CPX 3 - Receiver CREST AUDIO - Free user manual and instructions
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| Brand | Crest Audio |
| Model | CPX 3 |
| Product Type | Audio Receiver |
| Channels | 2 channels (stereo) |
| Power Output (RMS) | 300W per channel into 4 ohms |
| Frequency Response | 20 Hz - 20 kHz, ±0.5 dB |
| Inputs | XLR, 1/4" TRS, RCA |
| Outputs | Speaker outputs (binding posts), XLR line outputs |
| Amplifier Type | Class AB |
| Cooling | Variable speed fan, rear to front airflow |
| Protection | Short circuit, thermal, overload, DC offset |
| Front Panel Indicators | Power, Signal, Clip, Protect LEDs per channel |
| Gain Controls | Rotary level controls per channel |
| Filter / Crossover | Subwoofer crossover filter: 30-250 Hz, selectable |
| Power Supply | 100-240V AC, 50/60 Hz, auto-sensing |
| Dimensions (W x D x H) | 19" x 16" x 3.5" (rack mountable, 2U) |
| Weight | 28 lbs (12.7 kg) |
| Chassis Material | Steel, black finish |
| Operating Temperature | 0°C to 40°C (32°F to 104°F) |
| Maintenance | Clean with dry cloth; avoid liquids |
| Accessories Included | Power cord, rack ears, user manual |
Frequently Asked Questions - CPX 3 CREST AUDIO
How do I connect the CPX 3 to a mixer?
Use balanced XLR or 1/4" TRS cables from your mixer's outputs to the CPX 3's inputs. Ensure gain controls are turned down before powering on.
What speaker impedance can the CPX 3 handle?
The CPX 3 is rated for 4 ohms minimum per channel. For optimal performance, use 4 or 8 ohm speakers.
How do I bridge the CPX 3 for more power?
The CPX 3 does not support bridged mode. It is a stereo amplifier only.
The PROTECT LED is on. What should I do?
The PROTECT LED indicates a fault. Check for shorted speaker cables, overheating, or impedance below 4 ohms. Turn off the amp, resolve the issue, and restart.
Can I use the CPX 3 for subwoofers?
Yes, the CPX 3 has a built-in variable crossover filter. Set the frequency to match your subwoofer and use the RCA or XLR outputs to feed a powered sub or other amp.
What type of power cable does the CPX 3 use?
It uses a standard IEC C13 power cord. The power supply is auto-sensing for 100-240V AC.
How do I clean the CPX 3?
Disconnect power. Use a soft, dry cloth to wipe the front panel and chassis. Do not use water or cleaning solvents. Ensure ventilation slots are dust-free.
Is the CPX 3 rack-mountable?
Yes, it is 2U rack height. Rack ears are included for mounting in a standard 19" rack.
What is the warranty period for the CPX 3?
Crest Audio typically offers a 2-year warranty from date of purchase. Check with your dealer for specific terms.
The fan is loud. Is this normal?
The fan speed varies with temperature. Under heavy load or in hot environments, the fan may run faster and become audible. Ensure adequate ventilation around the unit.
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USER MANUAL CPX 3 CREST AUDIO
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Product information
Brand : CREST AUDIO
Model : CPX 3
Category : Receiver