Lone Audio LA 50.2D 2 x 50W Class D Stereo Mixer Amplifier 4 Ohms Bluetooth Multimedia PA Amp with USB FM

Lone Audio LA 50.2D – 2 x 50W Class D Stereo Mixer Amplifier. Compact multimedia PA amplifier with Bluetooth, USB FM tuner, 1 XLR MIC input with phantom power, 2 RCA AUX inputs, bass and treble controls, and thermal overload protection. Operates at 4 ohms low impedance on AC 220 240V or DC 24V. Perfect for restaurants, boutiques, shops, and small retail spaces. Ultra compact 1U half rack design. Includes remote control.

 

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Description

Lone Audio LA 50.2D 2 x 50W Class D Stereo Mixer Amplifier 4 Ohms Bluetooth Multimedia PA Amp with USB FM

Compact 50W Per Channel – Class D Efficiency for Small Commercial Spaces

The Lone Audio LA 50.2D is a compact yet powerful stereo mixer amplifier delivering 2 x 50 watts of clean, reliable audio. Engineered for small to medium commercial installations, this multimedia mixing amplifier operates efficiently at 4 ohms low impedance — providing perfect power levels for boutiques, small restaurants, retail shops, and office reception areas.

Utilizing advanced Class D amplification technology, the LA 50.2D runs cool, consumes minimal energy, and comes in an ultra compact 1U half rack chassis measuring just 220mm wide. This small footprint makes it ideal for installations where space is limited — behind a counter, under a shelf, or inside a small equipment rack.

Flexible Power Options – AC and DC Operation

Unlike most amplifiers in its class, the Lone Audio LA 50.2D offers dual power supply compatibility. It operates on standard AC 220 240V 50 60Hz mains for fixed installations, or DC 24V for mobile applications, backup power scenarios, or installations without easy access to wall outlets. This flexibility makes the LA 50.2D suitable for food trucks, mobile shops, temporary event booths, and off grid venues.

Built in Multimedia Player – Bluetooth, USB, FM with Remote Control

The Lone Audio LA 50.2D eliminates the need for external sources with its fully integrated multimedia player. Stream music wirelessly via Bluetooth from any smartphone, tablet, or laptop. Play MP3 files directly from a USB flash drive, or enjoy local FM radio stations — all controlled through the included remote control or front panel buttons.

This all in one approach reduces equipment costs, saves rack space, and simplifies daily operation for staff who just need to press play.

Professional Input Configuration

The LA 50.2D is equipped to handle microphones and line level sources simultaneously:

  • 1 XLR MIC input – With DIP switch for MIC LINE selection and 24V phantom power for condenser microphones, perfect for announcements, paging, or live vocals

  • 2 RCA AUX inputs – Connect CD players, media streamers, laptops, or external mixers for background music

  • 1 RCA PRE OUT – Route the pre amplified signal to external amplifiers, subwoofers, recording devices, or additional zones

Complete Tone Control

The front panel provides dedicated individual volume control per input plus bass and treble controls, allowing precise tonal shaping for different room acoustics. Boost treble for speech clarity in carpeted spaces or add bass warmth for music in hard surfaced retail environments.

Professional Output Section

The amplifier features two Left Right speaker outputs using reliable Euroblock connectors for secure, vibration proof connections. A dedicated FM ANT terminal ensures optimal radio reception when using the built in FM tuner.

Built for Commercial Duty – Comprehensive Protection

The Lone Audio LA 50.2D includes three layers of protection:

  • Thermal protection – Prevents overheating during extended operation

  • Overload protection – Guards against excessive input signals

  • Short circuit protection – Instantly disconnects outputs if speaker wires touch

An internal cooling fan ensures reliable operation during long hours of continuous use while remaining quiet enough for background music applications.

Technical Specifications

SpecificationDetail
ModelLA 50.2D
TypeStereo Mixer Amplifier
Power Output2 x 50W
Speaker Impedance4Ω (low impedance)
Power SupplyAC 110 240V 50Hz / DC 24V
MIC Input1 x XLR with phantom power and MIC LINE switch
AUX Inputs2 x RCA
PRE OUT1 x RCA
Speaker Outputs2 x Euroblock Left Right
MultimediaBluetooth, USB, FM tuner
Frequency Response20Hz – 20kHz (±3 dB)
Total Harmonic Distortion (THD)< 0.5%
Signal to Noise Ratio> 80 dB
CoolingFan
Power Consumption150W
ProtectionThermal, overload, short circuit
Dimensions (W x D x H)220 x 160 x 44 mm
Weight2 kg

Ideal Applications for the Lone Audio LA 50.2D

With 50 watts per channel, this stereo mixer amplifier is perfectly suited for:

  • Small restaurants & cafes – Background music with occasional microphone announcements

  • Boutiques & retail shops – Clear, consistent audio for customer engagement

  • Office reception areas – Professional hold music and paging

  • Food trucks & mobile vendors – DC 24V operation enables battery powered use

  • Small bars & pubs – Background music and karaoke or open mic nights

  • Hotel lobbies & small meeting rooms – Discreet background music

  • Yoga studios & small fitness rooms – Clean audio for instruction and music

  • Trade show booths & pop up shops – Portable, compact, and easy to transport

What’s Included

  • Lone Audio LA 50.2D Stereo Mixer Amplifier (quantity: 1)

  • Remote control

  • Power cord

  • User manual

  • Euroblock connectors

Why Choose the Lone Audio LA 50.2D?

You need a compactaffordable, and feature rich amplifier for a small commercial space. The LA 50.2D delivers 50 clean watts per channel in an ultra compact half rack 1U chassis weighing only 2 kg — easily mounted on a shelf, under a counter, or in a small equipment rack.

Unlike home audio amplifiers, the LA 50.2D is built for commercial duty with professional features like phantom power for condenser microphonesDC 24V operation for mobile use, Euroblock speaker connectors for secure wiring, and comprehensive protection circuits.

The built in Bluetooth, USB, and FM tuner means no external media players needed — just power on, pair, and play.

Order the Lone Audio LA 50.2D today and power your small commercial sound system with 50 watts of Class D reliability — all in one, compact, and professional.

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