STEREO TUBE DIGITAL/ANALOG CONVERTER
MODEL:
DIGICODE 2.20 and power supply unit MODEL:
PSU-220
The DIGICODE 2.20 is our digital to analogue converter with
analog section and output post filter with tubes triode in
class A.
DIGICODE and DIGIDRIVE formed a perfectly high quality no
compromise C.D. player system at any level of price in top
audio area.
The input digital design of DIGICODE is optimized for to
give very low value of jitter, for resolve this problem we
employ a special circuit with select XTAL CLOCK similar
install on CD transport and a double reclock PLL inside.
Of course our sound quality stay in valve triode stage
because we use our proprietary I / V converter and our
special passive output filter.
No phase rotation and no phase distorsion,but only the pure
sound music of class A tube output stage.
The digital section is based on selected DAC @ 20 bit PCM63
Burr BROWN K-selection dual mono type and a digital filter
@ 8 times oversampling with digital filter selectable from
low taps and high taps by user.
- Digital input section by pulse transformer for two SPDiF (RCA+BNC) one AES/EBU (XLR)
- Automatic frequency switching : 32Khz/ 44.1 Khz / 48 Khz
- Re-clocking dac's for maximum resolution
- Compatible with professional/broadcast standards
- Sophisticated Master Clock Regeneration with two phase locked loops (PLL)
- 20 bit 8 times oversampling filter with possibility to change the TAPS by owner with internaly microswitch
- NO feedback control on tubes circuity local or total.
- Three separate power transformer ANALOG and DIGITAL 1 and DIGITAL 2
- Eight power supply regulators
- Only premium grade components and Tube Triode
- Hi quality RCA and BNC connectors (SPDiF) XLR connector for AES-EBU
- Comes supply with cherry wood veenering for later sides/ black plexiglass
- Separate power supply unit model PSU-2.20 with independent three section power switch (three power transformer)
DIGICODE 2.24
Digital to analog convertor
24 bit 96 khz multibit, multivel digital
analog convertor, fully balanced with tube analog output.
Lector proudly introduces the all new Digicode 2.24 digital
to analog convertor with tube analog output featuring full
balanced circuity from digital input (Aes-Ebu XLR) to
analog output (XLR audio analog). Audio analog output is
based on four double triode on class A configuration
circuit.
Digital to Analog convertor adopt the multibit DAC PCM-1704
from BB (no the economical sigma delta dac) four dac and
four tubes: they are electrical connected without any
coupling capacitors (DC connect) the dac works as
differential mode so the balanced signal is generated from
the digital source.
We have set-up by trimmer the critical single MSB on DAC
for obtain highest real resolution . With special digital
filter is possible to choice the right number of
coefficients and slope for better listening choice as sound
preference.
The analog output section uses selected 4 double
triodes in pure class A ( 4 tubes ECC-81 or 12AT7) . Tubes
are selected for lowest noise and tuning trimmered for
precision voltage output.
The conscruction of Digicode is modular: with three
removable cards is easily replaceable in case of future
upgrading for new technologies the individual form. A
separate power supplu unit reduce the noise floor and
magnetic influence to the circuit.
A digital circuit with recovey double PLL oscillator supply
stable and precision LOCK-ON with perfect matching with our
Digidrive CD-Transport
Sonic performance delivers pure enjoyment: thanks to the
low noise printed circuit board design as real star ground.
What you listen is just the sound of your favourite tubes
operating with exceptional linearity in a class A gain
stage.
