Jensen SPX-17 Quick Start Manual

Congratulations on investing in one of JENSEN's finest Subwoofer
Systems. You will find this information valuable for the long term
Your JENSEN SPX-17
10" Heavy Duty Sub driver powered by an on-board 160 Watt RMS amplifier. You may string
additional SPX-17 subwoofers to your SPX-17 if so desired by connecting to the "Line Output"
section of your SPX-17's amplifier (see Line Output section below).
Voltage setting (if applicable).
Your SPX-17 has been factory set to 220/240 volts using 1.6 amp fuse. If 110 volts is required,
slide the red voltage selection switch from 240v to 110v and fit a 3 amp fuse (not supplied). Fuse
compartment and voltage switch is located at power lead input area on amplifier.
Room Placement.
better still-across a corner. This will enable the rear port to "breath" efficiently and provide
maximum "acoustic coupling" into your room i.e. more Bass. With different room positioning,
Bass response can vary as Subwoofer frequencies are mainly non-directional.
Subwoofer amplifier features.
Red when on standby (standby mode, like on a TV draws next to no power) Switch the SPX-17
amplifier switch to "AUTO" and this can be left on indefinitely as the SPX-17 automatically
activates when it senses as incoming signal. Front panel LED will then turn Blue. After signal has
been removed between 15 and 40 minutes, amplifier will revert to Standby mode and LED will
change to Red.
Level Control Knob
balance and harmonize with output from your Front / Center etc. etc. speakers. DO NOT set this
on maximum. Be careful not too advance this control too far as overload may occur causing
damage to your SPX-17 speaker (see below setting recommendations).
Frequency Control Knob.
SPX-17 to operate at. In other words, 70 Hz is a lower and deeper frequency than 90Hz, so if you
set at 70Hz you will be amplifying all music information 70Hz and below this frequency and
filtering out everything above which is the ideal intention of a Powered Subwoofer. Take care not
to advance this control too far as overloading may occur (see below recommendations).
Phase Control Switch
Speaker, Surrounds etc.). This Phase switch can be set to ensure the SPX-17 woofer is "in phase"
with all other woofers operating together in the same room so that Bass cancellation does not
occur. Once your entire speaker system is completely set-up, flick this switch from "NOR" to
"REV" and leave on setting that provides the most Bass. This will be the best setting and be
correctly "in phase". Leave switch on "NOR" if no audible increase is detected.
Line Output sockets
additional 1RCA to 1 RCA lead. If required, you may "daisy-chain" as many as you like.
160 Watt Powered Subwoofer
enjoyment of your SPX-17.
is an integrated Active Subwoofer System with a single
Best positioning for your SPX-17 is appx. 10-20cm from a wall or
is your volume knob. This adjusts the output of your SPX-17 to
This control adjusts how low (in frequency) you wish your
is only used if several speaker boxes are in the one room (i.e. Center
are provided for stringing additional SPX-17 subwoofers using an
SPX-17
Light on front panel is Blue when active and