Rolls MA2152 Bruksanvisning

Rolls mikser MA2152

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MA2152
Mixer / Ampli er
OWNERS MANUAL
LIMITED WARRANTY
This product is warranted to the original consumer purchaser to be free
from defects in materials and workmanship under normal installation, use and
service for a period of one (1) year from the date of purchase as shown on the
purchaser’s receipt.
The obligation of Rolls Corporation under this warranty shall be limited
to repair or replacement (at our option), during the warranty period of any part
which proves defective in material or workmanship under normal installation,
use and service, provided the product is returned to Rolls Corporation, TRANS-
PORTATION CHARGES PREPAID. Products returned to us or to an authorized
Service Center must be accompanied by a copy of the purchase receipt. In the
absence of such purchase receipt, the warranty period shall be one (1) year from
the date of manufacture.
This warranty shall be invalid if the product is damaged as a result of
defacement, misuse, abuse, neglect, accident, destruction or alteration of the se-
rial number, improper electrical voltages or currents, repair, alteration or mainte-
nance by any person or party other than our own service facility or an authorized
Service Center, or any use violative of instructions furnished by us.
This one-year warranty is in lieu of all expressed warranties, obligations
or liabilities. ANY IMPLIED WARRANTIES, OBLIGATIONS, OR LIABILI-
TIES, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE,
SHALL BE LIMITED IN DURATION TO THE ONE YEAR DURATION OF
THIS WRITTEN LIMITED WARRANTY. Some states do not allow limitations
on how long an implied warranty lasts, so the above limitation may not apply to
you.
IN NO EVENT SHALL WE BE LIABLE FOR ANY SPECIAL, INCI-
DENTAL OR CONSEQUENTIAL DAMAGES FOR BREACH OF THIS OR
ANY OTHER WARRANTY, EXPRESSED OR IMPLIED, WHATSOEVER.
Some states do not allow the exclusion or limitation of special, incidental or con-
sequential damages so the above limitation or exclusion may not apply to you.
This warranty gives you specifi c legal rights, and you may also have other rights
which vary from state to state.
ROLLS CORPORATION
SALT LAKE CITY, UTAH
02/08
INTRODUCTION
Thank your for your purchase of the Rolls MA2152 Mixer / Ampli er. The MA2152
is a two 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. The power output section may be
connected to 8, or 16 ohm speakers, or a 25V or 70V system.
NOTE: THIS MANUAL ASSUMES THE USER HAS A WORKING KNOWL-
EDGE OF AUDIO ELECTRONICS, BALANCED AND UNBALANCED CON-
NECTIONS, AND PROPER SIGNAL LEVEL SETTING.
INSPECTION
1. Unpack and inspect the MA2152 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 War-
ranty Here button, or complete the Warranty Registration Card and return it to the
factory.
TABLE OF CONTENTS
Introduction 1
Inspection 1
Table of Contents 1
Description 2
Connection 3
Operation 4
Speci cations 5
Schematics 5 and 6
Warranty Back Cover
1 6
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5.3
DESCRIPTION
FRONT PANEL
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 chan-
nel. 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.
IN 3: 1/8” (3.5 mm) Input jack - parallels the rear panel Source 3 Input.
Bass: Adjusts the low frequencies of the Source 1 and 2 signals only.
Treble: Adjusts the high frequencies of the Source 1 and 2 signals only.
Left / Right Output: Adjusts that channel’s output level
Right/Left Clip: LEDs indicating clipping in the indicated MA2152 ampli er side.
Protect: Indicates that the ampli er has reached overload, and the MA2152 will
need to be turned o , and restarted.
Power: LED indicating power is applied to the MA2152 and the unit is on.
REAR PANEL
IEC Power Input / Fuse Holder: Connects to the enclosed IEC power cable.
Please replace fuse only with recommended rating.
4 - 8 Ohm / 25 Volt Output: The two red banana jacks are used when the
MA2152 is in Bridge/Mono, or 70V mode.
RECORD OUT: Stereo RCA jacks, contains all mixed signals before the Master
Level controls.
SOURCE INPUTS: Stereo RCA jacks, Channels 1 - 3, for connection to stereo
sources such as AM/FM tuners, cassette players, cd players, or video players.
LEFT/RIGHT AMP INSERT: 1/4” Tip-Send, Ring-Return insert jack.
DIP SWITCH: Contains the small switches for engaging Mic 1, 2 phantom power,
Source 3 Stereo or Mono, the priority (Talk Over) functions, and the Mono/Stereo
select.
MICROPHONE ONE and TWO: Balanced XLR inputs to be connected to dynam-
ic or condenser microphones.
BRIDGE SWITCH: This switch selects the output con guration; Bridge Mono, or
Stereo / Dual Mono.
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, 8: Stereo RCA, 3: 1/4” TRS, 1: Stereo 3.5 mm
4: Binding posts
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
S/N Ratio: 96 dBV
Priority Attenuation: 60 dBV
POWER AMP
Power Output, Stereo: 100 Watts RMS/Ch. 4 Ohms (Both channels driven)
70 Watts RMS/Ch. 8 Ohms
Bridged: 200 Watts RMS - 8 Ohms/70V
Output Matching: 4, 8, 16 Ohms, 25V Stereo, 70V Mono
THD: <.08%, (1 kHz @ 1 Watt)
Outputs: RCA Record Out, 5-Way binding post Power
Amp Outputs
Power Bandwidth: 60 Hz - 30 kHz, +/- 1 dB
Damping Factor: > 150
Slew Rate: 100 Volts/microSecond
Phase Shift: <10 Deg., 20 Hz - 20 kHz
Power: 120 VAC, 60 Hz 2.5A
Size: 19” x 3.5” x 7.5” (48 x 9 x 19 cm)
Weight: 12 lbs (5.5 kg)
SCHEMATIC
25
POWER AMP SECTION

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Kategori: mikser
Modell: MA2152

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