贵阳专业音响的数字音响的主要特点是信噪比高,贵阳
音响数字音响记录形式是二进制码, 重放时只需判断“0”或“1”。因此, 记录媒介的噪声对重放信号的信噪比几乎没有影响。而模拟贵阳音响记录形式是连续的声音信号,在录放过程中会受到诸如磁带噪声的影响,要叠加在声音信号上而使音质变差,尽管在模拟音响中采取了降噪措施,但无法从根本上加以消除。
■Model PRO-300
■Channel 2
■8Ω Stereo Power 300W
■4Ω Stereo Power 450W
■8Ω Bridged Power 700W
■Signal to Noise >103dB
■Slew Rate >60V/us
■Damping Factor >400
■Frequency Response (+/-0.1dB)
20Hz+20KHz
■THD (Rated power@ 8 Ohm, 1KHz) <0.01%
■LMD(Rated power@ 8 Ohm) <0.01%
■Input Sensitivity 0.775V,1.0V,1.55V
■Input Impedance 10K Ohm Unbalanced;
20K Ohm Balanced
■LPF 20Hz-180Hz Valid
■HPF 130Hz-20KHz Valid
■Input CMRR <-75dB
■Cross Talk <-70dB
■Main Power Supply 220V 50/60Hz,
Fuse:T8A
■Protection Short Circuit, Overload,
Overvoltage, Overheat
■Size W*D*H(cm) 48.3*42*88
■N.W. 16 kg
■Unit Piece