The Unika DI-USB is a high-resolution stereo direct box designed to convert sound files from a laptop computer, it is a fully USB 2.0 compliant, 24bit digital to analog audio converter and also a direct input that lets you interface a high impedance (Hi-Z) audio output with professional low impedance (Low-Z) PA and recording systems.
In the case of the DI-USB Box, the digital audio signal is converted to analog and feeds directly into the direct box circuit to produce Low-Z balanced left and right stereo signals.
The built in preamp allows you to adjust the output level from mic-level to line-level and enables the DI-USB Box to connect directly to mixing consoles, power amplifiers and self-powered speakers alike. The DI-USB Box ensures the digital signal is delivered to the PA as faithfully as possible.
The DI-USB is a high-resolution stereo digital audio converter (DAC) and direct box that is designed to connect to any computer system to seamlessly transfer digital audio to analog.
A professional Hi-Z direct input is also equipped, this is most commonly used with guitar pickups or keyboards, it also can be fed either from a linelevel output from the head (pad set to -20dB) or from the amplifier power output. A stereo pair of balanced XLR audio outputs with adjustable level control then feeds the signal to a microphone preamplifier, PA system, mixing console or even a powered speaker!
Made for plug and play simplicity, the DI-USB will automatically be listed as an available sound card in the audio settings in all popular operating systems,including Windows 7/8, Windows 10 and Mac OSX.
Connection to a computer is accomplished through a standard USB type-B port. Digital-to-analog conversion can be monitored on headphones through the 3.5mm analog output jack to check signal quality and level before connecting to a sound system. Two isolated output transformers are equipped to eliminate any hum or buzz caused by ground loops. To further reduce susceptibility to noise, this is augmented with a ground lift switch that lifts pin-1 on both XLR jacks.
．Stereo USB Laptop Direct Box.
．High impedance direct input for electronic musical instrument signal feed.
．High performance 24bit digital audio converter .
．Ready to use without the need of a driver .
．Standard USB type-B port for connection to computer .
．3.5mm analog headphone output to check signal.
．Level control for outputs and headphone.
．The direct input signal will be mixed to the USB stereo signal at the output stage.
．Selectable 3 steps attenuator for Hi-Z direct input.
．Accept power from 9V battery, +20V to +48V phantom power or 5V from USB.
．2 channel XLR Balanced Low-Z output with isolation transformer .
|USB Compliance||USB 2.0 full speed, type B connector|
|Bit Depth||24bit / 16bit|
|Sampling Rate||44.1KHz / 48KHz auto sensing|
|Sound File Compatibility||WDM, MME, Core-Audio, ASIO and DirectSound|
|Software Compatibility||Vista/Win7/Win8/Win10 and Mac OSX|
|Frequency Response||20Hz to 20KHz，+1/-1 dB|
|Noise Floor||<-90dBu, unweighted 20Hz to 20KHz.|
|Total Harmonic Distortion||Less than 0.008% at 1KHz, 0dBu output|
|Hi-Z Direct Input||Unbalanced, XLR/¼”TRS combo jack.
(Pin-2 Hot, Pin-3&1 Ground).
|Link Output||Unbalanced, Parallel link output ¼”TRS jack
for feeding to other equipment.
|Direct Input Attenuator||At 0dB||At -20dB||At -40dB|
|Direct Input Impedance||1 MΩ||47KΩ||47KΩ|
|Max. input level before Clip||+9dBu||+29dBu||+49dBu|
|Output Impedance||200Ω nominal, Transformer Balanced.|
|Analog output||Balanced transformer isolated
(XLR-M, Pin-1 Ground, Pin-2 Hot, Pin-3 Cold)
|Headphone output||3.5mm TRS,
(Tip-Left Ch. Ring-Right Ch., Sleeve-Ground)
|Level control||Variable, works on headphone and XLR outputs|
|Ground lift||Lifts pin-1 on both XLR outputs|
|DC Power||derives power from USB, plug-in 9V battery or
+20V to +48V Phantom power
|Finish||Durable powder coat|
|Size (H×W×D)||158 x 112 x 46 mm|
|Construction||14 gauge steel cabinet & chassis|