Rane MA 3 Amplifier

Rane MA 3 Three Channel Power Amplifier - 40W per Channel into 8 Ohms

Rane MA 3 Three Channel Power Amplifier - 40W per Channel into 8 Ohms

B&H # RAMA3 MFR # MA 3
Rane MA 3 Amplifier

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  • 1Description

The Rane MA 3 is a three-channel amplifier designed to operate in commercial environments, such as paging, foreground music and background music distribution. Up to three optional 40 watt, 70.7 volt or 100 volt constant-voltage audio transformers may be installed inside the amplifier, eliminating the need for external wiring or transformer mounting.

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 in the MA 3 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.

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 20dB of overdrive into 8 and 4 ohm loads while holding THD below 1 percent. This means no loss of speech intelligibility or harsh clipping, and greatly increases the dynamic range of the system without the use of external limiters.

The peak-responding, load-adaptive meters of the MA 3 accurately indicate the remaining headroom. The meters are helpful in setting system levels and indicating signal compression. Internally selectable 80Hz high-pass filters offer protection against over excursion of small bookshelf speakers and saturation of distribution transformers at low frequencies.

Three independent amplifiers in a single enclosure
Load sensitive dynamic limiters and headroom meters
High capacity linear power supply
Separate input level controls on the back panel allow convenient level balancing of all channels
Sealed heat-tunnel forced air cooling
80Hz high-pass filter selection
SPiKe Protection Circuitry
Safeguards each channel against over-voltage, under-voltage, overloads, transients from inductive loads, thermal runaway and instantaneous temperature peaks
UPC: 687499100574
In the Box
Rane MA 3 Three Channel Power Amplifier - 40W per Channel into 8 Ohms
  • AC Power Cord
  • Two Year Warranty
  • Table of Contents
    • 1Description
    Power Rating Each channel delivers 60 watts of continuous average power into 4 ohms, and 40 watts into 8 ohms (all channels driven)
    Damping Factor 80 (minimum) into 8 ohms @ 1kHz
    Input Sensitivity Off to 0dBu
    Input Impedance 20k ohm each leg
    Gain 27dB
    Frequency Response 20Hz to 20kHz
    Signal-to-Noise Ratio 90dBr, A weighted
    Total Harmonic Distortion (THD) 0.05% - 1kHz, 40W, 8 ohms
    Input Connections 3 x Euroblock
    Output Connectors 3 x Euroblock
    Controls Front Panel Power switch
    Controls (Rear) 3 x Rotary level control
    Fan speed switch
    Indicators 1 x 4 LED level metering per channel
    Cooling Two speed fan, sealed tunnel
    Power Consumption 33.6W @ idle
    Dimensions 19" x 9" x 3 1/2"
    Weight 30 lbs
    Specialties Three independent amplifier channels to suit a wide range of applications
    Packaging Info
    Package Weight 23.0 lb
    Box Dimensions (LxWxH) 23.0 x 16.0 x 11.0"

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