A75 Pure Class A Stereo Post Amplifier, Accuphase A-75 HIFI Home High-end Audio Sound Amplifier, 120W*2 Power Amplifier

The A-75 includes an upgraded version of the "MCS+Circuit" primary slow charging amplifier circuit equipped with "MCS" and an improved version of the multi-stage Parallel circuit design, combined with current feedback design, ensures linear response of each level. The amplification unit circuit is connected in parallel to reduce noise. A DC stabilized power supply is installed in the drive section and MCS+circuit to improve SN ratio and enhance sound purity.

The high-efficiency large transformer is housed in a metal cover and equipped with a "super large pond" filtering group to provide sufficient and stable power supply.

The amplifier part adopts a fully balanced amplification circuit design, and each channel uses 12 high-power field-effect transistors as amplified outputs to achieve high-quality and high driving force.

Provide true power amplification outputs for pure Class A 60W x2 (8Ω), 120W x2 (4Ω), 240W x2 (2Ω), and 480W x2 (1Ω). Provide powerful power output and super strong driving capability.

A-75 Technical Parameters:

1： Rated continuous output power (20HZ-20000HZ)

Pure Class A: Stereo  480W X2 1 ohm output

                                    240W X2 2 ohm output

                                    120W X2 4 ohm output

                                    60W X2   8 ohm output

Fully balanced bridge: 960W X2 2 ohm output

                                    480W X2  4 ohm output

                                    240WX2   8 ohm output

2： Frequency response:
20-20, 000HZ +0 -0.2db

                      1W output: 0.5-160, 000HZ +0 -3 db

3: S/N signal-to-noise ratio. Full frequency 118db

4： Total harmonic distortion: 0.05~2ohms. 0.01%~8ohms

5： Input impedance:
40K (balanced input), 20K (RCA input)

6： Input sensitivity: 0.87V rated continuous average output

                                  0.11V outputs 1 watt of power

7：                                Gain: MAX -3dB-6dB -12Db

Corresponding magnification: 28     25      22     16

8： Damping coefficient: 1000

9： Magnification factor: 28dB

10： Static power consumption: 260WTMaximum power consumption520W

11： Overall dimensions: 430W*225H*5005mm

12： Net weight: 28 (kg)

1. SPEAKERS speaker output conversion: OUT-A speaker A group connection

There is a sound coming from the wiring post, and there is a sound coming from the wiring post of OUT-B speaker group B,

There is sound coming from both sets of terminals of OUT-AB speaker AB, OFF

All terminals are silent.

2. WMeter RANGE level indicator light strength conversion: 10W

Select for low volume input and 100W mid-range volume input

Used for 1000W high volume input.

3. POWER machine power on key: When pressed in place, self-locking occurs

It is in the power on state. Press the button again in the power on state to reverse it

After bouncing in place, it is in the shutdown state.

4. IRPUT key: When the IRPUT key is pressed and locked in place, the panel

When the LINE light is on, it indicates that the RCA signal input is conducting. Press it again

The IRPUT button indicates a balance signal when the BALANGED light on the panel is on

Input continuity.

5. GAIN signal input roll off: mainly for signal source output

The sound is too loud, and there is no roll off of the input signal when MAX is selected,

You can choose to roll down by 3db- 6db，- 12dB.

Operation switch: When the Operation switch is switched to

BRIDER is the signal input when the amplifier is bridged (the BRIDGE light on the panel is on,

Speaker connection method during bridging: Connect the positive terminal of the speaker to Group A LEFTL red wire

Column, connect the negative terminal of the speaker to Group A with a red terminal (RIGHT)

When the ACTION switch is switched to NORMAL, it indicates that the amplifier is not bridged

Signal input (panel bridge light off).