Input impedance : 0

Output impedance : 47

Gain : 2 types to match the internal impedance of different cartridges 

 type A ( standard ) / type B ( high gain )

Dimensions : Model 4712 90 (w) x 100 (d) x 90 (h) mm

                        Mode 4700 130 (diameter) x 195 (d) mm

Copyright Konus Audio 2020 - All Rights Reserved

To communicate the wealth of vinyl

LP playback is fascinating in its rich presence and freshness of the sound. It quietly demonstrates superiority of its logical simplicity. However, we are not satisfied with the sound of today's LP playback systems; most of them sound too neat and clean, even tasteless, like distilled water. 

With Phonocube, our intention is to enhance the richness of LP sound, and differentiate it even more from the sound of a CD. 

The sound that Phonocube presents was the target when we were developing Flatfish and Progression.

Input impedance 0 ohm    

Most of currently available phono equalisers are designed to amplify the voltage that appears at both ends of a resistor when a current generated by the cartridge is carried to the ground through this resistor. Our Phonocube has a unique and original circuitry ( with input impedance of 0 ohm), which enables all of the current generated by the cartridge to flow directly into the amplifying circuit. 

Unique equalising circuit with advantages of both NF and CR types. 

Although NF type circuitry is known for its high S/N ratio, a rise in the high frequency is always inevitable. The unique equalising circuit of Phonocube allows the same level of high S/N ratio while maintaining the smooth and accurate equalising character of the CR type.

Extreme simplicity --- minimum circuitry

To preserve the freshness of the sound, we reduced the number of parts as much as possible, 25 per channel, and achieved the shortest signal pass length ever (44 m/m). 

Rigid and compact chassis construction

The chassis of Phonocube is constructed from two aluminium tubular frames ( 40 x 80 m/m section ) and front and rear panels of 10 m/m thick machined aluminium. Each circuit of left and right channels is encased in a separate chassis to eliminate interference between them and to achieve ideal dual mono structure.

Phono Cube has to be used with Model 4700 Humpty Power Supply 25W version (separate unit). By adding another Humpty Power Supply, Phono Cube becomes complete mono block operation.


Most of MC cartridges available in the current market are compatible with the standard version. For those cartridges with an extremely small output level and/or high internal impedance, we have the high-gain version. The standard version has 75dB and the high-gain version has 90dB of gain. Since it is a current amplification device with 0 ohm input impedance, output level is determined by the output amperage of the cartridge (output voltage divided by internal impedance). If you are not sure about which version suites better for your cartridge, please contact Konus Audio