DESCRIPTION
FRONT PANEL
MIC ONE
MIC TWO
tone
tone
SOURCE
ONE
SOURCE
TWO
SOURCE
THREE
TREBLE
BASS
0 10
OUTPUT
LEVEL
pwr
clip
MA1705
Mixer /
70 Volt Amplifier
- +
- +
0 10
0 10
0 10
0 10
0 10
Mic 1, 2: Adjust the level of signal from the corresponding Mic Input.
TONE 1, 2: Adjusts the frequency content of the microphone signal in the channel.
When the control is turned counter-clockwise, the high frequencies are cut, when
the control is turned clockwise, the low frequencies are cut.
Source 1 - 3: Adjust the volume of input from the RCA Source Inputs.
Bass: Adjusts the low frequencies of the Source 2 and 3 signals only.
Treble: Adjusts the high frequencies of the Source 2 and 3 signals only.
Output Level: Adjusts the output level of the MA1705 amplifier.
Power: LED indicating power is applied to the MA1705 and the unit is on.
Clip. LED indicating overload in the MA1705 amplifier.
REAR PANEL
3
2
1
RECORD
OUTPUT
MIC TWO
MIC ONE
SOURCE 1
MIC 2
on
SOURCE INPUTS
POWER AMP
INSERT
OUTPUT
WARNING:
DO NOT EXPOSE THIS EQUIPMENT TO
RAIN OR MOISTURE.
NO USER SERVICABLE PARTS INSIDE.
MODEL MA1705
MADE IN USA
www.rolls.com
SERIAL NUMBER
1705 -
RISQUE DE CHOC - NE PAS ENLEVER
PHANTOM
POWER
PRIORITY
◗
2 1
not used
not used
OUTPUT: Spring-loaded terminal for connection to the speakers.
POWER AMP INSERT: 1/4” Tip-Send, Ring-Return insert jack for.
MICROPHONE ONE and TWO: Balanced XLR inputs to be connected to dynamic
or condenser microphones.
DIP SWITCH: Contains the small switches for engaging Mic 1, 2 phantom power,
and the priority (Talk Over) functions.
SOURCE INPUTS: Stereo RCA jacks, Channels 1 - 3, for connection to stereo
sources such as AM/FM tuners, cassette players, cd players, or a jukebox.
RECORD OUT: Stereo RCA jacks, contains all mixed signals before the Master
Level control.
SPECIFICATIONS
MIXER
Input Impedance:
Mic:
600 Ohms XLR balanced
Source: 22K Ohms RCA
Insert: 22K Ohms 1/4" TS unbal.
Max Input Level:
Mic:
-14 dBV Mic level Max
Source: 24 dBV
Insert: 24 dBV
Connectors:
2: XLR, 6: Stereo RCA, 3: 1/4" TRS, 1: 1/4” TS
Phantom Power:
+12 VDC
Max Gain:
Mic:
60 dBV
Source: 26 dBV
Tone Controls:
+/-12 dB 100 Hz Bass
+/-12 dB 11kHz Treble
Noise Floor:
Speaker Out: -67 dBV
Pre Out: -90 dBV
THD + Noise:
-82 dBV
S/N Ratio:
96 dBV
Priority Attenuation:
60 dBV
POWER AMP
Recommended Load:
70 Volt line (70 Watts maximum)
Frequency Response:
60Hz to 20 kHz
Size (W x H x D):
19" x 1.75" x 5" (48 x 4.5 x 12.7)
Weight:
5.5 lbs (2.5 kg)
2
5
