Benz Micro Lukascheck PP1 MC Transformer (with RIAA Equalizer)

Benz Micro Lukascheck PP1 MC Transformer (with RIAA Equalizer) By using only 2 transistors in each amplifier stage, perfect stability and extreme fast transient response is achieved. This provides the high degree of transparency and accuracy of the PP-1. High quality double-sided glass epoxy circuit boards with carefully designed topology (CAD) have been applied in order to ensure shortest possible signal paths. Low noise matched bipolar transistors were selected for this purpose. All resistors are high quality metal film with 1% tolerance. Within the RIAA network, only 1% polystyrene capacitors have been used, with high quality metalized plastic-film capacitors in the coupling function. This stage is also individually regulated with discrete transistors in a constant-load configuration. Lukaschek finds this new regulator, in conjunction with his polarity inverting RIAA filter, yields reduced distortion and a more exact implementation of the RIAA equalisation curves. The increased resolution afforded by these improvements exposed previously audible artifacts due to circuit board layout. Lukaschek then spent a number of months optimising component placement and circuit-board trace layout, before the final revision was complete. IMPROVEMENTS Slightly warmer tonal balance More resolution and extension Bass is bigger and more solid; highs are effortless, open, transparent and totally devoid of smearing. Focus, soundstage, depth and dimensionality improvements SPECIFICATIONS: RIAA equalization /- .5 dB Integrated rumble filter 10 Hz (-1 dB @ 20 Hz) Gain at 1 kHz 1,280 (62 dB) Crosstalk Below measuring range Signal to noise ratio (.5 mV, 0 ohm) 82 dB (IHF “A”) Maximum input voltage 5 mV (1 kHz) Input impedance 22k ohms How to find us Contact Us to book a demo in our Elland Listening room. Burley Street, Elland, HX5 0AQ Phone: 01422 250590 Email: [email protected] Ask a question Your Name (required) Your Email (required) Your Message