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  Yes, yes - I know that R.L. Stevenson wrote this name as "Dr. JEKYLE", but....

This is Dr. JKILL, that means "Jitter Killer".

100% jitter elimination from your SPDIF/TOSLINK audio source.
Connect JKill to Your DAC with I2S Input and system clock, and the jitter will depend only of how your clock is good!
So, with JKill - we will cook the signal for you, all other sound quality aspects are in Your hands: use good DAC, use good clock, use good amplifier, use good loudspeakers, ohh - and don't forget to prepare you Listening Room!
Including Wife Approval Factor (WAF), of course :)
What is the Jitter and why it should be elliminated? Read the article.
 Dr. JKILL Full

JKILL Frontpanel
JKILL LED Frontpanel

FIFO based device is intended to use with CD/DVD/Media-players, equipped with coaxial SPDIF or optical TOSLINK outputs, providing bitperfect signal, without any influence, any rework or upgrade of these devices.
You need just a high quality double frequency clock generator (512*Fs or 1024*Fs).

Main features:
  • 2 SPDIF inputs
  • 2 TOSLINK inputs
  • Utilise DIX9211 - one of the "Best In Class" SPDIF receiver
  • 1 I2S input ready (will be implemented soon)
  • Optional 1 SPDIF and 1 TOSLNK outputs
  • 512*Fs and 1024*Fs External Clocks (optionally - 256 and 384 Fs)
  • 44.1/48/88.2/96/176.4/192 Sample Rate operation
  • DSD-64 Output from SPDIF DoP signal (optional)
  • ADC Channel for analogue input (will be implemented soon)
  • Power Amplifier and/or DAC On/OFF Control
  • Volume Control (step attenuator) of 3 types
  • DAC Digital Filter control
  • 1.8" TFT Display or 5 LEDs  indication
  • Encoder or 3 push buttons control
  • IR Remote control - use YOUR Remote Control Unit (should operate in one of the 5, widely used standards)
  • Firmware upgrade form USB Disc-On-Key
  • 7.5V, 250mA (less then 2W) power consumption
  You can use Front panel with:
  • TFT-display and Encoder
  • TFT-display and Push Buttons
  • LEDS and Push Button

The production of the full version was cancelled because of a small demand (due to high price and complexity - most of people wants it without TFT display, remote control, volume control and other features)), so the Lite version was developed, which have a great success.

 Dr JKILL Lite

 Simplified Dr. JKILL version with SPDIF/TOSLINK Input

  • Can be used as one PCB or splitted to the separate Input PCB and JKill Lite PCB
  • 1 Coax SPDIF Input (transformer coupled)
  • 1 Optical (Toslink) Input
  • 1 Optional Input
  • 4 LED, 4 Pushbutton Input Control
  • If splitted, JKill Lite PCB have 1 I2S Input,
  • Sync (MCLK) can be from the DAC or from the optional clock generator (JKill Lite PCB has optional socket)
  • 512*Fs and 1024*Fs External Clocks (optionally - 256 and 384 Fs)
  • JKill Lite status 3 LED indication
  • 4 inputs control signals/inputs
  • 44.1/48/88.2/96/176.4/192 Sample Rate operation
  • Short delay time mode for movies
  • Firmware upgrade form USB Disc-On-KeySmall
  • 100x50 mm PCB, or two 50x50mm PCBS, if splitted.
 Dr. JKill Lite 3

Special version to operate with conjunction with xVM USB Interface.

 See descriptions, technical documents, firmware upgrades at download page, prices - at the shop page.
Please, read the ERRATA document!