Magnum Dynalab MD-90 Brochure

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As successor to the FT101A, one of the most sensitive, selective and sonically accurate FM tuners of our
time, the continues the tradition by re-defining state-of-the-art in analog FM tuner design.MD-90
As did the FT-101A, the combines the very latest in discrete, analog technology. Its highly
renowned MOSFET front end provides 3 stages of very careful and precise amplification. Here even the
most fragile of signals is strengthened and further defined by using highly effective "group delay"
filtering. The result is a sonically correct audio signal, one that contains all the inherent richness and
brilliance of the source being broadcast.
In addition to the features offered by its predecessor, the now offers even greater selectivity in order to deal with urban signal congestion. The in house manufactured 3-stage RF front end is
sure to extract the most intricate signals from amongst the milieu of FM congestion that abounds in today's urban markets. Additional support is given through our custom , which constantly monitors and varies your stereo separation insuring optimal "stereo quieting" during your
listeing sessions.
MD-90's
Auto Blend RF circuit
The now incorporates all functions in a totally redesigned motherboard. This integration has
provided the necessary design efficiencies to allow consistently higher levels of selectivity to be
maintained. Along with added selectivity, the has a redesigned power supply circuit that maintains
the tuner circuitry at standby at all times when the tuner is connected to a live AC source. The can
now also house the analog remote system (FTR) inside the chasis allowing for precise analog tuning
through the optional infra red remote control. (sold optionally)
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FEATURES AND BENEFITS:
- Monitors and maintains program signal level and clarity,
along with providing a dramatic reduction in interference from strong, local stations.
Dual, keyed automatic gain control (AGC)
- Switchable to effectively control annoying sideband interference.BW 1/ BW 2 bandwidth control
- noise-activated with manual defeat switch.Mute circuit
- automatically monitors and varies stereo separation insuring optimal "stereo
quieting" during your listening sessions.
Auto Blend RF circuit
- User switchable.Stereo/Mono Mode
- Independent frequency counter derives input from tuner's local oscillator
section and displays in soft, amber 0.5" LED numerals.
Digital frequency display
Large, easy-to-read panel meters provide continuous monitoring of
and condition.
rf input level, multipath interference
level center-tune
Frequency tuning is via a precision potentiometer which provides a precise, filtered voltage for the tuning
varactors. Visual output is via the digital frequency display. The actual tuning mechanism consists of an
ultra smooth, large, front panel control knob.
Function switching is provided through tactile, toggle switches with oversize replaceable paddles.
WHY ANALOG?
In contrast with the frequency synthesis method of tuning, analog is not dependent on a digital
microprocessor chip to establish the tuner's receive frequency. With analog, tuning is accomplished using specially-selected, discrete components in the tuner's critical "front end." In the Magnum Dynalab design, these components are selected and matched so that a unique balance of sensitivity, selectivity and sound
can be maintained.
However, the most significant advantage in analog is that is delivers control into the hands of the user.
With the MD-90, infinite tuning is available in order to establish maximum stereo separation or to detune
slightly in order to minimize on-frequency noise. With frequency synthesis tuners, this capability is
offered usually in fixed, 50KHz steps. While FM stations themselves are rarely found to be transmitting
outside the +-2KHz standard, FM station signals that are rebroadcast over cable may not be quite so
precise.
$995.00 US Funds
PRICE
SPECIFICATIONS
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Usable sensitivity (mono) 10.3dBf
Usable Sensitivity (stereo) 11.2dBf
50dB quieting Sensitivity (mono) 13.2dBf
50dB quieting Sensitivity (stereo) 34.0dBf
Capture Ratio 1.5dB
Image Rejection 75.0dB
Signal to Noise Ratio (SNR) 75.0dB
Alternate Channel Attenuation (wide) 60.0dB
Alternate Channel Attenuation (narrow) 80.0dB
Adjacent Channel Attenuation (wide) 9.0dB
Adjacent Channel Attenuation (narrow) 25.0dB
THD (mono) 0.1%
THD (stereo) 0.18%
Stereo Separation 50.0dB
AM Suppression -70.0dB
SCA Rejection -75.0dB
-3dB frequency response 20Hz - 17KHz
Power Required 120vac @ 25 watts max.
Dimensions 19"(w) x 13" (d) x 4.25" (h)
Weight 12 lbs
Also available in 220 and 240VAC with either North American or European FM deemphasis. North America
deemphasis is provided if not specified otherwise.
Faceplate - Available in 17 3/4" black and 19" black and 19" rackmount.(standard)
silver and gold anodized finishes.(optional)
Option Available - Kimber wiring in significant signal paths-improves detail and high frequency extension
Option Available - Internal IR remote system
Option Available - Balanced Audio Outputs
The utilizes a direct trickle down technology found within the
and the "Pro-101." Along with providing the FM broadcaster with a sonically correct receiver in
order to maintain audio signal quality standards more reliably, the "Pro-101" incorporates circuitry
specifically for use in the FM broadcaster/repeater plant.
MD-90 Magnum Dynalab MD-series MD-100
tuner
OPTION - ANALOG Remote Control
Certain manufacturers feel that in order to build a remote-controlled tuner the signal in the front end
must be digitized, whereas we at Magnum Dynalab feel that this is where the problems start when you
are trying to produce the best sound. We have designed a special ANALOG remote control which
maintains the finite tuning and sound produced with our ANALOG tuners. The remote is optional and can
be added to any of our tuners at any time.
Features of the Magnum Dynalab ANALOG Remote
On/Off switch
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Five station presets
Remote fine tuning
Hard wire control interface
We feel that you should not sacrifice the great sound received from your tuner in order to obtain the
convenience of a remote control.
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