Yamaha PD2500 Professional Power Amplifier

The Yamaha PD2500 is a professional stereo power amplifier designed to deliver strong output, clean sound, and dependable performance in a compact, lightweight rack-mount format. Introduced in 1986, it combines Yamaha’s pro-audio engineering with high output capability, low distortion, quiet cooling, and a regulated switching power supply for stable performance across demanding audio applications.

As Yamaha officially describes it: “High output and sound quality meet compact and lightweight size in this power amp. This brings high output with low distortion, while a silent fan and a well-regulated switching power supply are used in playing a wide range from dynamic sounds to delicate, nuanced expressions.”

Key Features

• Professional stereo power amplifier
• High output with low distortion
• Compact and lightweight 2U rack-mount design
• Silent fan cooling system
• Well-regulated switching power supply
• Suitable for live sound, studio monitoring, installations, theaters, and PA systems
• Built for dynamic sound reproduction as well as detailed, nuanced audio expression

Technical Specifications

• Model: Yamaha PD2500
• Type: Professional stereo power amplifier
• Year: 1986

• Rated Output, Stereo:

  • 250 W + 250 W at 8 Ω
  • 360 W + 360 W at 4 Ω
  • 500 W + 500 W at 2 Ω

• Rated Output, BTL Mono:

  • 500 W at 16 Ω
  • 700 W at 8 Ω
  • 1000 W at 4 Ω

• Frequency Response: 20 Hz – 50 kHz, stereo

• Total Harmonic Distortion: 0.007% or less, stereo

• Signal-to-Noise Ratio: 115 dB or higher

• Damping Factor: 250 or higher

• Slew Rate: ±55 V/μs stereo, ±110 V/μs BTL mono

• Power Consumption: 680 W

• Dimensions: 480 × 97 × 480 mm

• Weight: Approx. 12 kg

• Rack Size: 2U / 19-inch rack compatible

The Yamaha PD2500 is a solid choice for users who need clean, powerful amplification with professional reliability. Its combination of high power, low distortion, quiet operation, and compact construction makes it especially well suited for professional audio systems where clarity, headroom, and durability are essential.

Owner's manual