Martin Audio MA1.6s Specifications download pdf (Page 8)

Martin Audio – MA1.6 Power Amplifier

ENGLISH

MAX OUTPUT POWER MAINS INPUT POWER

Power Full Power 1/3 Power 1/8 Power Idle

sine wave note 1 note 2

MA1.6 8 ohms 2X 410 1500 800 500 140

4 ohms 2X 800 2800 1600 1000 140

2 ohms 2X 870 3100 1600 1000 140

note 1 Average power with music as program note 2 Normal music power with 9dB headroom,

source. The amplifier driven to clip level. IEC standard power rating.

Table 1.

The current draw can be calculated by dividing the mains input power by

the mains voltage. We recommend that you design the power distribution

for at least the current at 1/8 power or 1/3 power for heavy duty demand

like discos etc.

The heat power can be calculated as the following example:

If we consider a headroom of at least 9dB and a 4 ohm load on an amplifier

producing 800 watts per channel. The 1/8 power per channel is then;

800 ÷ 8 = 100 watts, total output; 2 x 100 = 200 watts.

The power consumption according to the chart above is then 1000 watts.

The heat power produced is the difference between the power

consumption and power output; 1000 - 200 = 800 watts per amplifier.

5.6 Input connections

Both inputs are balanced on 3 pin XLR type connectors and wired pin 2

hot, pin 3 cold, pin 1 ground/shield:

PIN 1 - SIG. GROUND/SHIELD

PIN 2 - HOT (+)

PIN 3 - COLD (-)

Figure 3. XLR input connector pin-out

SIG. GND.

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Martin Audio MA1.6s Specifications Page 8