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Power amplifier — 1,500 watts x 2 at 2 ohms, 4 ohms and 70 volts

Item # 909CA152

This powerful amp delivers up to 1,500 watts per channel for your commercial sound system — 3,000 when bridged.

This powerful amp delivers up to 1,500 watts per channel for your commercial sound system — 3,000 when bridged.

California customers:
Please click here for your Proposition 65 warning.

Item # 909CA152

Special order

Expected: 8/19/2022

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About the ASHLY CA 1.52

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A high-wattage commercial amplifier

The ASHLY CA 1.52 is a versatile, powerful amplifier that delivers up to 1,500 watts per channel to drive multiple speakers in a commercial sound system. The amplifier is rated for 2- 4- or 8-ohm loads and 70V and 100V output (in bridged mode), so you have plenty of configuration options. A set of DIP switches on the back panel offer control of the 80Hz high-pass filter, clip limiter and gain for each channel.

Product highlights:

  • 1,500 watts x 2 at 2 ohms, 4 ohms and 70 volts
  • 750 watts x 2 at 8 ohms
  • 3,000 watts x 1 at 8 ohms and 100 volts in bridged mode
  • LED status lights on front panel for clip/mute, signal, current, and temperature
  • individual gain control for each output channel
  • rear-panel DIP switches for setting 80Hz high-pass filter, clip limiter and gain for each channel
  • 80Hz high-pass filter
  • Class D amplifier
  • combination 1/4" TRS/XLR input for each channel
  • 2-pin Euroblock connector for standby mode (DIP switches for setting standby polarity and front panel disable)
  • two 3-pin Euroblock signal inputs
  • two 3-pin Euroblock remote DC level control connectors
  • 4-pin Euroblock speaker output (bridgeable)
Dimensions and warranty:

What's in the box:

  • 2-Channel power amplifier
  • 6' Power cord (IEC 3-pin)
  • One 4-pin Euroblock connector
  • Four 3-pin Euroblock connectors
  • One 2-pin Euroblock connector
  • Panel legend & safety warnings

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More details on the ASHLY CA 1.52

Russ B.

Product Research


Overview: The Ashly CA-1.52 is a high-output 2-channel power amplifier that's designed to drive high-output speaker systems in a very efficient manner. Ashly's proprietary D-MAX technology features a cutting-edge amplifier design that uses a new ultra-fast switching power supply, with silicon dioxide semiconductors and diodes, and intelligent power management for maximum efficiency. The CA-1.52 can drive 2-, 4-, and 8-ohm loads, and can also be used in 70V and 100V applications.

Power Rating: Each of the two output channels can provide the following:

  • 2Ω: 1500W
  • 4Ω: 1500W
  • 8Ω: 750W
  • 4Ω Bridged: 3000W
  • 8Ω Bridged: 1500W
  • 70V (Direct): 1500W
  • 100V (Bridged): 3000W

Input Connectors: Input Channels 1 & 2 each include an XLR/1/4" jack and a 3-pin Euroblock connector. All three input types can accept either balanced or unbalanced signals.

Note: The 3-pin Euroblock and XLR/1/4" jacks are wired in parallel and cannot be used simultaneously.

Output Connectors: The Ashly CA-1.52 features two output channels (Ch.1 & Ch.2) on a single 4-pin Euroblock connector. When bridging, only the center two pins (Ch.1 + and Ch.2 -) are used.

70V Connection: The CA-1.52's two output channels can also be wired for a 70V or 100V distribution line, providing up to 1500W per channel for 70V and 3000W (bridged) for 100V. You can even use one channel for 70V while the other is used for a standard low-Z connection (2-, 4-, or 8-ohm). 100V mode requires a bridged output connection. 70V/100V speakers connected to the amp must have an installed line transformer for stepping down the 70V/100V line to the desired power level. When connecting 70V/100V speakers, the 80Hz High-Pass Filter and the Limiter settings should be engaged via the DIP switches. 

