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CAD - USB Filter – Noise Filtering Device

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Already love your USB cable? The CAD (Computer Audio Design) USB filter lets you keep it. It uses CAD technology based on the patented filter in the USB II-R cable and plugs directly into your DAC or streamer's USB input, so the noise is dealt with right at the door of your DAC.

Servers, streamers and computers are noisy neighbours, and that noise travels down the USB cable. The In-Line filter reduces high frequency noise on the data signals, +5V and signal ground, and CAD says placing it at the B end suits a wide variety of USB cable designs. It is a B-end filter with one female and one male USB B connector, which places it as close to the DAC as possible. CAD describes the result as more clarity, a larger soundstage and better timing and rhythm.

Fitting is simple. Plug your USB cable into the server, computer or streamer, attach the filter to the other (B) end, then push the filter's plug directly into the DAC's USB audio input. It can also be used on its own, with no cable attached, in any spare USB B port on a component, where it reduces noise on the +5V and signal ground of the USB interface. It isn't designed to be paired with the USB II-R cable, which already includes the filter. 

Key Features

• CAD noise reduction technology based on the patented filter in the USB II-R cable

• Works with a wide variety of USB cables (not for use with the USB II-R, which already includes the filter)

• Plugs directly into the DAC or streamer's USB input

• Reduces noise on the data signals, +5V and signal ground

• Can also be used on its own in any spare USB B port

• Ultra-thick gold-plated copper plug and socket for a low-impedance connection

• Hand-made acrylic case with vibration damping; hand assembled and individually tested in the UK

Technical Specifications

• Type: USB filter, B-end

• Connectors: 1 x USB B socket, 1 x USB B plug

• Contacts: ultra-thick gold-plated copper plug and socket

• Case: non-conductive acrylic, hand-made in the UK

• Placement: at the last connection from the server or streamer into the DAC

• Compatibility: a wide variety of USB cables and any USB DAC or streamer with a USB B input; not for use with the CAD USB II-R cable

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