In order to give you better service we use cookies. By continuing to browse the site you are agreeing to our use of cookies.

Multimedia DI

With multiple input connector types, these DI boxes allow you to easily interface with a variety of devices including small format mixers, media players, tablets and smartphones.p>

Filter & sort
Number of articles 8
Sort
Radial USB Pro
R800 1050 00

USB Laptop Direct Box

Whether you are playing backing tracks on stage, giving an audio presentation, or performing the role of DJ at an event, the USB-Pro is the easiest way to provide a high quality noise-free connection between a laptop and any sound system. Made for plug and play simplicity, the USB-Pro will automatically be listed as an available sound card in the audio settings of all popular operating systems including Windows and Mac, with 24bit/96kHz digital to analog converters that retain the quality of the audio signal. A stereo pair of balanced XLR outputs allows you to connect to a microphone preamplifier, PA system, mixing console, or even a powered speaker, with an on-board level control for quick and easy volume adjustments. Should any noise be encountered, ground lift switches are provided and isolation transformers can be inserted into the signal path to eliminate hum and buzz from ground loops, for a clean connection to the PA.

Specifications

Audio circuit type Custom decoder with analog line drive
Frequency response 5Hz ~ 40kHz (30Hz ~ 18kHz with isolation)
Dynamic range >90dB
Total harmonic dirstortion 0.01%
Gain +8dBu
Output impedance 250 Ohms (nominal)
Noise -90dB
Maximum output +8dBu
Power USB bus powered 500mA maximum

(For full specifications see manufacturers product site under "links" tab)

 

Buy
BT-Pro
R800 1055 00

Stereo Bluetooth DI Box

The BT-Pro makes it easy to quickly connect to any smartphone, tablet, or mobile device for high quality audio playback through a sound system. It wirelessly pairs over Bluetooth, eliminating the need to search for adaptor cables and providing you with the freedom to move around while staying connected. Balanced XLR outputs are provided for connection to pro audio equipment, and on-board isolation transformers and ground lifts help eliminate buzz and hum from ground loops to ensure a clean, noise-free signal. A level control allows for easy volume adjustments, along with a headphone output for testing and troubleshooting.

Specifications

Audio circuit type Bluetooth A2DP Transceiver with Audio Line Drive
Frequency response 20Hz - 20kHz
Dynamic range 90dB
Total harmonic dirstortion 0.01%
Output impedance 300 Ohms (nominal)
Bluetooth compliance Bluetooth 2.0 W/EDR
Power USB Mini connector (power only)

(For full specifications see manufacturers product site under "links" tab)

 

Buy
Radial ProAV1
R800 1112 00

Passive Multimedia Direct Box

The ProAV1 provides you with the ability to connect almost any audio source to a PA system, while automatically summing stereo sources to mono to preserve channels and simplify the audio setup. Inputs are available via 1/4", RCA, 3.5mm stereo, and line-level XLR connections, giving you the ability to easily connect to smartphones, tablets, laptops, CD players, or even a +4dB line level output from a console or recording interface. Transformer isolation helps eliminate noise while maintaining a linear frequency response, and a mono balanced XLR output allows you to feed a recording interface or a PA system.

Specifications

Audio circuit type Passive, transformer based
Transformer Eclipse ET-DB2, 12:1 ratio
Number of channels Single channel (mono)
Frequency response 20Hz - 18,5kHz (±0.2dB)
Dynamic range 128dB
Total harmonic dirstortion 0.01% from 20Hz - 20kHz @ -10dB
Phase deviation 1° @ 100Hz; 8° @ 20Hz
Input impedance 140k Ohms, unbalanced
Output impedance 150 Ohms, balanced
Maximum input +18dB @ 20Hz
Power Passive - no power required

(For full specifications see manufacturers product site under "links" tab)

 

Buy
Radial ProAV2
R800 1115 00

Stereo Passive Multimedia Direct Box

The ProAV2 is an indispensable device for live sound engineers and audio-video technicians alike, with the ability to seamlessly interface nearly any device with a pro audio system. A 3.5mm stereo input jack and dual 1/4" and RCA connectors ensure that you won't ever be hunting around for adaptor cables, while ultra-quiet performance with transformer isolation helps eliminate hum and buzz from ground loops. The ProAV2 maintains stereo separation and exhibits linear frequency response from 20Hz to 20kHz, with balanced mic-level XLR outputs that allow you to send signals through a multichannel audio snake on stage or into two channels of a mixing console.

Specifications

Audio circuit type Passive, transformer based
Transformer Eclipse ET-DB2, 12:1 ratio
Number of channels Dual channel (stereo)
Frequency response 20Hz - 18kHz (±0.2dB)
Dynamic range 128dB
Total harmonic dirstortion 0.01% from 20Hz - 20kHz @ -10dB
Phase deviation 1° @ 100Hz; 8° @ 20Hz
Input impedance 140k Ohms, unbalanced
Output impedance 150 Ohms, balanced
Maximum input +18dB @ 20Hz
Power Passive - no power required

(For full specifications see manufacturers product site under "links" tab)

 

Buy
Radial Trim-Two
R800 1117 00

Passive Stereo Direct Box with Level Control

The Trim-Two allows you to connect any playback device and interface it with balanced pro audio equipment without signal loss or hum and buzz from ground loops. It features two transformers which isolate and balance the audio output from your source device, eliminating noise and allowing you to use long cable runs without signal degradation. A handy mono sum switch makes it easy to reduce the output channel count or send the same signal to two destinations at once, and an accessible level control gives you the ability to adjust levels in an instant. Multiple input connector types make it easy to hook up any consumer line level playback source, from laptops & smartphones to DJ equipment. The completely passive design means that you never have to worry about powering the Trim-Two, making it truly plug & play.

