ACCUPHASE P-7300

Second-hand. In excellent conditions. No signs of wear. Comes with original packaging and manual.

The P-7300 inherits the technologies and concepts of the 40th anniversary commemorative model A-200 and the subsequent M-6200, taking them to an even higher level. Some of the most notable features include a drastic reduction in noise and a significant improvement in the damping factor. In the final stage of the amplifier, the parallel configuration of output devices ensures high current capacity while keeping the output impedance extremely low. Furthermore, extensive research has led to an improvement in the feedback loop with remote sensing, using MOS-FET switches with low "on-resistance," further enhancing the ability to handle any speaker with ease.

Thanks to this advanced technology, the P-7300 is capable of delivering constant power, even with extremely low load impedances. The guaranteed damping factor of at least 1,000 demonstrates the effectiveness of this approach. Moreover, by further refining the parallel drive and gain allocation in the input stage, Accuphase engineers were able to reduce noise to unprecedented levels, achieving a signal-to-noise ratio of 125 dB at maximum gain and 131 dB at the -12 dB gain setting.

The P-7300 features a 10-parallel push-pull output configuration for each channel, delivering generous power even with extremely low load impedances as low as 1 ohm. The amplification stage uses a low-noise instrumentation amplifier topology, while the MCS+ circuit has been further refined to ensure top-tier performance. The current feedback principle provides a perfect balance between sound quality and total operational stability. Additionally, the bridged connection mode allows the amplifier to be upgraded to a monophonic version for those seeking even more power. The gain control is structured in four stages, and the newly developed, massive toroidal transformer with high power capacity completes the framework of this high-quality amplifier.

Technical specifications:

• 800 watts per channel at 1 ohm, 2x 500 watts at 2 ohms, 2x 250 watts at 4 ohms, 2x 125 watts at 8 ohms
• Bridged monophonic configuration option, for a total power of 1600 watts at 2 ohms (500 watts at 8 ohms)
• Variable gain with 4 positions (max/-3/-6/-12 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 131 dB
• Amplification stage with MCS+ technology and current feedback output stage with ultra-low impedance, damping factor greater than 1000
• Power supply stage with oversized toroidal transformer and high-capacity filter capacitors
• Protection circuit with MOS-FET semiconductors certified for extremely high operating voltages
• Phase selector to invert pins 2 and 3 of the balanced XLR connection
• Analog output power meters
• Dimensions (W x H x D): 465 x 238 x 515 mm
• Weight: 48.6 kg