Crown D-45 Stereo Power AmplifierAn unquestioned long-term standard, D Series amplifiers are found everywhere in the lab, on the road, in public facilities, in the studio and at home. With over 25 years of continual production of the DC-300 amplifier, the D45 Stereo Power Amplifier is an example of Crown's commitment to developing long-term, reliable amplifier technology. The D-45 is a stereo power amplifier that is perfect for moderate power applications, such as recording or broadcast studio near-field monitoring, video suite audio monitoring, a recording or broadcast headphone amplifier, or a small paging system. The D-45 is designed to ensure reliable operation with a wide variety of loads and is convection cooled. AB+B circuitry ensures efficient use of output transistors while incorporating protection against shorted, open, mismatched or low-impedance loads. This high reliability is particularly important in reducing maintenance costs. Additionally, the amplifiers sonic excellence also makes it a very good choice for a personal listening environment. The D-45 is backed by a three year, fully transferable no-fault full warranty.
Key Features:
|  | Stereo power amplifier with accurate, uncolored sound and very low distortion | | AB+B class circuitry yields maximum efficiency with minimum crossover "notch" distortion | | Ultra-low harmonic and inter-modulation distortion result in the best dynamic transfer function in the industry | | IOC (input/output comparator) alerts of any distortion that exceeds 0.05% to provide proof of distortion-free performance | | Bridged mono and stereo operation | | Detented level controls for precise repeatability | | Convection cooling system dissipates heat through the heat sinks and chassis for optimal cooling and maintenance-free operation |
Specifications: Power Rating | Stereo @ 4 ohms: 35 watts per channel
Stereo @ 8 ohms: 25 watts per channel
Stereo @ 16 ohms: 20 watts per channel
Bridged @ 8 ohms: 70 watts
Bridged @ 16 ohms: 50 watts | | Damping Factor | Greater than 400 from DC to 400Hz | | Input Sensitivity | Configurable for 26dB gain or 0.775 volt sensitivity | | Input Impedance | 10k ohm/20k ohm (unbalanced/balanced) | | Gain | 20.6:1 +/-3% or 26.3dB +/-0.3dB at maximum level setting | | Frequency Response | 20Hz to 20kHz, +/- 0.1dB at 1 watt | | Signal-to-Noise Ratio | Better than 106dB from 20Hz to 20kHz at full bandwidth FTC power | | Total Harmonic Distortion (THD) | Less than 0.001% at full bandwidth FTC power from 20Hz to 400Hz increasing linearly to 0.05% at 20kHz | | Input Connections | 1 x Neutrik Combo per channel | | Output Connectors | Barrier block, 1 x Headphone | | Controls Front Panel | 2 x 31 position detented rotary level control for each channel
Two position on/off power switch | | Controls (Rear) | None | | Indicators | 1 x Signal, 1 x Input/Output Comparator (distortion indicator) LED indicators per channel | | Cooling | Convection | | Power Consumption | 150 watts maximum | | Dimensions | 19" x 8 1/2" x 1 3/4" | | Weight | 8.7 lbs | | Specialties | The amplifier is totally convection cooled. The entire aluminum chassis acts as a conductor to dissipate heat. The covers and front panel extrusion also act as heat sinks. Much of the unit's heat is conducted through the extruded front panel. This design is used so that front panel contact with the equipment rack will also dissipate heat |
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