Knifonium Modular 5U effect system with tube electronics

This system is the result of years of development. Each module is designed and crafted to utilise tubes, transformers and inductors to their full sonic potential. Discrete transistors and FETs and even IC operational amplifiers are used on the signal path where it does not make sense to use tubes due to limited space and total heat generation. Quality of parts is very high throughout and everything is built to be easily maintained.

We will provide more information about the system and pricing before Superbooth 2026.

Specifications

Power supplies: +/-18 V, +6.3 V, +12.6 V, 6.3 VAC, -120 V, +120 V, +250 V
Nominal signal levels: 5 V peak
Maximum signal levels: 15 V peak
Control signals: 5 V peak
Gates: 5 V
Triggers: 5 V, 20 μs minimum
Input impedances: 50 kΩ -100 kΩ
Output impedances: 100 Ω -2 kΩ
Reverb tanks: magnetically shielded, placed in the cabinet
Front panels: 4 mm aluminum, engraved and color filled
Power consumption: ca. 250 W for a full cabinet
Weight: 27 kg
Width: 475 mm
Height: 550 mm
Depth: 260 mm

Dual Mic Pre

2 channel tube mic pre with Lundahl input transformers and NOS tubes.

Dual Phaser

2 channel phaser using 6 tubes and 12 opto isolators for 6 stages phase shift networks. LFO with 0, 90 and 180 degrees phase shift for channel B.

Dual Filter Bank

Very special saturated inductor modulated filter bank with tube amps.

BBD Delay

Bucket brigade delay with great sounding tube distortion stages in the delay loop. Variable anti-alias filters for maximum frequency response through whole delay time range.

Spring Reverb

Stereo Spring reverb with mu metal shielded reverb tanks for very low hum and noise. Constant current and constant voltage driving modes. All tube amplification.

S&H+EF

Sample & Hold + Envelope Follower

Phones

Power Supply

Come to listen to the system at Superbooth 2026!
Knif Audio is located in Bungalowdorf (B056)

For sales in North America, contact GSF Agency