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

Model #P2500S

Yamaha p2500s 1
Yamaha p2500s 1
Yamaha p2500s 2
Yamaha p2500s 3
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Packaging Info

Package Weight 34.0 lb
Box Dimensions (LxWxH) 22.5 x 22.0 x 8.0"

General Information

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 Speakon2 x 5-way Binding Post2 x 1/4" (6.3mm) Phone
Output Power Rating @ 1kHz, THD=1%275W @ 8Ω Stereo (per channel)390W @ 4Ω Stereo (per channel)780W @ 8Ω Bridged-MonoRating @ 20Hz - 20kHz, THD=0.1%250W @ 8Ω Stereo (per channel)310W @ 4Ω Stereo (per channel)620W @ 8Ω Bridged-MonoRating @ 1kHz, 20ms Nonclip650W @ 2Ω Stereo (per channel)1300W @ 4Ω Bridged-Mono
Controls (Rear) 1 x Stereo/Bridge/Parallel Mode Switch2 x Subwoofer/Low Cut/Off Filter Switches2 x 25Hz - 150Hz Frequency Control Switches1 x Yamaha Speaker Processing On/Off Switch
Indicators 1 x Green Power On LED1 x Red Protection LED1 x Red Heatsink Temp Overheat LED1 x Yellow YS Processor LED2 x Green Signal LEDs2 x Red Clip LEDs
Cooling Dual Variable-Speed Fans
Power Consumption Idle: 25W1/8 (4 ohms): 320WMaximum (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 DesignLimiter Amp Protection CircuitryYS Processing
Controls Front Panel 1 x Push On/Off Power Switch2 x 31-Position Attenuator Knobs
Damping Factor Greater than 200 (8 ohms, 1kHz)
User Reviews
Audio review.32818415
26 February 2011

By accedent i test this amplifier with normal audio from CD.( I used this amplifier before only for instruments and vocals). It sounds much much much better then my Yamaha AX 1070 series. It sounds crystal natural with a great scene.

1 March 2014

These amplifiers are superb. The sound is crystal clear at all volumes, and they are built to last. I would recommend them to anybody who is looking for a high quality PA.

Audio review.32818415
12 December 2009

Great sound for the money. It has stood right along side my high-end amps,and has always performed extremely well. The 3-year warranty is as good as you'd get from most other makers,and there's no need to pay at least $1200.00 USD to get it!

Audio review.32818415
16 October 2006

My first impressions: Oustanding, gorgeus, audiophile sound...the price is very low for this quality Soon I write more opinions

  • +

    Smooth, controled warmth, roll-off of treble (I like), very good and stable image, tight bass, with no more than a week of use...I need to run others hours more (100 to 200) for a complete review...

  • -

    ¿ treble ? Maybe, but I like the performance of highs.. Perhaps with a touch of treble control from preamp or mixer

Product Highlights
    In The Box
    • Yamaha P2500S - Two-Channel Power Amplifier (250W into 8 Ohm Stereo)
    • Owner's Manual
    • 1 Year Warranty
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