The P-7300 inherits technology features and concepts of the 40th anniversary commemorative model A-200 and subsequent M-6200, and takes these even further. Some of the highlights are a drastic reduction in noise and a significant further improvement of the damping factor.

In the final stage, the parallel configuration of output devices ensures high current capacity and keeps the output impedance of the power amplifier extremely low. In addition, intensive research has culminated in an improved NFB loop with remote sensing, and the use of MOS-FET switches characterised by low ‘on-resistance’.
This further improves the ability to handle any speaker with competence, realising constant-voltage drive even with extremely low load impedances. The guaranteed damping factor of at least 1,000 demonstrates the impressive success of this approach. In addition, by further refining the parallel drive and gain allocation of the input stage, Accuphase engineers were able to push the noise floor to previously unthinkable levels, achieving an amazing signal-to-noise ratio of 125 dB at maximum gain and 131 dB at the 12 dB gain setting.

Warranty:

1-year manufacturer’s warranty

Features:

  • Output stage with 10-parallel push-pull arrangement in each channel delivers ample power down to extremely low load impedances of 1 ohm
  • The amplification stage features a low-noise instrumentation amplifier topology
  • Further refined the MCS+ circuit
  • The current feedback principle combines excellent sound quality with total operational stability
  • Bridged connection mode allows upgrading to a monophonic amplifier
  • 4-stage gain control

Technical Specifications:

Continuous Average Output power (20-20,000 Hz) Stereo Operation (both channels driven:

800 W/ch = 1-ohms load *

500 W/ch = 2-ohms load

250 W/ch = 4-ohms load

125 W/ch = 8-ohms load

Monophonic Operation:

1600 watts = 2 ohms load*

1000 watts = 4 ohms load

500 watts = 8 ohms load

Notes:

Ratings marked. with * are for music signals only
Total Harmonic Distortion Stereo operation ( both channels driven )

0.05% with a 2-ohm load

0.03% with a 4 to 16-ohm load

Monophonic operation (bridged connection)

0.05% with a 4 to 16 ohm load
Intermodulation Distortion 0.01%
Frequency Response At rated continuous average output: 20 – 20 000 Hz + 0 – 0.2dB

At 1 watt output: 0.5 – 160000Hz +0 – 3.0dB
Gain 28.0dB ( GAIN selector in MAX position)

(Stereo/monophonic operation)
Gain Selector -12dB, -6dB, -3dB, MAX
Output Load Impedance Stereo Operation: 2 to 16 ohms

Monophonic Operation: 4 to 16 ohms

* With music signals only, 1-ohm loads are permissible for stereo operation and 2-ohm loads for monophonic operation.
Damping factor 1 000
Input Sensitivity ( with 8-ohm load) Stereo Operation

1.26V for rated continuous average output

0.11V for 1 watt output

Monophonic Operation

2.52V for rated continuous average output

0.11V for 1 watt output
Input Impedance Balanced: 40 Kilohms

Line (unbalanced): 20 Kilohms
Signal-to-Noise Ratio

(A-weighted, with input shortened)

 125dB (GAIN selector in MAX position)

131dB (Gain selector in -12dB position)

At the rated continuous average output
Output Level Meter -40 dB to +3dB (indication in dB and %)

Logarithmic scale, with illumination off switch and sensitivity Peak hold time switchable 3s, infinite
Power Requirements 120/220/230 V AC, 50/60 Hz (Voltage as indicated on rear panel)
Power Consumption 117 watts idle

820 watts in accordance with IEC 60065
Maximum Dimensions Width: 465mm (18.31″)

Height: 238mm (9.37″)

Depth: 515mm (20.28″)
Mass 48.6kg (107.2 lbs) net

58.0kg (127.1 lbs) in shipping carton