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RDL RU-ASX4DR 4x1 Stereo Balanced Audio Switcher/Terminal Block

The RU-ASX4DR is a four channel stereo audio selector with input gain adjustments and output level metering. The module is equipped with an internal stereo VCA for setting the output level. Source selection and level adjustment are by remote control.
In stock (50 items available)
  • Brand
    RDL
  • SKU
    RU-ASX4DR
  • Weight
    2.00 lbs
  • Warranty
    3 Years
  • Condition
    New
  • Status
    Available
Product availability status
RDL

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  • $517.62
Market price: $575.13, you save $57.51
  • 10% less
 
  • Shipping info
    We offer free ground shipping on every purchase of $300 and more for US.
  • Payment Methods

  • Return Policy
    We Offer a 30-Day Money Back Guarantee
  • Weight
    2 lbs
  • SKU
    RU-ASX4DR
  • Mnf#/Vendor#
    RDL

The RU-ASX4DR is a four channel stereo audio selector with input gain adjustments and output level metering. The module is equipped with an internal stereo VCA for setting the output level. Source selection and level adjustment are by remote control. Each module may be remote controlled from a single or multiple locations. Rear-panel terminals provide flexible control options using a variety of RDL remote controls or OEM equipment. The inputs and output are connected on rear-panel detachable terminal blocks.

Each of the four stereo line level inputs accepts either a balanced or an unbalanced signal. Each input is equipped with a rear panel screwdriver-adjustable input gain trimmer. Input signal levels between -15 dBV and +8 dBu may be set to the proper operating level as indicated by a stereo dual-LED VU meter. This assures ample headroom at all normal operating levels. The module is equipped with two identical dual-led VU meters, one on the front panel, the other on the rear panel. The maximum input level is +25 dBu.

The RU-ASX4DR was designed for absolute silent switching of audio signals using only solid-state switching circuitry. Each of the VU-meters, left and right, is calibrated to read +4 dBu feeding the corresponding balanced output.

The audio output level is controlled by a remote 10 kO linear taper pot or by 0 to 10 Vdc. A single remote control location is possible using a remote 10 kO potentiometer. The RU-ASX4DR is compatible with RDL D SERIES-RLC10 rotary remote controls that provide user adjustment at single or multiple locations. Audio levels are controlled in 0.5 dB steps using noiseless zero-crossing digital attenuators for optimum reliability, precise tracking and long-term click-free service. The output is stereo line level. Each output channel may be connected balanced or unbalanced.

Inputs are selected by a sequential remote control such as an RDL D-RCS4, by a momentary remote control such as an RDL D-RC4M or by an external open-collector momentary closure to ground. The RU-ASX4DR may be remote controlled from a single or from multiple locations. When a source is selected, the RU-ASX4DR provides a 25 mA open-collector output to control other equipment or modules. A front-panel LED indicates the selected source. Only one source may be selected at a time. If the momentary input terminal for a selected source is triggered again, all inputs are turned off.

Rear-panel DIP switches are provided to set the VCA activity LEDs for momentary or continuous display, to select the remote control mode (sequential or individual source selection), and upon power-up a return to either a pre-programmed source or to the last source used. The pre-programmed source is stored when the module is installed.

The RU-ASX4DR offers exceptional headroom, very low distortion, excellent crosstalk isolation, wide flat frequency response and extremely low noise with very high common-mode signal rejection. It provides exceptional audio performance for the most critical applications in a professional audio environment.

The RU-ASX4DR operates from 24 Vdc connected through a rear-panel detachable terminal block.

Features:

  • Remote Controlled Switching and Level Control
  • Multiple Remote Control Locations Possible
  • 4 Stereo Inputs to 1 Stereo Output
  • Line-Level Audio Switching
  • External Level Control Using 10 kO Potentiometer or 0 to 10 Vdc
  • 96 dB Attenuation Range in 0.5 dB Steps
  • Noiseless Zero-Crossing Adjustment Steps
  • Precise Level Tracking on Each Channel
  • Balanced or Unbalanced Inputs and Output
  • Gain Trim on Each Source
  • Controllable Using Various RDL Remote Controls
  • Open-Collector Output for Selected Input
Audio Inputs (4): Stereo, Line level on Detachable Terminal Block
Input Impedance: > 20 kO balanced, > 10 kO unbalanced
Input Level (for +4 d8u output): -15 dBV to +8 dBu, adjustable on rear-panel trimmers
Maximum Input Level: +25dBu
Common Mode Rejection: > 60 dB (50 Hz to 120 Hz)
Headroom (above +4 dBu): > 18 dB (unity gain)
Frequency Response: 10 Hz to 20 kHz (±0.2 dB)
Distortion (THD + N): < 0.01% (20 Hz to 20 kHz)
Pioise (belov. +4dBu): < -85 dB (with any input selected); < -95 dB (with no input selected)
Off Attenuation: > 85 dB (1 kHz), > 70 dB (20 kHz)
Crosstalk: < -80 dB (1 kHz); < -60 dB (20 kHz)
Front-Panel Indicators (11): Power, Selected channel (4), VCA activity up/down (2), L and R Dual-LED VU meters (4)
Audio Output: Stereo, Line level on Detachable Terminal Block
Output Impedance: 150 O balanced, 75 O unbalanced
Output Level: +4 dBu balanced, unbalanced output 6 dB below balanced output level
Control inputs (6): 1mA, pulled to ground (4, source selection); 1 mA, pulled to +15 Vdc (SEL); Oto 10 Vdc (VCA)
Control outputs (5): 25 mA, open-collector to ground
VCA Control Input: 0 to 10 Vdc; or 0 to 10 kO linear potentiometer
Rear-Panel Indicators (4): L and R Dual-LED VU meters
RDL Remote Control Compatibility: D-RC4M, D-RCS4 (source selection); D-RLC10, D-RLC10M, D-RLC10K, D-RLC10KM, D-RLC3 (VCA)
Power Connection: Detachable Terminal Block
Power Requirement: 24 Vdc @ 175 mA, Ground-referenced
Ambient Operating Environment: 0° C to 55° C
WEEE Weight: 1.22 lbs
Shipping Weight: 1.53 lbs
Free Ground Shipping
We offer free ground shipping on every purchase of $300 and more for US and US territory. Please choose "Free Ground Shipping (UPS/USPS)" option at checkout.

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International Customers
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Most items ordered from BZB Express will be shipped out from our California Warehouse. Will-Calls are only allowed with Appointment Only - Please call Customer Service to set one up between the hours of 9am to 6pm PST.

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We Offer A 30-Day Money Back Guarantee: 
Our main goal is to ensure your complete satisfaction with our service and products. If, for any reason, you are not 100% satisfied with your purchase, you can return it within 30 days of the purchase date for a full refund. Our 30-day money back guarantee applies to all of the products we sell, except for: TVs and monitors 20" and larger, Special Order merchandise, or any item indicated as non-returnable. Shipping is not refundable. Prior to returning your purchase, a Return Merchandise Authorization (RMA) number will be provided to you.

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Refunds on returned items will be issued in the same payment form as received from the customer at the time of purchase. Once we receive the product and it passes inspection, we will credit your account. Please allow 3 - 6 business days for a credit to appear on your account.

Exchanges:
If the item was sent back to us for an exchange, please allow 3 - 5 business days for the replacement to be processed.

No Returns/Exchanges on the following:

TVs and monitors 20" and larger
Special Order merchandise
Any item indicated on the website as non-returnable

For more information see our official Return Policy