Measuring looped Ashby ceiling loudspeakers
Ashby Ceiling Loudspeakers can be looped using the Phoenix 5-pin connectors on the power and input panel, as shown in the figure below. Up to 3 Ashby-5C loudspeakers (2 looped), up to 2 Ashby-8C loudspeakers (1 looped), or 1 Ashby-8C plus 1 Ashby-5C may be driven from a single IntelligentDC Power Supply channel.
Ashby Loudspeaker Input Panel
Follow the procedure described in Step 1—Verify the IntelligentDC Power Supply.
Follow the procedure described in Step 2—Verify the Loudspeaker Input.
Follow the procedure described in Step 3—Verify the Cable.
Be sure to also verify the cables to be used for looping between loudspeakers.
Follow the procedure described in Step 4—Verifying the Loudspeaker Input Through the Cable.
Note
For Ashby ceiling loudspeakers that are looped together, the measured value of the loudspeaker input differs from what is stated in Step 4 — Verify the Loudspeaker Input Through the Cable. Each additional loudspeaker in the loop lowers the expected resistance. With two loudspeakers in the loop, you should expect resistance values to be half of what is stated in step 4. With three loudspeakers in the loop, you should expect resistance values to be one third of what is stated in step 4.