User guide

All material © 2010 Martin Audio Ltd. Subject to change without notice 16
7.2 Thermal Dissipation
Martin Audio MA2.8Q
Level Load
Rated
Power
AC Mains
Watt
Thermal Dissipation
230V AC
115V AC
Out
In
Dissipated
BTU/hr
Kcal/hr
Switch in off position*
0.13
0.09
0
1.71
1.71
5.8
1.5
Power on, amplifier in idle mode
0.2
0.4
0
35
35
119
30
Watt
Ampere
Watt
BTU/hr
Kcal/hr
Pink Noise
(1/8 rated
power)
8Ω / Stereo
4 x 360
1.3 2.6 180 225 100 341 86
16Ω / bridged
2 x 720
4Ω / stereo
4 x 700
2.2 4.4 350 438 142 486 123
8Ω / bridged
2 x 1400
2Ω / stereo
N/A
N/A N/A N/A N/A N/A N/A N/A
4Ω / bridged
N/A
Pink Noise
(1/4 rated
power)
8Ω / Stereo
4 x 360
2.3 4.5 360 450 145 494 125
16Ω / bridged
2x 720
4Ω / stereo
4 x 700
4.1 8.2 700 875 230 784 198
8Ω / bridged
2 x 1400
2Ω / stereo
N/A
N/A N/A N/A N/A N/A N/A N/A
4Ω / bridged
N/A
*Power absorbsion with amplifier switched off is not zero because to comply with EN60065/IEC 60065:2001-
12 all amplifier circuitry must include a “bleed” resistor across the incoming AC mains power to discharge
residual current to prevent the risk of shock from an amplifier disconnected from the mains.