AVM EVOLUTION A2 Instrukcja obsługi - Strona 2

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DEAR CUSTOMER,

thank you for the trust you have shown in us with the purchase of this integrated amplifier Evolution A2.You

have acquired a versatile hi-fi component with absolutely excellent sound qualities.

It is understandable that you would like to immediately start listening to the music. Despite this we advise

you to show some patience; you will find that this will stand you in good stead.

Before you take this equipment into use for the first time you should thoroughly read this operating manu-

al. It will ensure that the equipment can be optimally used to give you a great deal of untroubled pleasure.

We have made every effort to include in this manual all the necessary information for providing assistance

to operate the equipment. Please contact us in writing or by telephone if you have further questions, if the

answers are not to be found here. We will make every effort to provide you with assistance.

YOUR

V'A

TEAM

Certificate of Conformity

We confirm that the equipment described in these operating instructions conforms to the EU regulations

applicable at the time of print permitting it to bear the sign

CE:

All relevant tests achieved positive results.

THE CONCEPT OF THE EVOLUTION A2

We have put great store during the development oftheAYM-high-end components to produce interference-

free and precise musical reproduction.At the same time we want to offer you a clear and lucid design which

will result in Simple and comfortable operation. We have found that conventional solutions are not always

adequate to achieve these aims without making compromises. We have not deviated from the norm just for

the sake of it,AYM is looking to explicitly serve the optimization of tonal quality and user friendliness of our

components.

THE MECHANICAL CONSTRUCTION

The casing of the A2 consists for the greater part of magnetically shielding steel plate - this dependably stops

outside interference. The built in power transformers are by nature of the low scattering toroidal type. All

in- and output sockets of the A2 have plated contact areas for durability and improved contact. Epoxy resin

circuit boards with double thickness copper layer coupled with the use of brand named, selected quality

components ensure that you will have long term enjoyment with your AYM integrated amplifier.

THE POWER SUPPLY

Two separate power supplies, each with their own toroidal transformers, supply the A2 output stages (dual-

mono-construction). The filter capacitance totals over

80.000~F,

the available transformer power 340 YA,

whereby over the short-time, peaks up to I.OOOYA are available.At critical points the power supply is addi-

tionally supported by HF-suitable film capacitors. Because of this the output stages remain absolutely stable

even under loads of 2 Ohms. The dual-mono supply ensures optimal channel separation and a stable tone,

even when powerful musical passages are encountered.

The prestage is supplied from a third power supply with 2 x 4.700

filters. This has the effect that the input

stages can operate without interference from the previously emitted amplifier power and forms the basis for

the enduring peaceful, well-defined tone of the A2.

THE INPUT AMPLIFIER

During the development of the input circuitry we paid great attention to extreme speed, accuracy and low

noise. The high level inputs of the A2 fit all signal sources with regard to impedance and sensitivity.

Additionally input sensitivity can be comfortably adjusted to suit the requirements.The inputAUX I was con-

ceived as a high level input to which sources with exceptionally high output voltage would be connected.

Relays are situated directly behind the input sockets. These serve to switch the signal, selected with either

the rotary switch or the remote control, to the input buffer amplifier. The incoming musical Signal is of low

impedance and thereby immune to interference and cross-talk.

Balance, volume and input sensitivity are adjusted individually to the right and left channels by digital level con-

trollers.These work in 0.5dB steps with an adjustment accuracy of 0.05dB over the complete range.The result

is that the image remains stable and accurate even at low volume. The compactness of the circuitry allows a

fast and exact processing of the musical Signal, presenting no target to humming and scattering.