chassis with extremely stable aluminum cone for compression-free transformation of the amplifier power into sound pressure
2-channel highlevel input with Auto Turn-on function as well as 2-channel lowlevel input
Continuously adjustable, steep-flanked lowpass filter
Particularly sensitive adjustment of the phase
Cable remote control for volume adjustment included in delivery
Especially flat housing design - ideal for space-saving under-seat mounting

Technical data

Power RMS / max.	180 / 360 Watts
Woofer diameter	10" / 250 mm
Inputs	2 x RCA / Cinch 2 x Highlevel speaker input 1 x Remote In 1 x Remote control input
Input sensitivity	Highlevel 1.2 - 20 Volts RCA / Cinch 0.3 - 4 Volts
Input impedance RCA / Cinch	10 kOhms
Input impedance highlevel	33 Ohms
Frequency response	40 - 150 Hz
Lowpass	50 - 150 Hz adjustable
Subsonic	16 Hz / 12dB/Oct.
Phase switch	0° / 180° switchable
Phase shift	0 - 180° adjustable
Slope lowpass	24 dB/Oct.
Signal-to-noise ratio	> 92 dB (A-weighted)
Distortion (THD)	< 0.4 %
Operating voltage	10.5 - 16 Volts
Fuse	25 A Maxi-fuse (APX)
Additional features	Diecast aluminum housing, cable remote control for volume adjustment, Auto Remote switch
Dimensions (H x W x D)	78 x 245 x 345 mm / 3.07 x 9.65 x 13.58"

Scope of delivery

1 x Active subwoofer HELIX U 10A
1 x Cable remote control
1 x Mounting material
1 x Instruction manual