Lite2Sound QB Stereo | User Guide 1.2
Rare Waves LLC
rarewaves.net
If the LED light is blinking, it means the battery level is low and sound quality may
be affected. You don’t need to change the battery immediately when the LED stars
blinking. It is OK to keep using it until the sound quality has diminished noticeably.
The battery compartment is on the bottom of the unit. Remove the two screws with
a small screwdriver and lift off the base plate. Pull the old battery out of the metal
clip and pop the connector off of the battery terminals.
Install a new 9V battery. Alkaline or lithium type is recommended. Snap the battery
into its retainer clip, then replace the bottom cover of the unit by tightening the two
screws.
You may use a rechargeable 9V battery, but note that connecting the AC adapter
does not recharge it while it is installed in this unit.
AC Adapter
This unit requires an AC adapter with 9 volts DC regulated output. It shall have
center positive polarity, and a 2.1 x 5.5 mm barrel plug.
Note: ‘BOSS-type’ adapters for guitar pedals are center negative, therefore they are not compatible with
this unit.
This unit uses less than 50 mA of current. The original AC adapter included with it is rated for 0.3A (300
mA) output.
The internal battery is disconnected whenever the AC adapter plug is inserted. In
other words, it automatically switches to battery power when the AC adapter is
removed.
Power Source
Lite2Sound QB Stereo can be powered from a 9V battery or AC adapter (included).
Turn the unit ON by rotating the control knob. It will click and the LED light
indicates the unit is receiving power.
Remember to turn the unit off when not in use, to save battery.
Remember to remove the battery before putting the unit in storage, so it can’t be
damaged by a leaky battery.
Blinking LED - battery replacement
Power protection
This unit is protected against reverse polarity, and it is also protected against
excess voltages at the DC input jack. Therefore if you connect an incompatible AC
adapter, you may notice one of the following problems:
–
Power LED does not come on. No sound
. This means the AC adapter's polarity
is wrong, or the AC adapter is not receiving mains power.
–
Unit works OK for a short time, then it goes dead
. This indicates the AC
adapter's output voltage is too high, causing the unit to enter a temporary self-
protection mode. If this happens, switch to battery power, or wait 5 minutes for the
safety feature to reset itself, then connect an appropriate AC adapter.
Sensors
This unit includes two unfiltered PIN photodiode
sensors that detect light from 400 nm (blue) to 1100 nm
( near-IR).
The sensors are angled outward to produce stereo
sound. The pickup patterns of the sensors overlap
partially in the center, creating a stereo image based
on differences in amplitude between the channels.
You can exaggerate the stereo image by holding a card
between the sensors.
Tripod mount
This unit will screw on to the threaded stud of a standard camera tripod. It is
designed to fit mini tripods.
The rubber feet may get in the way of attaching the quick release plate of a full size
tripod, but they can be removed if necessary. The feet are held in by interference
(not glue), so you can pop them out of their holes without damaging anything.
Replace the feet by pressing them in with a twisting motion.
Base plate
9V Battery
Tripod mount
