s e r i e s n r. 5 ( y e a r september 2006 )
update new dac 24 bit PCM-1704
W hen the perfect mechanical solution join original electronic design born a superior cd player class A product.
The circuity of power supply employ 14
regulation stages , only
one capacitor on signal path as film & foil custom made, special material chassis by aerospace alluminium die-cast. The output tube triode circuity is in class A
with only one passive first order filter so do not have indesiderate rotative
The CD mechanism have two different solution of mechanical damping:
A original magnetic clamp system give more stability to the rotation the CD disc so to have the double stabilization on two axis: orizzontal and vertical.
C O N V E N I E N C E A N D P E R F O R M A N C E
S P E C I F I C A T I O N
|Type||Top Loading CD player tube analog|
bit PCM-1704 dual mono oversampling by
and NO data L/R shift phase
|S/N ratio||105 db|
|Distorsion||0.1% THD or better|
|Frequency response||20-20khz (with gently slope filter)|
|Output impedance||150 ohm 3.0 volts rms (2.5
The output voltage is measured at 0 db test cd disk
The music cd disk have output rathed at 200-500 mV
so the CDP-7 can interface ANY preamplifier or amplifier without NO input saturation
|Power supply||220-240-120-100 vac (separate box model PSU 3)|
|Dimension CDP 7T||400x115x300 (lxhxp)|
|Dimension PSU 3T||225x85x300 (lxhxp)|
PSU3T= 3 kg
READ THIS IMPORTANT DESIGN ORIGINAL SOLUTION
|Chassis||Machined alluminium die cast chassis|
|CD-TRANSPORT Laser assembly||Lector design proprietary mechanism made from alluminium one shot construction, brass pillar and solid plexiglass as mechanical isolated filter from chassis ground|
|Magnetic Clamp||Made by special delrin with isolated viton rubber control resonance and neodinium magentic puck|
|Jitter control||By own design servo board ( no economical pre-assembly kit's) by selecting XTAL oscillator work as "suspended mode" data digital signal leaves as full integrity and channel switch is on latch digital signal, own proprietary software control firmware|
|Power supply||Separate box include 3 power transformer so reduce magnet flux, passive AC mains filter included , CDP-7 main unit uses 14 local voltage regulators|
|Digital filter section||By D.S.P. (digital signal processor) as low taps, phase correct, 18 bit interface real data transfer resolution to DAC interface|
|Analog filter section||Minimize phase distorsion and phase rotation design only simple first order passive filter, D.S.P. make the 99% reduce jitter noise|
|DAC power supply||By two double voltage regulator and separate plug-in board as isolated ground loop for reducing ground jitter|
|I- TO- V circuit||
Based on zero feedback control by mixing of tubes and passive components
|Reclock data DAC circuit||Based on D.S.P. (digital signal processor) controlled by Xtal drive by PLL as low noise circuit|
DOCET-LECTOR reserve the right to change or modify this specification without notice.
Design and handmade in Italy EU by Docet-Lector.
This units meet C.E. rules as EN55013 and EN5502
CDP-7 Black plexiglass lateral panels version
CDP-7 / PSU-3T Black plexiglass panels for power supply
Spindle motor transmit vibration to laser pick up
Lector CDM adopt special spindle solution for control and reduce the vibration comes from the motor
V. S. D. C. S.
VIBRATION SYSTEM DISC CONTROL SPINDLE : proprietary only on Lector CD player!
R e f e r e n c e d o c u m e n t s:
download & links
Download a full doc's of CDP-7 catalogue "CDP-7 in detail"
Back to the Lector-home page(english) Ritorna alla pagina iniziale in Italiano
DOCET-LECTOR - Via Verdi,35 - 27010
Albuzzano (PV) - Italy
Voice: +39 0382-48.41.65 Fax:+39 0382-48.10.21 -----