AUDAC

Power Amplifier
Q2 - Q4
AUDAC
PROFESSIONAL AUDIO EQUIPMENT
Power Amplifier Q2 – Q4
User Manual &
Installation Guide
AUDAC PROFESSIONAL AUDIO EQUIPMENT
User Manual & Installation Guide
 AUDAC
http://www.audac.be
[email protected]
Index
INTRODUCTION ............................................................................................................................................................................................................................3
ENVIRONMENT .............................................................................................................................................................................................................................4
SAFETY REQUIREMENTS..........................................................................................................................................................................................................5
CAUTION – SERVICING ............................................................................................................................................................................................................5
OVERVIEW FRONT PANEL OF THE Q2 – Q4 ......................................................................................................................................................................6
1 POWER SWITCH AND INDICATOR ................................................................................................................................................................................................6
2 PROTECTION INDICATOR .............................................................................................................................................................................................................6
3 CLIP INDICATOR ...........................................................................................................................................................................................................................6
4 SIGNAL INDICATOR ......................................................................................................................................................................................................................6
5 INPUT ADJUSTER ..........................................................................................................................................................................................................................7
OVERVIEW REAR PANEL OF THE Q2 – Q4 .........................................................................................................................................................................7
1 INPUT CONNECTOR ......................................................................................................................................................................................................................7
2 OUTPUT CONNECTORS .................................................................................................................................................................................................................7
3 MODE SWITCH ..............................................................................................................................................................................................................................7
4 AC POWER CONNECTOR ..............................................................................................................................................................................................................7
5 GROUND-LIFT SWITCH ................................................................................................................................................................................................................7
OPERATING MODES....................................................................................................................................................................................................................8
STEREO ............................................................................................................................................................................................................................................8
BRIDGED..........................................................................................................................................................................................................................................8
APPLICATIONS..............................................................................................................................................................................................................................9
STEREO ............................................................................................................................................................................................................................................9
BRIDGED........................................................................................................................................................................................................................................10
GETTING STARTED ...................................................................................................................................................................................................................11
CONNECTING THE SPEAKERS..............................................................................................................................................................................................11
WIRE UP THE SYSTEM .............................................................................................................................................................................................................11
ADDITIONAL INFORMATION Q2 – Q4 ................................................................................................................................................................................12
TECHNICAL SPECIFICATIONS ........................................................................................................................................................................................................12
PERSONAL NOTES .....................................................................................................................................................................................................................13
2
Introduction
This section briefly describes the possibilities of the Q2 – Q4 power amplifier.
T
he Q2 – Q4 power amplifier is developed as an easy to use, flexible solution for multifunctional use.
During the development of the Q2 – Q4 power amplifier, the AUDAC-engineers wanted to
achieve three goals:
-
Easy to use
-
Excellent sound quality
-
Modern and advanced design
AUDAC’s Q-series professional power amplifiers are suitable for the most common low
impedance high power sound systems. The amplifiers are build as a 4 channel amplifier with the
possibility to bridge channels. The amplifiers are equipped with a multi purpose protection circuit
which detects DC malfunction, short circuit, overheating and signal overload.
The amplifiers are equipped with a balanced XLR per channel input and a speaker connector for
each channel output.
3
Chapter
1
Environment
Do not place this unit in an enclosed environment such as a bookshelf or closet. Ensure
there is adequate ventilation to cool the unit. Do not block the ventilation openings.
Do not place the unit in environments which contain high levels of dust, heat, moisture or
vibration.
Do not use the unit near water or other liquids. Make sure no water or other liquids can be
spilled, dripped or splashed on the unit.
Do not place objects on top of the unit.
Place the unit on a stable base.
4
Safety Requirements
Always handle the unit with care.
Only use a grounded socket outlet and a power cord with grounding plug.
This unit is not a toy. It should not be operated by children.
Do not stick objects through the openings of the Q2 – Q4.
Do not open the unit. (risk for electrical shock)
Always read the user manual before getting started.
CAUTION – SERVICING
This unit contains no user serviceable parts. Refer all servicing to qualified
service personnel. Do not perform any servicing unless you are qualified to do
so.
Note
This product conforms to the following European Standards: EN 50081-1: 1992, EN
50082-1: 1992, EN 60065: 1994
5
Chapter
2
Overview front panel of the Q2 – Q4
3
5
2
4
1
1 Power switch and indicator
Use the power switch to put the power of the Q2 – Q4 on or off. The led indicates if the
power is on or off.
