ThermOs Microphone

Transformer tube microphone with 4V unbalanced line output, valve rectified power supply, 115- 230V autonomous incoming main power supply filtering, dual voltage low current circuit stabilisation, polarisation voltage 120V. The microphone is built around MULLARD ECC 88 value and U4:’7 and C12 microphone heads.   Three microphone directivity patterns available: Cardioid, Omnidirectional, Figure 8.   Also available: output level decrease Pad -2.6db, 6 discrete positions.   Gold- coated circuit board and 6% silver solder ensure precise conveying of dynamics and coloration of harmonies, high intelligibility and dynamic range.   The microphone requires no preamplifier and is connected directly to AD converter.   This shortens the path and allows minimising the emotional, tmbral and dynamic component losses in the musical content, which can take place while paling through additional devices.   The sound becomes very close and saturated. Alternatively, for artistic purposes the microphone can be connected via a line output to the compressor/ equaliser chain.   The built-in transformer load switching systems (three load options available) allows easy de-essing. without interfering with the rest of the sound range.   Listen to the samples:

Microphone Preamplifier Model II

Tube Transformer Microphone Preamplifier with input and output level discrete control and resistors and capacitors
used in audio path.
A8V stabilised power supply with in-phase and out-of-phase
115-230vV mains distortion filtering and internal board supply switching.
Discrete microphone input volume control knob developed by Work Recording Techknowledge (WRT) on the basis
of gold- coated ALPS rotate switch, high- precision carbon composition resistors on a golden board with 6% silver
solder allow to set input level precisely without interfering with the microphone timbral, dynamic and harmonic
The casing is made of 1.5 mm steel, which ensues good screening from external radio interference.
The main cable is made using WRT technology removing high- frequency distortion without chokes and capacitors.
Preamplifier output level is switched using ALPS golden contact rotary switch by changing output transformer taps.
Short audio path, resistor- free and capacitor- free audio signal path, gold- coated circuit board and 6% silver solder
ensure exact conveying of dynamics and harmony coloration of the musical content, high intelligibulity and dynamic
range of any instrument.
Thanks to the small size of the device you can easily carry it in a bag, take it with you to a performance, record session
vocals, guitar and other instruments using dynamic and condenser microphones.
Portability and quality of the device ensure the quality sound at all times.
The device is built around a single tube.
Estimated service life of the valve in daily use is 7 years.
Additional spare tubes available for order.

Discrete Monitor System

Discrete Monitor System based on ALPS gold rotary switch, carbon composition resistors on a golden board with 6% silver solder allowing precise rendering of musical material without introducing tmbral, dynamic and harmonic distortions, which is the main requirement for any professional monitor system. Wolk Recording Techknowledge (WRT) Monitor System allows monitoring four independent sources: stereo, mono, Pad -1Odb stereo, ms matrix – complete set of tools for mixing and music recording. Four stereo inputs: | – 3 stereo inputs – gold- coated composite jack, 4 stereo input – gold- coated RCA. Outputs: 1- 2 monitor outputs – XLR with golden contacts, 3 monitor output – stereo-jack L+R with golden contacts, 4 amplifier output for headphone L+R stereo- Jack with golden contacts. Additional option: Optional 25 pin subdub connector providing for additional RTA output and two additional stereo inputs. Using this additional option the Monitor System can mix six independent stereo inputs. Discrete volume control knob has 2.4 positions available as standard and 48 as an option. The volume knob is built around high- precision resistors (impedance matching 0,5%) with silver solder on gold board which ensures precise balance at any volume. Three monitor system designs available: embedded, rack, tabletop.


A device for audio signal saturation with even harmonics suitable for control of harmonic
distortion saturation level.
the device is also equipped with discrete volume control knob developed by Work
Recording TechKnowledge (WRT) based on gold- coated ALPS rotary switch, high-
precision carbon composition resistors on a golden board with 6% silver solder enabling
you to set input level precisely without interfering with the audio signal timbral and
dynamic coloration.
The device is used for synthesiser and any linear signal connection, as in INSERT to add
vividness and harmonic coloration to drum samples and VST- instrumentals.
Also used for master- track final processing.
The saturator can be used both in studio and concert environment.
The device operation quality is ensured by the application of gold- coated board with 6%
silver solder.

Magick  Preamplifier

Di- Box instrument preamplifier features external power adapter for maximum Noise- to- Sound ratio. The device is designed for connections of all types of electric guitars, piezo sensor instruments, all types of Rhodes Piano,Klavinet, etc., also can be used as a matching link between instrumental radio channel and effectors (Deelay, Chorus, Rev, etc.) providing reamping , matching the signal level and load. DI preamp has two independent inputs with different sensivity: Output No.1 1:1; Output No.2 1;2 for audio card connection to the line input. Gold- coated circuit board and 6% silver solder used in the device ensure exact conveying of dynamics and harmonic colouring of the musical content, high intelligibility and dynamic range of any instrument.. The device is built around ECC82 tube. Mullard tube use possible. The diagrams show additional device usability in studio and concert work. We recommend using Wolk Recording TechKnowledge (WRT) Filter Cable, which effectively removes in- phase and Out- to- Phase mains distortions.


Rubidium WordClock design is based on rubidium tube resulting in minimal timing error
(1s accumulating per 1000 years).
The device features Hi- End components, gold- coated board with 6% silver solder.
There are two discrete outputs at BNC frequency at 48 kHz and 96 kHz.
We recommend to use Wolk Recording TechKnowledge (WRT) BNC- wires.