Yamaha P2500S - Two Channel Power Amplifier

Yamaha P2500S - Two-Channel Power Amplifier (250W into 8 Ohm Stereo)

Yamaha P2500S - Two-Channel Power Amplifier (250W into 8 Ohm Stereo)

B&H # YAP2500S MFR # P2500S
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  • 1Description

The Yamaha P2500S is a rack-mountable stereo power amplifier for sound reinforcement applications offering 250 watts per channel at 8 ohms and a moderate weight for its size. The P2500S has been optimized for use with Yamaha's Club Series speakers and is equipped with a YS engagement switch, which activates proprietary circuitry that matches the output of the amplifier to the capability of the speakers; that being said, speakers from all other manufacturers are supported as well and the YS circuitry is defeatable.

Another exclusive feature of the P2500S is the EEEngine energy conservation design, which obtains the same full output that conventional amplifier designs offer, but with half the power consumption. This attribute, in conjunction with a full complement of thermal and limiting overload protection, allows for cooler, quieter operation and improved frequency response with minimized distortion. The P2500S has XLR and 1/4" balanced inputs and Neutrik Speakon, binding post and 1/4" speaker outputs for connection to almost any sound system.

The rear panel offers several filtering options, the YS activation switch, and a mode switch - the amplifier supports stereo, bridged, and parallel operation. There is a comprehensive group of bright, color-coded LED activity indicators, and the front panel channel attenuator knobs are thoughtfully recessed and protectively covered. Yamaha has built a lot of value into the P2500S and made it available to budget-conscious schools, club date musicians, and event facilities at a very reasonable price.

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
In the Box
Yamaha P2500S - Two-Channel Power Amplifier (250W into 8 Ohm Stereo)
  • Owner's Manual
  • 1 Year Warranty
  • Table of Contents
    • 1Description
    Output Power Rating @ 1kHz, THD=1%
    275W @ 8Ω Stereo (per channel)
    390W @ 4Ω Stereo (per channel)
    780W @ 8Ω Bridged-Mono

    Rating @ 20Hz - 20kHz, THD=0.1%
    250W @ 8Ω Stereo (per channel)
    310W @ 4Ω Stereo (per channel)
    620W @ 8Ω Bridged-Mono

    Rating @ 1kHz, 20ms Nonclip
    650W @ 2Ω Stereo (per channel)
    1300W @ 4Ω 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 @ 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 19 x 3.5 x 18" (483 x 89 x 457 mm)
    Weight 30.9 lbs (14 kg)
    Specialties Proprietary EEEngine Operating Efficiency Design
    Limiter Amp Protection Circuitry
    YS Processing
    Packaging Infouxvydzvxayreauzsvazbzfvdtydsb
    Package Weight 34.0 lb
    Box Dimensions (LxWxH) 22.5 x 22.0 x 8.0"
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