Alfatron Electronics has introduced the MA15075D Compact Digital Mixing Amplifier, targeting commercial installed sound environments in low or high impedance applications in a compact 1U-high form factor.
The unit is a class-D amplifier with a mode selector switch that enables it to deliver either two channels of audio at 75W/channel into 4Ω or 8 Ω loudspeakers, or a single channel of 150W at 70V or 100V for use with distributed systems. It provides a balanced line level output that enables the mixed audio to be sent to an additional amplifier or other audio system, such as in an adjacent room.
In addition to two Dante audio inputs and one optical audio input, the unit carries a stereo balanced analogue input and two balanced microphone inputs on Euroblock connectors. It provides two balanced line level outputs, a stereo Low Impedance amp output, and one 70V/100V amplifier output.
The audio sampling rate is 48kHz at 24-bits, and there are two rear panel input level controls for setting the input gain of the two microphones inputs. The amplifier also offers automatic standby after a period of inactivity to minimise power consumption as well as low inrush current to prevent audible ‘thumps’ when multiple amplifiers are powered up simultaneously. The MA15075D also incorporates integrated DSP five-band graphic equalisation.
For intuitive control and operation, there is a GUI web server with TCP/IP control for remote control or third-party integration. A rear panel trigger port provides external mute/ unmute capability. To further ensure easy operation, the MA15075D’s front panel includes signal status LEDs for power, a panel button lock, audio source indicators, a mute switch, and real-time level meters.
‘The MA15075D ushers in a new era for our amplification range,’ says Alfatron Electronics National Sales Director, Kevin Gelman.’It is feature rich, compact, and provides versatility and easy integration with a variety of input options, including Dante audio networking. Furthermore, the built-in GUI webserver allows for easy configuration and control without the need to use additional software. We are confident that the MA15075D, paired with our Alfatron speaker range, will fit our clients’ solution requirements and provide exceptional sound quality for the user, whether it be for background music, conferencing or other similar applications.’
