AUDAC SCP206 Compact Dual Channel Power Amplifier User Manual
- June 14, 2024
- AUDAC
Table of Contents
User manual
SCP2xx
audac.eu
ADDITIONAL INFORMATION
This manual is put together with much care, and is as complete as could be on the publication date. However, updates on the specifications, functionality or software may have occurred since publication. To obtain the latest version of both manual and software, please visit the Audac website @ audac.eu.
Introduction
Compact dual-channel power amplifier
The SCP series is a range of extremely powerful compact dual-channel power
amplifiers for commercial use.
These half 19” devices can be used in stereo low impedance or 70/100V bridge
mode. There are several different models to serve a wide range of applications
with power ratings that vary between 120W to 600W in a half 19” rack space
housing.
The compact and elegant design of the half 19” rack space enclosure allows for
single installation in a 10.5” equipment rack, or side-by-side (two devices)
in a 19” equipment rack.
A connection to the WP2xx series input wall panels or volume controllers can
be made via the RJ45 connectors on the back of the SCP.
Equipped with a standby mode switch, the SCP series will enter an energy-
saving standby mode after a period of inactivity. This feature together with
the overall energy-efficient design makes the SCP meet the high standards of
the Energy Star certification.
When you combine the SCP series with a suitable pre-amplifier or wall-mounted
input panel you create a powerful and complete solutions for background music
installations.
Precautions
READ FOLLOWING INSTRUCTIONS FOR YOUR OWN SAFETY
ALWAYS KEEP THESE INSTRUCTIONS. NEVER THROW THEM AWAY
ALWAYS HANDLE THIS UNIT WITH CARE
HEED ALL WARNINGS
FOLLOW ALL INSTRUCTIONS
NEVER EXPOSE THIS EQUIPMENT TO RAIN, MOISTURE, ANY DRIPPING OR SPLASHING
LIQUID. AND NEVER PLACE AN OBJECT FILLED WITH LIQUID ON TOP OF THIS DEVICE.
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 STICK ANY OBJECTS THROUGH THE VENTILATION OPENINGS.
DO NOT INSTALL THIS UNIT NEAR ANY HEAT SOURCES SUCH AS RADIATORS OR OTHER
APPARATUS THAT PRODUCE HEAT DO NOT PLACE THIS UNIT IN ENVIRONMENTS WHICH
CONTAIN HIGH LEVELS OF DUST, HEAT, MOISTURE OR VIBRATION THIS UNIT IS
DEVELOPED FOR INDOOR USE ONLY. DO NOT USE IT OUTDOORS PLACE THE UNIT ON A
STABLE BASE OR MOUNT IT IN A STABLE RACK
ONLY USE ATTACHMENTS & ACCESSORIES SPECIFIED BY THE MANUFACTURER UNPLUG THIS
APPARATUS DURING LIGHTNING STORMS OR WHEN UNUSED FOR LONG PERIODS OF TIME
ONLY CONNECT THIS UNIT TO A MAINS SOCKET OUTLET WITH PROTECTIVE EARTHING
CONNECTION
THE MAINS PLUG OR APPLIANCE COUPLER IS USED AS THE DISCONNECT DEVICE, SO THE
DISCONNECT DEVICE SHALL BE READILY OPERABLE
USE THE APPARATUS ONLY IN MODERATE CLIMATES
THIS DEVICE CAN BE SOLD IN ALL EU REGIONS
CAUTION
The symbols shown are internationally recognized symbols that warn about
potential hazards of electrical products. The lightning flash with arrow point
in an equilateral triangle means that the unit contains dangerous voltages.
The exclamation point in an equilateral triangle indicates that it is
necessary for the user to refer to the users manual. ****These symbols warn
that there are no user serviceable parts inside the unit. Do not open the
unit. Do not attempt to service the unit yourself. Refer all servicing to
qualified personnel. Opening the chassis for any reason will void the
manufacturer’s warranty. Do not get the unit wet. If liquid is spilled on the
unit, shut it off immediately and take it to a dealer for service.
Disconnect the unit during storms to prevent damage.
CAUTION – SERVICING
This product contains no user serviceable parts. Refer all servicing to
qualified service personnel. Do not perform any servicing (unless you are
qualified to)
EC DECLARATION OF CONFORMITY
This product conforms to all the essential requirements and further relevant
specifications described in following directives: 2014/30/EU (EMC) and
2014/35/EU (LVD). All related standards are listed in a Declaration of
Conformity (DoC), which can be found in the products download section on the
webpage audac.eu, our through scanning the QR code on page
2 of this user manual.
WASTE ELECTRICAL AND ELECTRONIC EQUIPMENT (WEEE)
The WEEE marking indicates that this product should not be disposed with
regular household waste at the end of its life cycle. This regulation is
created to prevent any possible harm to the environment or human health.
