1
The
LINE OUT RCA jacks
provide a linear fullrange audiosignal to supply an additional amplifier.
3
The
HPF controller (HIGH PASS)
adjusts the cut-off point of the frequency range to below. The cut-off frequency is continuously
adjustable from 10 Hz to 1200 Hz (1.2 kHz).
6
The
BOOST controller
defines the bass bosst from 0 to 12dB @ 50Hz.
MERCURY II
|ENG
21
8
POWER/PROTECT (Also located on the supplied Bass Level Controller)
If the POWER LED lights up, the amplifier is ready for operation.
If the PROTECT LED lights up, a malfunction is indicated. Observe in this case the chapter
TROUBLE SHOOTING
.
9
FUNCTIONS AND OPERATIONAL CONTROLS
2
The
LINE IN RCA jacks
must be connected with the RCA output jacks of the headunit.
4
The
LPF controller (LOW PASS)
adjusts the cut-off point of the frequency range to above. The cut-off frequency is
continuously adjustable from 30 Hz to 150 Hz.
5
The
LEVEL controller
adjusts the input sensitivity of the amplifier to align the audio signal from the head unit.
The input sensitivity is adjustable from 6 Volts (MIN) to 0.2 Volts (MAX).
7
8
9
7
6
5
4
3
2
1
The
X-OVER MODE switch
selects the required operation mode of the amplifier.
Position LPF/BPF:
Lowpass mode (the higher frequencies will be eliminated. Adjustable by the LPF controller.)
The HPF controller works in this operation mode as subsonicfilter and eliminates the lower frequencies (Bandpass-Mode).
NOTE: If this controller is turned to a higher value than the LPF controller, no sound is hearable.
Position HPF:
Highpass mode (the higher frequencies will be eliminate. Adjustable by the HPF controller.)
Position FULL:
Fullrange mode (the whole frequencies will be amplified).
The
BASS LEVEL CONTROLLER port
is for the cable of the enclosed bass remote controller and only to use in the MASTER
mode. With this bass remote controller, you are able to adjust the bass level e.g. out of the driver’s seat. Please use only the
enclosed bass remote controller and cable. The controller works only in LPF/BPF mode.
The Remote operates strictly as a level attenuator. At full clockwise rotation at maximum position the level will be the same as if
the Remote was not connected at all. Find at first the desired bass level without the Remote and use the Remote then as level
attenuator for the bass level.
You find also two LEDs (POWER/PROTECT) on the Remote Controller. Check #9 for more information.
