ATC CDA2 Mk2 User Manual

CDA 2 Mk2

ACOUSTIC

ENGINEERS

®

user manual

C DA 2 Mk2 compact d isc pre-amplifier, DAC

In selecting ATC you have chosen an example of the finest audio engineering available. ATC has always

kept steadfastly to its founders’ aim of building, mostly by hand, studio and hi-fi electronics and

loudspeakers which employ the most effective of modern engineering principles.

That has meant striving to make products as near perfection as it is possible to make them.

In order to get the very best from ATC equipment careful and thoughtful installation is essential,

so please read the manual fully to understand your ATC purchase

and realize the very best performance it has to offer.

Please contact ATC with any questions or issues that arise during installation

or use and we will do our very best to help.

ATC (Acoustic Transducer Company) was founded in London in 1974 by Australian Billy Woodman who still heads

the company today.An enthusiastic jazz pianist and engineer he was naturally drawn to loudspeaker design.

ATC’s reputation for the design and manufacture of unique high performance loudspeaker drive units is

legendary with new concepts of design evolving and being perfected continually since its inception in 1974.

The same is true of ATC’s equally innovative and successful high performance audio electronic products.

It all started in1982 with the EC23, a stereo, 3-way electronic crossover incorporating phase correction and

momentary gain reduction – features that are incorporated in all ATC active loudspeaker systems to this day.

The EC23 was the controller for all large ATC active loudspeakers right up to the development in 1996 of the

SPA24-850, a stand-alone stereo Ampack for the control and amplification of SCM200 and SCM300 monitors.

But it was the development of the SCM50A active 3-way monitor in 1985 that changed everything.

An aluminium plate and heatsink that bolted straight into the back of the loudspeak er cabinet onto which three

power amplifiers were mounted: 200W bass, 100W mid-range and 50W high frequency, incorporating phase

correction and momentary gain reduction. This technology is why all ATC active monitors have a flat magnitude

response, an excellent minimum phase response and are factory set to prevent the amplifiers from clipping

when driven hard. There is nothing else that sounds better or off ers such great value.

ATC designed and developed its first stand-alone hi-fi electronic product through the necessity of the ongoing

quest for the best possible performance money can buy. Few pre-amplifiers available could drive the long lengths of

cable necessary from the listening position to the active loudspeakers at the end of the room and hence the SCA2

pre-amplifier was developed in 1996 with its exceptional audio perf ormance, transparency and current drive ability.

ATC today has a broad pallet of high performance audio electronic products from the CA2 pre-amplifier to the

exquisite P6 power amplifier.

Extending this formidable range of audio electronic products is the CDA2 Mk2 – the second generation of ATC’s

integrated compact disc player/pre-amplifier offering all the performance of the CA2 pre-amplifier plus a built-in

CD transport, a high resolution asynchronous USB interface and a premium AKM stereo 32-bit DAC having very

low distortion at -112dB. The new CDA2 Mk2 has truly exceptional performance and features.

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, educators, studios and

musicians across the world that understand the value of the engineering that g oes into every ATC product.

Safety Warnings

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 – the appliance should be situated so that its

location or position does not interfere with its proper

ventilation. For example, the appliance should not be situated

on a bed, sofa, rug or similar surface that may block the

ventilation openings. Similarly, the appliance should not be

built into an installation, such as a bookcase or cabinet, that

may impede the flow of air through the ventilation openings.

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 should be connected to a

power supply only of the type described in the operating

instructions or as marked on the appliance.

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 and liquid entr y – care should be taken so that

objects and liquids do not fall into the a ppliance.

13. Damage requiring service – the appliance should be ser viced

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 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 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.