Specifications – Numark Industries NPA3300/NPA6600 User Manual

Page 7

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NPA3300-NPA6600

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©2000 Numark Industries

- 7 -

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SPECIFICATIONS

Output power:

NPA3300:2x150W@4 ohm, 2x100W@8 ohm, 1x280W@8ohm bridged
NPA6600:2x300W@4 ohm, 2x200W@8 ohm, 1x480W@8 ohm bridged

Input sensitivity:

NPA3300 < 900mV
NPA6600 < 1200mV

Input impedance:

22kOhm (unsym) - 33kOhm (sym)

Channel separation:

>70dB@1kHz

Frequency response:

10Hz ... 100kHz

S/N ratio (JISA weighted):

NPA3300: 115dB
NPA6600: 117dB

THD:

<0.1% at rated power

Damping factor:

100@8Ohm

Dimensions:

482mmx 88mmx 450mm including handles

Weight:

NPA3300: 15.5kg
NPA6600: 21.kg

AC power requirement idle/max
(4 Ohm Load):

NPA3300: 45/530W
NPA6600: 55/1040W

Mains voltage:

230V/50Hz AC

Notes on protection circuits:

These amplifiers are equipped with different protection circuits to prevent any damage to the amplifier
itself or the speakers due to improper operation circumstances.

1. Overheat- For low mechanical noise emission, the built-in fan operates at low speed as long as

the internal heat sink keeps cooler than 55 degrees Celsius. The fan will speed up to maximum
speed when this temperature is exceeded. When the heat sink temperature exceeds 90 degrees
Celsius, the amplifier will shut down the outputs to avoid overheating. The outputs will be
automatically re-activated when the heat sink comes below 70 degrees Celsius.

2. DC on output- When DC is detected on the output, the amplifier will shut down the outputs to

avoid speaker damage.

3. Short circuit on the output- When a short circuit is detected on the output, the amplifier will shut

down the outputs to avoid damage to itself.

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