Audiophilepure

https://www.audiophilia.com/reviews/2026/5/23/staccato-audio-black-unique-bu-01-amplifier

Serious and simple-looking, it has a meticulous metal chassis with ample black grills on the right and left sides and small holes in the top plate (in an attractive swirling design with a large “S” in the center), all of which help it cool down when in use. The front has two large metal knobs: the left one for VOLUME/POWER, the right one for INPUT/DIMMER. Near the top of the front, “staccato” is sketched in large white letters; near the bottom, in small letters, is sketched “BU-01” with “BLACK UNIQUE” beneath it. You can choose from among 10 different color configurations for the knob and chassis. My unit was grey with black knobs. 

Pressing the left knob turns the power on, and the volume levels are etched to its right in small white numbers from 10 to 100, in multiples of 10, with tiny lights above each number. Once on, the amp slowly and automatically cycles through the numbers up to 90, making clicking noises along the way, then snaps back to 10 (or whatever level you left it at when you last turned it off). A soft-start warm-up. The right knob controls small white numbers 1 to 6 representing the line inputs, with the current line in use having its tiny light lit up. Turning the left knob controls the volume, while turning the right knob controls the line in use. The tiny lights can be dimmed by using the right knob. But the unit comes with a well-made, simple-to-use heavy-metal remote control that fits in your hand (see the photo below). In general, I used the remote because of its simplicity and convenience, and it has a mute button

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