7
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the LF loudspeaker (the power being not wasted for the cone
“
flapping
”
) and thus to raise
the sound pressure created by the speaker system without any danger of overheating the
LF drivers.
When it is necessary to achieve a linear frequency response to drive full-range speaker
systems generally used in studios or in cinema theatres, the input filter can be disabled
(bypassed for each channel individually) with the slide switches located on the amplifier rear
panel.
See below the enabled and disabled filter low frequency response diagrams.
Replaceable Input Module (Option)
This feature allows the owner to replace the standard input module with an input
module having an input sensitivity switch or with the one containing a crossover. For any
details as to purchasing and installation of the replaceable modules, please, contact our
local dealers, or send your e-mail messages to: support@parkaudio2.com.
Operating Modes
STEREO
–
two channels drive two separate loads from two separate signal sources.
MONO
–
two channels drive two separate loads from a single input signal source.
BRIDGE
–
two channels drive the same load from a single signal source.
The operating modes can be selected with the slide switch located on the rear panel.
Ground Lift
This slide switch is used to decouple the signal ground and the chassis ground in order
to reduce AC noise when several amplifiers are connected together.
Removable Power Cord
This feature is provided for convenience of transportation and rack mounting.
Low Frequency Response for Different Settings
of the Input Filter Switch
20Hz
50Hz
100Hz
200Hz
900Hz
-10
-5
0
5
10
«ON »
20Hz
50Hz
100Hz
200Hz
900Hz
-10
-5
0
5
10
«OFF»
Linking up Signal and Speaker Systems in Case of Single Amplifier Operation
within a Two-Way Mono Set
(only when an input module with a crossover is installed)
Input Signal Source
Subwoofer
Satellite
Crossover Settings in Case of Operation of a Single Amplifier within
a Two-Way Mono Set
CHANNEL 2
SWITCHED OUTPUT
–
any position
CROSSOVER
–
LO position
CHANNEL 1
SWITCHED OUTPUT
–
any position
CROSSOVER
–
HI position
