Rane Corp.
The MA 3 is a three-channel amplifier was specifically designed for use with: Paging, Foreground Music, and Background Music Distribution.
The MA 3 is a three-channel amplifier designed to operate reliably in commercial environments. The MA 3 was specifically designed for use with: Paging, Foreground Music, and Background Music Distribution. This includes Rane's paging, foreground music, and background music products, the Rane CP 52, CP 64 and DA 26. The MA 3 uses a conventional linear power supply with toroidal transformer. This configuration minimizes the emissions associated with switching supplies and noisier transformer designs. The power supply features independent secondary supplies for each channel, minimizing load regulation interaction and crosstalk. Thermal management is accomplished with a sealed heat- tunnel design incorporating low velocity forced air and large aperture openings. This design minimizes the noise usually associated with forced air cooling and eliminates the need for an air filter. Forced air cooling allows the amplifier to operate reliably in harsh environments and avoid the buildup of heat in unventilated racks associated with passive convection cooling. The combination of a solid, conservative power supply and forced-air cooling allows the MA 3 to simultaneously deliver 40 watts of continuous average power into 8 ohms and 60 watts into 4 ohms.SPiKe®* dynamic protection circuitry completely safeguards each channel against over-voltage, under-voltage, overloads, transients from inductive loads, thermal runaway and instantaneous temperature peaks. Biasing is not allowed to occur when an under-voltage condition exists, reducing turn on and turn off transients. Fast-response limiters allow the MA 3 to tolerate up to 20 dB of overdrive into 8 and 4 ohm loads while holding THD below 1%. This means no loss of speech intelligibility or harsh clipping. This feature greatly increases the dynamic range of the system without external limiters. Peak-responding, load-adaptive meters accurately indicate the remaining headroom. The meters are helpful in setting system levels and indicating signal compression. Balanced inputs with Euroblock connectors are provided. Euroblock output connectors accept up to 12 gauge wire. Rear panel Level controls allow amplifier sensitivity adjustment. Internally selectable 80 Hz highpass filters offer protection against over excursion of small bookshelf speakers and saturation of distribution transformers at low frequencies.
Specially designed for use in paging, foreground music and background music distribution
3 independent channels deliver 40 watts RMS into 8 ohms and 60 watts into 4 ohms
Load sensitive dynamic limiters and headroom meters
Rear panel input level controls
SPiKe® protection circuitry
Sealed heat-tunnel forced air cooling
Optional internal 70.7V or 100V transformers
Euroblock inputs and speaker outputs
Uses a conventional linear power supply with toroidal transformer
Sealed heat-tunnel design incorporating low velocity forced air and large aperture openings
Internally selectable 80Hz highpass filters
Rane Corp.
The MA 3 is a three-channel amplifier was specifically designed for use with: Paging, Foreground Music, and Background Music Distribution.
The MA 3 is a three-channel amplifier designed to operate reliably in commercial environments. The MA 3 was specifically designed for use with: Paging, Foreground Music, and Background Music Distribution. This includes Rane's paging, foreground music, and background music products, the Rane CP 52, CP 64 and DA 26. The MA 3 uses a conventional linear power supply with toroidal transformer. This configuration minimizes the emissions associated with switching supplies and noisier transformer designs. The power supply features independent secondary supplies for each channel, minimizing load regulation interaction and crosstalk. Thermal management is accomplished with a sealed heat- tunnel design incorporating low velocity forced air and large aperture openings. This design minimizes the noise usually associated with forced air cooling and eliminates the need for an air filter. Forced air cooling allows the amplifier to operate reliably in harsh environments and avoid the buildup of heat in unventilated racks associated with passive convection cooling. The combination of a solid, conservative power supply and forced-air cooling allows the MA 3 to simultaneously deliver 40 watts of continuous average power into 8 ohms and 60 watts into 4 ohms.SPiKe®* dynamic protection circuitry completely safeguards each channel against over-voltage, under-voltage, overloads, transients from inductive loads, thermal runaway and instantaneous temperature peaks. Biasing is not allowed to occur when an under-voltage condition exists, reducing turn on and turn off transients. Fast-response limiters allow the MA 3 to tolerate up to 20 dB of overdrive into 8 and 4 ohm loads while holding THD below 1%. This means no loss of speech intelligibility or harsh clipping. This feature greatly increases the dynamic range of the system without external limiters. Peak-responding, load-adaptive meters accurately indicate the remaining headroom. The meters are helpful in setting system levels and indicating signal compression. Balanced inputs with Euroblock connectors are provided. Euroblock output connectors accept up to 12 gauge wire. Rear panel Level controls allow amplifier sensitivity adjustment. Internally selectable 80 Hz highpass filters offer protection against over excursion of small bookshelf speakers and saturation of distribution transformers at low frequencies.
- Specially designed for use in paging, foreground music and background music distribution
- 3 independent channels deliver 40 watts RMS into 8 ohms and 60 watts into 4 ohms
- Load sensitive dynamic limiters and headroom meters
- Rear panel input level controls
- SPiKe® protection circuitry
- Sealed heat-tunnel forced air cooling
- Optional internal 70.7V or 100V transformers
- Euroblock inputs and speaker outputs
- Uses a conventional linear power supply with toroidal transformer
- Sealed heat-tunnel design incorporating low velocity forced air and large aperture openings
- Internally selectable 80Hz highpass filters
