Operator Manual – XR Series Crossovers
Page - 3
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XR Crossovers
All Ashly crossovers are based upon the same powerful state-variable filter circuit, which
guarantees that two adjacent frequency band outputs always remain in phase. Our crossovers
offer a number of useful and unusual features, including continuous tuning, a response
control, and a unique output stage, which maintains low noise at any level setting. These
models also include a 200:1 tuning range, output mute switches, and both TRS and XLR
connectors.
Like other Ashly products, your crossover features low noise and distortion, active balanced
inputs, a peak level indicator, a precision regulated power supply, protection against
abnormal input or output conditions, and rugged mechanical construction. Conservative
design and an unusually thorough procedure for quality control have earned Ashly a
reputation for dependability in the recording, sound reinforcement, and broadcast fields.
Connectors & Cables
Your crossover is provided with two different connector types, wired in parallel. 1/4 inch
stereo phone jacks and three pin XLR type connectors will allow interfacing to most
professional audio products, with pin 2 hot
(+) and pin 3 (-). The inputs and outputs can
be used balanced or unbalanced. We
recommend balanced between components in
your system, as this minimizes ground-loop
or induced hum and noise.
If either inputs or outputs are used
unbalanced, the signal is on the (+)
connection and the (-) connection must be
tied to ground. A mono phone plug used as
an unbalanced connection will automatically
ground the ring of the jack which is the (-)
connection. When using a stereo plug or
XLR connector for unbalanced input or
output connections, the signal (-) MUST be
tied to ground, or loss of signal level may
result.
Inputs
Inputs are 20K
Ω
active balanced, or 10K
Ω
unbalanced. The inputs of all Ashly crossovers
are in phase with the outputs.
Outputs
The outputs are low impedance (200
Ω
typical) pseudo-balanced using either connector.
Pseudo-balanced lines have an equivalent line impedance on both (+) and (-) lines,
allowing for long cable runs without compromising common mode rejection of unwanted
noise. For maximum headroom, terminate outputs into loads of 600
Ω
or greater.
Each model has an additional output labeled MONO LOW OUT. This output represents
the sum of low frequency outputs of both channels, for driving mono sub-woofers in a
stereo system, reducing the number of power amps needed.
Introduction – 2
XR Crossovers – 3
Connectors & Cables – 3
Inputs
Outputs
Physical Description - 4
Installation – 5
Typical Applications - 6
Troubleshooting - 7
Dimensions - 7
Specifications - 8
Warranty - 9
