Krell KPS-20i
Krell KPS-20t
Krell KPS-20i/l
Krell's most remembered CD drive, available in three versions :
KPS-20i
integrated player with digital inputs to benefit from the integrated 20bit d/a unit
KPS-20t
drive only
KPS-20i/l
with a KRC-2 preamp stage added for direct connection to a power amp.
All three versions share the same Philips CDM9Pro which is housed in a 2kg brass block.
The star shaped puck (sorry - stabilizer) sticks the CD on the spindle through a quenched field magnet ; the spindle is also modded to avoid a maximum any eccentricity of the CDs by perfect interlocking with the puck (sorry - stabilizer).
Low-stored energy feet make the balance and supply the second barrier against ever nasty vibrations.
Data extraction goes through a Motorola DSP-56002 processor operating at 66MHz and running Krell-developed software similar to those used in the Reference 64 d/a unit : "incresaed complexity allows oversampled points to be more accurately calculated". D/A ICs are four 20bit BurrBrown PCM63.
Optional ST glass AT&T digital outputs allow connection loop through Krell's Time Sync system.
The owner's manual is stll downloadable from Krell.
Krell KPS-20i specifications
Title |
Value |
Jitter : |
0 picoseconds (KPS drive) |
40 picoseconds (external inputs) |
Processor : |
1x Motorola DSP-50002 24-bit / 66MHz |
Software : |
Krell-written reconstructive software |
operating at 705,6Khz |
Dithering method : |
no dithering |
D/A : |
4x PCM-63 20-bit Colinear Burr Brown |
in differential configuration |
Frequency response : |
20Hz...20Khz (+0 / -2dB) |
S/N ratio : |
> 135dB (60Hz) |
> 120dB (20Khz) |
Digital inputs : |
1x AT&T / ST optical |
1x AES/EBU balanced |
1x coaxial RCA |
1x TOS optical |
Digital outputs : |
1x RCA coaxial |
2x AT&T / ST optical (optional) |
(the 2nd AT&T can be used for Krell's Time Sync system) |
Analogue outputs : |
2x analogue XLR |
2x analogue RCA |
Dimensions : |
48cm x 12,7 cm x 36,8cm |
Weight : |
? |
page online since : december 2008
page updated : not yet
page type : LGT / KNB
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