This listing is for a Magnum Dynalab MD-90 audiophile grade analog FM stereo tuner in overall good condition. Dark alunimum face, no dents or any real detraction's.
The MD-90 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 are 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, both units now offer even greater selectivity in order to deal with urban signal congestion. Their in-house manufactured 3-stage RF front end is sure to extract signals from even the FM congestion that abounds in today's urban markets. Additional support is given through their custom Auto Blend RF circuit, which constantly monitors and varies the stereo separation insuring optimal 'stereo quieting' during listening sessions.
As the successor to the FT101A, one of the most sensitive, selective and sonically accurate FM tuners of our time, the MD-90 continues the tradition by re-defining state-of-the-art in analog FM tuner design.
As did the FT-101A, the MD-90 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 MD-90 now offers even greater selectivity in order to deal with urban signal congestion. The MD-90's 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 Auto Blend RF Circuit, which constantly monitors and varies your stereo separation insuring optimal "stereo quieting" during your listening sessions.
The MD-90 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 MD-90 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 MD-90 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 separately)
The Dual, keyed automatic gain control (AGC) - Monitors and maintains program signal level and clarity, along with providing a dramatic reduction in interference from strong, local stations.
BW 1/ BW 2 bandwidth control - Switchable to effectively control annoying sideband interference.
Mute circuit - noise-activated with manual defeat switch.
Auto Blend RF circuit - automatically monitors and varies stereo separation insuring optimal "stereo quieting" during your listening sessions.
Stereo/Mono Mode - User switchable.
Digital frequency display - Independent frequency counter derives input from tuner's local oscillator section and displays in soft, amber 0.5" LED numerals.
Large, easy-to-read panel meters provide continuous monitoring of rf input level, multipath interference level and center-tune condition.
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.
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.
Usable sensitivity (mono): 10.3 dBf
Usable sensitivity (stereo): 11.2 dBf
50 dB quieting sensitivity (mono): 13.2 dBf
50 dB quieting sensitivity (stereo): 34.0 dBf
Capture Ratio: 1.5 dB
Image rejection: 75.0 dB
signal to noise ratio (SNR): 75.0 dB
alternate channel - wide: 60.0 dB
alternate channel - narrow: 80.0 dB
adjacent channel - wide: 9.0 dB
adjacent channel - narrow: 25.0 dB
THD - mono: 0.10%
THD - stereo: 0.18%
stereo separation: 50.0 dB
AM suppression: 70.0 dB
SCA rejection: -80.0 dB
-3 dB frequency response: 20 Hz - 17 KHz
Power required: 120/220/230/240 vac
Dimensions: 19" (w) x 13" (d) x 4.25" (h)
Weight: 12 lbs
Standard faceplate (black): 17"
Underrated for buyer satisfaction.
Guaranteed to arrive intact and to work correctly. This is the only one we will have.
Listed weight is 14 lbs before packing, pls add 2% for Paypal.
Revised shipping policy as of September 20, 2005.
Due to items lost or damaged in shipping, any item over $50.00 in cost will require delivery confirmation and insurance for the sale amount. It is unfortunate that this is necessary but experience has proven it is well worth the small extra cost. We apologize for this, but it is for the good of all involved.
Our reputation is very important to us. If you would like to check our eBay feedback rating you will find over 2000 satisfactory transactions with no negative results. We still maintain a 100% positive feedback rating. soundideasflorida is our user name.
TERMS: All listings are plus shipping unless noted. 6.00% sales tax added to all In-Florida destinations. This unit is guaranteed to be in "as described" working condition (unless otherwise noted) upon arrival and has a 30 day limited warranty, baring any abuse. 15% restocking fee on all returns unless defective or "not as described"
PAYMENT or payment notification expected within 1 business day of invoicing. We accept PayPal, credit cards, money orders, international money orders, cash if local p/u. Money orders, international money orders, etc, must clear before shipment. Paypal payment to "firstname.lastname@example.org" is our favored payment method.
SHIPPING: We ship internationally on smaller items . Domestic packages are shipped via Fed Ex. Small items (such as vacuum tubes) or international packages shipped via USPS. All shipping quotes will include insurance and delivery confirmation. Shipping charges reflect actual cost of shipping, plus a nominal fee for packaging materials. Items are very carefully packaged for shipment. Items ship from 32609 in Florida.
INSURANCE: International shipments to countries that do not allow insurance, buyer assumes FULL RESPONSIBILITY for the safe shipment of their packages. Sound Ideas cannot provide refunds or compensation for packages shipped without shipping insurance. All shipping quotes for packages shipped includes insurance.
CONTACT: We stock over 50,000 vacuum tubes. Contact us if you have any special vacuum tube needs.
Sound Ideas, 3215 NW 13th Street, Gainesville, FL 32609. 352-378-0192(9 am-6pm Monday-Friday,10 am-5pm Saturday, EST)
Since 1977.We carry over 50 new brands of electronics, please stop by the store when you are in Florida.
Rob - Internet Sales Manager
Please feel free to e-mail me: "RobA@soundideasstereo.com"
Sound Ideas - Gainesville, Florida
Tel: 352-378-0192Fax: 352-371-1791
Thank-you for your time and interest!