All TechWeek writers are indepentent and from many different countries. Some english misspelling and grammar mistakes may occur. Want to contribute? Join the team
Schiit Audio has released the Schiit Loki Max equalizer. The equalizer inherits the already well-known, simpler Schiit models like Loki Mini and Lokius: no graphic slide potentiometers, only rotary dials, which in Loki Max are complemented by a nice remote control in an aluminum case.
But the main thing is inside. Loki Max adjusts frequency response in six bands: 20 Hz, 120 Hz, 400 Hz, 2 kHz, 6 kHz and 16 kHz. Moreover, the depth of adjustment smoothly changes from ± 12 dB at the edges of the range to ± 6 dB in the middle. At the same time, SOI is promised in the entire frequency range not worse than 0.001%.
For this, only LC filters (capacitor-inductance) were used in the circuit, and custom coils with a nickel core were used for certain ranges. It all works in a fully discrete bipolar topology.
The cherry on the cake can be considered adjustments specially created for Loki Max branded 31-step relay potentiometers on thin-film resistors with a tolerance of 0.5% and 60 relays under custom firmware.
The result is an exact match of the parameters of both channels in any position. A C-Core 48 VA transformer was used to power the system. The module based on it provides ± 16 V and ± 32 V with double stabilization, plus a separate high-current 5 V power supply for the microprocessor and relay.