Ashly nX Series, Operating Manual

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Operating Manual - nX, nXe, and nXp 150W/75W Power Amplifiers
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5 nX BASE MODEL REAR PANEL FEATURES
5.1 Channel Configuration DIP Switch
- Each
channel's six-position DIP switch sets the 80Hz 2nd
order hipass filter, output clip limiter, amplifier gain,
and output mode for that channel.
In the example to the right, the DIP switch is set as
follows:
Switch #
6
- 80Hz high pass filter is OFF (switch down)
Switch #
5
- clip limiter is ON (switch up)
Switch # 4
&
3 - gain is 1.4V (both switches up)
Switch # 2
&
1 - output mode is low impedance (both switches down)
Note: The preferred gain setting of 1.4V means that a 1.4V input will drive the amp to
full output in any output mode. The other three gain settings will apply their respective
amplifier gain regardless of output mode, so the actual input voltage required to fully drive
the amp will vary based on the selected output mode.
5.2 Euroblock Input Jack
- Used for wiring a balanced input. For unbalanced inputs,
wire the (+) input signal to the (+) Euroblock pin and the shield to (-) and (G). Do not leave
the (-) input pin unconnected.
5.3 Remote DC Level Control
- Each channel has a potentiometer circuit available for
remote DC level control. The example to the right illustrates a typical DC level control application.
There is no limit to wire length, but do not use any other ground source. If multiple remote DC level
controls are used for different channels, the same ground and V+ sources can be shared. This feature can be disabled in software ( section 9.4a ).
5.4 Channel Attenuators
– These control the input signal level to the amplifier, and work in conjunction with the remote
DC fader level controls and software control surface faders if the amp is networked. When an input attenuator is turned fully off,
its red clip/mute LED turns on and stays on to indicate mute status for that channel. The attenuators can be disabled, along with the
power switch, using the factory reset switch as shown in section 4.3 or from software.
5.5 Bridge Mode Switch
- This switch places an adjacent channel pair into bridge mode, combining two amplifier outputs for more
power to a single speaker load. Bridge mode uses only the odd numbered input channel and level control, disabling the even numbered
input. Speaker outputs for bridge mode must be wired according to the pin labeling found below the Euroblock speaker connnector. The
bridge mode switch button can be removed for added security by pulling it straight off.
5.6 Euroblock Outputs
- Used for wiring the speaker outputs. For bridge mode, use pin labeling shown below the connector.
5.7 AC Mains Connector
- Always use the AC mains line-cord provided by Ashly for connecting to AC mains. The amplifier
auto-detects voltage from 100-240VAC. WARNING: Do not remove or lift the mains connector ground.
5.8 Serial Number Sticker
- This sticker is on the side of the amplifier chassis and identifies the product model number,
serial number, MAC address (if a networkable model), and AC mains current/power rating.
5.3 Remote DC Level Control