Rolls RM70 Leaflet

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

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

info@rolls.com • www.rolls.com

10/31/06