Ashly XR-4001 XR Crossovers, Connectors & Cables, Unbalanced Connections and Grounding, Inputs

Operator Manual –XR Series Crossovers Page - 5

XR Crossovers

Ashly crossovers are based upon a powerful state-variable filter circuit, which guarantees that two adjacent frequency band outputs always remain in phase. These 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. The 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

Connectors & Cables

The outputs are low impedance (100 ohms typical) servo-balanced using either connector. A servo-balanced output stage simulates a true transformer output to allow interfacing with virtually any type of load. For maximum headroom, terminate outputs into loads of 600 ohms or greater.

XR Connector Polarities

Unbalanced Connections and Grounding

If you must use unbalanced connectors, the negative lead of the connector should be tied to the ground lead. Using unbalanced connections could result in chassis ground-loop noise. Altering the signal/chassis ground relationship in equipment connected to your MQX unit may eliminate the noise.

Inputs

Inputs are 20K
active balanced, or 10K
unbalanced. The inputs of all Ashly crossovers are in phase with the outputs.

Outputs

The outputs are low impedance (200
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
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.

Safety Instructions – 3

Introduction – 4

XR Crossovers – 5

Connectors & Cables – 5

Unbalanced

Connectors

Inputs

Outputs

Physical Description - 6

Installation – 7

Typical Applications - 8

Troubleshooting - 10

Dimensions - 10

Specifications - 11

Warranty - 12

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