Crown D-45
Crown RF Amplifiers. Channel: independent level control with front-panel accessi.
- Model
- Crown D-45
- Calibration
- Available on request
- Price
- $225
- Status
- In stock
- RFQ ref
- D-45
This unit
The Crown D-45 is a two-channel stereo power amplifier delivering 20–35 watts per channel in stereo mode or up to 150 watts in bridge-mono configuration. Built on AB+B class circuitry with fanless convection cooling, it achieves exceptional audio fidelity with THD below 0.001% (20 Hz–400 Hz) and a 106 dB signal-to-noise ratio. The amplifier maintains ±0.1 dB frequency response from 20 Hz to 20 kHz and includes Crown's IOC® distortion monitoring to ensure signal integrity during operation.
Technical Specifications Audio Performance
Frequency Response: ±0.1 dB (20 Hz to 20 kHz at 1 W)
Phase Response: +10 to −15 degrees (20 Hz to 20 kHz at 1 W)
Signal-to-Noise Ratio: 106 dB (20 Hz to 20 kHz at full bandwidth FTC power)
Total Harmonic Distortion: <0.001% (20 Hz–400 Hz), rising to 0.05% at 20 kHz
Damping Factor: High for exceptional loudspeaker motion control
Input Sensitivity (26 dB gain): 0.632 V (8-ohm load)
Voltage Gain (maximum level, 8-ohm): 25.2 dB ±0.3 dB Output Power (1 kHz, ≤0.1% THD)
Stereo Mode: 20 W @ 16 Ω, 25 W @ 8 Ω, 35 W @ 4 Ω per channel
Bridge-Mono Mode: 70 W @ 8 Ω, 150 W @ 16 Ω Physical & Electrical
Rack Format: 19-inch (48.3 cm) standard
Cooling: Convection (fanless)
Power Source: 100–120 VAC mains
Fuse: 2 A type 3AG time-lag, low breaking capacity
Circuitry: AB+B class
Key Features
IOC® Input/Output Comparator alerts when distortion exceeds 0.05%
Ultra-low intermodulation distortion for superior dynamic transfer
Detented level controls (Channel 1 & 2) for precise repeatability
SIGNAL and IOC indicator lights for real-time monitoring
Headphones jack on front panel
Typical Applications
Studio monitoring and near-field listening
Video suite audio systems
Small-scale public address installations
Applications demanding minimal crossover distortion and clean reproduction
Compatibility & Integration
Input Connectors: XLR (balanced) and RCA (unbalanced)
Output: Barrier block speaker terminals
Channel-independent level control with front-panel accessibility
Specifications
| Parameter | Value |
|---|---|
| Frequency Range | 20 Hz to 20 kHz | Voltage / Current Range: 100–120 VAC mains |
Crown D-45 — Repair & Calibration Service
Aumictech offers NIST-traceable calibration and repair for the Crown D-45. All calibrations are performed to NIST-traceable standards and ship with a certificate. Turnaround is typically 1–3 business days after receipt.
Crown D-45 price
This Crown D-45 is listed at $225. Calibration is available separately from $450. Contact us for volume pricing or if you need multiple units.
Crown D-45 calibration cost
NIST-traceable calibration for the Crown D-45 is $450 (standard — pass/fail certificate and calibration sticker) or $650 (full measured data at every test point, reference standards documented, traceability chain included). Turnaround is 1 to 3 business days after receipt. See full calibration details →
