Yamaha - AX450 Solid state integrated amplifier





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Yamaha AX450 integrated stereo amplifier, in excellent physical condition and tested and working, 65 W per channel at 8 Ω, weight 10 kg, includes power cable.
Description from the seller
Yamaha AX-450, in nearly perfect condition, a classic stereo integrated amplifier from the “Natural Sound” series. It is highly appreciated by vintage audio enthusiasts for its clean power delivery, excellent build quality, and the typical transparent sound that does not color the music artificially.
Main Technical Specifications
Key Features
FeatureSpecification
Output Power: 65 watts per channel into 8Ω (stereo)
Frequency Response: From 20 Hz to 20 kHz
Total Harmonic Distortion (THD): 0.015%
Damping Factor: 250 (indicating excellent speaker control)
Weight: 9.5 kg
Dimensions: 435 x 150 x 388.5 mm
"Pure Direct" Selector: A true Yamaha design hallmark. This function bypasses the bass, treble, balance, and loudness control circuits, allowing the audio signal to take the shortest possible path to minimize electronic noise or signal degradation.
Continuously Variable Loudness Control: Unlike most amplifiers that have a simple ON/OFF loudness switch, this model allows manual, precise adjustment of the high- and low-frequency balance, preserving a full, rich sound even at low listening levels.
Versatile Phono Stage: Includes an integrated phono preamplifier that supports both MM (Moving Magnet) and MC (Moving Coil) cartridges, a premium touch rather rare for mid-range amplifiers of that era.
Subsonic Filter: Helps eliminate very low-frequency rumble (often caused by slightly warped records), protecting the woofers from unnecessary strain.
Yamaha AX-450, in nearly perfect condition, a classic stereo integrated amplifier from the “Natural Sound” series. It is highly appreciated by vintage audio enthusiasts for its clean power delivery, excellent build quality, and the typical transparent sound that does not color the music artificially.
Main Technical Specifications
Key Features
FeatureSpecification
Output Power: 65 watts per channel into 8Ω (stereo)
Frequency Response: From 20 Hz to 20 kHz
Total Harmonic Distortion (THD): 0.015%
Damping Factor: 250 (indicating excellent speaker control)
Weight: 9.5 kg
Dimensions: 435 x 150 x 388.5 mm
"Pure Direct" Selector: A true Yamaha design hallmark. This function bypasses the bass, treble, balance, and loudness control circuits, allowing the audio signal to take the shortest possible path to minimize electronic noise or signal degradation.
Continuously Variable Loudness Control: Unlike most amplifiers that have a simple ON/OFF loudness switch, this model allows manual, precise adjustment of the high- and low-frequency balance, preserving a full, rich sound even at low listening levels.
Versatile Phono Stage: Includes an integrated phono preamplifier that supports both MM (Moving Magnet) and MC (Moving Coil) cartridges, a premium touch rather rare for mid-range amplifiers of that era.
Subsonic Filter: Helps eliminate very low-frequency rumble (often caused by slightly warped records), protecting the woofers from unnecessary strain.

