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Radio Design Labs

Radio Design Labs RU-NL4 Network to Line Level Interface

Name: Radio Design Labs RU-NL4 Network to Line Level Interface
Brand: Radio Design Labs
SKU: RU-NL4
Price: 810.00 GBP
Availability: OutOfStock

£810.00inc. VAT

£675.00 ex. VAT

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Bought in the UK, backed in the UKWhy it matters →

Sourced through UK distribution
UK manufacturer warranty
UK-based engineers
No import duty or customs charges
GBP pricing, UK VAT invoices

Return within 14 days

Installation services available Purchase orders: education customers only

7 Years Warranty Included

Key specifications

Network ConnectorRJ45 with Link and Speed indicators

Digital Audio Ethernet ProtocolDante

Transmission Rate100 Mbps

Sample Rates Supported44.1 kHz, 48 kHz (default)

Bit Depth Supported24 bits

Audio Operating Levels-18 dBFS = +4 dBu

Outputs (4)Balanced, detachable terminal block

Output Level+4 dBu (nominal)

All 21 specifications

Description

The RU-NL4 modules are Dante audio network interface products compatible with line-level audio equipment inputs. These modules are designed to be mounted in equipment racks, closets, conference tables and on shelves or backboards in commercial/industrial installations.

Full specifications Datasheet Compare alternatives

APPLICATION: The RU-NL4 is a high quality converter that provides professional line-level outputs from four Dante network audio channels. Each output provides +4 dBu balanced for a network digital audio level of -18 dBFS. The professional output directly interfaces with other professional and commercial equipment without the need for additional gain. Crosstalk is below the noise floor between all outputs across the entire audio spectrum. The noise floor is better than 80 dB below operating level with greater than 18 dB of headroom.

One front-panel green signal LED corresponds to each of the four Dante input channels. Received audio level is indicated on the variable-intensity LED indicator, facilitating setup when a networked computer is not connected at the module’s location.

The RU-NL4 is powered from an external 24 Vdc power supply, available separately. The RU-NL4P is equipped to operate from a PoE enabled network switch. The RU-NL4P will reserve power from the switch even while being powered from an external 24 Vdc supply. If PoE power and an external 24 Vdc supply are both feeding an RU-NL4P, the unit will run from the external supply and will seamlessly switch over to PoE power upon loss of the external supply.

The RU-NL4’s superior performance specifications make it ideally suited to the most demanding installations, and an exceptional value in commercial networked audio systems.

The RU-NL4 is constructed in a durable, professional all-metal enclosure suitable for free-standing, surface-mounted or rack-mounted operation. This full-featured product is engineered and manufactured in the U.S.A for continuous duty in demanding installations. Built to last. Built to outperform.

Key features:

• Converts Four Dante Network Audio Signals to Professional Line Level

• Line-Level Outputs Provide +4 dBu with > 18 dB Headroom

• Exceptional Low-Noise and Low-Distortion Performance

• Crosstalk Below the Noise Floor

• Signal LEDs Indicate Audio for Each of the Four Dante Audio Sources

• High Resolution 24 Bit Digital to Analog Conversion

• Legendary RDL Analog Filtering Enhances Superb Audio Performance

• LED Indicators Show Network Sync Status

• Outputs Mute when Digital Audio Inputs are Inactive

• Normal or Hot-Standby Operation from PoE (Model RU-NL4P)

• Equipped for Rack Mounting or Surface Mounting

Manufacturer part number RU-NL4.

Key features

Network Connector

RJ45 with Link and Speed indicators

Digital Audio Ethernet Protocol

Dante

Transmission Rate

100 Mbps

Sample Rates Supported

44.1 kHz, 48 kHz (default)

Bit Depth Supported

24 bits

Audio Operating Levels

-18 dBFS = +4 dBu

Outputs (4)

Balanced, detachable terminal block

Output Level

+4 dBu (nominal)

Technical specifications

Connectivity

Network ConnectorRJ45 with Link and Speed indicators

Digital Audio Ethernet ProtocolDante

Sample Rates Supported44.1 kHz, 48 kHz (default)

Bit Depth Supported24 bits

Outputs (4)Balanced, detachable terminal block

Output Level+4 dBu (nominal)

Output Impedance150 Ω balanced; 75 Ω unbalanced

Power Connections (2)Power Jack; Detachable Terminal Block

Audio

Audio Operating Levels-18 dBFS = +4 dBu

Power & Physical

Dimensions5.8" (15 cm) W; 1.7" (4.3 cm) H; 5.2" (13.2 cm) D

Shipping Weight1.576 lbs. (RU-NL4); 1.601 lbs. (RU-NL4P)

General

Transmission Rate100 Mbps

Frequency Response20 Hz to 20 kHz (± 0.5 dB)

THD+N< 0.05%

Noise below +4 dBu< -80 dB (output active); < -95 dB (outputs muted)

Crosstalk< 85 dB (20 Hz to 20 kHz)

Headroom above +4 dBu> 18 dB

Indicators (9)Power In (1); Audio Signal LEDs (4), Network Sys and Sync (2), Ethernet Link and Speed (2)

Ambient Operating Environment0° C to 40° C

Power Requirement24 Vdc @ 110 mA, or PoE (RU-NL4P)

PoE (RU-NL4P)Class 0, IEEE 802.3af

Documents

Radio Design Labs RU-NL4 Network to Line Level Interface — RDL Datasheet

Delivery & returns

Estimated delivery 9 Sept - 13 Sept. UK mainland delivery only. Some large or made-to-order items carry longer lead times, shown on the product page.

Unused items in original packaging can be returned within 14 days of delivery — see the returns policy for how business and consumer returns differ. Faulty items are covered under manufacturer warranty and by your statutory rights.

Full delivery & returns policy

Bought in the UK, backed in the UK

This item is sourced through UK distribution and ships to you from within the UK, so the order never crosses a customs border.
The manufacturer warranty is honoured here in the UK. If something fails, you deal with us, not with an overseas seller in another time zone.
Our own UK-based engineers install, commission and support what we sell, and can attend site when a system needs hands on it.
Delivered within the UK mainland, so there is no import duty, customs charge or courier handling fee waiting for you on delivery.
Prices are in pounds sterling with proper UK VAT invoices, and purchase orders are accepted from approved education accounts: no currency conversion and no surprises at the door.

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Payment & security

Pay securely by card. Education customers can apply for a 30-day purchase order account.

Schools, colleges, sixth forms, universities and multi-academy trusts can order on invoice, with no card payment required. Purchase orders and credit terms are for education customers only.

All transactions are processed over an encrypted, secure checkout.

Purchase order & invoice terms