TROCAR IDIOMA PT
9851 NW 58th St. – Unit 123
Doral – FL – 33178 – USA
Av. Corifeu de Azevedo Marques, 1703
São Paulo – SP – 05581-001 – Brazil
4 x 50W HIGH EFFICIENCY DIGITAL AMPLIFIER
The Absolute Acoustics® MDA-450 is a 4-channel digital amplifier that delivers 50W of continuous power @ 8Ohms or even more when used at lower impedance ratios or bridge mode. Its heart is powered by high quality digital amplification modules, valuing sound quality and unmatched robustness.
With enough flexibility to meet the demands of custom installations of all types, MDA-450 is the perfect complement to the Absolute speaker line. Each channel provides 50W RMS of continuous power into 8 Ohms, or 70W RMS into 4 Ohms, more than enough to feed high quality whole-house audio systems. This amplifier also works in bridge mode, where the outputs of two adjacent channels are combined to provide up to 120W RMS. All this power is safeguarded by individual protection circuits for overload, short circuit and overheat, protecting the amplifier and speakers from any adversities.
For ease of installation, the audio source for each channel can be selected either from a global input or direct channel input. The unit can be controlled directly through the main power switch on its front panel, through a trigger input located on the rear panel or automatically, sensing the audio signal.
Each channel provides 50W RMS of continuous power into 8 ohms, or 70W RMS into 4 Ohms, more than enough to feed high quality whole-house audio systems.
The MDA-450 uses Class-D amplification modules, operating coolly and with an efficiency of superior to 90%. They are also compact and lightweight.
Ultra-low distortion amplifying circuits provide clean and precise audio, even at high listening volumes.
In Bridge mode, the output from adjacent channels can be combined to deliver even more power, up to 120W RMS.
“Loop” outputs allows the transmission of the input signal to the next amplifier, making easier the integration between multiple units.
All this technology is embedded in a compact 1U chassis, which makes the installation easier in furniture or professional racks.
1. Main power switch
2. Power status indicator
3. Channel protection indicators
4. Gain adjustment knobs
5.12V DC trigger output
6. 3-24V DC trigger input
7. Power on mode selector switch
8. Channel audio in/out connectors
9. Bridge mode selector switch
10. Channel speaker outputs
11. AC power inlet
* Bridge mode is only available at 8 Ohms impedance.
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