CLOUD MIXER AMPLIFIERS - Mini amplifiers - MA40 Series
The MA40 series mini amplifiers have been designed for AV systems where de-centralised positioning is required. The compact designs can be installed into a wall or ceiling, or positioned near the input or output media device.
This mono amplifier has two unbalanced stereo line inputs and one electronically-balanced microphone input. When using an external 24V mains power supply, the amplifier has a 40 watt output capability. It can also be powered via a 12-24V DC power supply however the maximum output is reduced when the input voltage supplied falls below 18V. All inputs and outputs use detachable, screw terminal connectors.
The stereo line inputs are summed into a single mono signal and mixed with the balanced microphone input. Input channel 'Line one' can be set to have priority over the 'line two' input using switches on the rear. Each input has an independent input sensitivity control on the rear; the line inputs having a -10dB to +10dB range and the microphone input having a +10dB to +50dB range. The front panel of the amplifier has independent level controls for the microphone and line input channels and low and high-frequency equalisers, each -10dB to +10dB, that affects the line input channels only.
Optional and compatible wall plates include RSL-4W, RSL-4B, RL-1W, RL-1B which can be connected via plug-in screw type terminal connectors.
Dimensions (WxHxD): 220 x 41 x 144.5mm. Weight: 750g.
The MA40F shares the technical attributes of the MA40 with additional connectivity including an RJ45 facility port for connecting to remote modules such as LM-2B or LM-2W remote control plates. All inputs and outputs use detachable, screw terminal connectors.
Alternative connections for connecting an external 70V or 100V-line source are particularly useful if using the MA40F amplifier to carry emergency announcements from the main audio system of a building.
Optional and compatible wall plates include RSL-4W, RSL-4B, RL-1W, RL-1B which can be connected via plug-in screw type terminal connectors, and the LM-2W and LM-2B which are connected via the RJ45 facility-port. The PM1 paging microphone with single press-to-talk button can be connected to the microphone input and switches on the rear can be configured to enable microphone-over-music priority or paging control. Phantom power of +12V can be configured by way of internal jumpers.
An external 24V mains power supply is supplied with the amplifier, however an external DC supply of between 12 and 24V can be substituted. The maximum output power of 40W is reduced with DC supply voltages that fall below an 18V threshold.
Dimensions x: 220 x 41 x 144.5 (WxHxD) mm. Weight: 750g.
The MA40T mini amplifier has all the technical attributes of the MA40F except that instead of a 40W output into a 4 ohm load, the MA40T is a 40W amplifier with a transformer enabling it to drive 25/75/100V line speakers.
Dimensions: 303 x 41 x 144.5 (WxHxD) mm. Weight: 1.65kg.
Capable of producing 2x 20W into a low impedance, 4 ohm load, this stereo amplifier has two stereo line inputs and both Ethernet and RS232 connections. Like the MA40F and MA40T the MA40E has a facility port input option that allows connectivity to the Cloud LM-2 [93-149 / 93-188] wall input module or the Cloud BT-1F Bluetooth input module.
Dimensions: 220 x 41 x 144.5 (WxHxD)mm. Weight: 750g.