Conrad-Johnson MF200 Manuale - Pagina 6

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ETTING THE MOST FROM YOUR

Conrad-Johnson MF200

The MF200 is a highly sophisticated music reproduction instrument, but

it cannot transform an inferior stereo system. Only the very best loud-

speaker systems will be capable of fully revealing the capabilities of this

precision instrument. On the other hand, the MF200 is highly revealing

of faults in the signal source.

Proper set-up is important in any high-fidelity system, but with state-of-

the-art components it is essential. Before attempting to evaluate the

MF200, be sure that each component in your system has been set up

carefully according to manufacturer recommendations. Adjustment of

the cartridge vertical tracking angle can be especially critical with mod-

ern stylus configurations.

Given a system of high quality components, there remain 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 exclusively

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 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 is either phase correct or phase inverting (including the cartridge

and speakers-these are normally phase correct). It is of no conse-

quence if an individual component is phase inverting, as long as the

system as a whole is phase correct. This will be the case as long as the

number of phase inversions is even (or zero).

THE MF200 IS PHASE CORRECT. If your system has an odd number

of inversions, then you must add one phase inversion. This is conven-

MF200 Owner's Manual