2 Protection indicator
This led indicates when the protection circuit of the corresponding channel is activated. Their
will be no output on the corresponding channel when the protection circuit is activated. This
led will also be lighted during the start up of the amplifier. When problems with the amplifier
are corrected, the led goes out and normal operation can be continued.
3 Clip indicator
This led indicates that there is an excessively high input signal on the corresponding channel.
4 Signal indicator
This led indicates that there is a signal on the corresponding channel.
6
5 Input adjuster
This input adjuster will attenuate the input signal of the corresponding channel.
Overview rear panel of the Q2 – Q4
5
4
2
1
3
1 Input connector
Each channel is equipped with a balanced input connector (3-pin XLR). For these input
connectors the standard rules for wiring up are applied.
Pin1 = Ground
Pin2 = Hot (Signal +)
Pin3 = Cold (Signal -)
2 Output connectors
Each output channel is equipped with speaker type connectors. Be sure that the amplifier is in
the correct mode before connecting the speakers.
3 Mode switch
With this mode switch you can set the Q2 – Q4 into different modes: stereo or bridged.
4 AC Power connector
Plug in this power cord into the AC outlet.
5 Ground-Lift switch
With this switch you can detach the device from the ground to cancel out hum.
7
Operating modes
Stereo
In stereo mode the connections for the loud-speakers are as follows.
Output channel 1 and channel 3
Pin 1+ CH1 out (CH3 out)
Pin 1- GND
Pin 2+ CH2 out (CH4 out)
Pin 1- GND
Output channel 2 and channel 4
Pin 1+ CH2 out (CH4 out)
Pin 1- GND
Pin 2+ /
Pin 2- /
Bridged
In bridge mode the connections for the loud-speaker are as follows.
Output channel 1 and channel 3
Pin 1+ CH1 out (CH3 out)
Pin 2+ CH2 out (CH4 out)
Only channel 1 and channel 3 are supported for bridge mode.
Do not connect anything to channel 2 and channel 4 when set into bridge mode.
8
Applications
Stereo
MIXER
9
Bridged
MIXER
10
Chapter
3
Getting Started
The Q2 – Q4 power amplifier can be switched on by pressing the power button on the front
panel. The blue “ON” led will light up if the device is powered-up.
The volume of the input signals can be controlled by turning the volume knobs of the input
signals on the front panel of the Q2 – Q4. A VU-bar indicates the signal level of the output signal.
The output section on the rear panel of the Q2 – Q4 has one low impedance output per channel.
Connecting the speakers
A 4Ω speaker (or two 8Ω speakers in parallel) can be connected to the 4Ω low impedance output
at the rear.
Make sure the total combined load of the speakers does not exceed 300W @ 4Ω/channel for the
Q2 or 600W @ 4Ω/channel for the Q4 . This is the maximum power the Q2 – Q4 amplifier can
give per channel.
Wire up the System
The Q2 – Q4 amplifier is very easy in use. Following cable specs must be followed to guarantee a
correct operation:
1. Speaker cable for amplified zone output 4Ω : minimum 2x1.5 mm2 (distance >15m:
2x2.5mm2 or more).
2. Music sources and other line level inputs: must be connected with audio cable of good quality.
11
Chapter
4
Additional Information Q2 – Q4
Technical specifications
Input Impedance
Input Sense
Frequency Response
THD+N (1 kHz)
Signal to Noise ratio
Slew Rate
Cross Talk (1 kHz)
Damping Factor
20 kΩ balanced
0.775 V
20 Hz – 20 kHz
Less than 0.05% @ 8 Ω
>93 dB
40V/µsec
>70 dB @ 8 Ω
>400
RMS Power @ 8 Ω Q2
RMS Power @ 4 Ω Q2
RMS Power @ 8 Ω Bridged Q2
4 x 200 W
4 x 300 W
2 x 600 W
RMS Power @ 8 Ω Q4
RMS Power @ 4 Ω Q4
RMS Power @ 8 Ω Bridged Q4
4 x 400 W
4 x 600 W
2 x 1200 W
Protection
DC
Short Circuit
Overheating
Overload
Power Supply
230V AC, 50-60Hz
Weight Q2
Weight Q4
Dimensions (W x H x D)
Unit height
24.0 kg
28.0 kg
483 mm x 88mm x 385mm
2HE
12
Personal Notes
13