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APK 570



Kit 2 way 4 ohm


AP 1 + AP 570 + Crossover


300 W Peak Power

APK 570 systems is ideal for car models with doors equipped to house elliptical speakers featuring 5x7 in. woofers and AP 1 tweeter with dedicated crossovers APCX TW 570.The crossovers are ultra-compact to facilitate their installation, and include an attenuation of the tweeter output level for outstanding fine-tuning.The R & amp;D team optimized the electro-acoustic parameters of the new woofers for installation in the car door, respecting all the characteristics of the Prima speakers, such as the compact size of the basket to facilitate installation.The mechanical cut-off of the woofer cone-dust cap system ensures they can be used without a filter, maximizing efficiency to be easily driven by any type of amplifier.The large voice coil ensures high power handling and impeccable control even in the most aggressive dynamic transients.The double Faston connectors with direct link to the tweeter speed up the speakers connection, always ensuring a perfect contact.

Technical Specs

Woofer Size 570 mm
Tweeter Size 26 mm
Woofer Voice Coil Diameter 32 mm
Tweeter Voice Coil Diameter 20 mm
Crossover Type HP 6 dB Oct - 3kHz
Magnet Size Woofer 85 x 40 x 15
Power Handling - Peak 300 W
Power Handling - Continuous 100 W
Impedance 4 Ohm
Frequency Response 55 - 20 k
Woofer Cone Diameter 139 mm
Xmax Woofer 2.5 mm

Electric-acoustic Specs

Re Woofer 3.1 Ohm
Fs Woofer 70 Hz
Le Woofer mH @ 1 kHz 0.23
Vas Woofer 10.5 l
Mms Woofer 14.5 g
Cms Woofer 0.32
Bxl Woofer 4.6
Qts Woofer 0.85
Qms Woofer 6.5
Qes Tweeter 2,78
Spl Woofer 93.5 dB


Weight Woofer 0.88 kg
Weight Tweeter 0.04 kg


AP 1 Tweeter

  1. 26 mm diameter diaphragm combined with a wide-roll surround provides maximum efficiency and reduced resonance frequency.
  2. Acoustic lens designed to compensate for the in-car frequency response in the 10kHz 13kHz bandwidth caused by critical OEM placements.

AP 570 Woofer

  1. 32 mm pure copper voice coil, for high power handling and outstanding low frequency control.
  2. Water-repellent treated paper cone, featuring a profile developed with FEM (Finite Element Method) simulation technology and optimized with the Klippel R&D Scan Vibrometer.
  3. Reduced mounting depth, providing ease of installation in OEMplacements.
  4. “Triple wave” surround profile for maximum linearity of excursion.
  5. Compact basket, protected by abrasion-resistant and scratchproof coating, the motor affixed with damping epoxy adhesive.
  6. High current fast-on terminal with double contact on positive and negative poles for high flexibility and quick connection.

APCX TW 570 Crossover

  1. Optimized for OEM Integration featuring an attenuation switch(0 dB, +2dB) to tune the in-car response according to different installation conditions.
  2. Supplied with fast-on connectors that eliminate any possible connection errors.

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