Description
OXMOOR MIXING MATRICES
The Oxmoor RMX-44 Mixing Matrix System offers a unique, high-quality solution for many audio routing and combining applications. For enhancing flexibility, all input/output assignments can be controlled remotely via switch closures. Signal routings within a complex sound system can be altered or modified from a central location.
The RMX-44 is a four-input/four-output combination signal buffer, mixer and distribution amplifier. All inputs can be individually adjusted in level, and combined together to feed any or all outputs.
Potential applications include providing simultaneous stereo and mono feeds from different input assignments. High and low input/output levels can also be freely intermixed, allowing semi-pro and professional equipment to be used in a sound system without additional interface units.
Front panel controls are simple-to-use input gain trim pots, with ±15dB adjustment. Rear panel, electronically balanced inputs and transformer balanced outputs use XLR connectors. While the nominal input signal level range is –10 to +8dBu, the unit is capable of handling +24dBu signal levels. Each output can be unbalanced independently.
A rear panel 25-pin control port provides individual access to each of the input/output matrix assignment crosspoints. All that is required to route any input to a chosen output is a switch closure.
Technical Specification:
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Frequency Response: | 20Hz to 20kHz, +0, –3dB, –3dB points, ref 1kHz | |
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Hum and noise: | Ref +4dBm output @ unity gain, –92dB (20Hz to 20kHz, unweighted) | |
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Distortion: | Total harmonic (THD + NOISE) ref +4dBm output @ unity gain, –80dB/0.0016% (20Hz to 20Hz, unweighted) | |
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Crosstalk and | | |
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off isolation: | Channel to channel, –80dB(20Hz to 20kHz) | |
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Inputs: | Electronically balanced (RF suppressed), female XLR, | |
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| Input impedance, 80kohms, max input level +24dBu | |
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Outputs: | Transformer balanced, male XLR, source impedance 150ohms, recommended load impedance 600ohms or greater, max. output level (ref 1kHz @ rated THD), terminated with 600 ohms +24dBm, unterminated +26dBu. | |
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Trim pot gain range: | Ref 0dBu output ±15dB | |
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Control port: | Input type active low, internally pulled up to +15VDC | |
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| Input protection 1/2max. line voltage, 12kV static | |
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| Logic action required maintained closure to common connector female 25 pin standard. D-sub Logic levels (at control port) low <3 volts, high >7 volts | |
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| Max paralleled inputs 64 | |
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| Max sink current 50mA | |
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| Max cable length 600m | |
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| Switching time 100ms | |
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| Power output +15VDC ±0.1V, 50mA | |
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Turn on delay: | Power up delay 2 sec ±0.25 sec | |
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Mains power: | 100–125VAC, 200–240VAC (cable included) | |
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Dimensions: | 44(h) × 482(w) × 183(d)mm | |
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Weight: | 3.1kg | |
Full data sheets are available on request. Manufactured in the USA by Oxmoor Corporation. Oxmoor is a trademark of Oxmoor Corporation.