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Radio Design Labs

Radio Design Labs RU-MLD4 Microphone / Line Distribution Amplifier - 1x4

Name: Radio Design Labs RU-MLD4 Microphone / Line Distribution Amplifier - 1x4
Brand: Radio Design Labs
SKU: RU-MLD4
Price: 476.40 GBP
Availability: OutOfStock

£476.40inc. VAT

£397.00 ex. VAT

Out of stock

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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

InputsXLR(front); detachable term block(rear)

Input level (for +4 dBu output)Switch-selectable (rear panel) MIC/LINE

Mic-79 dB (50dB Gain); -70 dB (Mic 60dB Gain)

Line-85 dB

Outputs (4)XLR(front); detachable term block(rear)

Output levelSwitch-selectable (rear panel) MIC/LINE

Output Impedance150 Ω balanced

Gain TrimFront panel adjustable

All 20 specifications

Description

The RU-MLD4 is a four channel audio distribution amplifier. The input and all four outputs may be connected through the front-panel XLR jacks or on the rear panel detachable terminal blocks. The input accepts either a balanced microphone or line level signal. Each of the four outputs provides either a microphone or line level signal. Both the front-panel XLR connectors and the rear-panel terminals are active at all times.

Full specifications Datasheet Compare alternatives

The audio input is equipped with a rear-panel switch to select between MIC and LINE level. Two additional switches allow setting the MIC input for LO or HI gain and for enabling or disabling standard 24 Vdc phantom. The two microphone gain settings allow the connection of a wide variety of dynamic and condenser microphones. Each output is provided with a separate rear-panel switch to set the associated level to either MIC or LINE. Audio outputs are isolated from each other and may be wired balanced or unbalanced. Gain trim is provided on a front-panel control. An RDL Dual-led VU meter is provided above the gain trimmer. The meter is calibrated to indicate +4 dBu for outputs set to line level. The rear panel provides a detachable terminal block and a power input jack to connect 24 Vdc power. Each output of the RU-MLD4T is equipped with a studio-quality audio output transformer.

Key features:

• Distribution Amplifier with Four Outputs

• Front Panel XLR Input / Output Jacks

• Detachable Input / Output Terminal Blocks

• Switch-selectable Mic or Line Input

• Switch-selectable Mic Gain and Phantom

• Gain Trim on Input

• Each Output Switch-selectable Mic or Line

Manufacturer part number RU-MLD4.

Key features

Inputs

XLR(front); detachable term block(rear)

Input level (for +4 dBu output)

Switch-selectable (rear panel) MIC/LINE

Mic

-79 dB (50dB Gain); -70 dB (Mic 60dB Gain)

Line

-85 dB

Outputs (4)

XLR(front); detachable term block(rear)

Output level

Switch-selectable (rear panel) MIC/LINE

Output Impedance

150 Ω balanced

Gain Trim

Front panel adjustable

Technical specifications

Display

Panel Diagram - FrontMetric DXF

Panel Diagram - RearMetric DXF

Connectivity

InputsXLR(front); detachable term block(rear)

Input level (for +4 dBu output)Switch-selectable (rear panel) MIC/LINE

Outputs (4)XLR(front); detachable term block(rear)

Output levelSwitch-selectable (rear panel) MIC/LINE

Output Impedance150 Ω balanced

Audio

Mic-79 dB (50dB Gain); -70 dB (Mic 60dB Gain)

Power & Physical

Shipping Weight1.48 lbs.

General

Line-85 dB

Gain TrimFront panel adjustable

THD+N< 0.1% (Mic); < 0.005% (Line)

CMRR> 60 dB (Mic); > 50 dB (Line)

Headroom> 20 dB (above +4 dBu LINE output)

Ambient Operating Environment0° C to 55° C

Power RequirementGROUND-REFERENCED, 24 Vdc @ 90 mA

DatasheetPDF

Engineering Functional BlockAmerican DXF

ru-mld4.zipTIF

State nameView

Documents

Radio Design Labs RU-MLD4 Microphone / Line Distribution Amplifier - 1x4 — 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