Conrad-johnson design Premier Ten Owner'S Manual Download Page 8

G

ETTING THE MOST FROM YOUR PREMIER
TEN

The conrad-johnson Premier Ten offers an unparalleled level of sophis-
tication and refinement in music reproduction, but it cannot transform an
inferior stereo system. Only high quality amplifiers and loudspeaker
systems will be capable of fully revealing the capabilities of this preci-
sion instrument.

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 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 pres-
sure). 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 is either phase correct or phase inverting (including
the source and speakers-these are normally phase correct). It is of no
consequence 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 PREMIER TEN IS PHASE INVERTING. If your system has an odd
number of inversions, then you must add one phase inversion. This will
be the case if the Premier Ten is the only unit in the chain that inverts
phase. THIS IS CONVENIENTLY DONE BY REVERSING THE POSI-
TIVE AND NEGATIVE CONNECTIONS TO YOUR SPEAKERS (be
sure to reverse both channels).

If you are not sure about the phase of every piece in your system, you
can establish correct absolute phase by careful listening. When the
system is in correct phase, transients will be noticeably cleaner and

Premier Ten Owner’s Manual

8

Summary of Contents for Premier Ten

Page 1: ...ned to establish the reference stand ard among line stage preamplifiers for reproducing the dynamics to nalities textures and ambience of a live musical performance The design and materials have been...

Page 2: ...ign Replacement cartons are available from the factory for a nominal charge d Normal wear and maintenance are not covered by this warranty 3 The above warranty may be transferred to subsequent owners...

Page 3: ...register the warranty The warranty may be transferred to a new owner if it has been properly registered initially and if the registered owner sends a signed notice providing the name and address of th...

Page 4: ...220 or 240 volt power lines CONNECTION AUX PH TUNER CD TAPE 1 TAPE 2 These high level inputs are electrically equivalent They present a 17k ohm load to the source The outputs of your tape recorders s...

Page 5: ...tput of the tone controls to Tape 2 and the input of the tone controls to Record 2 To use the tone controls select Tape 2 on the Source Selector and use the Record Selector to select phono tuner cd or...

Page 6: ...CE SELECTOR AUX PH TUNER CD TAPE 1 TAPE 2 This selector switch is used to choose an input for listening RECORD SELECTOR AUX PH TUNER CD TAPE 1 TAPE 2 This control selects the signal to the record outp...

Page 7: ...rd for either cost or prestige We know of no vacuum tubes available which will improve the sonic performance of your Premier Ten In addition the tubes in your pream plifier have been tempered by a con...

Page 8: ...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 sai...

Page 9: ...no better than average To complicate matters our experience suggests that the choice of interconnects will be system dependent those that are ranked first on a given system may be a poor choice for a...

Page 10: ...than 100kHz Hum and noise 94dB below 2 5V output Distortion at 1 0 v output less than 5 THD or IMD Phase inverts phase of all inputs at main out Ouput impedance less than 200 ohms Mechanical Dimensio...

Page 11: ...esign inc 2733 Merrilee Drive Fairfax VA 22031 Be sure to include a copy of your sales receipt from the original pur chase along with a note explaining the problem you are having in as much detail as...

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