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TECHNICAL INFORMATION
5.1 TROUBLESHOOTING
Many technical issues can arise when converting a standard computer into a digital audio workstation (DAW).
PreSonus can only provide support for issues that directly relate to the FireStudio interface and Studio One
Artist software. It may be necessary to contact the manufacturer of the computer, operating system, and third-
party DAW software to obtain additional technical support. PreSonus does not provide support for issues
regarding operating systems, additional hardware, or non-PreSonus software. Please check our Web site,
www.presonus.com, regularly for software information and updates, firmware updates, and technical support.
You also can get technical assistance by calling PreSonus at 225-216-7887 Monday through Friday between the
hours of 9 a.m. and 6 p.m. Central Time. PreSonus Technical Support can also be contacted during the same
hours via email at techsupport@presonus.com.
Pops and Clicks
Pops and clicks in either your input or playback audio are typically caused by momentary losses of
synchronization between the FireStudio and its clock source. This can be due to a FireWire card that is not
suited for FireWire audio devices or to a lack of CPU power or available memory. Try closing all unnecessary
programs, increasing the buffer size in the FireStudio Device window, and optimizing your operating system for
audio.
Pops and clicks exclusive to the digital inputs or outputs are typically caused when the FireStudio is not digitally
synced to the external digital device. If this is the case, ensure your FireStudio and external digital device are
Please consult your external device's user manual for details on syncing it to your FireStudio.
properly synced.
Flashing Sync Light
The FireStudio's Sync light flashes red and blue when it is not synced. Check the FireWire cable to ensure that it
hasn't become disconnected. If you are using an external digital device, and your Clock Source is set to the
correct digital input, set the sample rate in the Universal Control launch window to the same sample rate as that
of your master clock. If you are not using an external device to generate word clock, open the Universal Control
Launch window and set the Clock Source to "Internal."
Audio Dropouts
Audio dropouts can occur when the speed of your processor cannot process the audio buffer fast enough.
Increase your buffer size in the FireStudio Device window and try the different Operation Modes on the
Hardware Settings tab.
No Input Signal on Channels 1-8
1. Check your mic cable. In order to access the microphone preamp, you must use an XLR cable. The TRS
connection in the combo jacks for inputs 3-8 bypass the microphone preamp entirely.
2. Make sure the microphone does not require phantom power. If it does, press the 48V button.
Engaging phantom power will place +48V on channels 1-4. Ensure nothing will be damaged by
phantom power being present on the adjacent channel.
3. If there is no signal on Channel 1 or 2, make sure nothing is plugged into the line input on the rear of
the FireStudio. The return inputs on channels 1 and 2 take precedence over the combo input on the
front of the unit for channels 1 and 2. If a cable is plugged into the return input on channel 1, then the
mic/instrument input on channel one will be inactive until the cable is removed from return input 1.
44 | PreSonus 2008
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