Crest Audio CPX 1 Power Amplifier
• Professional Two-Channel Power Amplifier
• Class AB Amplifier Design
• Designed for Touring and Fixed Audio Installations
• 300W × 2 at 2Ω Stereo
• 480W × 2 at 4Ω Stereo
• 290W × 2 at 8Ω Stereo
• 600W Bridged Output at 4Ω
• 960W Bridged Output at 8Ω
• Short-Circuit, Thermal, RF and DC Protection
• 19-Inch Rack-Mountable, 2U Design
Crest Audio CPX™ 1 Professional Power Amplifier
The Crest Audio CPX™ 1 Professional Power Amplifier is a reliable two-channel power amplifier designed for professional PA systems, live sound reinforcement, touring applications and permanent audio installations. Featuring a Class AB amplifier design, it delivers flexible power output for different speaker configurations, making it suitable for sound systems in auditoriums, event venues, houses of worship, hotels, conference halls and DJ setups.
With stereo and bridged mono operating modes, the CPX 1 offers flexible system configuration. It delivers 480W per channel at 4Ω in stereo mode, while bridged operation provides up to 960W at 8Ω. This makes it easier to match the amplifier to compatible passive PA speakers according to the required system setup.
The amplifier includes balanced XLR and ¼-inch TRS combo inputs, along with barrier-strip connections. Its 4-pin twist-lock and binding-post speaker outputs provide practical connection options for professional audio installations. A temperature-dependent fan cooling system helps manage operating temperature, while built-in protection safeguards the amplifier against short circuits, open circuits, overheating, RF interference and DC faults.
Frequently Asked Questions (FAQs)
1. What is the Crest Audio CPX 1 Power Amplifier used for?
The Crest Audio CPX 1 is a professional two-channel power amplifier designed for PA systems, live sound, DJ setups, auditoriums, event venues, houses of worship and commercial audio installations.
2. How much power does the Crest Audio CPX 1 deliver?
Its power output depends on the speaker impedance and operating mode. It delivers 480W per channel at 4Ω stereo, 290W per channel at 8Ω stereo and 960W at 8Ω in bridged mono mode.
3. Does the Crest Audio CPX 1 support bridged mono operation?
Yes. The amplifier supports both stereo and bridged mono modes. Bridged output is rated at 600W at 4Ω and 960W at 8Ω. Always use a compatible speaker load and follow the manufacturer’s connection instructions.
4. What input and output connections are available on the CPX 1?
It features XLR and ¼-inch TRS combo inputs, barrier-strip connections, 4-pin twist-lock speaker outputs and binding posts for professional audio system connections.
5. Does the Crest Audio CPX 1 have built-in protection and cooling?
Yes. It features temperature-dependent fan cooling and protection against short circuits, open circuits, excessive temperature, RF interference and DC faults. It also includes GCL™ Gain Comparator Limiting.
Specification
| Brand | Crest Audio |
| Model | CPX™ 1 |
| Product Type | Professional Power Amplifier |
| Amplifier Category | Touring & Installation Power Amplifier |
| Amplifier Class | Class AB |
| Number of Channels | 2 Channels |
| Power Output @ 2Ω Stereo | 300W per channel |
| Power Output @ 4Ω Stereo | 480W per channel |
| Power Output @ 8Ω Stereo | 290W per channel |
| Power Output @ 4Ω Bridged | 600W |
| Power Output @ 8Ω Bridged | 960W |
| Minimum Load Impedance | 2Ω Stereo |
| Frequency Response | 12 Hz–35 kHz (+0, -2 dB) |
| THD | Less than 0.1% |
| Damping Factor | Greater than 250:1 |
| Slew Rate | Greater than 12 V/µs |
| Input Sensitivity | 1.08V RMS @ 4Ω rated output |
| Input Impedance | 10 kΩ (Balanced) |
| Signal-to-Noise Ratio | Greater than 88 dB |
| Crossover | 150 Hz Linkwitz-Riley, 4th Order |
| Low-Cut Filter | 40 Hz, 12 dB/Octave |
| Limiter | GCL™ Gain Comparator Limiting |
| Operating Modes | Stereo and Bridged Mono |
| Input Connectors | 2 × XLR / ¼-Inch TRS Combo, Barrier Strip |
| Output Connectors | 4-Pin Twist-Lock and Binding Posts |
| Cooling System | Temperature-Dependent Fan Cooling |
| Protection | Short Circuit, Open Circuit, Thermal, RF and DC Protection |
| Power Supply | Dual Voltage |
| AC Voltage | 115V / 220–240V AC, 50/60 Hz |
| Power Consumption | 550W (At 1/8 Rated Output, 4Ω Stereo) |
| Mains Connector | IEC |
| Rack Mount | 19-Inch Rack, 2U |
| Dimensions (H × W × D) | 89 × 483 × 380 mm |
| Net Weight | 18.2 kg |
| Colour | Black |






















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