KJ West One - Connoisseurs of Sound - Est. 1965
KJ West One - Connoisseurs of Sound - Est. 1965

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Expert 440 Pro Dual


The Devialet 400 is the most comprehensive and high-performance dual-mono model. Extreme power (400 W), an inexhaustible wealth of adjustable parameters and unsurpassed performances (THD + N 0.00025%), the Devialet 400 finally enables you to make the transition to a system comprised of two power blocks.

In this configuration, the Devialet 400 offers you unequalled musical resolution and beats every record. Devialet's technology is magnified through its operation in mono-block mode via a dedicated power supply and an ADH core for each channel.

The power supply and balanced converter dedicated to each speaker offer you more power and greater dynamics, most notably by way of SAM® technology the use of the Devialet 400 in mono-block mode enables the elimination of the current return from the total mass and the further improvement of the performance of the DAC "Magic Wire" and  analogue inputs (THD + N 0,00025%). The dual-mode also reduces signal jitter for all digital inputs. All signals are over-sampled to 384khz via a unique set-up that uses the potential of the DAC "Magic Wire" to its utmost on each unit.

The Devialet 400 is the dual mono-block system that you have been waiting for. This product occupies the first rank in terms of performance, ease of use and compactness, and enables you to control any speakers on the market with disconcerting ease.

The Devialet 400 is pre-configured for dual mono mode. However, there is nothing stopping you from enjoying the other amplification modes enabled by the internal software within each of the Devialet 200 devices.

Connect two, four, six or up to eight Devialet devices to expand your system according to your wildest desires.

Active multi-amplification enables you to manually set the parameters of your cross-over filters to adjust them to your speakers and achieve a configuration that meets all of your requirements.

The master device is an utter Devialet 200 that is pre-configured as an ultra-powerful 400W mono bloc. Thus, it can be used as a stereo device through a new configuration for a stereo system or a multi-amplification system.

The companion is the second Devialet 200 required for a Dual-Mono configuration.It is equipped with all technologies, inputs and features of a master device (except the WiFi card). Therefore, it can also be configured as a stereo device for a multi-amplification system.

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