Pre Amp Marantz รุ่น 3300 ปรีระดับสูง สวย เสียงดี หายาก พร้อมใช้ Made in USA.
Pre Amp Marantz รุ่น 3300 ปรีระดับสูง สวย เสียงดี หายาก พร้อมใช้ Made in USA.
ไปอ่านรีวิวร์-เสปค จากเว็บต่างประเทศกันครับ...
Marantz Model 3300 ¥ 195,000 (around 1972?)
Commentary
A control amplifier that newly designed a circuit for transistors, selected transistors, and
carefully selected materials for resistors and switches.
The equalizer stage, the tone control stage, and the amplification stage of a feed have
adopted the direct-connection circuit which used the differential circuit in the first stage.
The power supply section uses a power transformer as a constant voltage circuit that doubles as
a ripple filter in order to deal with asymmetric and intense real-life music waveforms. Moreover, the left and right are separated and independent at the place where a silicon diode comes out,
and the crosstalk in a low region is improved.
Moreover, the transformer itself which used the cut core and wound the short ring with the
minimum flux is used, and the influence is suppressed by taking a sufficient mounting space.
Model rating
Model Stereo control console
Dynamic range Phono input, 100dB abobe 1.0μV, Equivalent noise input
Input sensitivity / impedance Phono: 1.35mV / 47kΩ
High Level: 135mV / 50kΩ
Output level / impedance Main: 3V / 47kΩ
Center Channel: 3V / 47kΩ
Tape: 3V / 47kΩ
Headphone: 3V / 8Ω
Total harmonic distortion 0.02% or less (3V output, 20Hz to 20kHz)
Intermodulation distortion 0.02% or less (3V output, any two frequencies between 20Hz
and 20kHz)
Frequency characteristic 6Hz-80kHz +0 -3dB
20Hz-20kHz ± 0.25dB
Total Broadband Noise (Equivalent Input) Phono (input loaded and shielded): 1.0 μV
Channel separation 40dB
Volume control tracking Within 1dB
Tone control Treble: ± 10dB (10kHz)
Bass: ± 10dB (100Hz)
filter High: 5kHz, 9kHz
Low: 50Hz, 100Hz
<Comprehensive>
power supply AC100V, 50Hz / 60Hz
220V optional on special order
power consumption 10W
External dimensions Width 391 x Height 146 x Depth 222 mm
weight 7.3kg