Alpine S2-S50 - S-Series 5 Inch 2-Way Hi-Res Audio Coaxial Speaker System

Get Hi-Res Audio Certified sound quality like never before with Alpine's S2-S50 S-Series 5" Coaxial Speakers. Their next-gen design takes entry-level audio to a new level!

Experience Hi-Res Audio and hear your music like never before!

SKU: S2-S50



Alpine S2-S50

S-Series 5 Inch 2-Way Hi-Res Audio Coaxial Speaker System

Certified Hi-res Audio

Ready to unlock your music's true potential? Experience the clear sound and richness of Alpine's S-Series speakers, featuring Hi-Res Audio for the first time!

Alpine's innovative loudspeakers offer faithful audio quality that reaches studio-level Hi-Resolution throughout the entire frequency range. To get the best sound possible, Alpine has crafted the speakers using exclusive composite glass fibre hybrid cone material - it's incredibly light yet durable. With Alpine's unique HAMR surround, the diaphragm has greater control and excursion, resulting in superior sound and deep, powerful bass.

Experience Hi-Res Audio and hear your music like never before!


With cutting-edge technology and engineering, the new S-Series has ushered in a new era of Alpine innovation. The lightweight, robust design composite glass fibre hybrid cone is engineered to work together with Alpine's signature HAMR surround, resulting in dynamic sound with clean, powerful bass.

Meanwhile, the 1" soft dome tweeters provide crystal-clear high frequencies that stretch up to an astonishing 40kHz - allowing for the utmost subtlety and detail in your music. To top it off, this amazing speaker line-up has been tailored to provide optimal system design freedom and compatibility with a variety of vehicles.

Take your in-car audio to the next level with the new S-Series loudspeakers, which rival performance beyond their low price.



HI-RES Certified

The integrated 1″ Soft Dome Tweeters allow your music to come alive! Playing upper harmonics climbing all the way to 40kHz, these beautifully soft yet remarkably detailed tweeters are Hi-Res Audio Certified, bringing the studio to the dashboard with a level of nuance and authenticity not possible with traditional speakers.



Glass Fiber Composite Woofer Cone

The door woofer features an all-new glass fibre composite cone, which due to its directionally woven construction is engineered to be far stronger than a traditional oval cone diaphragm. The resulting rigidity coupled with glass fiber’s innate lightness results in highly controlled cone excursion producing excellent response and audio reproduction. 



HAMR Roll Surround

Alpine-exclusive High Amplitude Multi-Roll surround technology is integrated into the speaker design, which allows for maximum cone movement, delivering powerful and accurate bass notes.


Large Magnet Structure

The large strontium magnets housed on the back of S-Series speakers mean business. Combined with large voice coils and Alpine’s patented HAMR Surrounds, increase cone excursion and the force of the driver to provide louder, punchier sound.

Protective Grille’s (Sold Separately)

Protect your new S-Series speakers, these durable mesh speaker grilles are available for several speakers in the S-Series range and are packaged in pairs. See KTE-S50G (Sold Separately)

Sound Garage, is your Alpine Car Stereo Specialist in the Moreton Bay Region


  • 5″ (130mm) Lightweight Glass Fiber Composite Coaxial Speaker
  • HAMR (High Amplitude Multi-Roll) Surround
  • Large Voice Coil
  • Magnet Material: Strontium Ferrite


  • 0.8″ Extended-Range Soft Dome
  • Magnet Material: Ferrite
  • Application Type: Fixed
  • Grill: Perforated Net

Crossover Network

  • Tweeter: Hi Grade Audio Poly-Capacitor

Power Handling

  • Peak Power: 170 Watts
  • RMS Power: 55 Watts (CTA-2031 Compliant)


  • Frame 129 mm
  • Cutout Diameter: 114 mm
  • Mounting Depth: 50 mm
  • Mounting Height: 16 mm
  • Magnet: 80.0 mm


  • Frequency Range: 65 Hz – 40 kHz
  • Impedance: 4 Ohms (DCR 3.1 ohms)
  • Sensitivity: 87 dB/W SPL (1W @ 1m)
  • Recommended Amplification: up to 55W RMS per channel



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