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Rolls RM70 User Manual

Rm70 mic/source selector

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The RM70 is a single rack space mixer designed for the install/contractor market. It

is ideal for small clubs, restaurants, churches, or schools. The unit mixes three bal-
anced microphones with five stereo sources to mono or stereo balanced Main Out-
puts.

The XLR Microphone Inputs have Mic/Line level switches, a Mic/Loop Insert jack,

and individually switchable +12 VDC phantom power. Priority talkover is available
on one microphone for paging. When this function is engaged, the signal at Mic One
temporarily mutes the source signals - the other two mic signals are still present.

A Music-On-Hold function has been included for connection to an telephone

system. The signal present at Source 3 Input will be sent to the Music On Hold screw
terminal outputs. A Music On Hold level control has been provided to adjust the
volume of this function.

Each Microphone input has a level and tone control, and Bass and Treble controls

have been provided for all the sources. A Master Output Level control adjusts the level
of all mixed signals.

A Remote Volume output jack is provided for connection to a 100K ohm linear

taper potentiometer and used as an external master level control.

FEATURES:
• Three XLR Microphone Inputs
• Individually switchable phantom power
• Five Stereo Source Inputs, Four RCA and one front panel stereo 3.5mm
• Tone controls for each Mic Input / Bass and Treb

T

T

le controls for the Source Inputs

• Music-On-Hold function with rear-panel Level control
• 1/4" TRS Mic Insert jack

SPECIFICATIONS

Input Impedance:

Mic:

600 Ω XLR balanced

Line:

22K Ω

Source:

22K Ω gold plated RCA

Mic/Loop:

22K Ω 1/4" TS unbal.

Max Input Level:

Mic:

-14 dBV Mic level

+20 dB Line levl

Source:

24 dBV

Max Gain:

Mic:

60 dB

Source:

26 dB

In/Out Connectors:

3: XLR, 4: Stereo RCA, 3: 1/4", 1: 3.5mm,

1 screw terminal

Phantom Power:

+12 VDC

Output Level:

+17 dBV max

Output Impedance:

51 Ω

Phase Shift:

<10 degrees, 20Hz to 20 kHz

Tone Controls (Sources):

+/-12 dB 100 Hz Bass

+/-12 dB 11kHz Treble

Tone Controls (Mic):

-3dB; 300 Hz C.W. 4 kHz C.C.W.

Tone Shelving Slope

6 dB / Octave

Max S/N ratio:

96 dB

Nose Floor:

- 80 dB

THD:

<.025%

CMRR:

>52 dB (Mic)

Size:

19" x 1.75" x 6"

(48.3 x 4.5 x 15 cm)

Weight:

5 lbs. (2.3 kg)

ROLLS Coporation

5968 South 350 West, Salt Lake City, UT, 84107

(801) 263-9053 FAX (801) 263-9068

[email protected] • www.rolls.com

RM70 Mic/Source Selector

10/31/06