Operating Manual - nX, nXe, and nXp Power Amplifiers
18
[Load Analysis>Launch Load Analysis]
- This is the working window for performing a load analysis. The user must
first select an available networked amplifier from the <Analysis-Capable Amplifier> device tree, then select the output channel
to test, then apply the appropriate test settings.
Warning: Do not send low frequency test tones to
high frequency drivers or use excessive sweep level, always
be certain that the swept frequency range and output level
is within the safe operating range of the speaker under test.
Remember that all DSP functions are disabled, including
crossover filters and limiters.
A sweep level setting of 1V
will produce a relatively quiet test tone into any speaker,
however load impedance characteristics can change at higher
volume levels, so test accordingly but carefully.
Make
sure the Sweep Level and Sweep Start Frequency
are properly set for this loudspeaker before running
the test!
Click on <Test Amplifier> and a series of tones
will be heard through the loudspeaker under test. The test
can be immediately cancelled by pressing the same button
again. When the test is finished, a plotted curve (yellow)
shows load impedance vs. frequency. Click <Set Ref.> to
establish this curve as a reference (red) baseline, or save the
data to disk for future tests.
Note: Running the load analysis tool when there is no
speaker connected to the amplifier is useful for learning about
the procedure, but provides no meaningful data.
9.1j Help Menu
-
[Help>About Protea
ne
Software]
- Tells the software version
[Help>Contents and Index]
- Online help for device function is found here, along with the ability to search for topics.
[Help>Capture Network Configuration]
- While most people will not use this function, it can be helpful when
troubleshooting network problems or communicating with Ashly technical support.
9.2 nX Device Options Menu
Double-click on a nX amplifier in the Network tree or on the canvas.
9.2a Flash Reprogram Mode
- A nX amplifier can be flash reprogrammed by
downloading a new program file (firmware) to the amplifier over the network. Latest firmware
updates, if available, can be found on the Ashly website. When the amplifier is put into flash
reprogram mode, all audio functions are suspended, the power switch LED flashes, and the COM
LED remains lit until flash reprogram is completed. Flash Reprogram only appears in the device
options menu when a live device is connected.
9.2b Link Group Configuration
- Link groups allow DSP functions of the same
type to track each other across channels within a device. For example, if two separate EQ
controls on different channels are linked, any change made to either one of the equalizers
will result in an identical change to the other.
nX amplifiers support up to 16 Link Groups, and every DSP tool can be assigned to one of these groups. Once assigned
to a group, all similar DSP functions within that group will track parameter changes with each other. More than one type of
DSP function block can be assigned to the same group. Each link group can be assigned a name by the user, and can also be
assigned a color for easy identification. For further details about linking, see the online help in Protea
ne
software.
9.2 Device Options
9.1i Load Analysis
