Operating instructions

– 5 –
18)
STEREO / DUAL SELECTOR SWITCH
- Allows the PPA-300’s power amps to be configured as stereo or “dual
- mode”. In the Stereo mode, the system operates as a traditional stereo power mixer / amplifier. In the dual
mode, the channel level controls set the level for the Main mix (LEFT master volume control). The Rev / Aux
controls set the individual channel levels for the Monitor (RIGHT master volume control). When the Dual mode
position is selected with the switch, the Pan and Balance controls become inoperative (you have selected a
mono setting for the output). Additionally, the internal reverb is only sent to the MAIN speaker output. Reverb
is not available to the MONITOR speaker output. The reverb level sends for the MAIN mix are also controlled
from the channel DSP / AUX channel controls. The overall reverb level to the MAIN mix is controlled by the
Reverb Master Control.
19)
EQ CONTROL
- Adjusts the EQ sliders. The 7 band EQ is connected into the system, when the EQ button is in
the off position the audio signal will go directly to the system without EQ.
20)
SYSTEM EQUALIZER
- Adjust the amount of frequency increase or decrease in the channel. The left
and right channels are adjusted simultaneously at same time and same pace. Set frequencies are at
60Hz,160Hz,400Hz,1KHz, 2.5KHz,6KHz, 16KHz, adjusting range within +/-12dB; When the sliding stick is at
the middle position, the frequency response is “flat” with no frequencies increased or decreased; Sliding the
stick up increases the frequency response of that band, sliding the stick down decreases that band’s frequency
response. To set the EQ, start with this control from the middle (“0dB” marked) position. Simply slide the sticks
until your desired sounds are there.
MIC/LINE STEREO INPUTS
22)
MIC INPUT JACK
- Plug your microphone in here. This is a three pin XLR balanced female input.
21)
LINE INPUT JACK
- Plug your instrument in here. This 1/4” balanced input jack is suited for use with items
having a line level output such as high impedance microphones, keyboards, drum machines, outboard effects,
etc. It accepts both balanced and unbalanced cables.
23 & 32)
STEREO INPUTS
- Stereo phono (7/50”TRS) input jacks and 1/4” TRS jacks (wired for Tip=Left,
Ring=Right and Sleeve= Ground, the standard format of commercially available cables) designed for use with
a tape player, DVD player, or any other stereo source. Use these jacks for connecting the output of a computer
sound card or other similar device to your PPA-300. Adapters that convert an 1/8” male plug to RCA male
phono plugs are readily available at electronics stores.
Note:
These connectors are set at a constant “line level”.
24 & 30)
STEREO INPUTS
- Stereo phono (RCA) input jacks and 1/4” TRS jacks (wired for Tip=Left, Ring=Right
and Sleeve= Ground, the standard format of commercially available cables) designed for use with a tape
player, DVD player, or any other stereo source. Use these jacks for connecting the output of a computer sound
card or other similar device to your PPA-300. Adapters that convert an 1/8” male plug to RCA male phono plugs
are readily available at electronics stores.
Note:
These connectors are set at a constant “line level”.
25)
STEREO OUT
- The Tape Out RCA jacks provide a mix output that is independent of the master level controls.
Connect these to the inputs of a recording device, such as a cassette or DAT recorder, to record your event.
Changes made during the performance, to the input level controls, channel EQ, and reverb controls will be
heard in the Tape Out mix. Changes made to the master level controls will not effect the level of the recording.
Adjust recording levels according to the instructions on your recording device.
AUX AND FOOT SWITCH JACKS
26)
EFF / AUX SEND
- Plug your external effects signal processor in here. Although the PPA-300 is already
equipped with on-board digital reverb, an external effects signal processor can be incorporated into the PPA-
300’s signal flow. This 1/4” output jack is designed to feed the PPA-300’s effects bus signal to an external signal
processing driver, such as a digital delay or a chorus.
27)
FOOT SWITCH
- The Foot switch connector allows the internal reverb return to be muted, or shut off, through
the use of a simple foot operated switch. The foot switch should be wired to connect the tip to the sleeve to turn
the reverb off, and requires a standard speaker or instrurnent cable.