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Yamaha P2500S Two-Channel Power Amplifier, 250W into 8 Ohm Stereo, 30K Ohms Input Impedance, 20Hz - 50kHz Frequency Response

SKU: YMP2500S MFR: P2500S
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Key Features

  • Yamaha P2500S power amplifier: 250W at 8 Ohms for robust, clear audio performance.
  • Achieve pristine sound with a low THD of less than 0.1%, ensuring minimal distortion.
  • Versatile input impedance of 30K Ohms accommodates various audio source connections.
  • Experience superior signal-to-noise ratio of 100dB, eliminating unwanted background noise.
  • Benefit from reliable protection circuits, safeguarding your power amplifier from damage.
  • High damping factor of >200 ensures tight, controlled low-frequency response for your speakers.
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Yamaha P2500S Specifications

  • Output Power

    Rating at 1kHz, THD=1%
    275W at 8 Ohms Stereo (per channel)
    390W at 4 Ohms Stereo (per channel)
    780W at 8 Ohms Bridged-Mono
    Rating at 20Hz - 20kHz, THD=0.1%
    250W at 8 Ohms Stereo (per channel)
    310W at 4 Ohms Stereo (per channel)
    620W at 8 Ohms Bridged-Mono
    Rating at 1kHz, 20ms Nonclip
    650W at 2 Ohms Stereo (per channel)
    1300W at 4 Ohms Bridged-Mono

  • Damping Factor

    Greater than 200 (8 ohms, 1kHz)

  • Input Sensitivity

    +3dB (8 ohms, Max Attenuation)

  • Input Impedance

    30 k ohms (Balanced)
    15 k ohms (Unbalanced)

  • Gain

    32.1dB

  • Frequency Response

    20Hz - 50kHz (0dB, +0.5dB, -1dB at 1 Watt, 8 ohms)

  • Signal-to-Noise Ratio

    100dB

  • Total Harmonic Distortion (THD)

    Less than 0.1%, 20Hz - 20kHz, Half Power

  • Input Connections

    2 x 3-pin XLR Female (Balanced)
    2 x 1/4" (6.3mm) TRS Phone (Balanced)

  • Output Connectors

    2 x Speakon
    2 x 5-way Binding Post
    2 x 1/4" (6.3mm) Phone

  • Controls Front Panel

    1 x Push On/Off Power Switch
    2 x 31-Position Attenuator Knobs

  • Controls (Rear)

    1 x Stereo/Bridge/Parallel Mode Switch
    2 x Subwoofer/Low Cut/Off Filter Switches
    2 x 25Hz - 150Hz Frequency Control Switches
    1 x Yamaha Speaker Processing On/Off Switch

  • Indicators

    1 x Green Power On LED
    1 x Red Protection LED
    1 x Red Heatsink Temp Overheat LED
    1 x Yellow YS Processor LED
    2 x Green Signal LEDs
    2 x Red Clip LEDs

  • Cooling

    Dual Variable-Speed Fans

  • Power Consumption

    Idle: 25W
    1/8 (4 ohms): 320W
    Maximum (4 ohms): 1600W

  • Power Requirements

    120V 60Hz

  • Dimensions (WxHxD)

    480x88x456mm / 18.89x3.46x17.95"

  • Weight

    30.9 lbs (14 kg)

About Yamaha P2500S

An exceptional blend of power and performance, the Yamaha P2500S Two-Channel Power Amplifier is a robust, rack-mountable stereo power amplifier designed for superior sound reinforcement applications. Boasting a potent 250 watts per channel at 8 ohms, this amplifier is not only powerful but also impressively lightweight for its size, making it an ideal choice for both professional and home audio setups.

The P2500S is meticulously optimized for use with Yamaha's Club Series speakers, featuring a unique YS engagement switch. This proprietary technology activates a specialized circuitry that harmonizes the amplifier's output with the speakers' capabilities, ensuring optimal performance. However, this amplifier's versatility extends beyond Yamaha products, as it supports speakers from all other manufacturers, with the option to deactivate the YS circuitry if desired.

One of the standout features of the P2500S is the innovative EEEngine energy conservation design. This advanced technology delivers the same full output as traditional amplifier designs but at half the power consumption. This feature, coupled with a comprehensive suite of thermal and limiting overload protection, facilitates cooler, quieter operation and enhanced frequency response, minimizing distortion for a superior listening experience.

The P2500S is equipped with XLR and 1/4" balanced inputs and Neutrik Speakon, binding post, and 1/4" speaker outputs, ensuring seamless connectivity to virtually any sound system. The rear panel offers a variety of filtering options, the YS activation switch, and a mode switch, supporting stereo, bridged, and parallel operation.

The amplifier's front panel is adorned with a vibrant, color-coded LED activity indicator array, providing clear visual feedback. Additionally, the channel attenuator knobs are thoughtfully recessed and protectively covered, enhancing the amplifier's durability and user-friendly design. With the Yamaha P2500S Two-Channel Power Amplifier, you can expect high-quality, reliable, and advanced audio amplification for your sound system.

Yamaha P2500S Features

  • Rack-mountable stereo power amplifier with 250 watts per channel at 8 ohms
  • EEEngine (Energy Efficient Engine) technology for high power output with half the energy consumption of conventional amplifier designs
  • Proprietary YS processing with dedicated on/off switch optimizes amplifier output for use with Yamaha Club Series speakers
  • Amplifier overload limiting protection circuitry includes power on/off muting, DC detection, thermal protection and current limiting
  • Variable speed fan cooling
  • Sweepable rear panel low end frequency control knobs, low cut/subwoofer filter switches
  • Rear panel stereo/bridge/parallel operation mode switch
  • Recessed front panel attenuator controls with protective cover
  • Front panel LED indicators for power, protection, temperature, YS processing, signal and clip
  • Vented front and rear panels

Warranty Information

This product has a limited warranty of 12 months.

Product Documents

User Manual

Key Features

  • Yamaha P2500S power amplifier: 250W at 8 Ohms for robust, clear audio performance.
  • Achieve pristine sound with a low THD of less than 0.1%, ensuring minimal distortion.
  • Versatile input impedance of 30K Ohms accommodates various audio source connections.
  • Experience superior signal-to-noise ratio of 100dB, eliminating unwanted background noise.
  • Benefit from reliable protection circuits, safeguarding your power amplifier from damage.
  • High damping factor of >200 ensures tight, controlled low-frequency response for your speakers.