55
Operating Manual - nX, nXe, and nXp 150W/75W Power Amplifiers
Distortion (SMPTE, typical) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .<
0.5
%
Distortion (THD-N, typical)
(8 Ohm, 10dB below rated power, 20Hz-20kHz) . . . . . . . . . . . .<
0.5
%
Signal to Noise (26dB input sensitivity, 20Hz-20kHz, unweighted) . . .>
99
dB (150W models), >
96
dB (75W models)
Frequency Response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20Hz-20kHz, +/-
0.05
dB
Channel Separation (dB from full output, 1kHz). . . . . . . . . . . . . .
-75
dB
Damping Factor (8 Ohm load, <1kHz) . . . . . . . . . . . . . . . . . . . . .>
250
Balanced Input Connector (per channel) . . . . . . . . . . . . . . . . . . . .Euroblock (3.5mm)
Input Impedance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10k Ohm
Maximum Input Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .+21dBu
Bridge Mode Switch (per channel pair). . . . . . . . . . . . . . . . . . . . .In for bridged mode, Out for stereo
Remote DC Level Control (G, CV, V+ per channel). . . . . . . . . . .Euroblock (3.5mm), V+ is fully on, G is fully attenuated
DIP Switch settings (per channel)
Switches 1-2: Output Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Low Z (low impedance), 25V, 70V, 100V output
Switches 3-4: Input Gain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26dB, 32dB, 38dB, 1.4V
Switch 5: Output Clip Limiter . . . . . . . . . . . . . . . . . . . . . . . . . . .On, Off
Switch 6: Input High Pass Filter . . . . . . . . . . . . . . . . . . . . . . . . .80Hz 2nd order HPF - On, Off
Speaker Output Connector (per channel). . . . . . . . . . . . . . . . . . . .Euroblock (7.62mm)
nXe and nXp Models Only:
Control Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .100MB Ethernet, RJ-45 connector
Remote Standby Contact Closure . . . . . . . . . . . . . . . . . . . . . . . . .Euroblock (3.5mm) - close contact pin to Ground for standby mode
Fault Logic Output Pins (per channel). . . . . . . . . . . . . . . . . . . . . .Euroblock (3.5mm) - fault indicated by loss of 1Hz "heartbeat" signal
Fault Conditions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Over-temperature, power supply voltage fault, power limiting
(+5V and G pins available for logic sink and source)
Maximum Fault Pin Source Current. . . . . . . . . . . . . . . . . . . . . .20mA
Maximum Fault Pin Sink Current. . . . . . . . . . . . . . . . . . . . . . . .200mA
Preset Recall Contact Closure Pins 1-4 . . . . . . . . . . . . . . . . . . . . .Euroblock (3.5mm) - close contact pin to Ground for preset 1-4 recall
Data Connector for Ashly WR-5, RD-8C, RS-232 adapter . . . . . .Euroblock (3.5mm) - Gnd, +18V, Data Out, Data In
AUX Output Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Balanced Euroblock (3.5mm)
AUX Output on two channel models. . . . . . . . . . . . . . . . . . . . . .AUX A & B use amp ch 1-2 signal,
or
use matrix mixer if DSP installed
AUX Outputs on four channel models. . . . . . . . . . . . . . . . . . . . .AUX A, B, C, D use amp ch 1-4 signal, post DSP if installed
AUX Output Maximum Level . . . . . . . . . . . . . . . . . . . . . . . . . . .+21dBu
Network Audio Option (factory installed) . . . . . . . . . . . . . . . . . . .Dante, Cobranet
Digital I/O Option (factory installed) . . . . . . . . . . . . . . . . . . . . . .AES3, two or four channel with zero-latency pass-through
Front Panel Indicators
Power Switch LED (white) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .On, Off, Standby (flashing)
Clip/Mute LED (red) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Per Channel - Clip @ 1dB below rated output, Mute
Signal LED (green) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Per Channel - -18dB below rated output
Current LED (green) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Per Channel - Brightness is proportional to output current
Temp LED (yellow) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Per Channel - On dim at 90% of maximum operating temperature
On full bright at 100% maximum operating temp, + protect
Bridge LED (green) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Per Channel Pair - On, Off
Protect LED (red). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .On for fault condition countermeasures or shut-down, Off
Sleep LED (blue) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .On when amp is asleep, on briefly when sleep mode is enabled
(See Troubleshooting section for Protect LED error codes)
Disable LED (yellow) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .On when front panel controls are disabled, Off
Com LED (green) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .On for Ethernet activity or Device ID (nXe, nXp only)
Attenuators
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Per channel: rear panel, software,
offset link group, remote control.
Fully off = Mute
Amplifier Protection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Shorted output power limiting, over-temperature, DC-output,
power supply fault, mains fuses & inrush-current limiting
Cooling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Continuously variable temperature controlled fan
