ACCUPHASE P-7500

High-End Balanced Stereo Power Amplifier

The Accuphase P-7500 is a high-end stereo power amplifier that sets a new standard in audio performance. With an impressive power output of 900 watts per channel at 2 ohms, 600 watts at 4 ohms, and 300 watts at 8 ohms, it ensures exceptional control and driving force even with the most demanding speakers. This amplifier offers exceptional versatility, allowing for different configurations to meet various listening needs. In bi-amping (dual mono) mode, it powers each speaker independently, expanding the soundstage and enhancing audio detail. Alternatively, the bridge mono configuration doubles the output power, making it ideal for driving subwoofers or center speakers with outstanding intensity.

The P-7500 achieves excellent sound quality thanks to its ultra-low distortion levels, with a total harmonic distortion (THD) of only 0.03% across a range from 4 to 16 ohms. This ensures a pure listening experience free from undesirable distortions. The intermodulation distortion is just 0.01%, contributing to an even more precise and detailed sound. The amplifier’s signal-to-noise ratio (S/N ratio) reaches up to 135 dB, providing a wide dynamic range that captures every nuance of the music.

The amplifier is built with advanced technologies to ensure remarkable performance. Its high-gain input stage, utilizing discrete, low-noise components, guarantees a clean and precise sound reproduction. The amplification stage employs MCS+ technology with two parallel circuits and ten pairs of bipolar power transistors, offering immense power and control. Additionally, the "current feedback" and "balanced remote sensing" technologies in the output stage provide a flat frequency response and ultra-low output impedance, allowing for precise speaker control.

The power supply of the amplifier is robust, featuring a large toroidal transformer and high-capacity electrolytic capacitors, ensuring stable and clean power distribution for optimal performance. The amplifier is also equipped with a protection circuit that uses certified MOSFET semiconductors, safeguarding it from short circuits and electrical anomalies.

The Accuphase P-7500 is a true work of art, combining cutting-edge technology, meticulous craftsmanship, and a deep commitment to delivering an exceptional audio experience. Whether used to drive high-end speakers or integrated into a complex audio system, it offers audio enthusiasts truly outstanding performance.

Technical Specifications:

• Power output: 900 watts per channel at 2 ohms, 600 watts per channel at 4 ohms, 300 watts per channel at 8 ohms
• Bi-amping (dual mono) support and bridge mono configuration option
• Total power output of 1800 watts at 4 ohms and 1200 watts at 8 ohms in bridge mode
• Variable gain with 4 positions:
  • Max, 28 dB
  • -3, 25 dB
  • -6, 22 dB
  • -12, 16 dB
• Total harmonic distortion (THD): 0.03% from 4 to 16 ohms
• Intermodulation distortion: 0.01%
• Signal-to-noise ratio (S/N ratio): up to 135 dB
• High-gain input stage with discrete, low-noise components
• Amplification stage with MCS+ (Multiple Circuit Summing-up +) technology and 10 pairs of bipolar transistors in Darlington push-pull parallel configuration with three stages
• Output stage with "current feedback" technology and "balanced remote sensing", ultra-low impedance, damping factor greater than 1000
• Power supply stage with oversized toroidal transformer and high-capacity filter capacitors (60,000 µF)
• Protection circuit with certified MOS-FET semiconductors for high-voltage operation, real-time detection of short circuits and electrical anomalies
• L/R balanced XLR and unbalanced RCA inputs
• Phase selector for reversing pins 2 and 3 of the balanced XLR connection
• Double set of speaker connectors
• Analog power meter outputs with logarithmic scale
• Dimensions (W x H x D): 465 x 238 x 515 mm
• Weight: 49 kg