R.R. Amplifiers MLP4 User Manual

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R.R. Amplifiers

User manual

MLP4

Before using this unit, carefully read the sections entitled: "USING THE UNIT SAFELY" and

"IMPORTANT NOTES" (p. 2; p. 4). These sections provide important information concerning the

proper operation of the unit. Additionally, in order to feel assured that you have gained a good

grasp of every feature provided by your new unit, this User manual should be read in its

entirety. The manual should be saved and kept on hand as a convenient reference.

Version

Date

Auteur

V1.1

26-2-2021

Remco Ranschaert

in any form without the written permission of R.R.Amplifiers.

Table of Contents

Summary of Contents for R.R. Amplifiers MLP4

Page 1 R.R. Amplifiers User manual MLP4 Before using this unit, carefully read the sections entitled: “USING THE UNIT SAFELY” and “IMPORTANT NOTES” (p. 2; p. 4). These sections provide important information concerning the proper operation of the unit. Additionally, in order to feel assured that you have gained a good grasp of every feature provided by your new unit, this User manual should be read in its entirety.
Page 2: Using The Unit Safely
USER MANUAL MLP4 Using the unit safely INSTRUCTIONS FOR THE PREVENTION OF FIRE, ELECTRIC SHOCK, OR INJURY TO PERSON About WARNING and CAUTION Notice WARNING Used for instructions intended to alert the user to the risk of death or severe injury...
Page 3 USER MANUAL MLP4 WARNING CAUTION When cleaning the unit, only use a water Try to prevent cords and cables from • • moistened cloth. Do not use a wet cloth, or becoming entangled. Be good for your use other liquids, see Maintenance.
Page 4: Important Notes
USER MANUAL MLP4 Important Notes Power Supply Depending on the material and • temperature of the surface on which you Before connecting this unit to other devices, place the unit, its rubber feet may discolour or turn off the power to all units. This will help mar the surface.
Page 5: Additional Precaution
USER MANUAL MLP4 Additional Precaution Use a reasonable amount of care when using the unit’s buttons, switches, or other • controls; and when using its jacks and connectors. Rough handling can lead to malfunctions. R.R AMPLIFIERS...
Page 6: Table Of Contents
USER MANUAL MLP4 Table of Contents Using the unit safely ..............................2 Important Notes ................................4 Additional Precaution ..............................5 What’s in de box................................7 Introduction ................................... 8 Key Features ..............................8 Website ................................. 8 Top Panel Description ..............................9 Front connection Panel Description ........................
Page 7: What's In De Box
USER MANUAL MLP4 What’s in de box When you open the box, please check that al items are present. Please contact R.R.Amplifiers when something is missing. MLP4 • This User manual printed. • Tips & Tricks for best results Use a good quality power supply (isolated outputs) for you effects.
Page 8: Introduction
By using the MLP4 every effect will be treated as if it’s the only one in the chain. It will “see” and “feed” the same impedance, no matter how many effects are active. And only the active loop puts its effect into the signal chain.
Page 9: Top Panel Description
USER MANUAL MLP4 Top Panel Description Channel With this Dip-switches you can preset the midi channel (see table in 13 for settings) You need to reboot after adjusting de setting. 2. Buttons loop 1 -4 Select/monitor the loop. Press to activate. When a midi program change has been received, and one or more loops are selected, the Save button will blink.
Page 10: Front Connection Panel Description
USER MANUAL MLP4 Front connection Panel Description Input/output Input from guitar or other device , and output to an amp or other device. This path utilizes a high quality buffer. 2. Sends Mono ¼” Jack’s. All these Sends utilizes our high quality line drivers for best and stable impedance.
Page 11: Back Connection Panel Description
USER MANUAL MLP4 Back connection Panel Description Power supply Input 12VDC centre negative, 250mA 2. Midi In Standard Midi din-connector. . 3. Midi Thru This a copy of the incoming midi. Connections All connections are TS ¼”jack connections. Please use good quality signal/guitar cable for best results.
Page 12: Unit Specifications
USER MANUAL MLP4 Unit Specifications Input Impedance >1MΩ Loop returns Impedance 50kΩ Crosstalk Level <120dBu Noise Floor <120dBu Frequency Response 20Hz to 80kHz Max Input Level +24dBu Gain unit is unity gain loop Switching (electromechanical relay switching) Dimensions 134 x107 x 56 mm Use between 0°C and 40°C...
Page 13: Warranty
USER MANUAL MLP4 Warranty R.R.Amplifiers warrants the product to be free from defects in material and workmanship for a period of two (2) year from the original date of purchase. If the product fails within the warranty period, R.R.Amplifiers will repair or, at our discretion, replace the product at no cost to the original purchaser.