Luxman CL-1000, Owner'S Manual

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2
Features of This Unit
LECUTA
LUXMAN Electronically Controlled
Ultimate Transformer Attenuator
The 34-contact transformer type attenuator in which
FINEMET
®
core is used is switched with paired 34 pieces
of relays. The transformer type attenuator can suppress the
DC resistance generated in series with the signal transmis-
sion line.
FINEMET
®
manufactured by Hitachi Metals, Ltd. is used
for the core material of the transformer type attenuator like
MQ-300, and therefore, this attenuator features excellence
in the audible frequency characteristic and little change in
sound quality because of low permeability and low core loss
in a wide band.
Minimization and the same length of the connection wires
between the attenuator and relays at all the 34 contacts can
make changes in sound quality due to sound levels minimize.
Vacuum tube amplification circuit
The attenuator driver circuit, tone control circuit, and flat am-
plifier circuit contain a vacuum tube manufactured by JJ Elec-
tronic (Slovakia) (E88CC x 6).
Vacuum tube, E88CC-JJ
E88CC is an SQ (abbreviation of Special Quality) tube whose
characteristics are the same as those of the reliable tube and
features low noise.
Phono equalizer circuit equipped in EXT-IN
The phono equalizer circuit that contains FET and an op-
erational amplifier is used. MM, MC, or impedance can be
selected in accordance with the cartridge to be used. The
capacitor that we recommend can be also selected.
Balanced input circuit
A dedicated super permalloy transformer is equipped in the
input circuit.
Balance output circuit
A dedicated super permalloy transformer is equipped in the
output circuit.
PHASE INVERT function
The phase can be switched in accordance with the polarity
of the balanced input or output device to be connected to
this unit.
The phase of the unbalanced output of this unit can also be
switched.
ARTICULATOR function
Clear sound can be reproduced thanks to demagnetization
and tuning of the attenuator transformer.
After the power is turned on, the attenuator transformer is au-
tomatically demagnetized during the mute function activated.
This operation can be conducted even manually with the use
of the ARTICULATOR switch.
A signal is generated by the internal oscillator, this signal is
gradually decreased, and then the attenuator transformer is
demagnetized. If the internal oscillator is not in use, the power
of it is turned off. Therefore, the oscillator does not interfere
with the audio circuit at the normal use.
Eliminating resistance of audio signal line
Elimination of the resistance generated in series with the au-
dio signal line from input to output allows sound quality deg-
radation to be reduced and superior sound reproduction to
be realized. (Resistance is present when phono equalizer is
activated and the LINE STRAIGHT switch is set to off)
Tone control
LUX type tone control circuit is used, which is a classic style.
This unit is also equipped with the bass/treble tone control
function that can select the turnover frequency from three po-
sitions to allow the tone quality to be finely adjusted.
Wooden top cover
A U-shaped wooden top cover is used, which matches with
classic design.
Gloss coating finish with rosewood color is applied on walnut
veneer.