DAPAudio LT-215A, Product Manual

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Controlpanel
Fig. 2
1) Display
Shows the current DSP preset number.
2) DSP mode control
Allows you to select DSP preset 1-16. The presets are divided in two groups, preset 1-8 are optimized
for using the LT-215A standalone (full range). Preset 9-16 are optimized for using the LT-215A in
combination with a LT218BA bass cabinet. Each group has 8 presets: Flat, indoor, outdoor, square,
grass, theatre, hall and user. If you own the optional interface and software, the LT-215A offers you the
ability to program/ edit your presets to your own specific requirements.
3) LED array
Power
Indicates that AC power is connected and the amplifier is turned on.
DSP limit
Indicates that the DSP protection circuitry is limiting the signal, thus preventing digital clipping.
Soft clip
Indicates that the analog soft clipping circuit in the poweramp section is active.
A soft clipping circuit clips short signal peaks in a way that is not sounding unpleasant to your ears.
Although a soft clipping circuit limits your dynamic range, it allows you to operate on higher volume
levels.
Protect
Indicates an electrical or thermal fault condition in the power amp
4) RS-485 Termination (only in older units)
Allows you to switch the RS-485 termination on or off. The last device in a RS-485 setup should always
have a termination resistor connected. If you’re using only one device in a RS-485 setup make sure
that the termination switch is pressed in.
5) RS-485 control sockets
Allows you to control one or more devices from the LT-series using your computer and the included
software. You can connect up to 32 devices.
6) Input XLR input
The input equipped with 3 pole XLR/ jack combo socket is electronically balanced to accept the
(line) signal from any mixing console.
7) Link XLR output
For linking several LT-series speakers.
8) Volume
Use to adjust the input volume level for the LT-215A.
9) Ground Lift switch
When this button is pressed, it separates the signal ground from the chassis ground, enabling you to
eliminate potential ground loops or low-frequency hum.
10) Fuse Holder
Replace the fuse only with a fuse of same specifications (T8A).