AUDAC SMA Series, User Manual, Page: 5 / 32

SMA&SMQ - User manual 05
Protection
Optimal protection is not only required for the listeners satisfaction, but can also be important for complying
to the imposed regulations and guaranteeing the lifetime of the equipment. Because of this, protection pre-
cautions are implemented in different ways.
Firstly, user access is made possible on different levels. The device can be blocked or accessed in user or
administrator level. Different levels allow different configuration and control functions, giving limited (Eg: only
volume) control access to standard users and full configuration control to administrators. User restriction
can be enabled & disabled and is given through password and / or USB-key.
Secondly, equipment protection is implemented by an output limiter which monitors the output power of
every channel and will intervene when the output exceeds a certain level. The corresponding level can be
software configured and is indicated in Watts. When the output limiter is configured at the maximum power
of the loudspeaker, you can rest assured that the speakers won’t be blown during your absence.
Lastly, the maximum volume for every channel can be set independently. This prevents users (having volu-
me access) going over the limit. This can help you to keep the system compliant with imposed regulations
and maintain a good relationship with the neighbors.
Efficiency
The switching mode power supply and Class D Amplifier technology in combination with the configurable
auto-standby mode for each separate amplifier channel brings an end to the era of the power-hungry am-
plifiers. In addition, these features also result in a lightweight amplifier which benefits the customer when
used in mobile applications.
7-Band
EQ
Input Matrix
Time
Alignment Lockable
Speaker
Protection
Dynamic
Bass
Speaker
Presets
Energy
Efficiency Limiter
Digital
Audio Filters
7-Band
EQ
Input Matrix
Time
Alignment Lockable
Speaker
Protection
Dynamic
Bass
Speaker
Presets
Energy
Efficiency Limiter
Digital
Audio Filters
7-Band
EQ
Input Matrix
Time
Alignment Lockable
Speaker
Protection
Dynamic
Bass
Speaker
Presets
Energy
Efficiency Limiter
Digital
Audio Filters
7-Band
EQ
Input Matrix
Time
Alignment Lockable
Speaker
Protection
Dynamic
Bass
Speaker
Presets
Energy
Efficiency Limiter
Digital
Audio Filters
Input 1
Input 2
Input 3
Input 4
OFF
ANALOGUE
GAIN
INPUT SELECT
Level
AMP
TEMP
CPU
DSP
VU READ
RS232
Front
USB
ADC
ADC
ADC
ADC
ADC
ADC
FUNCTION
Prot
Clip
-20dB
Sig
CH1 CH2
POWER ON
SMA750
AUDAC
7 Band
EQ
Time
Alignment
Speaker
Protection
Speaker
Presets
Dynamic
Bass Limiter
Digital
Audio Filters
CHANNEL 1
CHANNEL 2
CHANNEL 3
CHANNEL 4
DAC