·产品描述  

HELIX DB FOUR Dark Blue

4-channel amplifier with active crossovers

Colour: silver

Features:

        ▪ RMI (Real Mixed Input) for forming an optimised
            mono-summation signal from the left and right channels
        ▪ Integrated electronic crossover
        ▪ 5.0 volt / 8.0 volt inputs for connection to any signal source
        ▪ Switched power supply unit for output performance of
            generously dimensioned proportions within the
            smallest spaces
        ▪ Intelligent noiseless on/off switching for the prevention
            of pop noise, even when various units are interconnected
        ▪ Smart protection electronics for overheating,
            overvoltage and voltage drop
        ▪ Separate speaker protection circuit with current
            limitation for speaker short circuiting, cable contact
            with the car body, low impedance and faulty connection
        ▪ ADC Anti Distortion Choke (current-compensated
            input device) for noise suppression
        ▪ 1% accurate components for perfect sound quality
        ▪ 24 carat gold-plated solid connection terminals
            for loss-free signal and power transmission
        ▪ CPS (Colour Protection System) diagnostics system
        ▪ Temperature-optimised heatsink of SiAl alloy for the
            best possible consistency of performance

DB 4 　
4欧时额定功率/最大功率 4×60/120 Watts RMS/Music
2欧时额定功率/最大功率 4×90/180 Watts RMS/Music
4欧桥接时额定功率/最大功率 2×180/360 Watts RMS/Music
频响范围 10Hz-30kHz
低音加强 0-18dB/45Hz
高通调节范围 15-4000Hz adjustable
低通调节范围 40-4000Hz adjustable
 
总谐波失真 <0,03%
瞬态互调失真 <0,04%
信噪比 >98 dB
输入阻抗 10 kOhms
输入灵敏度 0,2-8.0V
保险 2×25A
高×长×宽in mm 53×362×277
净重 5.0kgs