|MARK LEVINSON ML-7AL
||L2 card equipment: 1,650,000yen(1986 release)
L3 / L3A card equipment: 1,850,000yen(1986 release)
Control amplifier which added the enhancement which
also amounts to 105 places based on ML-7L, and was developed.
interferencee is suppressed, while the main-unit part (ML-7AL) and the
power-source part (PLS-154L) serve as a design which dissociated and became
independent and realize low-impedance-ization by three buslines of a
Each part is using careful selection materials, such as cosmic rays and Military Standard of the aircraft, abundantly until it results in a volume or a tape-alternation relay. The high Teflon capacitor of the vibration proof by Military Standard is adopted as the weight RIAA path especially on the Phono stage.
"8PIN type" with little tone-quality property transition by extraction and insertion which has very little resistor of a contact is adopted as the contact button of the card which constitutes each stage. Moreover, while installing a heat sink in each card and attaining a stabilization of an element, strength improvement to an extraneous vibration is planned.
To the I/O board, lead wire is controlled by simple-ization put
into practice using the four-layers substrate etc. to the minimum.
plug-in card of high gain and L3A plug-in card which can link MC cartridge
directly are prepared for phone amplifier as an option.
||The phone amplifier 2, line amplifier 2
The stream composition by a total of four plug-ins
||Phone amplifier: 38dB, 44dB
At the time
of L3 plug-in-card attachment: 66dB
At the time of an L3A plug-in-card
Line amplifier: 20dB
||Phone amplifier: 50kohm, 825ohm (switchover)
At the time of L3 plug-in-card attachment: 825ohm
At the time of an L3A plug-in-card attachment: 825ohm
Line amplifier: 10kohm
|Output load impedance
||Phone amplifier (Tape out): 2kohm
Line amplifier (Main out): 47ohm
||Phone amplifier: 6.6V
||Main unit: Width 483x height 51x depth of
Power-source part: Width 101x height 101x depth of 269mm
||Main unit: 3.6kg
||L3 / L3A plug-in card (\600,000)