Fig. 1
OPERATION
DIP SWITCH SETTINGS
• If a microphone requires phantom power, move the Mic channel’s corresponding
PHAN DIP switch to the down position. This applies 12 volts dc phantom power to
the indicated microphone.
• Talkover switch 1 (T.O. 1), when in the down position, all program material on all
inputs will be “ducked” or muted when a signal is present at Mic 1.
This function is used for paging.
• Talkover switch 2 (T.O. 2), when in the down position, Source 1,2, and 3 will be
“ducked” or muted by the signals at Source 4.
This function is for jukebox priority. With a jukebox connected to Source input 4,
and the Talkover switch 2 on (down), the other Source input signals such as
background music, will be muted and only the jukebox will be heard.
• The Mono/Stereo switch selects the output mode. When the switch is up, the unit
is in stereo mode. When the switch is down, the stereo signals are mixed to mono
and sent to both the Right and Left Main output jacks. Either jack can be used as
a mono output.
Adjust the Microphone levels for maximum input signal without clipping, and for a
comfortable listening level. Adjust each Source level for a desired listening level.
CONNECTION
Connect low impedance microphones to the Mic inputs. If a paging microphone is
being used, connect it to Mic Input 1 so it may be used with the Talk Over function.
Connect source signals such as CD players, cassette players or video players to
the RCA Source Inputs. If a jukebox is being connected, and you want its signal to
mute the other source signals, connect it to Source input 4.
Remote Volume Control
To control the overall volume of the RM67 in a remote location, wire a 100K ohm
Linear Taper potentiometer to a 1/4” Tip-Ring-Sleeve plug as shown in Fig. 1.
Mic Insert
To connect a signal processor to the RM67 microphone signal(s), use an insert
plug, or cable wired as shown in Fig. 2.
Connect the Main Right and Left outputs to your power amplifiers. The RM67
output jacks will accommodate balanced or unbalanced connections. For unbal-
anced operation use 1/4” Tip Sleeve jacks, for balanced operation use 1/4” Tip
Ring Sleeve jacks. If a 1/4” TRS to XLR cable is needed, wire the Tip of the 1/4”
jack to pin 2 of the XLR, the Ring to pin 3, and the Sleeve to pin 1 or the shield.
Mute
To mute all audio, connect an RCA plug to your muting circuitry. When the tip is
shorted to the ground - all audio is muted.
Connect the RM67 to a properly grounded AC outlet.
3
4
Sleeve
Tip
Ring
100 K Ohm
Linear Taper
Potentiometer
To Mic Insert
Fig. 2