Martin Audio MA1.6s Specifications download pdf (Page 6)

5 INSTALLATION

5.1 Mounting

The amplifier is two rack units high (2U) and will mount in a standard EIA

19'' rack. Amplifiers may be stacked directly on top of each other. There is

no need for spacing between units. If it is the intention to fill a rack with

amplifiers, we recommend racking is started from the bottom of the rack. It

is also recommended that rear supports are used for amplifiers mounted in

the middle of the rack, especially if used as part of a portable system.

5.2 Cooling

Your amplifier uses forced air cooling to maintain a low and even operating

temperature. All MARTIN AUDIO MA Series amplifiers have front to rear

cooling. Never try to reverse the air flow, as the amplifier needs a pressure

chamber between the fans and heat sink and this only operates in one

direction of the air flow (see Design features on page 17).

Should the heat sink get too hot, its sensing circuit will mute the hot

channel. If the power supply overheats, another sensing circuit will mute all

output channels until it cools down to a safe operating temperature.

Make sure that there is an adequate air supply in front of the amplifier and

that the rear of the amplifier has sufficient space to allow the exhaust to

escape. If the amplifier is rack mounted, do not use covers or doors on the

front or rear of the rack.

For fixed installations with a central cooling system, usually found in fixed

installations with a dedicated rack room, it may be necessary to calculate

the maximum heat emission. Refer to Power consumption on page 8.

5.3 Operating voltage

WARNING!

A label below the mains cable on the rear of the amplifier indicates the

selected AC mains operating voltage.

Connect the power cable only to the AC source referred to on the

label. The warranty will not cover damage caused by connecting to

the wrong type of AC mains.

For converting a 230 volt amplifier to 115 volt or vice-versa, see Appendix A.

MARTIN AUDIO switch mode amplifiers use primary switching, i.e. the

mains is rectified directly before the transformer, which means that the

power supply is insensitive to the mains frequency and will operate from

DC to 400Hz.

The amplifier is supplied with an approved European AC line connector. If

this connector is not appropriate for your country, it can be cut off and wired

to a suitable connector in the following way:

Martin Audio – MA1.6 Power Amplifier

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Martin Audio MA1.6s Specifications Page 6