QUAD 405

Pre owned. In fair condition. Shows several signs of wear. Does not include original packaging.

The Quad 405 is a two-channel power amplifier, designed to meet the needs of both home and professional use. At the heart of its operation lies the innovative current dumping technology, an engineering solution that brilliantly overcomes many of the issues traditionally associated with transistors, ensuring pure and uncompromising sound reproduction.

Its generous power output makes it the ideal partner for driving the vast majority of today's high-quality loudspeakers. This feature not only enhances the performance of existing models but also opens up new perspectives for future loudspeaker design, freeing engineers from the obsession with efficiency and allowing them to focus on other aspects of sound reproduction.

In everyday use, the Quad 405 can be paired with the renowned 33 control unit or any other preamplifier of equal quality, forming a cohesive and refined listening system. The aesthetics faithfully follow the brand's design philosophy, inheriting that functional and practical simplicity which, in past models, earned Quad awards and worldwide recognition.

The physical construction of the amplifier is the result of a careful manufacturing process combining castings and extrusions. The result is a unit with a unique tactile quality, extremely robust yet at the same time pleasing to the eye and to the touch, capable of integrating elegantly into any setting.

It is important to note that not all speakers on the market can safely handle the high power delivered by the 405. For this reason, the amplifier is equipped with an internally fitted power limiter, a protection feature that can be activated to adapt the output for more delicate speakers. In this protected configuration, even the iconic Quad electrostatic loudspeaker can be used with complete safety, allowing the user to fully enjoy the amplifier's quality without any risk.

Technical specifications:

• Power output: 100 watts per channel into 8Ω (stereo)
• Frequency response: 20Hz to 20kHz
• Total harmonic distortion: 0.05%
• Input sensitivity: 0.5V
• Signal to noise ratio: 95dB
• Speaker load impedance: 4Ω to 16Ω
• Dimensions: 115 x 340.5 x 195mm
• Weight: 9kg