Front-Panel Controls & Indicators:

  • Power Switch/LED (White): Powers the amplifier On/Off.
  • Channel Attenuators: Two attenuators (Channel 1 & 2) are provided, with a range from ∞ to 0.
  • Channel LED Indicators: Four LED indicators for each input channel will light to indicate:
    • Clip/Mute (Red): Clipping will be indicated when the speaker output reaches 95% (-0.5dB) of maximum power. Will also light to indicate Mute when the front-panel or DC level controls are fully attenuated.
    • Signal (Green): Lights when the amplifier output voltage reaches 25% (-12dB) of maximum.
    • Current (Green): Indicates when the output current to the speaker load reaches 2 Amps or greater.
    • Temp (Yellow): Indicates that automatic temperature protection measures are activated due to excessive internal temperature.
  • Bridge LED (Green): Lights to indicate Bridge Mode has been selected from the rear-panel switch.
  • Disable LED (Yellow): Lights to indicate the Power switch and Level controls have been disabled via the rear-panel DIP switches.
  • Protect LED (Red): Lights when one or more of the internal protection circuits has been activated (see below).

Rear-Panel DIP Switches: Input Ch.1 includes a 6-switch DIP panel and Ch.2 includes a 4-switch DIP panel for the following settings:

  • Limiter: Activates the built-in limiter for that channel, preventing the amp from sending a clipped signal to the speaker output.
  • 80Hz HPF: Lets you add 80Hz high-pass filtering (12dB/octave) to that channel.
  • Gain: Two DIP switches set the overall voltage gain of the amplifier for that channel, with options for 26dB, 32dB, 38dB, and 1.4V.
  • Standby Polarity (Ch.1 DIP): This DIP switch selects the polarity requirement for placing the amp in standby using an optional switch (sold separately) connected to the Standby 2-pin Euroblock connection. Options are High (contact is Closed) and Low (contact is Open).
  • Front Panel Disable (Ch.1 DIP): De-activates the all of the front-panel controls (On/Off).

Additional Connectors:

  • Remote DC Level Control (x2): A 2-pin Euroblock connector for each Input Channel for remotely controlling the level of that channel.
  • Standby: A 2-pin Euroblock connector lets you connect an optional switch for remotely placing the amplifier into Standby mode. The polarity of the switch can be set using the DIP switch panel for Channel 1.

Fan Cooled: Two internal variable-speed fans provides front-to-side/rear forced-air cooling. Ashly's unique SailFlow architecture directs internal airflow over the areas that generate the most heat, instead of randomly over the whole amplifier.

Protection: The CA-1.52 includes several built-in protection circuits including:

  • Power-On Delay: Prevents excessive in-rush current when first powered on
  • Thermal Protection: Signal limiting and variable-speed fans will be applied during channel over-temperature conditions
  • Overpower protection: Protects internal components against overpower conditions by reducing the audio output power in individual each output stage
  • Output DC and Rail Fault Protection: DC output on any channel will mute that channel and trigger the front-panel Protect LED
  • AC Mains: An automatic internal breaker will shut the amp down if the line voltage exceeds or falls below the specified operating range.

Mounting: The CA-1.52 features built-in rack ears allowing it to be mounted in a standard electronic equipment rack, taking up 2U of vertical rack space. The amp is 19.250" deep with the power cord plugged in.

Power Cable: A 6' IEC 3-pin power cable is included for connection to an AC power source.


  • Output Power (per channel):
    • 2Ω: 1500W
    • 4Ω: 1500W
    • 8Ω: 750W
    • 4Ω Bridged: 3000W
    • 8Ω Bridged: 1500W
    • 70V: 800W
    • 100V (Bridged): 3000W
  • Amp Topology: Class D
  • Frequency Response: 20Hz - 20kHz (±0.05dB)
  • Damping Factor: >250
  • THD: <0.05% (20Hz-20kHz, 10dB below rated output @4Ω)
  • Input Impedance: 10kΩ
  • Dimensions: Width = 19.0", Height = 3.50", Depth = 19.250"
  • Weight: 20 lbs.

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