|Marantz Model 1152
||99,800yen(around the 1977 time)
DC stream-composition Integrated Amplifier of the
Low TIM design which outputted low a little by excluding a peek indicator from
The low-noise transistor selected carefully specially is used for an equalizer
amplifier, and it has become it with 3 steps of 5Tr stream-compositions
first rank differentials hardwired-connection differential circuitry of
difference input amplifier, buffer amplifier, and first class amplifier
with a constant current load intensity.
Here, a numeric value as high as 40dB of a closed loop gain is a thing
since model 7, and if it is high MC cartridge of an output partly, it is
also possible to use it direct.
the try tone control original with a Marantz possible to a control of a Mid
It is the linear slide system control which makes a graphic equalizer
consider, and is effective in a correction of a special NetWare program, or a
treatment of a room acoustic.
Bass and Treble change ±10dB and Mid changes
the frequency characteristic in a span of ±6dB.
Furthermore, Bass and
Turnover to which the performance characteristic of Treble can be moved are also
The loudness contour that the optimal Fletcher-Munson curve in each stage at the time of a small sound volume can be set up by a succession variable is carried.
Fine adjustment and the setting of low-pass and the amount of corrections
of a high region can be carried out independently, and, moreover, a master
volume can cut an it1 to ten steps.
Since a circuitry is
completely separated with the tick mark 0, the frequency characteristic becomes
It excels in the power linearity of the overall by pure
complimentary OCL and a parallel push-pull circuit.
outstanding phase response and transmission capability which are crossed to a
wide band with DC stream composition have been acquired.
protection network is carried, an excessive input is restricted to a safe value, and the protection which does not spoil musicality is performed.
bessel type filter which was excellent in the roll-off characteristics is
adopted, 9kHz and the roll-off curve in which 18 dB/oct is steep at 15Hz are
realized, and phase distortion is reduced.
The tone circuitry was jumped
and the tone defeat which sets the frequency characteristic as a flat is
The DC/AC amplifier circuit changing switch is carried.
Wooden cabinets are options.
||Stereo Integrated Amplifier
(20Hz - 20kHz, both channel drive)
|Frequency characteristic (20Hz - 20kHz)
||+ 0, -0.2dB
|Cross modulation distortion
||Main-amplifier input: 1.5V/30kohm
Phone man-month: 1.8mV/47kohm
|An Output power/impedance
||Pre Out: 1.5V/200 ohm
|RIAA deflection (20Hz - 20kHz)
|Input equivalent noise
||0.32 microvolt (a phone and IHF-A)
|Dynamic range (phone)
|Tone control property
||Low: 15Hz, 18dB / oct
High: 9kHz, 18dB /
||190W (Electrical Appliance and Material
||Width 416x height 146x depth of 316mm
||Standard walnut cabinet WC-110 (7,000yen)
Standard mahogany cabinet WC-110N (12,000yen)