Axiom SW18AP User Manual

KEY FEATURES

• High power compact subwoofer
• Small size for a good output-toweight ratio

INTRODUCTION

The SW18AP is a high power compact subwoofer designed to partner ED series
point source loudspeakers for fixed installations in discotheques, nightclubs and
bars, and live music clubs, and for portable corporate audio-visual applications. It
features a high excursion 4" voice coil, 18" driver equipped with a double centred
spider that maintains linear voice coil travel even at high output levels. The
phenolic birch plywood cabinet is equipped with pole mount socket, stacking feet,
flush handles, and heavy duty wheels to enable easy handling and transportation.
The SW18P subwoofer system is equipped with a high power 18" (460mm)
transducer capable of long excursion (up to 30mm peak-to-peak), controlled by
high stiffness Double Silicon Spider as centering suspension and by heavy duty
surround. The motor structure features high strength (BL²/Re) with optimized
symmetry and excursion controlled by Inner Flux Demodulating Ring. The robust
copper 100mm (4") voice coil is wounded in two different layers both outside and
inside the coil support, then doubling the coil surface exposed to air cooling and
consequently improving the long term thermal capacity of the loudspeaker. Cones
are made of very high-stiffness glass fiber reinforced paper, featuring also invisible
water repellent treatment.
It will deliver punchy bass performance from a very compact cabinet, and thanks
to the integral pole mount socket partners well with any of the ED series of point
source loudspeakers in portable corporate audio-visual applications, while its small size enables it to be easily fitted into tight venue spaces.

TECHNICAL SPECIFICATION

Acoustical
System type
Transducer
Frequency response (±3 dB)
Sensitivity (1.41V @ 1m, 2Pi)
Maximum Peak SPL @ 1m
Electrical
Nominal Impedance
Minimum Impedance
Power Handling Continuous*
Power Handling Program
Power Handling Peak
Power Compression
* AES Pink Noise Power
revision 2017-07-18
USER MANUAL
SW18P
passive subwoofer
Bass-reflex
18" (460 mm), 4" (100 mm) VC 8 ohm,
High stiffness, water repellent, glass fibre
reinforced cone
Flux Demodulating Ring VC
Double Centering Spider Suspension
36 Hz – 100 Hz (Processed)
98 dB
132 dB
8 Ω
6.3 Ω @ 36 Hz
1200 W
2400 W
7000 W
@ -10 dB Power (240 W) = 0.7 dB
@ -3 dB Power (1200 W) = 1.5 dB
@ 0 dB Power (2400 W) = 2.2 dB
• Bass-reflex Direct Radiating Subwoofer
Connectors
Connector Type
Input Wiring
Mechanical
Width
Height
Depth
Depth Including Wheels
Construction
Paint
Wheels
Transport
Net Weight
Neutrik® Speakon® NL4 x 2
Pin 1+/1-; (Pin 2+/2- pass thru)
650 mm (25.6")
500 mm (19.7")
564 mm (22.2")
672 mm (26.5")
15 mm Phenolic Birch Plywood
Black textured paint (or White)
4 heavy-load 80 mm ø
2 handles
40 Kg (88.2 lbs.)