• S722420
  • DE 29323089


Sound quality meets elegance – with the new S-series loudspeakers every ride becomes a special sound experience. The sophisticated design and the use of the latest technologies guarantee excellent sound characteristics with rich bass, accurate mids and crystal-clear highs. Nevertheless, these component systems are not only a highlight in terms of sound quality. Our engineers focused on a novel, timeless elegant design as well as on an easy integration into the vehicle. Low installation depths, a removeable aluminum tweeter housing as well as the innovative, two-part "Flex-Crossover" offer much more freedom in terms of connectivity and installation – especially if the tweeters and woofers are separately installed in the door and A-pillar. Make every ride a special sound experience!


  • 4” / 100 mm woofer with novel basalt-fiber-paper compound cone – a perfect combination of lowest weight, high stiffness and inner damping
  • 1” / 25 mm silk dome tweeter in a noble aluminum housing for balanced, natural sound reproduction and lowest compression effects
  • Individual HELIX basket with additional ventilation holes for better voice coil cooling and high power handling
  • Separate, two-part “Flex-Crossover“ with 12/12 dB slope, bandstop filter and three-stage tweeter level adjustment – well suited for the installation in vehicles with separate mounting positions of the tweeter and woofer
  • Crossovers solely equipped with high grade components e.g. low-distortion air-core coils and minimum-loss Audiotec-foil capacitors for tweeter crossover

Technical data

Power RMS / max. 70 / 140 Watts
Frequency response 75 Hz - 25,000 Hz
Impedance 4 Ω
Sensitivity 1W / 1m 89 dB
Cone material TW: Coated silk dome
M: -
W: Basalt-fiber-paper compund
Crossover 12/12 dB with bandstop filter, tweeter protection  and tweeter level adjustment
Outer diameter TW: 51 mm / 2.0"
M: -
W: 102 mm / 4.01"
Installation diameter TW: 45 mm / 1.77"
M: -
W: 92.3 mm / 3.63"
Installation depth TW: 14 mm / 0.55"
M: -
W: 46.5 mm / 1.83"
 Dimensions crossover Tweeter: 88 x 68 x 28 mm / 3.46 x 2.67 x 1.10"
Woofer: 88 x 68 x 28 mm / 3.46 x 2.67 x 1.10"

Scope of delivery

2 x Tweeter HELIX S 1T incl. mounting material
2 x Woofer HELIX S 4B
2 x Two-part Flex-Crossover
1 x Mounting material
1 x Instruction manual
1 x Mounting pattern

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