Measuring And Optimizing Your Speaker System - BLUE SKY AMC Instruction Manual

Behringer ECM8000. However, it is possible to use other high quality measurement
microphones, but the above are known to work fine, and are relatively inexpensive.
2) USB Audio Interface - the ART USB Dual PRE is the recommended USB audio interface
used for measurement. It is an inexpensive system with dual microphone preamps, dual
audio outputs, operates at 48 kHz and has a phantom power supply for the measurement
microphones. It uses the built-in driver for windows.
3) Microphone stand.
4) 2 - 1/4" TRS- to XLR male microphone cables. One can be short (1.5 ft) for the loop back
connection and one should be long enough to connect to the speaker.
5) XLR microphone cable for the measurement microphone

Measuring and optimizing your speaker system

Optimizing your system requires the following steps
1. Set up your microphone. (page 20)
2. Connect the USB-Dual Pre to the microphone, and to analog input 8 on the AMC rack
3. Set the USB audio interface is the default recording and playback device and it is set up
with the correct properties. (See page 21).
4. Connect a USB cable to the front of the AMC and computer and when ready start the AMC
control program. Go to the SRO Screen (page 23)
5. Setup your Target curves for each individual speaker with any customization that you may
need. (Page 24)
6. Load the preset you want to use to store the optimize values.
7. Set the gain on the AMC Remote for 0 dB.
8. If the AMC has a previous optimized EQ loaded that you want to remove hit the Clear EQ
9. Select one or more speakers on the SRO panel, and hit the Measure button. It is
recommended that you optimize the subwoofer after optimizing the other speakers.
10. Adjust the output on the back of the Dual Pre if necessary to get a consistent measurement
11. Once you have consistent measurements, you can click the Optimize button to optimize
the system. During the optimization process, the channel began optimized will automatically
pop up in a new window to show you the process. Once it was once it is done with that
speaker, the window will automatically close and the next speaker in the queue will pop in
Page 24