User manual

2. Specifications AX1118SP
AX1118SP
• 18” neodymium woofer with ISV, DDR and
DSS
• Exponential vents
• Integrated suspension and transportation
systems
• Amp Ready Format
Description
The AX1118SP is a direct radiation bass-reflex
suspended subwoofer. AX1118SP complements
AX3210P whenever extended bass frequency
reproduction is required in the creation of a
suspended array (model EDGE121SP from the
EDGE Professional Series can also be used as
ground stack subwoofer). The 18” woofer fea-
tures a 5.5” ISV voice coil and an optimized
neodymium magnet str ucture to ensure contin-
uous excursion control. The double demodula-
tion ring DDR and double silicon spider (DSS)
guarantees a controlled excursion and very low
distortion levels. In order to improve the ef-
ficiency, acoustic compression, maximum out-
put level and distortion reduction, the AX1118SP
ports feature an innovative profile. Sharp dis-
continuity at the end of traditional ports causes
turbulence which then affects the overall perfor-
mance. Proel’s Touring R&D Department have
designed a port with a streamlined profile which
drastically reduces the generation of noise inside
the port. Suspension and transportation me-
chanics are integrated and compatible with the
AX3210P unit, thus allowing the creation of com-
pletely suspended systems with excellent perfor-
mance even at the most extended bass range.
Thanks to the power handling and the mechani-
cal strength of the driver together with the careful
acoustical design, the AX1118SP subwoofer is
capable of producing 3 dB more acoustical out-
put than any other 18” direct radiating subwoofer.
The AX1118SP has been designed in an AMP
READY Format allowing the eventual future in-
stallation of on-board amplifier/digital processor
unit.
Data Sheet
System AX1118SP
System Type direct radiation bass-reflex
subwoofer
Frequency Response 32 Hz - 80 Hz
Maximum Peak Output 133 dB@1m
Signal Processing Proel DSO26
Lake Contour Pro 26
Crossover Frequency from 80 Hz to 160 Hz
Input Power Rating 1500 W AES, 3000 W program
Sensitivity 98 dB SPL ( 2.83V@1m)
Nominal Impedance 8 Ω
Transducer
Low Frequency Device 18” neodymium woofer - 5.5”
voice coil
Mechanical Data
Construction 15 mm birch plywood
internally reinforced
with paint finish
Flying System built in suspension system
Dimensions (WxHxD) 79.6 x 48 x 66.5 cm
Weight 59 kg - 130 lb
Weight With Skate 67 kg - 147.7 lb
Engineering specifications
The system should be a passive subwoofer with
a frequency response from 32 Hz to 80 Hz. The
system should have an 18” direct radiation bass-
reflex woofer with exponential vents. The woofer
should have an impedance of 8 ohms and a 5.5”
coil. The cabinet should be made out of inter-
nally reinforced 15 mm birch plywood. The sys-
tem should be equipped with an integrated lifting
gear allowing the assembly of AX1118SP and
AX3210P columns. The cabinet front should be
rectangular, and it should be 48 cm high, 79.6
cm wide and 66.5 cm deep. The system should
be Proel AX1118SP.
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