Amplificator de putere Accuphase P-7300

Full Description

Overview

A Stereo Power Amplifier That Towers Over the Rest Witness the ultimate in Class AB topology. Bringing together the best of Accuphase technology and sonic expertise, the P-7300 stands out both in terms of performance and sound quality. The instrumentation amplifier principle realized in an ideal fully balanced configuration ensures S/N ratio second to none. Plenty of muscle from the output stage is sustained by a newly developed power supply, resulting in impeccable speaker drive that opens up a new chapter in the art of music reproduction.

 

Specs

Continuous Average Output Power (20 – 20,000 Hz):

Note: Load ratings marked (＊) apply only to operation with music signals.

Stereo operation 800 watts per channel into 1 ohm (＊)

(both channels driven) 500 watts per channel into 2 ohms

250 watts per channel into 4 ohms

125 watts per channel into 8 ohms

Monophonic operation 1,600 watts into 2 ohms (＊)

(bridged connection) 1,000 watts into 4 ohms

500 watts into 8 ohms

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, –0.2 dB

At 1 watt output:

0.5 – 160,000 Hz +0, –3.0 dB

Gain:

28.0 dB (GAIN selector in MAX position)

(Stereo/monophonic operation)

Gain Selection:

–12 dB, –6 dB, –3 dB, MAX

Output Load impedance:

Stereo operation: 2 to 16 ohms

Monophonic operation: 4 to 16 ohms

Damping Factor: 1,000

Input Sensitivity (with 8-ohm load, GAIN selector in MAX position):

Stereo operation: 1.26 V for rated continuous average output

0.11 V for 1 watt output

Monophonic operation: 2.52 V for rated continuous average output

0.11 V for 1 watt output

Input Impedance:

Balanced: 40 kilohms

Line: 20 kilohms

Signal-to-Noise Ratio (A-weighted, input shorted):

125 dB (GAIN selector in MAX position)

131 dB (GAIN selector in –12 dB position)

Output Level Meters:

–40 dB to +3.0 dB (indication in dB and %)

Logarithmic scale, with illumination off switch and sensitivity

Peak hold time switchable 3 s, ∞

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