PROFESSIONAL POWER AMPLIFIER
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10).Fan for the SUB amplifier section.
A free airflow should always be guaranteed.
The fan turns at 50% when a temperature
of 50°C is reached. As soon as this
temperature exceeds 70°C, the fan will
turn at full speed.
11).Fan for the Left / Right amplifier section.
A free airflow should always be guaranteed.
The fan turns at 50% when a temperature
of 50°C is reached. As soon as this
temperature exceeds 70°C, the fan will turn at full speed.
12).Fuse: the fuse shall, if needed, only be replaced by qualified personnel only.
The fuse shall only be replaced by the same type: 15 ampere slow blow fuse.
CAUTION: BE AWARE OF HIGH VOLTAGES!
13).AC POWER CORD: Always operate the unit with the AC ground wire connected to the
electrical system ground. This device is suited for 220-240V use only.
14).AUDIO GROUND: When switched down, the inputs earth will be cut.
This may solve the HUM and BUZZ that occurs during installing the amplifier.
15).INPUT: The input signal connector is suited for balanced XLR connectors
as well as ¼” phone jacks (tip is hot).
The wiring can be found at the back panel of the amplifier.
Each input connector is internally wired in parallel with the male XLR connector.
This connectors can be used to link the input signal to other amplifiers or electronics.
16).X-OVER Frequency: These rotary controls allow the installer to adjust the High Pass Frequency
(HPF) of the Left and Right amplifier output. (The SUB channel frequency is a fixed factory
preset: 40-120 Hz). We recommend to use the 120Hz settings as a standard for 8" sized woofer
top cabinets or smaller. The filter slope is 12dB/oct.
17).PRE OUT: This RCA connector is an output line signal, after the X-Over processor.
18).AMP IN: Amplifier input after the X-Over processing BUT before volume control and the AP-Limiter®.
This function allows you to use the PUBDRIVE-2000 just as a 3 channel power amplifier.
19).Right loudspeaker output on a 4-pole speakon connector. ATTENTION: the output signal is available
in both -1/-2 and +1/+2. This allows you to connect two different speaker lines or a thicker cable
section can be created for longer distances between amplifier and loudspeakers.
The minimum loudspeaker load should be 2.77 Ohm, meaning max 3 speakers of 8 Ohm
(g.e. MASK8) in parallel, or max 6 speakers of 16 Ohm (g.e. MASK6T) in parallel.
20).SUB loudspeaker output on a 4-pole speakon connector. ATTENTION: the output signal is available
in both -1/-2 and +1/+2. This allows you to connect two different speaker lines or a thicker cable
section can be created for longer distances between amplifier and loudspeakers.
The minimum loudspeaker load should be 2 Ohm, meaning max 2 speakers of 4 Ohm
(g.e. SUB2400) in parallel, or max 4 speakers of 8 Ohm (g.e. SUB2200) in parallel.
! Each speaker should be wired individually to the amplifier to avoid cable loss. !
21).Left loudspeaker output on a 4-pole speakon connector. ATTENTION: the output signal is available
in both -1/-2 and +1/+2. This allows you to connect two different speaker lines or a thicker cable
section can be created for longer distances between amplifier and loudspeakers.
The minimum loudspeaker load should be 2.77 Ohm, meaning max 3 speakers of 8 Ohm
(g.e. MASK8) in parallel, or max 6 speakers of 16 Ohm (g.e. MASK6T) in parallel.
BACK PANEL
FRONT PANEL
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1).Power on/off button with “soft start”. The power button supplies power to the
system. Make sure all volume controls are turned down when turning
on the amplifier.
2).STATUS LED: This blue LED indicates that the amplifier is plugged in to
an AC outlet source and that the amplifier is turned on.
3).Volume control for SUB low frequencies.
4).Volume control left cabinets speakers.
5).Volume control right cabinets speakers.
6).SIGNAL: This signal LED indicates that an input signal is present.
7).LIMIT: This LIMIT LED indicates that the AP-Limiter® is in action.
This means that the “auto gain circuit” reduces the average leveltill it stays
about 3dB below clipping, but still allowing dynamics within the headroom
of the amplifier.
This is not a "traditional CLIP limiter", it's a "automatic gain control" that loves
dynamic music and saves your speakers.
The AP-Limiter® can be bypassed by qualified personnel only.
The LIMIT LED will keep flickering, even if the limiter has been bypassed.
NOTE:
Bypassing the AP-Limiter® will void the guarantee.
8).PROTECT: This indicator is lid when serious faults like short-circuit,
overload, temperature or other occur.
This means the amplifier outputs have been cut.
Please recheck your wiring and speakers impedance, or contact your dealer
for further assistance.
9).Ventilation: The amplifier has a back to front airflow.
A free airflow should under all circumstances be guaranteed!
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