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etting The Most From Your D/A-3

In a system of commensurate high quality components, the conrad-

johnson D/A-3 offers an extraordinary level of sophistication and refine-

ment in music reproduction. To get the best performance out of any

audio system, there are a number of important details which must be

attended to.

Absolute Phase

Musical notes are heard through the ear's response to waves of alter-

nating rise and fall of air pressure. Musical transients are almost exclu-

sively positive: that is, the initial effect is a rise in pressure. The ear is

capable of distinguishing these positive transients from the musically

unnatural alternative of a negative transient (an initial fall in air pressure).

In terms of your stereo system, these transients are created by your

loudspeakers. If the speakers respond to musical transients by first

moving out, they are creating a rise in pressure, and the system is said

to be phase correct. If they respond by moving in, they create a fall in

pressure and the system is said to be phase inverting.

Each component in the stereo system either preserves the phase of the

incoming signal, and is said to be phase correct, or inverts the phase

and is said to be phase inverting. It is unimportant whether an individual

component is phase correct or phase inverting, as long as the system

as a whole is phase correct. This will be the case if the number of phase

inversions is even (or zero). A system with an odd number of phase

inversions can be corrected by adding one more inversion by reversing

the positive and negative speaker leads.

We recommend that you connect your system for correct absolute

phase, and use the phase invert switch on the D/A-2b to correct for

phase incorrect recordings.

The Importance Of Wires

Interconnect and speaker wires are an important element in your stereo

system. Interconnects are available which will permit a reference quality

system to blossom and fulfill its promise of musical reality. Others will

strangle the system to the point where it becomes little better than

D/A-3 Owner's Manual