Rolls RM83T Started Manual

OPERATION
CONFIGURING THE 1/4" INPUT JACKS AS DIRECT OUTPUTS
The eight 1/4" Input jacks come from the factory confi gured as line inputs and
are electrically mixed with the XLR jacks. They may be used together if desired.
To confi gure a channel's 1/4" jack as a Direct Out, fi rst remove the RM83T lid.
For each channel there are dual three-pin headers with shorting jumper on two
pins. The setting from the factory is on "IN". By moving the shorting jumpers to
the confi guration shown as "OUT" (one jumper up, the other down), the jack then
becomes a Direct Output.
CONFIGURING THE 1/4" INPUT JACKS AS INSERTS
To confi gure a channel's 1/4" jack as an Insert, fi rst remove the RM83T lid and
locate the corresponding channel's dual three-pin header. Move both shorting
jumpers down as shown below as "INSRT", the jack then becomes an Insert.
Direct Insert Input
Output
CONFIGURING THE OUTPUT FOR MIC OR LINE LEVEL
The RM83T ships from the factory with the XLR Main Output confi gured as Line
Level (+4 dB). To change this to Mic Level (-10 dB), carefully remove the lid,
locate the Mic/Line header which is near the Main Output jack. Move the two
jumpers from the Line Level position (shown below on the right), to the Mic Level
position (shown on the left).
Mic Line
Level Level
JUMPER DEFAULTS
The internal jumpers are confi gured from the factory as follows:
1/4" = INPUTS
MAIN OUT LEVEL = LINE LEVEL
75889 00830
6 2
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SPECIFICATIONS
Input Impedance:
Max Input Level:
Input Connectors:
Outputs:
Max Gain:
Tone Control:
Phantom Power:
Output Level:
Output Impedance:
Phase Shift:
Max S/N ratio:
THD:
CMRR:
Size:
Weight:
ROLLS CORPORATION
SALT LAKE CITY, UTAH
4/11
Eight Channel Mic Mixer
1 2 3 4 5
1/8"
+20 +20 +20 +20 STEREO +20
LEVEL TONE LEVEL TONE LEVEL TONE LEVEL TONE INPUT LEVEL
Mic:
1/4":
Bus Input:
Mic:
Line:
Mic:
Line:
DIP SWITCH DEFAULT SETTING:
JUMPER DEFAULT SETTING:
RM83T
6 7 8
MASTER
TRANS BALANCED
MIC MIXER
RM83T
+20 +20 +20 0 10 pwr
TONE LEVEL TONE LEVEL TONE LEVEL TONE LEVEL
600 Ω XLR balanced
10K Ω unbalanced
10K Ω unbalanced
+4 dBV balanced
+22 dBV
8: XLR, 8: 1/4" (Line), 1: RCA (Bus input)
XLR bal., RCA unbalanced Prefade out
60 dB
35 dB
12 dB Treble/Bass cut
+48 VDC
+22 dBV max
51 Ω
<10 degrees, 20Hz to 20 kHz
106 dB
<.01%
>120 dB (Mic)
19" x 1.75" x 6"
(48.3 x 4.5 x 15 cm)
6 lbs.
ALL OFF
1/4" JACKS AS INPUT
Start Guide