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Unique Features of the M 5.4DSP
Class GD technology
Audiotec Fischer´s proprietary Class GD concept
takes the efficiency of conventional Class D amps
to the next level. By varying the internal supply volt-
age in several steps depending on the amplifier’s
input signals, idle losses are significantly reduced
and overall efficiency is close to maximum at any
time. So heat dissipation is almost negligible, thus
allowing smallest heat sinks and most compact
form factors.
ACO – Advanced 32 Bit CoProcessor
The MATCH M 5.4DSP amplifier incorporates an
extraordinary powerful 32 Bit CoProcessor of the
latest generation for all monitoring and communi-
cation tasks, both internally and externally. In oppo-
site to the 8 Bit predecessor generation this MCU
achieves way higher speeds with respect to setup
switching and data communication with our DSP
PC-Tool software. A further significant advantage
is the integrated, native boot loader of the CoPro-
cessor. It allows software upgrades of all compo-
nents of the DSP in order to adjust the microcontrol-
ler-controlled ADEP.3 circuit for example at future
modifications / changes in the diagnostic system of
factory radios or if the device will be extended with
additional interfaces. In addition, thanks to the new
flash memory, the ACO offers 10 memory locations
for sound setups instead of the common two.
Start-Stop capability
The switched power supply of the MATCH
M 5.4DSP assures a constant internal supply volt-
age even if the battery’s voltage drops to 6 Volts
during engine crank.
Two power options
The M 5.4DSP has two power modes – the
“HighPower” mode for maximum performance and
“MidPower” mode with reduced output power and
lower power consumption for Plug & Play applica-
tions.
Smart highlevel input ADEP.3
Modern, factory-installed car radios incorporate so-
phisticated possibilities of diagnosing the connect-
ed speakers. In particular the latest generation of
car radios is equipped with additional monitoring
functions so that failure messages and loss of spe-
cific features (e.g. fader function) quite often appear
if a common amplifier will be hooked up – but not
with the M 5.4DSP.
The new ADEP.3 circuit (Advanced Diagnostics
Error Protection, 3rd Generation) avoids all these
problems without loading the speaker outputs of the
OE radio during high volumes unnecessarily.
