Wisdom Wands SC-1 owner manual

Trim calculation table

Using identical amps

disc that had the appropriate pink noise signals, such as the 5.1 Audio Toolkit DVD (http://www.audiotoolkit.com/).

Simply turn off the power amplifiers that drive the planar magnetic sections, and turn on the noise sequencer. Measure the volume using a dB SPL meter (C- weighted, slow) and write down the results on a channel-by-channel basis. (The $30 Radio Shack dB SPL meter is sufficient for this measurement, although any RTA will also measure dB SPL.)

Then repeat the process with the woofer amps turned off and the planar amps on. Subtract the planar number from the woofer number and enter it in the cor- responding channel’s drop-down menu. The table below may be used to orga- nize your measurements.

Channel	Woofer level	Planar level	Trim Value
Sample only	85	90	85 – 90 = -5
Left Front
Center Front
Right Front
Right
Right Back
Left Back
Left Surround

Once the trim values have been entered, click the “Save Speaker Trim” button to download them to the SC-1.

Optionally, your installer may also save the basic speaker configuration at this point to an XML file on your PC’s hard disk. Doing so saves having to repeat the process if he ever needs to set up another SC-1 with the same associated equip- ment, as might happen if your system were damaged in an thunderstorm. This XML file would be loaded by the “Load Config From File” button on the Basic System Description page.

If you use the same amplifiers (or amps that have identical input sensitivities and gain) for both the woofer and planar sections, then the only difference that needs to be accounted for is the difference in sensitivity in the speaker sections themselves. Those figures are supplied in the table below.

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