Solid State
Stereo Preamplifier Equalizer
The Mark IXB
effectively unites the flexibility of an equalizer with one of the most
advanced preamplifier designs in the idustry. Because only the finest
professional type slide potentiometers and push-buttons are incorporated, the
Mark IXB's operating characteristics are similar to those used in professional
applications. The seven-band equalizer is especially useful to compensate for
poor recordings and room acoustics, and to modify the tonal characteristics of
loudspeakers.
When used
with components of commensurate quality, the Mark IXB will demonstrate its
outstanding dynamic signal range and perform with astonishing clarity..
The quiet
operation of the Mark IXB and its precise, uncolored reproduction of the audio
spectrum will bring out the optimum capabilities of either your phono cartridge
or tape recorder.
Seven-Band
Equalizer
Professional-type
equalizers, featuring feedback differential amplifiers furnish complete control
of all programmed material. Toroid inductors and high-accuracy low-drift
capacitors are used for all resonant networks. The Equalizers have a range
selection of 8 dB or 16 dB with up to 12 dB/per/octave slopes as determined by
seven center-detent slide controls.
Volume Control
The special
volume slide-control is one of the most precise in the industry with channel to
channel accuracy of 1 dB.
Headphone
For private
listening a front-panel stereo-headphone jack is provided which automatically
disconnects the main output to the amplifier when a phone plug is inserted.
Tape Monitor
Two stereo
tape jakcs are located on the front and rear panels to record or monitor with
either of two tape recorders.
Push-Buttons
Three banks
of four double-wiping contact push-button switches are used for program, mode,
equalizer, and copy selection.
EQ Defeat
A switch
electrically eliminates equalization circuitry to provide flat response without
disturbing slide-pot settings.
Added
features
Two pairs of
stero low-noise phono preamlifiers;
Four AC
accessory outlets;
Center-detent
balance control
Specifications
Equalizer
Control Range: ±8 dB or ±16 dB at 40 120
320 650 2,500 7,500 15,000
Total
Harmonic Distortion (at any level to rated output from 20-20,000 Hz): 0,02%
Intermodulation
Distortion (at rated output with any 2 mixed frequencies between 20 Hz & 20
kHz at a 4/1 Voltage ratio): 0,02%
Signal-to-Noise
Ratio:
Phono : 78 dB
Tuner, Tape,
Aux : 95 dB
Rated
Output: 2,5 Volts RMS
Maximum
Output (10 k Ω load): 10 V
Input
Impedance:
Phono
: 47 k Ω
Tuner,
Tape, Aux : 100 k Ω
Frequency
Response:
Phono : ±1 dB
Tuner, Tape,
Aux : ±0,25 dB
Recommended
Load (min.): 10 k Ω
Dimensions
(W x H x D): 17" x 5-3/4" x
7" (aprox.)
Weight: 15 lbs (shipping )