:: No negative feedback; :: Controlling of intensity the tubes sound; :: High slew rate that prevents odd order distortion; :: Current-on-demand at the output (current output); :: Measurements at a load of 32 Ohm, Input 0,3 V => Output 0,6 V;
:: Measurements at a load of 310 Ohm, Input 0,3 V => Output 2,2 V;
:: Frequency Response: 10 Hz ... 40 kHz => Diff < 0,5 dB; :: Dynamic range at 1 kHz is better than 105 dB; :: Interferences at 50 Hz, 100 Hz, 150 Hz better than -89,3 dB; :: WIMA capacitors in the signal path; :: Output stage SRPP on tube ECC99 present high power; :: For headphones with an impedance of 30 up to 600 Ohms; :: Modern vacuum tubes of new production: ECC83 + ECC99 x2
Key features of the RIAA tube preamplifier:
:: Input: MM Cartridge (2,5 V.... 7,5 mV RMS);
:: Input impedance: 47 kOhm; 0-100-150-250 pF;
:: Gain: 42 dB at 1 kHz; :: Output impedance no more than 5 kOhm;
:: Noise at 1000 Hz better than -95 dB; :: WIMA capacitors in the signal path; :: Mica capacitors to get the RIAA curve; :: RIAA curve deviation: less than +/- 0.5 dB :: Passive filter mode for RIAA equalization; :: The input stage is based on SRPP design; :: No negative feedback; :: Modern vacuum tubes of new production: ECC83 x3 + ECC82
:: Headphone: stereo jack 6,3 mm; :: MM cartridge, RIAA, AUX: RCA cinch gold-plated;
:: Power cold device socket with protective contact; :: Voltage power 230 Volts, 50/60 Hz; :: Power consumption: 65 watts around.
:: Front panel: oak; :: Aluminum housing with dimensions: :: L x H x B: 470 x 270 x 90 mm around; :: Fan: Noctua NF-A6x25 FLX; Max. noise emission: 12.9 dB(A);
:: MTBF (Mean Time Between Failures): 150.000 hours; :: Weight: 5,4 kg around.