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Welcome. In selecting ATC you have chosen an

example of the finest audio engineering

available. ATC was founded on a principle of

engineering excellence, and that principle still

defines our products today. Given the right

opportunities, ATC

products

will

deliver

exceptional

audio

performance, but

the

opportunities will only arise from careful and

thoughtful installation and use. Please read the

following

manual

fully. It

will

help

you

understand the product and to realise its full

potential. We are happy to answer questions

and offer advice on any issues that arise

through installation or use of ATC products.

Contact details can be found at the back of this

manual.

ATC was founded in London in 1974 by Australian emigre Bill Woodman, who still

heads the company today. An enthusiastic pianist and engineer he was naturally

drawn to loudspeaker design and after a period working at Goodmans, where many

of the names that went on to found British loudspeaker companies began their

careers, he struck out on his own.The premise on which ATC began is a simple one,

and one that in many respects is still true today: hi-fi loudspeakers tend to be

detailed and accurate but of limited dynamic range, while professional monitor

speakers tend to express the opposite character. ATC products were designed from

the outset to offer the best of both. It’s an easy concept to describe, but surprisingly

difficult to engineer.

The difficulty inherent in designing such loudspeakers is one of scale. Hi-fi levels of

accuracy and detail call for lightweight moving parts and delicate engineering.

Professional monitor levels of performance however demand far more robust

components engineered to survive the rigours of high level use for extended

periods.The only way to combine the two is through precision engineering of a class

and scale more often associated with aerospace or motorsport. But the results are

worth the effort and the cost. ATC loudspeakers, with their unique in-house

designed drivers, combine the best of hi-fi and professional to devastating effect.

ATC has become synonymous with active systems. Choosing to offer active

loudspeakers (where the passive crossover network is replaced by active filters and

multiple power amplifiers) is simply a result of the uncompromising attitude to

loudspeaker design.While passive systems still have their place, and ATC engineering

skills can still bring remarkable results from them,“active” is a fundamentally better

solution to the problems posed by accurate, high level music reproduction.The ATC

instinct is always for the better solution. Not cheaper, not quicker, but better.

It was the development of active loudspeakers that first brought ATC into

electronics design and engineering. Active speakers demand multiple power

amplifiers so ATC from the mid 1980s became not just a loudspeaker manufacturing

company but an electronics manufacturer too.The further step from electronics for

active speakers to a range of stand-alone amplifier products was natural and now

means that ATC engineering is available from the recording desk or CD player

output to the ears.

From modest beginnings ATC has grown to become one of the very few

manufacturers successful across both domestic and professional audio. By selecting

ATC you join a group of music lovers, professional audio engineers, studios and

musicians across the World that understand and value the engineering that goes into

an ATC product - and the sound that comes out.

I n t r o d u c t i o n

2

SCM

50/100/

150

25/

110/

SCM

50/100/

150

25/

110/

C o n t e n t s

Page 2

Introduction

Page 3

Section 1

Description

Section 2

Unpacking and Handling

Section 3

Monitor Placement

Section 4

Listening

Section 5

Signal Cable Options

Section 6

Operation

Section 9

Amplification

Section

Connection

7

Page 8

Page 7

Specifications

Page 4

ASL monitors

Page 5

SL monitors

Section

Connection

8

Section 10
Section 11

Care and Maintenance

Warranty and Contact

Summary of Contents for SCM100

Page 1: ...SCM50 SCM100 SCM150 MULTICHANNEL A C O U S T I C E N G I N E E R S SCM110 SCM25A Pro User Manual Passive Active SCM25A Pro SCM50ASL SCM100ASL SCM110ASL SCM150ASL SCM50SL SCM100SL SCM110SL SCM150SL ...

Page 2: ... 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 a marked 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 oth...

Page 3: ...motorsport But the results are worth the effort and the cost ATC loudspeakers with their unique in house designed drivers combine the best of hi fi and professional to devastating effect ATC has become synonymous with active systems Choosing to offer active loudspeakers where the passive crossover network is replaced by active filters and multiple power amplifiers is simply a result of the uncompr...

Page 4: ...o avoid placing speakers on the console desk meter bridge Typically this compromises the balance of the loudspeaker especially in the lower mid range If the balance is bass light the monitors can be moved towards the so they form an equilateral triangle with the listening position See Fig 1 Loudspeaker stand height should be chosen to position the loudspeaker acoustic axis at or close to ear level...

Page 5: ...serious case then simply replacing the in another fuse failure The fuse will only result monitor should be returned toATC if a second fuse fails 5 4 Input Socket The audio signal cable should be connected here Balanced or or unbalanced cables may be used See Section 3 5 5 Bass Boost Provides up to 6dB of gain in the region of 40Hz Use a small flat blade screwdriver to access the control Adds more ...

Page 6: ...itable For cable runs longer than 10m use a significantly heavier gauge cable Consult your dealer or consultant for specific cable recommendations Ensure that the positive and negative terminals on each connection panel are connected back to the corresponding positive and negative terminals on the amplifier The choice of partnering amplifier for the monitors will have significant influence on the ...

Page 7: ...ll anslutas till jordat uttag Tri AmpPack High Performance Active Loudspeaker 3dB 0dB ref bass boost PUSH CONSUMPTION MAINS INPUT 50 60 Hz POWER 625 WATTS MAX CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN WARNING THIS EQUIPMENT MUST BE EARTHED Acoustic Transducer Co Is a trading name and Is the registered Trade Mark of Loudspeaker Technology Ltd Designed and manufactured by Acoustic Transducer Compan...

Page 8: ...atts 60 Watts 25 Watts 200 Watts 200 Watts 200 Watts 100 Watts 100 Watts 100 Watts 50 Watts 50 Watts 50 Watts 834 x 400 x 585mm 884 x 498 x 568mm 834 x 400 x 585mm 264 x 430 x 408mm 64 8kg 142 5lb 64 8kg 142 5lb 75 0kg 165 3lb 30 0kg 66lbs 115 220 230V Internally set Internally set 0 to 3dB 40Hz ASL Monitors SL Monitors Drivers HF MF LF Amplitude Linearity 2dB Cut off Frequencies 6dB free standing...

Page 9: ...f any malfunction repair should be referred to either the supplying dealer or consultant the relevant importer or ATC ATC has every confidence in the quality of each product that it manufactures 1 1 Wa r r a n t y a n d C o n t a c t All ATC products are guaranteed against any defect in materials or workmanship for a period of two years from the date of purchase Within this period we will supply r...

Page 10: ...U S T I C E N G I N E E R S Loudspeaker Technology Ltd Gypsy Lane Aston Down Stroud Gloucestershire GL6 8HR United Kingdom Telephone 01285 760561 Fax 01285 760683 Email info atc gb net Website www atc gb net ...

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