В чудовому стані зовні і технічно. Без втручань . Є на продаж інші моделі цієї фірми 3636 і акустика.
Optonica SM 4646 ( Japan).Music power : 2x 145W (4 Ohm, 0,05% THD)
2x 90W (8 Ohm, 0,05% THD)
RMS power : 2x 95W (4 Ohm, 1Khz)
2x 70W (8 Ohm, 1Khz)
2x 85W (4 Ohm, 20Hz…20Khz)
2x 60W (8 Ohm, 20Hz…20Khz)
THD / IMD : 0,05% (1Khz, rated power)
0,02% (1Khz, 50W output)
Power bandwidth : 10Hz…45Khz (IHF, 0,1% THD, 45W output)
Frequency response : 10Hz…100Khz (+0 / -2dB)
Input : 650mV / 47kOhm
Outputs : 4…16Ohm (A or B)
8…16Ohm (A+B)
Damping factor : > 50 (8 Ohm, 1Khz)
Residual noise : 0,5mV
S/N ratio : 100dB
Preamp Section
EQ amp circuit : 1st stage differential amp
Control amp circuit : NF type tone control amp
Inputs : 2,5mV / 22 / 47 / 100kOhm (phono 1)
2,5mV…5mV / 47kOhm (phono 2)
150mV / 47kOhm (aux, tuner, tape 1/2, DIN 1/2)
Max phono input : 350mV (RMS, 1Khz)
RIAA curve : 20Hz…20Khz (± 0,3dB)
Outputs : 150mV (RCA tape 1/2 out)
30mV (DIN tape 1/2 out)
Frequency response : 10Hz…70Khz (+0 / -1,5dB)
Bass control : ±10dB at 100Hz (600Hz turn.)
±10dB at 50Hz (300Hz turn.)
Treble control : ±10dB at 10Khz (1,5Khz turn.)
±10dB at 20Khz (3Khz turn.)
Low filter : -3dB at 10Hz (12dB/octave)
High filter : -3dB at 20Khz (6dB/octave)
Loudness contour 1 : +6dB / 100Hz
+4dB / 10Khz
Loudness contour 2 : +6dB / 100Hz
+?dB / 10Khz
Residual noise : 25mv (phono)
3mv (tape mon.)
S/N ratio : 70dB (phono)
90dB (lines)
General
Componentry : 8 FETs
2 ICs
27 transistors
25 diodes
1 LED
PC : 520W max.
Dimensions : 44,2 x 14,4 x 36,3cm
Weight : 16kg.