Rolls MA1705 Manual de Usario

Rolls consola de mezclas MA1705

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MA1705

Mixer / 70 Volt Ampli er

Quick Start Quide

ROLLS CORPORATION

SALT LAKE CITY, UTAH

4/12

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,

1: 1/8” (3.5mm)

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)

SCHEMATIC

NOTE: THIS MANUAL ASSUMES THE USER HAS A WORKING KNOWLEDGE OF AUDIO ELECTRON-

ICS, BALANCED AND UNBALANCED CONNECTIONS, AND PROPER SIGNAL LEVEL SETTING.

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INTRODUCTION

Thank your for your purchase of the Rolls MA1705 Mixer / Ampli er. The MA1705 is a single rack

space mixer ampli er designed for restaurants, schools, churches, clubs etc. The unit provides

a compact and e cient way to mix up to three sources such as AM/FM tuners, CD players, and

video players with up to two microphones. Priority talkover is provided on Microphone Two for

paging, and on Source One for a jukebox, telephone, etc.

INSPECTION

1. Unpack and inspect the MA1705 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. For warranty information, and to register your MA1705 warranty, please visit our website at

www.rolls.com and click on the Register Your Warranty Here button.

DESCRIPTION

FRONT PANEL

Treble: Adjusts the high frequencies of the Source 2 and 3 signals only.

Bass: Adjusts the low frequencies of the Source 2 and 3 signals only.

IN 1: 1/8” (3.5mm) Tip-Ring-Sleeve input jack - parallels the rear-panel Source Input 1.

Source 1 - 3: Adjust the volume of input from the RCA Source Inputs.

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.

Output Level: Adjusts the output level of the MA1705 ampli er.

Power: LED indicating power is applied to the MA1705 and the unit is on.

Clip. LED indicating overload in the MA1705 ampli er.

REAR PANEL

120 VAC 50/60 HZ 15 VA: IEC Power Cord. Connect to a properly grounded AC source. NOTE:

REPLACE THE FUSE WITH ONLY THE PROPER RATED FUSE. INSTALLING A FUSE OTHER THAN THE

RECOMMENDED RATING WILL DAMAGE THE UNIT.

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.

CONNECTION

Inputs

Connect low impedance microphones to the Mic inputs. If a paging microphone is being used,

connect it to Mic Input 2 so it may be used with the Talk Over function. Connect source signals

such as CD players, cassette players or video players to the RCA Source Inputs. If a jukebox is

being connected, and you want its signal to mute the other source signals, connect it to Source

input 1.

For recording purposes, connect a stereo RCA cable to the Record Out jacks, and to your record-

ing device.

Amp Insert

To connect a signal processor to the

MA1705 signal, use an insert plug, or

cable wired as shown in Fig. 1. This

return signal is then sent to the output

level section of the ampli er.

Output

Connect 70 Volt speakers to the Output of the MA1705 by pressing in each of the spring-loaded

terminals and inserting the proper wire into the proper terminal i.e.; + = red, - = black.

To Amp Insert

OPERATION

DIP SWITCH SETTINGS (From left to right)

• If a microphone requires phantom power, move the Mic channel’s corre-

sponding PHANTOM POWER switch to the up position. This applies 12 volts

dc phantom power to the indicated microphone.

• Mic 2 Priority; when in the up position, all program material on Mic 1 and

Sources 2 and 3 will be “ducked” or muted when a signal is present at Mic 2.

Source 1 is left un-muted.

This function is used for paging.

• Source 1 Priority: when in the up position, Source 2,and 3 will be “ducked”

or muted by the signals at Source 1.

This function is for jukebox priority. With a jukebox connected to Source input 1, and the Talk-

over switch 2 on, the other Source input signals such as background music, will be muted and

only the jukebox will be heard.

FAULT PROTECTION

The fault protection in the MA1705 limits the current to the output stage. This mode is entered

whenever the output stage is called upon for too much power, it may also be fooled by imped-

ances lower than four ohms - which may cause the output stage to overheat and be irreversably

damaged.

BURN WARNING!

THE FRONT PANEL OF THE MA1705 IS THE HEAT DISTRIBUTION FOR THE OUTPUT STAGE. IF THE

UNIT IS OPERATED AT HIGH VOLUMES, IT MAY GET HOT.

SOURCE

MIC 2

PHANTOM

POWER

PRIORITY

◗

2 1

not used

Especificaciones del producto

Marca:	Rolls
Categoría:	consola de mezclas
Modelo:	MA1705
Color del producto:	Zwart
Pantalla incorporada:	Nee
Peso.:	4500 g
Ancho:	221 mm
Profundidad:	116 mm
Altura:	272 mm
Material de la carcasa:	Kunststof
Método de montaje:	Muur
Potencia de salida:	11 kW
Temperatura de almacenamiento:	-30 - 85 °C
Tensión de carga:	400 V
Corriente de salida:	16 A
yo codifico:	IK08
Enchufar:	Type 2
Frecuencia-de-entrada-de-CA:	50 Hz
Temperatura de funcionamiento (TT):	-25 - 40 °C
Humedad relativa de funcionamiento (VV):	5 - 95 procent
Número de fases:	3
Longitud del cable de carga:	6.35 m
Categoría de sobrevoltaje:	CAT III
Ubicación de la entrada de cables:	Zijkant