The Prima compact subwoofer family includes the APS 10 S4S 25 cm (10 inches), optimized for enclosures with reduced volume from 10 liters. The single 4-ohm voice coil configuration makes it ideal for use with the AP F8.9 bit amplifier, which provides RMS 260 W with two bridged channels.

It is possible to create custom enclosures with two APS 10 S4S driven by the AP 1D amplifier, using 540 W RMS at a 2 ohm load from the parallel connection of the drivers.

• Size: 250 mm
• Peak Power Handling: 800 W
• Continuous Power Handling: 400 W
• Impedance: 4 Ohm
• Magnet Material: HIGH DENSITY FLUX FERRITE
• Voice Coil Diameter: Ø 60 mm
• Woofer Qes: 0.75
• Cone Material: WATER REPELLENT PRESSED PAPER
• Xmax: 12.6 mm
• Xmech: 18 mm
• Driver Displacement Volume: 1.12
• Re: 3.7 Ohm
• Fs: 28.5 Hz
• Vas: 39.62 l
• Mms: 160 g
• Cms: 0.2 mm/N
• BL: 12.9 T•m
• Qms: 6.9
• Qts: 0.68
• Le: 1.9 mH
• Spl: 83.5 dB
• Weight: 5.24 kg
• Dimensions:
• Dimension A: 270 mm
• Dimension B: 233 mm
• Dimension C: 105 mm
• Dimension D: 88 mm
• Dimension C1: 119 mm