Crown D-45
The D-45 and D-75A are perfect for moderate power applications such as recording or broadcast studio near-field monitoring, video suite audio monitoring, a recording/broadcast headphone amp or a small paging system. Designed, built and carefully checked to ensure reliable operation with a wide variety of loads, Crown D Series amplifiers are convection cooled. Their high reliability is particularly important in reducing maintenance costs.
- Powerful AB+B class circuitry yields maximum efficiency with minimum crossover “notch” distortion.
- IOC® (Input/Output Comparator) alerts of any distortion that exceeds 0.05% to provide proof of distortion-free performance.
- Signal presence indicators verify the presence of amplifier output.
- Detented level controls for precise repeatability.
- Ultra-low harmonic and intermodulation distortion result in the best dynamic transfer function in the industry.
- Very low noise and wide dynamic range.
- High damping factor provides exceptional loudspeaker motion control.
- Convection cooling system eliminates fan noise and maintenance.
- Mounts in a standard 19-inch (48.3-cm) rack.
- Front-panel headphone jack.
Frequency Response |
+/- 0.1 dB from 20 Hz to 20 kHz at 1 watt |
Phase Response |
+10 to -15 degrees from 20 Hz to 20 kHz at 1 watt |
Signal to Noise |
106 dB from 20 Hz to 20 kHz at full bandwidth FTC power |
THD |
Less than 0.001% at full bandwidth FTC power from 20 Hz to 400 Hz increasing linearly to 0.05% at 20 kHz |
Intermodulation Distortion |
(60 Hz and 7 kHz 4:1) Less than 0.01% from 0.25 watts to full bandwidth FTC power, and less than 0.05% from 0.01 to 0.25 watts |
Crosstalk |
Greater than 100 dB below full bandwidth FTC power from 100 Hz to 1 kHz decreasing linearly to 80 dB at 20 kHz |
Damping Factor |
Greater than 400 from DC to 400 Hz |
Controlled Slew Rate |
6 volts per ms. (Slew rates are limited to useful levels for ultrasonic/RF protection) |
Voltage Gain |
At maximum level setting, 8-ohm load, 0.775V input sensitivity |
Load Impedance |
Safe with all types of loads.Rated for 4 to 16 ohms in dual mode, and 8 to 16 ohms in bridge-mono mode |
8 800 100 54 66
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