DA2100 SERIES ADVANCED ELECTRONIC DRUM AMPLIFIERS
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1
INPUTS 1 AND 2
These combo inputs are designed for either TRS or XLR balanced
plugs at line level, either from a mixer or another speaker. The
source can be either mono or stereo.
2
OUTPUTS 1 AND 2
These outputs feed through the signal(s) received from the input(s).
If the crossover is not set to Full-Range Output, the output signal(s)
will be altered by the crossover, which removes audio below the
selected frequency, to allow your amplifiers or speakers that are
fed by the sub to focus all their energy and fidelity on reproducing
signals above the selected frequency.
3
LEVEL SWITCH
Set this switch to match the output level of your source:
- Use +4 when your source operates at +4dBu
- Use -10 when your source operates at -10dBV
If you notice that the rear panel LIMIT LED or front panel LED is
easily or frequently lit red, even when you have the LEVEL knob
turned to a low setting, set this switch to +4 rather than -10.
4
CROSSOVER
This knob controls the high precision DSP crossover. Select a value
between 70 and 150Hz to have the audio below the selected
frequency filtered out of the output signals. Select Full-Range
Output to disable the crossover, and output the same full range
audio received at the outputs. The audio sent to the internal power
amp and speaker will also be filtered, so the subwoofer’s speaker
produces only audio below the crossover frequency. When Full-
Range Output is chosen, the subwoofer’s speaker limits its top
frequency range to 150Hz.
5
PHASE
This switch lets you “flip” (reverse) the phase on the power amp
180 degrees when needed to match the polarity of amplifiers or
speakers that may operate with opposite polarity to the DA12S,
or to account for a phase difference due to the physical distance
between the sub and the full range speakers it is operating with.
When set to 0, phase is unaffected. When set to 180, the phase of
the power amp and internal speaker will be reversed. Once you get
your S12 operating as part of your full setup with your full-range
speakers, try both settings of this switch, and leave the switch on
the setting that provides the most low frequency impact.
6
TIME ALIGNING DELAY
After you’ve set up your system including the DA12S subwoofer and
your full-range amplifiers or speakers, and are playing audio through
the system to evaluate the low frequency response, set the PHASE
switch for maximum low frequency impact, and then turn this knob
until maximum sub bass is heard.
7
VOLUME KNOB
Sets volume of internal speaker.
8
LEDS
- POWER: this LED and front LED will light white when power is on.
- SIGNAL: this LED lights green when audio input is detected.
- LIMIT: this LED and front LED light red when limiter is activated
due to very high level audio input, indicating the VOLUME knob
should be turned down to avoid distorted sound. If the LIMIT
LED comes on when the VOLUME knob is already at a low level,
try setting the LEVEL switch to +4.
9
IEC POWER INPUT
Plug in the IEC AC power cable here.
10
VOLTAGE SELECTOR
Configures DA12S for your territory’s voltage. 110-120V is the
standard in the USA.
11
FUSE CARRIER
If the DA12S will not power on and you suspect its fuse may have
blown, turn off the power switch, and open the fuse compartment
using a small flat blade screwdriver. If metal strip in fuse is broken,
replace with T6.3AL 250V fuse for 110-120 volt operation, or
T3.15AL 250V for 220-240 volt operation.
12
POWER SWITCH
Turns the DA12S subwoofer on or off.
9
10
11
12
1
2
3
4
5
6
7
8
DA12S BACK PANEL
21506756 Simmons DA2100 Series manual_REV.indd 1321506756 Simmons DA2100 Series manual_REV.indd 13 6/14/21 10:55 PM6/14/21 10:55 PM
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