1/3 Power(1)1/8 Power (2)
[W] [W] kcal / h kcal / h BTU / h BTU / h
fP 2600 8 ohms 443 373 380 320 1510 1270
4 ohms 770 630 660 540 2630 2150
2 ohms 1400 1100 1200 950 4780 3750
note 1 Average power with music as program source. The amplifier driven to clip level.
note 2 Normal music power with 9dB headroom, IEC standard power rating.
HEAT POWER
The efficiency can also be calculated, it being the output-power divided by the input-power:
560 watts / 1330 watts= 42%.
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The XLR input connectors are electronically balanced, and wired according to the IEC 268 (pin 2 =
“hot”), and wired in the following way:
PIN 1 GROUND/SHIELD
PIN 2 HOT (+)
PIN 3 COLD (-)
Figure 4: XLR input connector
Figure 5: XLR balanced
Within the Neutrik® Combojack there is a ¼”(6.3mm) phone jack wired in parallel with the XLR.
TIP HOT
RING COLD
SLEEVE GROUND/SHIELD
Figure 6: ¼” TRS plug
The input impedance is high enough (20 kohms balanced) to
allow ”daisy-chaining”, or multiple parallel input
connections. The headroom of the input circuits is also great
enough to accept the maximum output level from virtually
any low-level signal source. Balanced signals are less
sensitive to AC hum and radio interference. The source
impedance should be less than 1 kohms to avoid high
frequency loss in long cables.
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