Specifications

Audio circuit type Passive, transformer based
Transformer Custom
Number of channels Dual channel (stereo)
Frequency response 20Hz - 20kHz (±0.2dB)
Dynamic range <100dB
Total harmonic dirstortion 0.009%
Phase deviation <10°
Input impedance 10k Ohms, unbalanced
Output impedance 2.8k Ohms, balanced
Maximum input +20dB @ 20Hz
Power Passive - no power required

(For full specifications see manufacturers product site under "links" tab)

 

Buy
Presenter
R800 8011 00

Presentation Mixer & USB Interface

The Presenter replaces typical audio mixers that include numerous complicated controls and knobs that rarely get used, instead opting for a simplified and intuitive layout that allows anyone to operate it and achieve high quality sound with minimal effort. An XLR mic input allows you to connect a podium microphone and provide it with phantom power. The mic signal can then be adjusted using three powerful EQ controls to tailor the frequency response. A Program input level controls the volume of the USB input or the 3.5mm jack on the front of the unit, which allows you to connect the outputs of your laptop, smartphone, or MP3 player and blend it with the signal from the microphone. XLR outputs provide balanced feeds for a set of powered speakers, making it an all-in-one portable solution for any speaking engagement.

Specifications

Audio circuit type Active Preamplifier Circuit with digital to analog input conversion
Number of channels Two channels
Frequency response 20Hz - 20kHz (-0.4dB/0dB)
Dynamic range +91dBu
Gain +52dBu
Total harmonic dirstortion 0.004% @ 20Hz; 0.004% @ 1kHz; 0.004% @ 10kHz
Intermodulation dirstortion 0.003% @ 0dBu; 0.01% @ -10dBu; 0.03% @ -20dBu
Phase deviation -28° @ 20Hz; -1° @ 1kHz; +2° @ 20kHz
Input impedance 10k Ohms
Output impedance 2.74k Ohms
Noise -84dBu
Maximum input +7dBu
Power 5V USB

(For full specifications see manufacturers product site under "links" tab)

 

Buy
Radial JPC
R800 1026 00

Active Direct Box for Laptop Computers

The JPC is a stereo direct box that is easy to use with practically any consumer electronic device. It utilizes active buffers and transformer isolation to create a hybrid circuit that blocks ground loops and reduces system noise, along with AC blocking capacitors to prevent any audio system noise from bleeding back into the computer. The choice of ¼", RCA and 3.5mm input connectors make it easy to interface with all types of unbalanced audio sources such as computers, smartphones, and tablets, and the outputs are XLR balanced mic level to feed snake systems and PAs. Powering the JPC is accomplished via 48V phantom from a mixing console, allowing the JPC to be used in concert environments without requiring an external power supply.

Specifications

Audio circuit type Unity Gain buffers and inverters using low noise high end audio grade operational amplifiers
Number of channels Two channels
Frequency response 20Hz - 20kHz (±2dB)
Dynamic range 111dB
Total harmonic dirstortion 0.01% @ -15dBu output
Intermodulation dirstortion Less than 0.15% at any level below clipping
Phase deviation +29° @ 20Hz; -5° @ 1kHz; -80° @ 20kHz
Input impedance 10k Ohms
Output impedance 600 Ohms
Equivalent input noise -94dBu
Noise -97dB below 0dBu output
Maximum input +17dBu
Power 48V Phantom Power (each channel requirers 48V phantom)

(For full specifications see manufacturers product site under "links" tab)

 

Buy
Radial StageBug SB-5
R800 0150 00

Compact Stereo Laptop Direct Box

The StageBug SB-5 provides an easy to use professional interface for connecting any mobile playback device to a mixer or PA system, with a built-in cable and 3.5mm stereo plug to connect directly to your laptop, smartphone, or tablet. Inside, a pair of custom wound transformers isolate the signals to prevent hum and buzz, and balance the audio to feed long cable runs without noise. Left and right 1/4" TRS outputs are provided for stereo operation, or a mono XLR output can be used to save channels on the PA system. The SB-5 works without any power required, and features additional ground lift and pad switches to eliminate ground loop noise and prevent distortion from high output audio sources.

Specifications

Audio circuit type Passive, transformer based
Number of channels Two channels
Frequency response 20Hz - 20kHz (±1dB)
Dynamic range 100dB
Total harmonic dirstortion 0.01% @ 1kHz
Phase deviation 2° @ 100Hz; 5° @ 50Hz
Input impedance 40k Ohms, unbalanced
Output impedance 2.8k Ohms, balanced
Maximum input +20dB
Power Passive - no power required

(For full specifications see manufacturers product site under "links" tab)

 

Buy

The product has been added to your shopping cart Show shopping cartCheckout