Rolls MX422 Manual de Usario

Rolls consola de mezclas MX422

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MX422
Field Mixer
Quick Start Guide
ROLLS CORPORATION
SALT LAKE CITY, UTAH
4/12
POWER
LEFT
OUTPUT
MONITOR
INPUT
RIGHT
OUTPUT
AUX
INPUT
- 30 dB
LINE
phan low cut
1234
trim
INPUT
phan low cut
trim
INPUT
phan low cut
trim
INPUT
phan low cut
trim
INPUT
BATTERY
SELECT
MODEL MX422
SERIAL NUMBER
12 VDC
+
-
PUSH PUSH PUSH PUSH
NOTE: THIS MANUAL ASSUMES THE USER HAS A WORKING KNOWLEDGE OF AUDIO ELEC-
TRONICS, BALANCED AND UNBALANCED CONNECTIONS, AND PROPER SIGNAL LEVEL
SETTINGS.
INTRODUCTION
Thank your for your purchase of the Rolls MX422 Field Mixer; Professional ENG mixer.
Please read and review this manual carefully as it contains important information
regarding the proper use and care of the MX422.
INSPECTION
1. Unpack and inspect the MX422 box and package.
If obvious physical damage is noticed, contact the carrier immediately to make a
damage claim. We suggest saving the shipping carton and packing materials for safely
transporting the unit in the future.
2. Please visit our website at www.rolls.com and click on the Register Your Warranty
Here button, or complete the Warranty Registration Card and return it to the factory.
TABLE OF CONTENTS
Introduction 1
Inspection
Table of Contents
Hearing Safety Warnings
Features 2
Speci cations
Quick Start Guide 3
Description
Front Panel 4
Rear Panel 5
Connection 6
Rear Panel Connections
Front Panel Connections
Operation 7
Schematic 10
HEARING SAFETY WARNINGS:
While special attention has been given to your safety and hearing protection, the operator
determines proper and safe operating levels.
Please note the following:
- Always turn down the PHONES level control before plugging in your headphones.
- Always operate your headphones at the lowest practical level.
- Be especially cautious in unknown or widely varying environments.
1www.rolls.com www.rolls.com 10
SCHEMATIC
2
www.rolls.com
9www.rolls.com
SPECIFICATIONS
Input Impedance: Mic: 10K Ohms XLR balanced
Source:
22K
Ohms
RCA
Limiter Threshold: -5 dB to o
fully clockwise: No Limiting
Setup Frequency: 1 kHz
Slate Frequency: 20 Hz
Output Attenuator: -30 dB
Self Noise: -57 dB maximum
-90 dB typical
Max Gain: +65 db
S/N Ratio: 115 dB
THD: .05%
Frequency Response: 20 Hz - 30 kHz | +0, -3 dB
Low Cut: 100 Hz
Trim Range: 0 to + 38 dB
Max Input: 0 dBV
Current Draw: 45 mA with no Phantom Power or Signal.
Phantom Power: +48 VDC
Typical Batery Life: 6 Hrs. (2 mics, phan on, 1 headphone)
Connectors: 4 ea. Female XLR, 2 ea. Male XLR, 3 ea. 1/4 , ”
1 ea. 1/8” (3.5mm), 1 Center Negative power jack.
Power: VDC / 200 mA min.
Size: 9.5” W x 7.25 D x 2.375 H” ”
Weight: 4 lbs
HEADPHONE/EARPHONE MONITORING
PLEASE NOTE: The MX422 has very loud headphone and earphone circuitry. Be sure
to turn down the Phones level control before selecting the Source and putting your
headphones or earphones on to prevent accidental hearing damage.
HEADPHONE/EARPHONE SOURCE SELECT
When monitoring for recording, you typically will listen to the signal from the Main
Outputs. Leave the SOURCE button in the out position to monitor the Main Output
signal.
Occasionally, you’ll need to listen to an alternate signal - i.e. a remote truck or record-
ing engineer. Their signal is generally connected to the Monitor Input jack. Press in the
SOURCE button to listen to the signal on the Monitor Input.
OUTPUTS
The MX422 is a two-bus mixer with two individual balanced male XLR output jacks.
Each output is isolated providing excellent signal connectivity and noise performance.
These outputs are generally connected to a recording device or other input looking for
a line-level signal. In the event you need to connect the MX422 output to a mixer’s Mi-
crophone Input, press in the Output Level select switch to -30 dB. This way the MX422
output is attenuated by 30 dB, and will be more compatible with an input looking for a
microphone level signal.
MASTER LEVEL CONTROL
The front panel Master Level control adjusts the overall output level of the Left and
Right outputs. The gain range of the Master Level is from complete attenuation (no
output signal) to +12 dB of gain. Ideally, the Master Level should be set as close to the
detent as possible, providing you with the maximum amount of variance and head-
room.
POWERING
The MX422 features a unique and useful battery scheme. Two separate battery com-
partments have been provided on each side of the unit. In the event of battery voltage
loss during recording, the rear panel BATTERY SELECT switch may be moved to the
other position to select the second set of batteries. This is achieved without any signal
loss!
We recommend using 9V alkaline type batteries, however Lithium or NiMH batteries
work as well. To check the status of the selected battery set, press and hold the front
panel BATT TEST button.
For AC power, Rolls provides the model # PS27s VDC supply to power the MX422.
FEATURES
- Four servo-balanced XLR Inputs
- Two transformer-balanced XLR Outputs
- Switchable Output Level ( Line level, or -30 dB pad)
- 1/4” TRS Stereo Monitor Input and Auxiliary Input
- Switchable 48 Volt Phantom Power for each input
- Switchable 100 Hz Low Cut  lters for each input
- Two sets of battery compartments, never lose power
- Level and Pan controls for each channel
- Built in Limiter with variable Threshold control
- 20 Hz Slate tone with Slate Microphone included
- Switchable 1 kHz setup Tone
- Calibrated VU meters
- 1/4 and 1/8” ” (3.5mm) Headphone/Earphone Outputs with selectable Source
Input (Main mix buss or Monitor input),and Level control
- Canvas case included
- 6 hour battery life (with 2 condenser mics using phantom power and head
phones attached, constant use).
- Rolls PS27 external power supply included

Especificaciones del producto

Marca: Rolls
Categoría: consola de mezclas
Modelo: MX422

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