ARX USB I O VSR
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USB-I/O Variable Sample Rate
ARX is excited to present the new ARX USB I/O VSR - a true Plug and Play USB 24 bit High Resolution digital/analog pro audio interface. VSR stands for Variable Sample Rate - which allows the unit to record and playback at three different sample rates: 44.1, 48, and 96 KHz
Plug and Play or Install ASIO Driver - your choice
The ARX USB I/O VSR installs as a fully compatible generic USB audio device. The default sample rate of 24 bit 44.1 KHz requires no special driver program installation on Mac OSX, Win XP, and Win7 or 8 - just plug and play.
To run the expanded Hi Res sample rates of 48 and 96 KHz, an ASIO driver is available for download from the ARX website - http://www.arx.com.au/drivers.htm.
Please make sure you have the USB I/O VSR connected to the computer before installing the driver.
Controls and Connectors
The front panel has Left and Right transformer balanced and isolated analog XLR Input and Output connectors that connect to all standard balanced analog Inputs and Outputs. On the rear panel there is a Type B USB connector, as well as a ground lift switch. Sample Rate LEDs indicate that the USB I/O VSR is connected and operating, and also which Sample Rate has been selected.
The USB I/O VSR features full transformer balanced Inputs and Outputs, providing the isolation required to eliminate earth loops / ground hum and other extraneous interaction noise and distortion.
Analog style headroom
Analog 0dB In = –18dB, FS Digital, providing Analog style headroom when recording in the digital domain. The signal then reverts to 0dB Analog Out, giving you the best of both worlds.
Plug and Play Option
We recommend running Win XP or later, or Mac OS X. Plug the USB I/O VSR into an unused USB port on the computer and it will be recognised as ARX Systems USB, and ready to use.
About Variable Sample Rate
The USB I/O VSR has a default sample rate of 44.1KHz, the same as used for audio CDs. This is the sample rate you get when you Plug and Play with the USB I/O VSR.
But, by installing the ARX ASIO driver you can sample the music at 48KHz or 96KHz, for even greater definition.
USB I/O VSR Specifications
Broadcast standard USB Audio Interface
Connector USB type B port
Codec High Resolution 24 bit, 44.1 KHz Plug and Play; switchable sample rates of 48 and 96 KHz with ASIO driver
Selectable Buffers :
Streaming Buffer 1mS, 2mS, 4mS, 8mS, 16mS, or 32mS
ASIO Driver http://www.arx.com.au/drivers.htm
Important - make sure the USB I/O VSR is connected to the computer before installing the Driver
Maximum Analogue Input Level +12dB
Digital recording and playback level for 0dB analog in –18dBFS (full scale)
Maximum Analog Output Level +12dB
Input Impedance 10 KOhms Transformer Balanced
Output Impedance 300 Ohms Transformer Balanced
Maximum Input Level Nominal 0 dB
Maximum Output Level Nominal 0 dB
Input/Output Noise USB - System dependent
Frequency Response 20 - 20 KHz ± 0.5 dB
Power Operating current via USB Port 80mA
Note: The sample rate will default to 44.1 Khz if ARX ASIO Driver is not used.