User Manual

10-1 Nakazawa-cho, Naka-ku, Hamamatsu Japan
www.yamahaproaudio.com
This datasheet provides current draw and heat dissipation values for TXn series power amplifiers.
1/8 power is typical of program material with occasional clipping. Refer to these figures for most applications.
1/3 power represents program material with extremely heavy clipping.
Test signal: Pink Noise, bandwidth limited from 22Hz to 22kHz
1W = 0.860kcal/h, 1BTU = 0.252kcal
Note that Line Voltage [V] x Line Current [A] = [VA], not equals to [W].
X TX6n
X TX5n
X TX4n
Line Current (A)
Power
Consumption (W)
Heat Dissipation
120 V 230 / 240 V Btu / h kcal / h
Standby 0.36 0.20 19 65 16
Idle 1.6 0.88 75 256 65
1/8 power
8 ohms / ch 13.7 7.5 833 1390 351
4 ohms / ch 19.2 10.6 1250 1920 484
2 ohms / ch 22.0 12.1 1432 2540 641
1/3 power
8 ohms / ch 26.9 14.8 1828 2370 597
4 ohms / ch 40.4 22.2 2910 3670 926
2 ohms / ch 44.7 24.5 3216 4720 1190
Line Current (A)
Power
Consumption (W)
Heat Dissipation
120 V 230 / 240 V Btu / h kcal / h
Standby 0.36 0.20 19 65 16
Idle 1.6 0.9 75 256 65
1/8 power
8 ohms / ch 10.4 5.7 637 1070 269
4 ohms / ch 14.7 8.1 955 1470 369
2 ohms / ch 20.0 11.0 1302 2310 582
1/3 power
8 ohms / ch 20.6 11.3 1398 1810 457
4 ohms / ch 30.9 17.0 2222 2810 707
2 ohms / ch 40.6 22.3 2924 4290 1080
Line Current (A)
Power
Consumption (W)
Heat Dissipation
120 V 230 / 240 V Btu / h kcal / h
Standby 0.36 0.20 19 65 16
Idle 1.6 0.9 75 256 65
1/8 power
8 ohms / ch 8.0 4.4 490 820 207
4 ohms / ch 12.2 6.7 795 1220 308
2 ohms / ch 17.6 9.7 1146 2030 512
1/3 power
8 ohms / ch 15.8 8.7 1075 1390 351
4 ohms / ch 25.7 14.1 1852 2340 589
2 ohms / ch 35.7 19.6 2573 3780 952