This product is developed and manufactured with high quality materials and
components which can be recycled and/or reused. Please dispose this product at
your local collection point or recycling centre for electrical and electronic
waste. This will make sure that it will be recycled in an environmentally
friendly manner, and will help to protect the environment in which we all
live.
POWER SUPPLY AND POWER CORD REQUIREMENTS
Power supply class I grounding requirements:
For protection from fault currents, the equipment shall be connected to a
grounding terminal. Plug the system power cord into an AC outlet that provides
a ground connection. Substitute cords may not provide adequate fault
protection. Only use the power cord supplied with this product or an
authorized/equivalent replacement
SAFETY NOTICES:
DENMARK: Apparatets stikprop skal tilsluttes en stikkontakt med jord, som
giver forbindelse til stikproppens jord.
FINLAND: Laite on liitettävä suojakoskettimilla varustettuun
pistorasiaan.
NORWAY: Apparatet må tilkoples jordet stikkontakt.
SWEDEN: Apparaten skall anslutas till jordat uttag.
Chapter 1 Connections and connectors
CONNECTION STANDARDS
The in- and output connections for AUDAC audio equipment are performed
according to international wiring standards for professional audio equipment
3-Pin Terminal block:
For balanced line input connections
| Left: | Signal – | (XLR Pin 3) |
|---|---|---|
| Center: | Signal + | (XLR Pin 2) |
| Right: | Ground | (XLR Pin 1) |
For balanced signal input connections
For unbalanced signal input
connections
RJ45 (audio):
Remote input units
| Pin 1 | White-Orange | Left channel + |
|---|---|---|
| Pin 2 | Orange | Left channel – |
| Pin 3 | White-Green | +24V DC |
| Pin 4 | Blue | Not connected |
| Pin 5 | White-Blue | Not connected |
| Pin 6 | Green | GND |
| Pin 7 | White-Brown | Right channel + |
| Pin 8 | Brown | Right channel – |
RJ45 (control):
Remote volume controller
| Pin 1 | White-Orange | Not connected |
|---|---|---|
| Pin 2 | Orange | Not connected |
| Pin 3 | White-Green | GND |
| Pin 4 | Blue | Variable control voltage (0 ~ 10V) |
| Pin 5 | White-Blue | +10V |
| Pin 6 | Green | +10V |
| Pin 7 | White-Brown | Not connected |
| Pin 8 | Brown | Not connected |
Chapter 2 Front panel overview
Indicator LEDs (VU):
Channel monitoring is made convenient by four indicator LEDs for each channel.
The LEDs give a continuous indication of the operation of the corresponding
channel. The green signal LED illuminates whenever a signal is present, while
the -20dB LED illuminates when the input signal exceeds the -20 dB level. The
Clip LED illuminates when the corresponding channel is working at the maximum
level. To ensure the best signal-to-noise ratio, the Clip LED should
illuminate only (or maximum) at peak levels.
When the Clip LED illuminates, the output limiter of the amplifier will
intervene avoiding a distorted “Clipping” sound on the output. The Protection
LED will illuminate when overheating occurs, or any other fault is detected.
When the protection LED is illuminated, no signal will be available on the
outputs. The Protection LED will also illuminate when the external mute
contacts are activated.
Power switch:
A power switch is used to switch the amplifier on and off. The LED ring around
the switch illuminates in blue colour when the power is switched on or will
illuminate in orange color when switched to standby mode.
Rear panel overview
AC
Power inlet with fuse:
The mains power supply (100-240V AC – 50/60 Hz) has to be applied to this AC
power inlet.
Mute connection:
A priority mute contact connection is present which allows complete muting of
background music in the presence of a contact closure between both ‘MUTE’
contacts.
This contact is convenient for situations where a separate emergency system is
installed and complete background music muting is required. For example, on
the occasion of a fire alarm. The emergency system output contacts can be
linked to this contact input. When a N.C. contact trigger is being used, a
contact bridge shall be used between both N.O. contact terminals. 
Audio output connection:
The speakers shall be connected to the terminal block output connector.
Depending on the setup, two speakers can be connected in low impedance stereo
setup, or one speaker line can be connected in a constant voltage 70/100V
bridge configuration. Typical wiring applications are shown in the following
diagrams.
SCP series minimum load impedance in 4
Ohm stereo output mode
| Output voltage| Impedance| Power
---|---|---|---
SCP206| 15.5 Volt| 4 Ohm| 2 x 60 Watt
SCP212| 22 Volt| 4 Ohm| 2 x 120 Watt
SCP224| 31 Volt| 4 Ohm| 2 x 240 Watt
SCP230| 35 Volt| 4 Ohm| 2 x 300 Watt
SCP series minimum load impedance in 70 Volt bridge mode
| Output voltage| Impedance| Power
---|---|---|---
SCP206| 3 Volt| 41.67 Ohm| 120 Watt
SCP212| 70 Volt| 20.83 Ohm| 240 Watt
SCP224| 70 Volt| 10.41 Ohm| 480 Watt
SCP230| 70 Volt| -.33 Oh-| 600 Watt
SCP series minimum load impedance in 100 Volt bridge mode
| Output voltage| Impedance| Power
---|---|---|---
SCP206| 100 Volt| 83.33 Ohm| 120 Watt
SCP212| 100 Volt| :1.67 Ohm| 240 Watt
SCP224| 100 Volt| 20.83 Ohm| 480 Watt
SCP230| olt| 16.67 Ohm| 600 Watt
Remote audio input:
A remote audio wall panel (e.g. WP2xx) can be connected to the bottom ‘Remote
audio’ RJ45 connector for providing a remote audio input. The connection of
this extension port can be made by using CAT5e (or better) twisted pair cable
in a straight pinout configuration.
