má někdo osobní zkušenosti s těmito staršími kousky?
Osobně jsem sehnal pouze pár fotek a tyto specifikace:
3-way Active Studio Monitor
Made in Bulgarian (Sofia)
Production years: 1985-1987
Price: 800-900$ (according to the production year) (today almost twice as much)
Symetric input
Input impedance- 20kOhm
Nominal signal input amplitude- 1,5V (+6 dBm)
Supression of the synphase signal (CMRR)-> 60dB
Nominal sound level (SPL)- 106 dB/1m
Frequency response:
2M in the main axis,
Frequency response- 1/3 octave noise- 30Hz-20kH /+-2dB
Spatial characteristics:
1/3 octave noise,biasing- +-3dB
In horizontal plane- +-30 degrees
In vertical plane- +-15 degres.
Nonlinear distortion
40Hz-20kHz 90dB/m-<1%
Noise level -10dBA
Separating filter-24 dB/oct,tipe LINKWITZ
Separating frequencies (crossover)- 500Hz and 4,5kHz
Power amplifiers- 3x60 Watts/8 Ohm
Nonlinear distortion of signal- <0,01% - 60W/8 Ohm
Intramodulational distortion of signal- <0,01%(CCIF-IM)
Regulator of the sound level- 106 dB-94 dB/1 m, calibrated
Correction for low and high frequencies- regulation in the margins +-12dB (separated 2dB steps for 30Hz and 20kHz)
Signal input coupling- XLR (canon)
Power supply input voltage- 220V,50/60Hz
Power consumption- 200 VA
Box dimensions- height/width/depth- 695x355x350 mm
LF driver- probably 10" or 11" (250 or 275mm)
Weight- 45 kg.