Overview

Knif BBD is a stereophonic analog bucket brigade device (BBD) delay. It is a no-compromise device rich in features. What sets it far apart from any other device in the market are the unique self-adapting anti-aliasing and reconstruction filters which provide the widest possible frequency response for any given delay time setting without any aliasing.

The unit features in total six 4096-step BBD ICs which results in maximum delay time of 600 ms for a stereo signal and 1200 ms for a mono source. The device has got seven operational modes for different effects and comes with a wide range of control signal inputs and internal control possibilities. The unit features a microcontroller for relay switching and timing tasks such as tap tempo and time division. However the signal chain and clock generation are fully analog and built using state-of-the-art components.

The other very unique feature to the device is a vacuum tube distortion stage located before BBD circuits. It consists of four NOS Special quality pentodes in total. The amount of distortion is continuously adjustable without affecting the overall signal level. In addition to this, the spectrum of the distortion can be selected.

Features

• Stereophonic analog bucket brigade delay with precision analog clock generators

• Variable frequency anti-alias and reconstruction filters for wide frequency response

• Advanced companders and careful clock signal handling for high signal-to-noise ratio

• Superb-sounding tube distortion stage for the delay path with four NOS SQ pentode tubes

• Six 4096-step BBD ICs for 20–600 ms (up to 1 200 ms in mono) delay time

• Seven different operational modes, including X-fed feedback signals

• Versatile LFO

• Tempo divisions

• Tap tempo and external sync

• Beautiful oiled walnut housing and color-filled engraved panels