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INTRODUCTION:

 

 
 
The 

USB Dual Pre

 is a full-featured high quality dual portable preamplifier and computer interface 

packed into a compact rugged case. It is designed to work over a wide variety of applications from 
remote field recording to desktop/studio tracking. Each of the two low noise input channels has up to 
48 dB of clean gain with signal present and clip LED indicators. Inputs can be either XLR balanced or 
1/4-inch TRS. Each of the 1/4-inch TRS outputs is buffered low impedance balanced.  
 
The 

USB Dual Pre

 can be externally powered from the mains via a wide range of external power 

adapters, or from an internal 9 Volt battery, or from the USB bus itself, or any combination of these 
power sources. When running off of the battery alone, you should get in excess of 50 hours of opera-
tion when phantom power is off. Battery life drops to around 20 hours (depending on microphone) 
when phantom powering from the battery alone (still enough time to get through a session). 
 
The built-in low noise +48 Volt phantom power supply allows you to power up to 2 microphones as 
well as the preamplifier when running from any power sources including the USB bus. 
 
For monitoring, an 1/8-inch TRS mini headphone jack with level and monitor mix controls on the rear 
allow for latency free local monitoring of the inputs while recording as well as playback monitoring of 
the USB bus. The monitor mix is also routed to the ¼-inch TRS balanced outputs. This lets you use 
the 1/4-inch outputs as either a preamplifier out or as the monitor feed to your powered monitors. 
 
The USB interface is fully compliant with the USB 1.1 specification and uses USB adaptive mode for 
playback and USB asynchronous mode for record. It will work with the USB audio device drivers built 
into Windows 98SE/ME/2000/XP/Vista 32bit and Apple OS9.1/OSX computers with native USB 
support. No special drivers are needed. 
 
The compact black anodized all aluminum case with rubber sides makes for a rugged design. The 

USB Dual Pre

 will provide years of trouble free service and its high quality audio channels and 

versatile powering options make the 

USB Dual Pre

 the obvious choice in a wide variety of applica-

tions from Podcasting/Broadcasting to Tracking and Monitoring. 
 
With the 

USB Dual Pre

, your laptop, and a pair of quality microphones you can do some serious 

remote recording. 

 
 
 
Key Features Include:

 

 

  USB Connectivity to Desktop and Laptop Computers 

  Low Noise Fully Balanced XLR and 1/4-inch TRS  “Combo” Inputs 

  Up to 48 dB of Clean Gain 

  Built-in Low Noise +48 Volt Phantom Power Supply 

  Latency Free Monitoring Mix and Level Controls 

  Independent Channel Gain Controls  

  1/4-inch TRS Balanced Monitor and 1/8-inch Headphone Monitor Outputs 

  Includes Recording & Production Software 

  Compact, Stackable all Aluminum Chassis 

 

Flexible 3-way Power from USB, External Supply, or 9 Volt Battery 

 

 

Содержание USB Dual Pre

Страница 1: ...USB Dual Pre User s Manual...

Страница 2: ...t is not likely to be walked on stretched or pinched by items placed upon or against it Grounding Do not defeat the grounding and polarization means of the power supply Moisture To reduce the risk of...

Страница 3: ...rding as well as playback monitoring of the USB bus The monitor mix is also routed to the inch TRS balanced outputs This lets you use the 1 4 inch outputs as either a preamplifier out or as the monito...

Страница 4: ...an unbalanced source When the Gain control is at minimum this input can handle signals up to 6dBu The 1 4 inch Monitor Output jacks are active balanced with the Tip positive Ring negative and Sleeve g...

Страница 5: ...ows for more system bandwidth If you must use a hub it should be a powered USB 2 0 compliant hub for best results This is especially important if you plan on using multiple units for more channels of...

Страница 6: ...connected together there by forming a feedback loop This can accidentally create very loud and disturbing sounds Therefore Play Through is usually set to OFF as the default setting in both software an...

Страница 7: ...so that you can use the meters to set the overall input gain on each channel for best recording dynamic range and then trim the Monitor Mix and Level to the monitor system you are driving The red Cli...

Страница 8: ...nd Choose USB Audio CODEC Mac OS10 System Preferences Sound Choose USB Audio CODEC Your computer audio output Speaker is now set to be the USB Audio CODEC and playback audio is routed to the USB Dual...

Страница 9: ...e is a perfect solution to this problem letting you connect any microphones to your existing mixer or computer Operation is identical to what is covered above Once again portable laptop recording with...

Страница 10: ...t allow limitations of incidental or consequential damages so the above limita tion or exclusion may not apply to you This warranty gives you specific rights and you may have other rights which vary f...

Страница 11: ...utput Connection 1 4 inch TRS balanced 1 8 inch TRS headphone mini jack A D D A 16 Bit 44 1 kHz or 48 kHz USB selectable from computer 0 4 ms A D latency 44 1 kHz Computer Interface USB 1 1 compliant...

Страница 12: ...12 www artproaudio com E mail cserve artproaudio com USB Dual Pre 179 5004 102...

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