Owners Manual

2
INTRODUCTION
The USB Phono Plus
Project Series
is a high quality USB audio interface with a built-in phono
preamp. It acts as an interface between your computer and a wide variety of analog and digital
sources. The analog inputs are switchable between Phono and Line level signals and a Low Cut filter
removes rumble and wind noise while leaving the audio pristine. The front Gain Trim control and
Signal/Clip LED allow you to optimize the analog to digital converter for a wide range of input
sources. The front panel USB Monitor/headphone jack and the Optical Output on the rear panel can
monitor the audio output from your computer. The USB Monitor/headphone jack can also provide
zero latency monitoring of the input source for easy cueing of records and tapes. The built-in low
noise Phono Preamp circuit is highly accurate and precisely conforms to the RIAA standard. The Line
Out jacks are always connected to the input preamp signal for source monitoring or to allow use as a
stand-alone phono preamp.
Housed in an all aluminum black anodized case, the USB Phono Plus
Project Series
can be
powered by either an external power source or directly off the USB port, so remote recording is a
snap. An Optical TOSLINK Input and Output as well as an S/PDIF Input let you use the USB Phono
Plus
Project Series
as a digital audio to USB interface as well.
The USB Phono Plus
Project Series
is fully compliant with the USB 2.0 specification and uses
USB adaptive mode for playback and USB asynchronous mode for recording. The USB Phono Plus
Project Series
interface uses the standard “USB Audio CODEC”. This driver is built into most
modern operating systems, including most current versions of Linux. Since some details of how the
audio interface is set vary with different versions of Linux, the setup is beyond the scope of this
document. The main key in setup is to look for “USB Audio CODEC” as the recording source or
playback monitor output while the USB Phono Plus
Project series
is connected. No special
drivers are needed. We’ve included a CDROM containing the user manual and Audacity recording
software to get you started!
Key Features Include
• USB Connectivity to Desktop and Laptop Computers
• RIAA Accurate Low Noise Phono Preamp
• Up to 45 dB of Clean Gain
• Latency Free Monitoring
• S/PDIF or optical to USB and USB to Optical Interfaces Included
• Preamp Line Out Allows Use as a Stand-alone Phono Preamp
• Includes Audacity Recording Software
• Compact, Stackable all Aluminum Chassis
• Flexible Power from USB or External Power Supply
• Three Year Warranty