Technology

Each piece of equipment is the result of precise handwork, and the topology used is the result of tests and measurements.

PPB- Parabolic Power Bias™

Topology, patent applications in progress. It involves combating THD by controlling the power supply of power tubes without interfering with the main signal path by combining the use of:
1. Active dissipation stabilization (auto-bias) dependent on the power supply like balancing a ball on the top of a parabola.
2. Multiple local feedback, negative and positive. Thanks to this, we generate:
- low THD distortion in the bass range
- power dissipation stability 1000% better than "cathode-bias" with a tube rectifier
- reduced sensitivity to tube aging and mains changes in accordance with the PN-EN 60038:2012 standard
- minimization of the sonic impact of the "voltage sag" phenomenon that exists when using electron rectifier tubes.

SE- Hand wound with CNC

 Speaker output transformers hand-wound in house by our
specialist using a CNC machine. The windings of each pair are measured and calibrated for: impedance, resistance and capacitance. We use the highest quality Polish RZC wound-cut cores made exclusievelly to our order. Non-interchangeable in terms of crystal structure and mounting direction, they are rolled from Polish Hi-B steel with the highest magnetic permeability.

GNFB- No Negative Feedback

 By deciding on the luxury of giving up global feedback, we set the mutual harmonic content in the spectrum accordingly. We get contoured bass without sharpness of the treble, because we do not use deep global feedback (at all).

HMI - Safe hearing & system

We strive to focus our customers on sound by implementing features that are safer for your hearing and equipment:

- switching on at a safe volume level
- changing the sound source with a forced decrease in volume
- smooth increase in sound intensity after switching off the mute
- delay during switching on - tube pre-heating and automatic muting
- delay after switching off the device - cooling the rectifier before restarting
- TFT filling with a plate display effect in each menu
- Coherent, remote control with front panel operation using a single knob-button

Au- Immersion gold

PCB and SLT in ENIG finish, technology that allows gold to be deposited on PCB copper using a nickel sublayer. The basic thickness of Au gold for printed circuits is 25.4nm and for individual orders can be increased to 50.8nm. The process ensures high surface conductivity and good solderability. It makes copper resistant to ionic contamination and does not oxidize over time.

Ag 4.0% - Silver in the solder

For soft soldering we use mixtures of tin, silver and copper. We use the alloy containing 4% pure silver Ag and 1% copper Cu in points considered particularly important. On the other hand, the one containing 3% Ag and 0.5% Cu is used in other points. These solders are used in the automotive, military and medical industries. The material is lead-free and meets all mandatory requirements of the EU RoHS directive!

Cu 100%- Connectors 

 Meeting the expectations of experienced customers and opposing the trends of saving among competitors - we do not use brass. All RCA connectors and speaker terminals are made of copper. Sockets with PTFE Teflon insulation are silver-plated and then gold-plated. Speaker terminals with a PC polycarbonate cover are gold-plated.