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Audio Design Associates
www.ada-usa.com
Pro Setup Level Three: Calibrating Channel Levels
Level calibration requires independent adjustment of the output level for each of the channels of the
Suite 7.1 so that all channels have the same relative signal strength from your listening position. The
Suite 7.1 lets you program its internal noise generator to advance from channel to channel sequentially
or manually. If you wish, you can calibrate your system with the aid of a sound pressure level (SPL)
meter such as the Realistic Sound Level Meter (Radio Shack catalog # 33-2050). When you use an
SPL meter for calibration, you should hold it upright directly in front of your head and make adjustments
while you are seated in your listening position. If an SPL meter is unavailable, you can still adjust levels
by ear with adequate results. You can store as many as four preset speaker levels into memory recall to
accommodate different listening positions.
To Set Channel Levels Manually with the Internal Noise Generator:
1. Press and hold the Mode knob until the display changes to the Tone, Balance, and Volume recall.
2. Rotate the Mode knob until the cursor is flashing over the P in PRO SETUP.
3. Press the Mode knob. The display will change to the Pro Setup menu.
4. Rotate the Mode knob until the cursor flashes over the L in LEVELS.
5. Press the Mode knob. The display will change to the speaker level menu with the cursor flashing
over the N in NOISE.
6. To manually set the speaker levels one at a time, rotate the Input knob until the cursor flashes over
the first letter on any of the channels. (We recommend starting on the left channel.) You will see
an asterisk next to NOISE * indicating that the noise generator is on. Note: Rotating the Volume
knob will immediately turn off the noise generator.
7. Rotate the Input knob to adjust individual channels to 75 dB on an SPL meter. (Make sure the
meter is set to C weighting and slow response time.) The noise generator will not advance to the
next channel until you are finished setting the channel level.
8. Repeat the above level adjustment procedures for all channels.
To Set Channel Levels Sequentially with the Internal Noise Generator:
1. Press and hold the Mode knob until the display changes to the Tone, Balance, and Volume recall
setup.
2. Rotate the Mode knob until the cursor is flashing over the P in PRO SETUP.
3. Press the Mode knob. The display will change to the Pro Setup menu.
4. Rotate the Mode knob until the cursor flashes over the L in LEVELS.
5. Press the Mode knob. The display will change to the speaker level menu with the cursor flashing
over the N in NOISE.
6. To sequentially set the speaker levels one at a time, rotate the Input knob until the cursor flashes
over the first letter on any of the channels. (We recommend starting on the left channel.) You will
see an asterisk next to NOISE * indicating that the noise generator is on. Note: Rotating the Volume
knob will immediately turn off the noise generator.
7. Rotate the Input knob to adjust individual channels to 75 dB on an SPL meter. (Make sure the
meter is set to C weighting and slow response time.) The noise generator will not advance to the
next channel until you are finished setting the channel level.
8. Repeat the above level adjustment procedures for all channels.
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