Lectrosonics R33 User Manual download pdf (Page 8)

Performer

5. R33 RECEIVER REAR PANEL (see figure 4)

The BAL MIC (balanced microphone) output, a switchcraft D3M connector, is the most commonly used output. It is

a low impedance (200 ohms, 100 millivolt), balanced output that is essentially the same as a microphone output. This

enables the user to place the R33 on stage close to the performer and connect to the stage mic box or snake.

The HI-Z BAL (balanced high impedance) output is a 1/4” phone output (1000 Ohms, 1 Volt) that can be used either

balanced or unbalanced depending on the phone plug that is used.

The TAPE output is an RCA phono output (1500 Ohms, 1 Volt) used to connect to a tape deck. Its output level is not

affected by the volume control.

The EXTERNAL ANTENNA input matches to a PL259 type connector (standard CB connector) and is used if the R33

is located in an enclosure or at a remote location where the supplied screw-in antenna will not work properly. Instruc-

tions for making a remote antenna are on pages 7 and 8.

The power supply input will be labeled CH12 INPUT on standard R33A receivers or CH40 INPUT on R33B receivers

that have a built in rechargeable battery pack. The external power supplies are available to match foreign wall outlets

and voltages. To connect the power supply, run the plug end of the cable through the nearby strain relief before insert-

ing the plug into the R33.

The battery pack in the R33B receiver will provide up to 16 hours of operation under typical operating conditions. The

CH40 charger will recharge the battery from full discharge in 14 hours and also allows operation from an AC outlet. The

battery cannot be overcharged.

The reasons for using an external power supply are the elimination of RF hum loops in the supply cord and the elimina-

tion of audio ground loops between the mic box on the stage and the control board at the end of the snake. The R33 is

not tied to ground by a supply cord but can still meet UL and CSA safety requirements by using approved, external

power supplies that don’t require grounding.

LECTROSONICS, INC.

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Lectrosonics R33 User Manual Page 8