Alpine SXE-1750S - 6.5" (16.5cm) 2-Way Separate Speaker System

Advanced configuration:
Separate 2-way component system (independent woofer + tweeter) for maximum installation flexibility and soundstage adjustment

Reference specifications:

• Rated power (RMS): 45W (actual CEA-2006 values)

• Peak power: 280W (IEC 268-5)

• Effective bandwidth: 60Hz-20kHz (±2dB in anechoic chamber)

• Sensitivity: 90dB/W/m (measured with pink noise 2.83V/1m)

• Nominal impedance: 4Ω (minimum 3.2Ω @ 120Hz)

Proprietary technologies:

• NDRT (Neodymium Differential Ring Tweeter):
  • 25mm tweeter with Mylar-Titanium dome
  • Magnetized fixing system
  • Response up to 40kHz (-10dB)

• Natural Fiber Cone:
  • Diaphragm made of vegetable fiber composite
  • Butyl rubber suspension
  • 30mm Kapton coil

Acoustic advantages:
▸ Linear phase up to 180° off-axis (up to 8kHz)
▸ Harmonic distortion <0.3% (100Hz-5kHz @ 90dB)
▸ Attack time 0.15ms (tweeter)

Complete kit includes:

• 2 x 16.5cm woofers (62mm deep mounting)

• 2 tweeters with 3 mounting systems (angle adjustable)

• 2nd order passive crossovers (3.5kHz, -12dB/octave)

• Professional hardware for installation

Installation requirements:
• Recommended power: 45-100W RMS (class AB preferred)
• Mandatory acoustic treatment (minimum deadening 2mm)
• Ideal tweeter positioning:

• Height: 80-110cm from the floor

• Distance: 60-90cm between tweeters

• Angle: 15-30° towards the listener

Comparative performance:
• +5dB dynamic range vs. equivalent coaxial systems
• +30° better horizontal dispersion
• 40% less distortion in high mids

Professional applications:

• SQL Systems (Sound Quality League)

• Premium vehicles (requiring custom assembly)

• Stage 3+ Audio Preparations

Additional technical data:

• Woofer weight: 1.8kg (including magnet)

• Fs: 58Hz (resonant frequency)

• Qts: 0.38 (optimized for infinite boxes)

• Xmax: ±3.5mm (linear)

Guarantee:
36 months (subject to certified professional installation)

Certifications:

• THX Select2 Automotive

• CEA-2031 compliant

• Tested on Klippel chamber

Setup recommendation:
Alpine KTA-450 amplifier or equivalent
Recommended active configuration (bi-amp)