D-Amp model1200 free download

File name model1200.pdf

MODEL 1200 MODEL 1200 Weight: 9.5 lbs Dimension: 1 U rack space 19"W x 1.75"H x 15"D (with recess on front panel) Basic Class D (PWM) operation compares an input waveform (a) with a ramping signal (b); the output of the comparator drives a pair of output switches(c), whose output the amplifier then lowpass-filters and passe to the load(d). Power ratings 8 ohms stereo 350 W 4 ohms stereo 600 W 2 ohms stereo 800 W 8 ohms bridge 1200 W VREF 4 ohms bridge 1600 W + _ (a) (a)[ (b) + Frequency Response [ +0,-0.5Db 20-20 000Hz @ 1W RMS into 4 ohms [ +0,-3Db 20-20 000Hz @ 800W RMS into 4 ohms (b) [ Vcc (c)[ (d)[ RAMP GENERATOR (c) (d) Total Harmonic Distorsion Less than 0.1% @ 800W RMS per channel into 4 ohms Trasient Intermodulation Distorsion None (0%) due to the nature of the circuit Front Panel Indicator Enable LED for normal operation, Clip LED for clipping, distorsion, current limit, over temp and fault of amplifier. Output Slew Rate The amplifier output slew rate is internally controlled to optimize phase linearity and improve transient response, there for it cannot have slew rate limit. Power Consumption Effiency 1800W both channel driven into 4 ohms. More than 96% at all power. Mode of Operation for Power Supply Switch mode resonant PWM power supply, 62.5kHz operating frequency, 2KW capacity. Switch mode adaptive dead time power amplifier, 250kHz operating frequencywhit input/output comparator and limiter to prevent more than 2% distorsion at over-clipping, voltage and current mode feedback for linearity and protection. Mode of Operation for Power Amplifier Hum and Noise Greater than 95 Db below full power, from 20-20 00Hz Input Sensitivity Load Protection 1.4V for full power into 4 ohms DC protection from input to output, load mismatch and accidental short circuit, limiter. Load Impedance 4 ohms minimum per channel, powers reduce down to 50W RMS per channel into 3.2 ohms and less. Cooling 4 fans and small aluminium heat sink. Limiter Input and output comparison, limited to max of 2% deference between input and output. Input Voltage 110-130V or 205-250V, internally switchable. _ These controls are used to adjust the input gain of each channel. To have more gain turn the control button clockwise. INPUT SENSITIVITY A simple on/off switch. Push the ''o'' position to turns the power off. Push the ''-'' position to turns the power on. POWER SWITCH CH-1 CH-2 D-AMP N ATIO LIFIC DIGITAL AMP POWER CLIP CLIP LEVEL ENABLE LEVEL ENABLE BLUE LIGHTING SERIES MODEL 1600 Illuminates when AC mains power is being supplied to the amp & a signal is deteced . ENABLE LED For clipping, distorsion, current limit, over temp and fault of amplifier. CLIP LED Two parallel electronically balanced stereo input jacks are provided for each channel. This allows for one to be used as a conventional input, and, simultaneously, the other to be used as a ''line out'' (Y-cord) to connect to another input jack on this amplifier or other am