UK stock & warranty01342 580255
TopAV
Home / Mixers / Radio Design Labs RU-MLA2 Dual Microphone / Line Preamplifier
Radio Design Labs

Radio Design Labs RU-MLA2 Dual Microphone / Line Preamplifier

£475.20inc. VAT
£396.00 ex. VAT
Out of stock
1
  • Visa
  • Mastercard
  • American Express
  • PayPal

Or 3 interest-free payments of £158.40 with PayPal Pay in 3.

4.5 on Trustpilot · 14 reviews

Seen it cheaper? We price-match genuine like-for-like quotes. How it works

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 availablePurchase orders: education customers only
7 Years Warranty Included
Key specifications
Inputs (2)XLR(front); detachable term block(rear)
Input level (for +4 dBu output)Switch-selectable (rear panel) MIC/LINE
Mic-79 dB (50 dB Gain); -70 dB (Mic 60 dB Gain)
Line-85 dB
Outputs (2)XLR(front); detachable term block(rear)
Output Impedance150 Ω balanced
Channels2 (A and B; stereo or dual mono)
Gain Trim (2)Front panel adjustable; one per channel
All 14 specifications

Description

The RU-MLA2 is a dual channel audio preamplifier. The inputs and outputs may be connected through the front-panel XLR jacks or on the rear panel detachable terminal blocks. Each input accepts either a balanced microphone or line level signal. Each output provides either a microphone or line level signal. Both the front-panel XLR connectors and the rear-panel terminals are active at all times. The RU-MLA2 may be rack-mounted with the XLR jacks facing forward, or may be reverse-mounted using the RDL RU-FP1 Filler Panel/Reverse Mount Kit.

Each audio input is equipped with a rear-panel switch to select between MIC and LINE level. Two additional switches on each input 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 may be wired balanced or unbalanced. Crosstalk between channels is below the noise floor, allowing the RU-MLA2 to be operated as a stereo preamplifier or as two separate mono preamplifiers.

Gain trim for each channel is provided on a front-panel control. An RDL Dual-led VU meter is provided above each channel gain trimmer. The meters are 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. The RU-MLA2 audio outputs are active balanced. Each output of the RU-MLA2T is equipped with a studio-quality audio output transformer.

Key features:

• Two-channel Audio Preamplifier

• Front Panel XLR Input / Output Jacks

• Detachable Input / Output Terminal Blocks

• Switch-selectable Mic or Line Inputs

• Switch-selectable Mic Gain and Phantom

• Gain Trim on Each Input

• Each Output Switch-selectable Mic or Line

Manufacturer part number RU-MLA2.

Key features

Inputs (2)

XLR(front); detachable term block(rear)

Input level (for +4 dBu output)

Switch-selectable (rear panel) MIC/LINE

Mic

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

Line

-85 dB

Outputs (2)

XLR(front); detachable term block(rear)

Output Impedance

150 Ω balanced

Channels

2 (A and B; stereo or dual mono)

Gain Trim (2)

Front panel adjustable; one per channel

Technical specifications

Connectivity
Inputs (2)XLR(front); detachable term block(rear)
Input level (for +4 dBu output)Switch-selectable (rear panel) MIC/LINE
Outputs (2)XLR(front); detachable term block(rear)
Output Impedance150 Ω balanced
Audio
Mic-79 dB (50 dB Gain); -70 dB (Mic 60 dB Gain)
Power & Physical
Shipping Weight1.48 lbs.
General
Line-85 dB
Channels2 (A and B; stereo or dual mono)
Gain Trim (2)Front panel adjustable; one per channel
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 @ 80 mA

Documents

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.

What to check before buying AV online →

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

Alternative products

Closest matches in this category on price and capability. Not sure which way to go? Our technical team will talk it through.

Need help specifying this for your space?

Ask Andrew. He knows the full catalogue and can advise on installation, mounting and compatible AV systems.

Rated by people who bought from us

4.5 / 5 · 14 reviews on Trustpilot

Every review is collected independently by Trustpilot from people who have bought from us. Read them there →

Call us01342 580255