Your JENSEN EHT-909 is an
extremely powerful Active Subwoofer powered
by an on-board 280 Watt RMS amplifier. Twin 10”
heavy duty “monster” drivers – one down-firing and
one rear-firing will spread Bass throughout your room.
Floor Positioning: Best room location is in,
or across a corner. Bass response can vary slightly as Subwoofer
frequencies are mainly non-directional, and room acoustics may differ from one corner to the
next. Therefore we suggest trying two or three locations before settling on a permanent location.
This location of course, will need a Power Point.
Subwoofer amplifier features.
LEDs on front panel are Purple when active and Red when on standby. Standby mode, like on
a TV draws next to no power.
OFF/AUTO/ON switch: Leaving your EHT-909 ON permanently will remain ON and
continue to draw power and purple LEDs will continue to glow.
Switch to OFF when not using for long periods or when on
holidays (RED LEDs). We recommend switching to AUTO
permanently so your EHT-909 will activate automatically when
incoming signal is received (PURPLE) then revert to standby
(RED) when signal is ceased. When powering down, it is not
uncommon to take between 15 and 40 minutes for LEDs to revert to RED from PURPLE.
AUTO can be left on indefinitely.
PHASE Switch: Once your entire speaker system is completely set-up, flick this switch
from “0” to “180” and leave on setting that provides the most
Bass. Leave switch on “ 0” if no audible increase is detected.
If running multiple EHT-909’s, ensure all are set to same position.
This will ensure all woofers are operating together in the same room
so that Bass cancellation does not occur.
FREQUENCY Knob: This adjusts how low (in frequency terms) you wish your EHT-909
to operate at. In other words, 40 Hz is a way lower and deeper frequency than 100Hz. So if you
set at say, 70Hz you will be amplifying all music 70Hz and below and filtering out everything
above which is the correct intention of a Powered Subwoofer. Take care not to advance this
control too far as overloading may occur (see below setting recommendations).
EHT-909
.
.
OFF
AUTO
ON
PHASE
0
0
0
180
VOLUME Knob: Advance this Volume control to harmonize your EHT-909 with Front /
Center speakers etc. DO NOT set this on maximum (see below setting recommendations).
LOW LEVEL IN and OUT sockets: Connect to IN (red) socket from your AV
Receiver. The OUT (black) socket is to connect additional EHT-909’s using a 1RCA to 1 RCA
lead. You may add as many EHT-909’s as you are game (see page 3). You can buy these leads
in 2,5 or 10 mtr lengths from our website.
Connections.
Option A. Using with AV Receiver in 5.1, 7.1, 9.1 etc.
Connect a 1RCA to 1RCA
lead (available from
our website) from
SUB-OUT on
your AV
\Receiver
to LOW
LEVEL IN
(red socket).
Option B. Using with Stereo amplifier.
To add an EHT-909 Subwoofer to your Stereo
Speakers, run one pair Speaker Leads
from your Stereo amplifier to HI
LEVEL INPUT on EHT-909.
Then run another pair
Speaker Leads from HI
LEVEL to your existing
Speakers. With EHT-909
set to “AUTO” your
Subwoofer will activate
and work in sync with
your existing Speakers.
Note: there is no signal
or power loss between amplifier
and speakers, when “splicing-in”
your EHT-909 Subwoofer.
Stereo Amplifier.
Red/Black speaker
terminals.
Sub-Out
socket
.
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