Hall Research AMP-7040 40W Audio Amplifier for 70V or 100V Systems with RS-232 Control

SKU: HRAMP7040 MFR: AMP-7040
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Key Features

  • Experience superior sound with this 40W audio amplifier, perfect for 70V/100V systems.
  • Enjoy reliable audio performance with a frequency range of 20 Hz to 20 kHz for clear sound.
  • Easily control your amplifier via RS-232, offering seamless integration into existing setups.
  • Achieve optimal audio clarity with a signal-to-noise ratio of 80 dB, minimizing background noise.
  • This installed amplifier features versatile power supply compatibility from 100 to 240 VAC.
  • Compact design (6 x 5.7 x 1.7") makes this audio amplifier easy to install in any environment.
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Special Order?Estimated to Ship: 08/18/2025
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Hall Research AMP-7040 Specifications

  • Rated Output

    Constant voltage 70V or 100V @ 40 w max (mono on a captive screw connector)

  • Gain

    26 dB

  • Frequency Range

    20 Hz to 20Khz

  • Signal/Noise Ratio

    80 dB max

  • Total Harmonic Distortion

    1%@1KHz, 0.3%@20KHz at nominal level

  • Input Impedance

    > 10 Kohm

  • Stereo Channel Separation

    >75 dB from 20 Hz to 20 KHz

  • CMRR

    >70 dB from 20 Hz to 20 KHz

  • Operating Temperature

    32 to 104 Degree F (0 to 40 Degree C)

  • Humidity

    20 to 90% non-condensing

  • Power

    Max Consumption: 40 watts
    Idle Consumption: 4 watts

  • Power Supply

    Input: 100 VAC to 240 VAC, 47-63 Hz
    Output: 24 VDC / 5A

  • Certifications

    Unit: CE, FCC, RoHS
    Power Supply: cULus

  • Dimensions (W x D x H)

    6 x 5.7 x 1.7" (153 x 144 x 44mm)

  • Weight

    2.0 lb (0.9kg)

About Hall Research AMP-7040

When seeking a robust and versatile audio amplification solution, the AMP-7040 stands out as a powerful 40W Class D amplifier, engineered to deliver high-quality sound reinforcement for 70V or 100V systems. This advanced amplifier is an ideal choice for a range of professional settings, including classrooms, meeting rooms, boardrooms, and sports bars, where reliable and durable audio performance is a must.

The AMP-7040 boasts a user-selectable voltage output, catering to both 70V and 100V audio systems, ensuring compatibility with a wide array of commercial audio setups. With its two stereo inputs, including a 3.5mm jack for line-in and dual RCAs for left and right channels, the amplifier provides flexible connectivity options. Additionally, it features a digital input for high-fidelity audio sources and a balanced microphone input, making it a comprehensive audio solution.

The microphone input is designed to blend seamlessly with one of the other inputs - be it RCA, 3.5mm, or SPDIF - offering users the ability to customize their audio mixing experience. Selection of the desired input mix can be easily achieved with a simple press of a button on the front panel, an RS-232 command, or via the optional IR remote (available separately), enhancing user control and convenience.

The AMP-7040's design accommodates both dynamic and condenser microphones, with fully adjustable control options that include an audio ducking function, which lowers the background audio volume when speaking into the microphone, and EQ control for fine-tuning the sound to match specific room acoustics or preferences. The MIC mixer feature further adds to the unit's versatility, allowing for precise balancing of audio levels.

Control over these sophisticated features is made effortless through the RS-232 interface, which not only enables remote management of the amplifier's settings but also facilitates integration into larger audio systems for centralized control.

In summary, the AMP-7040 is a high-performance audio amplifier that offers advanced features and reliable operation, making it a superior choice for those in need of a professional-grade audio amplification system that can handle the demands of both 70V and 100V environments with ease.

Hall Research AMP-7040 Features

  • Two stereo analog audio inputs and one digital audio input, selectable by buttons, IR remote, or RS-232
  • MIC port supports balanced or unbalanced signals
  • MIC input supports 48V phantom power, dynamic MIC and wireless MIC
  • Amplified output is switchable between 70V and 100V
  • Mono audio output at 40 watts
  • Supports "Ducking" function
  • Addressable RS-232 ports so up to 16 amps can be controlled from one RS-232 port
  • Volume / Bass / Treble controllable by buttons IR remote & RS-232
  • 3.5mm jack line audio output with controllable volume
  • Mono mix switch for summing left and right channels for driving mono outputs
  • Microphone input can be mixed with line input and each can be controlled separately
  • Auto noise squelch. Detects audio on inputs and mutes the output when there is no input
  • Does not have fans

Warranty Information

This product has a limited warranty of 36 months.

Key Features

  • Experience superior sound with this 40W audio amplifier, perfect for 70V/100V systems.
  • Enjoy reliable audio performance with a frequency range of 20 Hz to 20 kHz for clear sound.
  • Easily control your amplifier via RS-232, offering seamless integration into existing setups.
  • Achieve optimal audio clarity with a signal-to-noise ratio of 80 dB, minimizing background noise.
  • This installed amplifier features versatile power supply compatibility from 100 to 240 VAC.
  • Compact design (6 x 5.7 x 1.7") makes this audio amplifier easy to install in any environment.

What's in the box:

  • AMP-7040 40 Watt Audio Amplifier for 70V or 100V Systems
  • Hall Research 3 Year Limited Warranty