YAMAHA AX-590
¥ 49,800 (released in 1995)
Commentary
This pre-main amplifier is compatible with 20 bit digital sources.
Equipped with a CD direct amplifier, CD playback with less degradation is possible.
In this system, a low-noise amplifier is installed immediately after the input terminal to improve the S/N ratio at the volume actually used by 10 dB. In addition, the impedance is also reduced, making it less susceptible to external noise.
The AX-590 uses a 2-parallel push-pull circuit that connects two elements in parallel to this amplifier, enabling a more comfortable drive even during large signals.
A unique linear damping circuit is used. In this system, a stable damping factor is obtained by thorough measures to reduce internal impedance, such as the use of extremely thick wires, so that a stable drive is possible regardless of the type or characteristics of the speaker.
The power supply section uses a strong LiD (low impedance drivability) power supply that employs a large transformer and a large capacity electrolytic capacitor.
Equipped with a pure direct switch, the input can be directly connected to the power amplifier by bypassing circuits such as tone control.
The power amplifier is designed to be symmetrical from the input terminal to the output terminal. By reducing interference, the noise and distortion are suppressed.
Equipped with a continuous loudness circuit.
Equipped with a pre-main coupler, the preamplifier section and power amplifier section can be used independently.
It comes with a system remote control that can operate Yamaha components.
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Model Rating
| Type | Pre-main amplifier |
| Rated Output (20 Hz ~ 20 kHz) | 120W + 120W (6 Ω, 0.03% strain) |
| Dynamic Power | 290W + 290W (2 Ω) |
| Frequency characteristic | 20 Hz to 20 kHz ± 0.5 dB |
| Signal-to-noise ratio | Phono MC:70dB Phono MM:86dB CD, etc : 110 dB |
| Damping factor | 320 (20 Hz ~ 20 kHz, 8 Ω) |
| Accessory circuit | Tone control Continuous loudness Pre-power independent |
| Pwer | 100 VAC, 50Hz/60Hz |
| Power consumption | 180W |
| External dimensions | Width 435x Height 146x Depth 388.5 mm |
| Weight | 10.4kg |
| Attachment | Wireless Remote Control |