User guide

Precision 8 OPERATION MANUAL

UP-AND-RUNNING IN A HURRY

1. Read the “Safety and Operating Precautions” on page 2 of this manual.

2. Connect to 120VAC, 60 Hz power sources only. (Consult factory for other options)

3. After making sure the main power switch is off, connect the AC power cord.

4. Connect output signal cables between PRECISION 8 and the analog line level

inputs of your recorder, mixer, signal processor, etc. Use either the individual 1/4”

TRS or DB25 eight-channel balanced output connectors. See the section

“Connections” for wiring details.

5. Connect mic cables to MIC 1 through MIC 8 as needed.

6. Turn on the AC power.

7. Set PEAK REFERENCE selector to +26.

8. Set 48V and φφ buttons as appropriate on each channel.

9. Depress the RESET button to clear Peak-Hold indicators.

10. Adjust Gain controls for adequate signal level as indicated on the PRECISION 8

level indicators or on the level indicators of the device to which it is connected.

If you’re using the DI’s for electric instrument input:

1. Connect your instrument cables to Direct In 1 and Direct In 2 on the rear panel. The

Direct In jacks are located within the same connectors as MIC 7 and MIC 8. Simply

plug your 1/4” phone plug into the center portion of the desired connector. NOTE:

DO NOT use TRS plugs for these inputs as the DI will not function correctly.

2. Set φφ buttons as appropriate.

3. Adjust DI-1 or DI-2 Gain controls for adequate signal level as indicated on the

PRECISION 8 level indicators or on the level indicators of the device to which it is

connected.

If you’re using the M/S Decoder:

1. Connect the cardioid or omni MID mic to MIC 1 input.

2. Connect the figure 8 SIDE mic to MIC 2 input. Face the SIDE mic toward the left

side of the sound field (perpendicular to the axis of the MID mic). See Figure 1.

3. Depress the MID-SIDE ON button. “Right” signal is routed to Channel 1 output. “Left”

signal is routed to Channel 2 output.

4. Adjust the Channel 1 gain control for adequate mono signal level.

5. Adjust the Channel 2 gain control to vary the image width as desired.

6. See the section “More About M-S Decoding” for more information.

Figure 1

M-S microphone orientation

MID

SIDE