ATC PRO Series User Manual

1 Read instructions – all the safety and operating instructions should be read before the appliance is operated.
2 Retain these instructions – the safety and operating instructions should be retained for future reference.
3 Heed warnings – all warnings on the appliance and in the operating instructions should be adhered to.
4 Follow instructions – all operating and other instructions should be followed.
5 Water and moisture – the appliance should not be exposed to dripping or splashing and no objects such as vases, should be placed on the
appliance.
6 Ventilation – a minimum 0f 80mm is required at the rear of the appliance to ensure sufficient ventilation. The ventilation should not be impeded
by covering the appliance with items such as table-cloths, curtains etc. Further, the appliance should not be built into an installation, such as a
bookcase or cabinet, that may impede the flow or air around the appliance.
7 Heat – the appliance should be situated away from heat sources such as radiators, stoves or other appliances that produce heat.
8 Power sources – the appliance is of Class1 construction and shall be connected to a MAINS socket outlet with a protective earthing connection.
9 Power cord protection – power supply cords should be routed so that they are not likely to be walked on or pinched by items placed upon or
against them, paying particular attention to cords at plugs, convenience receptacles and the point where they exit the appliance.
10 Cleaning – the appliance should be cleaned only as recommended by the manufacturer.
11 Unattended periods – the power cord of the appliance should be unplugged from the outlet when left unused for a long period of time.
12 Object entry – care should be taken so that objects do not fall into the appliance.
13 Damage requiring service – the appliance should be serviced by qualified service personnel when:
i. the power supply cord or the plug has been damaged
ii. objects have fallen or liquid has been spilled into the appliance
iii. the appliance has been exposed to rain or other serious liquid exposure
iv. the appliance does not appear to operate normally or exhibits amarked change in performance
v. the appliance has been dropped or the cabinet damaged
14 Servicing – the user should not attempt to service the appliance beyond those measures described in the operating instructions. All other
servicing should be referred to qualified service personnel.
15 Grounding or polarisation – precautions should be taken so that grounding or polarisation means for the appliance are not defeated.
16 The Mains disconnection switch is located on the rear panel. Pressing the switch downwards will turn the unit on. The unit can be turned off
by upward pressure on the switch. Please allow enough room around the unit to ensure the switch is readily operable when the unit is in use.
SECTION ONE
1.1 We l c o m e
SECTION TWO
2.1 Product Description
SECTION THREE
3.1 Room Interaction
3.2 SCM25A Pro Mk2 Monitor Placement
3.3 SCM25Ai Pro Mk2 Loudspeaker Mounting
3.4 SCM25Ai Pro Mk2 Remote Amp Installation
S E C T I O N F O U R
4.1 SCM25A Pro Mk2 Connection
4.2 SCM25A Pro Mk2 Cable Options
4.3 SCM25Ai Pro Mk2 Connection
SECTION FIVE
5.1 SCM25A Pro Mk2 Operation
SECTION SIX
6.1 R1-234 Remote Amp Operation
6.2 R2-234 Pro & R3-234 Pro Remote Amp Operation
SECTION SEVEN
7.1 Listening
SECTION EIGHT
8.1 SCM25A Pro Mk2 Acoustic Specifications
8.2 SCM25A Pro Mk2 Electronic Specification
8.3 SCM25A Pro Mk2 Physical Specifications
8.4 SCM25Ai Pro Mk2 Acoustic/Loudspeaker Specifications
8.5 SCM25Ai Pro Mk2 Physical Specifications
8.6 R1-234 Pro Remote Amp Electronic Specifications
8.7 R1-234 Pro Remote Amp Physical Specifications
8.8 R2-234 & R3-234 Pro Remote Amp Electronic Specifications
8.9 R2-234 & R3-234 Pro Remote Amp Physical Specifications
SECTION NINE
9.1 Care & Maintenance
9. 2 Wa r r a n t y
9. 3 C o n t a c t
SAFETY WARNINGS
CONTENTS

ATC PRO Series Specifications

General

Type	Studio Monitor
Series	PRO
Input	XLR
Amplifier	Class AB
Driver Configuration	2-way
Crossover	Active or Passive (varies by model)
Enclosure Type	Vented or Closed (varies by model)

Summary

Section One Welcome

Welcome

Introduction to ATC products and their engineering philosophy.

Section Two Product Description

Product Description

Details on the SCM25A Pro Mk2 and SCM25Ai Pro Mk2 studio monitor loudspeakers.

Section Three Installation and Placement

Room Interaction

How room acoustics affect loudspeaker performance and positioning.

SCM25A Pro Mk2 Monitor Placement

Guidance on optimal positioning of the SCM25A Pro Mk2 loudspeakers for best results.

SCM25Ai Pro Mk2 Loudspeaker Mounting

Instructions for mounting the SCM25Ai Pro Mk2 install variant using M8 mounting points.

SCM25Ai Pro Mk2 Remote Amp Installation

Guidelines for installing remote amplifiers for the SCM25Ai Pro Mk2 to prevent overheating.

Section Four Connections and Cabling

SCM25A Pro Mk2 Connection

Details on connecting the SCM25A Pro Mk2 to power and audio sources.

SCM25A Pro Mk2 Cable Options

Information on balanced and unbalanced cable configurations for the SCM25A Pro Mk2.

SCM25Ai Pro Mk2 Connection

Connecting the SCM25Ai Pro Mk2 to its remote amplifier using specific cables.

Section Five SCM25A Pro Mk2 Operation

SCM25A Pro Mk2 Operation

How to operate the SCM25A Pro Mk2, including power, bass boost, and input sensitivity.

Section Six Remote Amplifier Operation

RI-234 Remote Amp Operation

Operational details for the RI-234 Pro remote amplifier.

R2-234 Pro & R3-234 Pro Remote Amp Operation

Operation of the R2-234 Pro and R3-234 Pro remote amplifier channels.

Section Seven Listening Guidance

Listening

Guidance on listening levels and avoiding distortion for optimal sound perception.

Section Eight Specifications

SCM25A Pro Mk2 Acoustic Specifications

Technical acoustic data including drive units, frequency response, and SPL for the SCM25A Pro Mk2.

SCM25A Pro Mk2 Electronic Specification

Electronic specifications for the SCM25A Pro Mk2, including amplifier type and power output.

SCM25A Pro Mk2 Physical Specifications

Physical dimensions and weight for the SCM25A Pro Mk2 monitor.

SCM25Ai Pro Mk2 Acoustic/Loudspeaker Specifications

Acoustic and loudspeaker specifications for the SCM25Ai Pro Mk2 variant.

SCM25Ai Pro Mk2 Physical Specifications

Physical dimensions and weight for the SCM25Ai Pro Mk2 variant.

RI-234 Pro Remote Amp Electronic Specifications

Electronic specifications for the RI-234 Pro remote amplifier.

RI-234 Pro Remote Amp Physical Specifications

Physical dimensions and weight for the RI-234 Pro remote amplifier.

R2-234 & R3-234 Pro Remote Amp Electronic Specifications

Electronic specifications for the R2-234 Pro and R3-234 Pro remote amplifiers.

R2-234 & R3-234 Pro Remote Amp Physical Specifications

Physical dimensions and weight for the R2-234 Pro and R3-234 Pro remote amplifiers.

Section Nine Maintenance and Support

Care & Maintenance

Guidelines for cleaning and maintaining the product's finish and components.

Warranty

Information on the product warranty period and registration for extended coverage.

Contact

Contact details for Loudspeaker Technology Ltd., including phone, email, and website.