Optimizing your system's low-frequency performance – Revel LFO User Manual
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8
LFO Programming Software
User Guide
CONNECTING YOUR COMPUTER TO YOUR REVEL SUBWOOFER
Once you’ve installed the Revel LFO software in your computer you must establish a control connection between your computer and your Revel subwoofer(s).
1. Turn the subwoofer's Power switch to "On." (The Power LED will glow green.)
2. Connect the computer to the subwoofer's USB port using a USB cable.
IMPORTANT: If your system has more than one subwoofer, connect the computer to the subwoofer that is connected directly to the preamp/processor's
Subwoofer Out or LFE Out jack. Make sure this subwoofer is designated as "1" in the Subwoofer standalone/daisy-chain selector (see above). .
3. Launch the Revel
LFO
software.
4. Select the “Connect to Amplifi er” menu tab.
5. A dialog box will appear, presenting two options:
• If this is the fi rst time you are connecting your subwoofer(s) to the LFO software (as it will be for most users), select "PUSH Settings Into Amplifi er."
• If you have already used the LFO software to set up the connected subwoofer and you wish to save the settings, select "PULL Settings From
Amplifi er."
NOTE: In systems with multiple subwoofers you must close the Revel LFO software before connecting the USB cable to each subwoofer for
programming.
OPTIMIZING YOUR SYSTEM'S LOW-FREQUENCY PERFORMANCE
Using the LFO software to optimize your system's low-frequency performance consists of the following steps:
1. Obtaining and setting up the measurement hardware and software.
2. Measuring your system's low-frequency response in your listening room.
3. Selecting a target frequency response curve for your system.
4. Determining the corrective equalization required to bring your system as close to the target frequency response curve as is practical.
5. Applying ("pushing") the corrective equalization to your Revel subwoofer(s).
6. Measuring the results, making any required corrections and re-measuring as necessary to achieve the desired results.
OBTAINING THE MEASUREMENT HARDWARE AND SOFTWARE
There are several different audio measurement systems available.
AudioTools
Revel recommends using Studio Six Digital’s AudioTools audio measurement app (ver. 5.3 as of this writing) for iOS (iPhone/iPad) devices, which is
available at: https://itunes.apple.com/us/app/audiotools/id325307477?mt=8.
• If your iPhone/iPad has iOS 6 or later you can use your iOS device's built-in microphone to make the necessary audio measurements. (although with
considerably less accuracy than when used with a high-quality external test microphone).
• If your iPhone/iPad has an operating system earlier than iOS 6, you must purchase a 3rd-party test mic (see list below) to make the necessary audio
measurements.
• Your iOS device and the computer running the LFO software must both be joined to the same Wi-Fi network to be able to export your measurement
results from the iOS device into the LFO software.