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ENCOUNTER
SUBWOOFERS
EN-SW100, EN-SW120, EN-SW150
Subwoofer Parameters
Installation Guidelines
Ensure the audio system is turned off before making any connections to the amplifier, subwoofer or source unit.
Failure to do so could result in permanent damage to the audio system.
When wiring the subwoofer ensure that the wire is protected from sharp objects and always use rubber grommets
when wiring through metal panels. Ensure all terminals and connections are protected from the vehicle chassis and
from each other as failure to do so could result in permanent damage to the audio system.
When connecting the amplifier and subwoofer ensure you connect the positive and negative output wire from the
amplifier to the corresponding subwoofer terminals.
1) Ensure there is adequate clearance and depth for the subwoofer to be mounted
2) Use the supplied ruler to mark out and cut the correct diameter hole
3) Drill the holes for the mounting screws
4) Insert the subwoofer and affix with the appropriate screws (not included)
Optimum Enclosures
EN-SW100 EN-SW120 EN-SW150
Max Power Rating 300 Watts 400 Watts 500 Watts
RMS Power Rating 150 Watts 200 Watts 250 Watts
Frequency Response 24Hz - 3.5kHz 21Hz - 3kHz 20Hz - 2.5kHz
Impedance 4 Ohms 4 Ohms 4 Ohms
Sensitivity 88 dB 89 dB 90 dB
Mounting Depth 120mm (4-3/4”) 136mm (5-3/8”) 153mm (6”)
Mounting Diameter 226mm (8 - 7/8”) 275mm (10-13/16”) 349mm (13 - 3/4”)
Ported EN-SW100 EN-SW120 EN-SW150
Volume (litres) 28.5 48.28 91.28
Volume (cu.ft.) 1.008 1.705 3.223
Port diameter 76.2mm / 3" 76.2mm / 3" 101.6mm / 4"
Port length 255mm / 10" 225.3mm / 8 -
9 /10" 242.5mm / 9 - 1/2"
Tuned frequency (Hz) 41.6 33.0 34.2
Sealed
Volume (litres) 15.71 28.58 85.53
Volume (cu.ft.) 0.56 1.009 3.02
Tuned frequency (Hz) 69.9 53.9 44.4