Helix U 8A Ultra-compact 20 cm /8" active subwoofer

HELIX U 8A

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 8” / 200 mm chassis with extremely stable aluminum cone for compression-free transformation of the amplifier power into sound pressure
• Integrated Class AB amplifier with 180 W RMS power
• 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: 8" / 200 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: 45 - 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"