Pinout and colour coding are described in Chapter 1 of this instruction
manual. The remote audio input provides stereo balanced line input with an
input sensitivity of +12dBV and a +24V output for powering external audio
panels. The audio signal from the remote audio input is mixed with the
amplifier’s line inputs.
Remote volume control:
The top ‘Vol Ctrl’ RJ45 connector allows for an external control of the
main volume of the SCP amplifier. The connection of this extension port can be
made by using CAT5e (or better) twisted pair cable in a straight pinout
configuration. Pinout and colour coding are described in Chapter 1 of this
instruction manual.
The remote volume controller connection is designed for use with a suitable
volume controller (e.g. Audac WP200, VC3208). It is a VCA input, working
between 0-10V (linear envelope), and can be used with an external 0-10V
control system. The amplifiers overall volume is controlled dependent on the
applied control voltage. A control voltage of 10V means no attenuation, while
0V mutes the amplifier. When no external controller is connected, the volume
is at maximum.
Standby switch:
The Standby mode of the SCP can be turned on or off. When enabled, the SCP
will automatically go into standby mode after 30 minutes of inactivity (no
signal detection).
Stereo- (Lo-Z) / bridge- (Hi-Z) mode switch:
Provides the possibility to switch the amplifier between Lo-Z and Hi-Z modes.
If this switch is set to Lo-Z stereo, the output will be stereo can capable of
driving low impedance speakers. If it is set to Hi-Z BTL/HPF, both output
channels are bridged and capable of driving high impedance/constant voltage
speaker systems.The output voltage can be switched between 70/100V through
using a corresponding switch, depending on the requirements of the
installation. An HPF (70 Hz) will be enabled when switched to Hi-Z.
70V / 100V switch:
When switched in Hi-Z mode (STEREO – BTL-HPF) the output voltage can be
switched between 70/100V using this switch.
Balanced stereo line input:
The balanced stereo line inputs use 3-pins terminal block connectors. All
different kinds of balanced and unbalanced line level audio sources can be
connected to the line inputs. Some examples are pre-amplifiers, mixers and
spoken messages through an audio source. It is fitted with a gain control
potentiometer by which the input sensitivity can be controlled within a range
of -3 dBV ~ +7 dBV.
Technical specifications
| SCP206| SCP212| SCP224| SCP230
---|---|---|---|---
RMS/AES power handling| @ 4 Ohm stereo| 2 x 60 Watt| 2 x 120 Watt| 2 x 240
Watt| 2 x 300 Watt
@ 8 Ohm stereo| 2 x 30 Watt| 2 x 60 Watt| 2 x 120 Watt| 2 x 150 Watt
@ 70/100V bridge| 120 Watt| 240 Watt| 480 Watt| 600 Watt
Frequency response| 20 Hz – 20 kHz
Signal / Noise| > 95 dB
THD+N| < 0.05%
Amplifier technology| Class D
Cooling| Convection cooled| Fan cooled (controlled)
Inputs| Balanced line| 2 x Balanced line input
3-pin terminal block ~ 3.81mm
Remote audio input| RJ45
Remote volume controller| RJ45
Priority mute contact| NO or NC
Outputs| Low Z & 70/100V speaker output 4-pin terminal block ~ 5.08 mm
Controls| Gain control (potentiometer)
Stereo low Z & mono high switch
70/100V switch
Standby ON/OFF
Power supply| 100 ~ 240 V AC / 50 ~ 60 Hz
Power consumption| Standby| 0.5 W| 0.5W| 0.5W| 0.5W
Idle| 19W| 19W| 19W| 19W
1/8 rated power| 42W| 60W| 100W| 115W
1/3 rated power| 75W| 123W| 220W| 262W
Ambient temperature range (in operation)| 0°C ~ +40°C
Relative humidity range| < 80 %, not condensing
Dimensions (W x H xD)| 217.5 x 43.7 x 300 mm
Weight| 2.70 Kg
Mounting| 1/2 19” / 1 HE or tabletop
Construction| Steel
Color| Black
Optional accessories| WP2xx remote wall panel inputs
WP200 Remote volume controller
VC3208 Remote volume controller
MBS310 rackmount adapter
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