Presenter

All-in-One Presentation Mixer
Combines microphone, USB, and 3.5mm audio inputs in one compact, easy-to-use device.

Professional Mic Preamp
Includes an XLR mic input with switchable 48V phantom power for dynamic and condenser microphones.

USB Audio Playback
Plays high-quality digital audio from a connected laptop via USB, which also powers the unit.

3.5mm Stereo Input
Connects smartphones, tablets, or other mobile devices for music playback or video support.

Integrated EQ and Filters
Features low and high EQ controls plus a 3-position low cut filter to shape microphone tone and reduce rumble.

Balanced XLR Outputs
Feeds powered speakers or PA systems with clean, professional signal output.

Mono Switch for Single Speaker Use
Allows you to sum stereo outputs into mono for simple setups.

Ground Lift Switch
Eliminates hum or buzz from ground loops when connecting to PA systems.

Compact and Durable
Housed in a rugged 14-gauge steel chassis for reliable, long-term use in live environments .

Security Ready
Includes a Kensington lock slot to prevent theft during events or installations.

General Specifications
Product Name: Radial Presenter
Device Type: Microphone & Laptop Presentation Mixer
Audio Circuit Type: Active Preamplifier Circuit with Digital-to-Analog Input Conversion
Number of Channels: 2
Construction: 14-Gauge Steel Chassis
Power Source: 5V via USB
Operating Conditions: For use in dry locations between 5°C and 40°C
Kensington Lock Slot: Yes

Connectivity
Mic Input: XLR (Balanced)
Program Inputs: USB Type-B, 3.5 mm TRS Stereo Jack (front panel)
Outputs: Stereo Balanced XLR (Left/Right)
External Controls: Lift (Ground Lift), Mono Switch, 48V Phantom Power Switch

Microphone Preamp
Gain Range: +52 dBu
Phantom Power: +48V (switchable)
Input Impedance: 10 kΩ
Maximum Mic Input: +7 dBu
Tone Controls: Low and High EQ
High-Pass Filter: 3-position low cut

Audio Performance
Frequency Response: 20 Hz – 20 kHz (–0.4 dB / 0 dB)
Dynamic Range: +91 dBu
Total Harmonic Distortion (THD): 0.004% @ 20 Hz / 1 kHz / 10 kHz
Intermodulation Distortion (IMD): 0.003% @ 0 dBu, 0.01% @ –10 dBu, 0.03% @ –20 dBu
Phase Deviation: –28° @ 20 Hz, –1° @ 1 kHz, +2° @ 10 kHz
Noise Floor: –84 dBu
Output Impedance: 2.74 kΩ

Additional Features
Program Level Control: Controls volume of USB and 3.5 mm input
Mono Switch: Sums left and right output signals
USB Audio Playback: High-quality digital audio from laptop
Application Scenarios: Podiums, Lectures, Conferences, Weddings, VoIP, Podcasting
USB Power Indicator: LED indicator when powered

Included Functionality
Mic Preamp with EQ and Low-Cut
USB Digital Audio Interface
Smartphone/Tablet Audio Integration
Balanced Line Outputs for PA
Ground Lift to Eliminate Hum