Bass is in the smallest hut – the new HELIX active subwoofers U 10A and U 8A are the first choice when installation space in the vehicle is scarce and existing car hi-fi systems should be given the necessary kick in the low frequency range without great effort. Driven by powerful, integrated Class AB amplifiers with 180 W RMS, the heavy-duty drivers with their extremely stable aluminum cone and heat-resistant voice coils convert the amplifier power into rich sound pressure. Thanks to the extensive setting options, such as the steep, adjustable low-pass filter and the particularly finely 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 switch-on and a 2-channel cinch input, problem-free integration is guaranteed. And thanks to the very compact housing design, a suitable installation location can always be found, for example under the seats, even when space is extremely limited. Powerful, integrated Class AB amplifier with 180 W RMS for powerful deep bass. Massive and low-resonance die-cast aluminum housing for precise bass reproduction and optimum heat dissipation. Heavy-duty 200 mm chassis with extremely stable aluminum cone for compression-free conversion of amplifier power into sound pressure. 2-channel high-level input with automatic switch-on and 2-channel cinch input. Infinitely variable, steep-edged low-pass filter. Particularly sensitive adjustment of the phase. Cable remote control for volume adjustment included. Particularly flat housing design – ideal for space-saving underseat installation. Power RMS / Max. 180 / 360 watts. 2 x cinch 2 x high-level speaker input 1 x remote in 1 x remote control input. High level 1.2 – 20 volts RCA 0.3 – 4 volts. Input impedance high level. 50 – 150 Hz adjustable. 16 Hz / 12 dB/oct. 0° / 180° switchable. 0 – 180° adjustable. Edge steepness low pass. Signal / noise ratio. > 92 dB (A-weighted). Total Harmonic Distortion (THD). 10.5 – 16 volts. 25 A maxi plug-in fuse. Die-cast aluminum body, wired remote control for volume control, auto remote switch. Dimensions (H x W x D).