CA1.54 4-Channel Power Amplifier

The Ashly CA1.54 is a four-channel, high-efficiency Class D power amplifier designed for demanding professional sound reinforcement and commercial audio installations. Delivering 1,500 watts per channel at 2 or 4 ohms and 750 watts per channel at 8 ohms, it combines high output power with efficient cooling and flexible system integration. Support for direct 70V operation and bridged 100V applications makes it suitable for large-scale sound systems and distributed audio installations.

From The Manufacturer:

Ashly's CA Series was developed to provide high output power with improved energy efficiency and thermal management. Its proprietary D-MAX amplifier design incorporates an efficient switching power supply and intelligent power management, while the SailFlow cooling architecture helps maintain reliable operation.

The CA1.54 provides four amplifier channels, selectable gain, installer-friendly input and output connections, and support for low-impedance and constant-voltage loudspeaker systems. The series is designed for applications such as large houses of worship, concert venues, airports, stadiums, auditoriums, and theatres.

Key Features:

• Four-channel Class D power amplifier.

• 1,500W per channel at 2 ohms.

• 1,500W per channel at 4 ohms.

• 750W per channel at 8 ohms.

• Direct 70V constant-voltage operation on all four channels.

• Bridged 100V operation using channel pairs.

• High-efficiency D-MAX amplifier technology.

• Dynamic Power Factor Correction.

• SailFlow cooling architecture with temperature-controlled fans.

• Selectable gain settings for each channel.

• Front-panel input gain controls with lockout capability.

• Switchable high-pass filter and clip limiter per channel.

• Balanced XLR and ¼-inch TRS combo inputs.

• Euroblock input and loudspeaker output connections.

• Remote DC level-control connections.

• Integrated amplifier protection circuitry.

Specifications:

• Brand: Ashly.

• Model: CA1.54 / CA-1.54.

• Product type: Professional power amplifier.

• Amplifier class: Class D.

• Number of channels: 4.

• Output power at 2 ohms: 1,500W per channel.

• Output power at 4 ohms: 1,500W per channel.

• Output power at 8 ohms: 750W per channel.

• Bridged output at 4 ohms: 3,000W per channel pair.

• Bridged output at 8 ohms: 1,500W per channel pair.

• Direct 70V output: 1,500W per channel.

• Bridged 100V output: 3,000W per channel pair.

• Frequency response: 20Hz–20kHz, ±0.05dB.

• Typical THD+N: Less than 0.5% under specified test conditions.

• Signal-to-noise ratio: Greater than 103dB, unweighted, at 26dB gain.

• Channel separation: -75dB at 1kHz.

• Damping factor: Greater than 250 at 8 ohms below 1kHz.

• Input impedance: 10k ohms.

• Maximum input level: +21dBu.

• Input connectors: XLR/¼-inch TRS combo and 3.5mm Euroblock.

• Speaker output connectors: 7.62mm Euroblock.

• Input gain settings: 26dB, 32dB, 38dB, or 1.4V sensitivity.

• Cooling: Continuously variable, temperature-controlled fan cooling.

• AC power connector: 20A IEC.

• Operating voltage range: 70–135V AC on 110–120V systems; 140–270V AC on 220–240V systems.

• Mains frequency: 50–60Hz.

• Compliance: cTUVus, CE, FCC Class B, and RoHS.

Included Accessories:

• AC power cable, subject to regional package configuration.

• Other in-box accessories should be confirmed with the supplier.

Applications:

• Large houses of worship and church sound systems.

• Concert venues and live sound reinforcement.

• Theatres and auditoriums.

• Stadiums and large performance venues.

• Airports and transport terminals.

• Commercial audio installations.

• High-output passive loudspeaker systems.

• Multi-zone distributed audio.

• 70V constant-voltage loudspeaker systems.

• Compatible 100V systems using bridged channel pairs.

Included Accessories:

• AC power cable, subject to the supplied regional package.

• Other included accessories: Not confirmed.

Accessories (Not Included):

• Rack cabinet or rack case.

• Audio signal cables.

• Loudspeaker cables and any additional connectors not supplied with the amplifier.

• Remote DC level controllers.

• Loudspeakers.

• External signal processing equipment, where required.

Size:

• Width: 483mm (19 inches).

• Height: 89mm (3.5 inches).

• Depth: 409mm (16.1 inches).

• Rack format: 2U.

Weight:

• Net weight: 9.08kg (20lb).

• Shipping weight: 10.9kg (24lb).

Electrical/Thermal:

• Operating voltage: 70–135V AC on 110–120V systems; 140–270V AC on 220–240V systems.

• Mains frequency: 50–60Hz.

• Standby power consumption: Approximately 22W.

• Idle power consumption: Approximately 100W.

• Power consumption at one-eighth maximum output: Approximately 975W under the manufacturer's stated test conditions.

• Thermal dissipation at one-eighth maximum output into 4-ohm loads: Approximately 648BTU/hour.

• Cooling: Variable-speed, temperature-controlled fan cooling.

• Protection features: Inrush-current limitation, over-temperature, output DC, output over-power, AC mains voltage, and mains fuse protection.

• Operating temperature: 0°C–49°C, non-condensing.