JCF Audio DA8-V User Manual

Digital to analog

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DA 8- V
DA8-V
USER MANUAL
JCF AUDIO, LLC.
11247 CAMARILLO ST.
NORTH HOLLYWOOD, CA 91602
WWW.JCFAUDIO.COM
contact@jcfaudio.com
11 2 4 7 C a m a r i l l o S t . N . H o l l y w o o d , C A 9 1 6 0 2
w w w. j c f a u d i o . c o m

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Summary of Contents for JCF Audio DA8-V

  • Page 1 DA 8- V DA8-V USER MANUAL JCF AUDIO, LLC. 11247 CAMARILLO ST. NORTH HOLLYWOOD, CA 91602 WWW.JCFAUDIO.COM contact@jcfaudio.com 11 2 4 7 C a m a r i l l o S t . N . H o l l y w o o d , C A 9 1 6 0 2 w w w.
  • Page 2: Safety Information

    Doing so can endanger the user and others as well as void the warranty. Fuses should be replaced with the exact values and sizes stated in the manual. JCF Audio, LLC accepts no responsibility for legal actions or for direct, incidental, or consequential damages that may result from improper installation, configuration, or use of the DA8-V.
  • Page 3: Front Panel Controls

    JCF Audio Overview The DA8-V is an 8 channel Digital to Analog converter that utilizes the AKM AK4359 in combi- nation with a tube line stage that was inspired by the Ampex 351 reproduce circuitry. The unit accepts the industry standard AES/EBU protocol on a DB25 connector with an addi- tional courtesy turn-around.
  • Page 4: Rear Panel

    JCF Audio Rear Panel Analog Power - This 4 pin XLR jack is for connection to the supplied analog power supply. The pinout is as follows: Pin 1 - 6 VAC 4.8A Pin 2 - Pin 3 - B- ~300 VDC 0.125A idle...
  • Page 5 (as in the case of the DA8-V). The most common situation is that one will go to plug in the converter for the first time and find that their DAW already has some- thing connected to it’s AES/EBU DB25 port.
  • Page 6: Analog Outputs

    There are two analog output connectors present on the rear panel. As the unit is factory configured, each output is galvanically separate and fully floating. Analog Out- put #1 is closest to the fan. (See DA8-V Rear View picture) Analog Output #1 has circuit common connections on each channel. Analog Output #2 does not.
  • Page 7: Power Supplies

    Both Analog and Digital power supplies should be kept away from the main unit and their chassises should not touch each other, the DA8-V nor any other object . Both units should rest on their rubber feet at all times. The analog supply’s fan ports should be completely unobstructed and away from objects that generate and/or are susceptible to heat.
  • Page 8: Specifications

    JCF Audio Cabling: The DA8-V ships with 3 included cables: A male to male 4-pin cable for transferring power from the included analog power supply to the main unit. This cable is wired “straight through”. Pin 1 to Pin 1, etc.
  • Page 9: Power Consumption

    JCF Audio De-emphasis is not supported anywhere in the DA8-V. Power Consumption: 100W Idle Tube Compliment: 8 - 12AX7 8 - 12AU7 1 - 5R4 (Located in Analog Power Supply) Life Expectancy is ~18 months on this tube. THD+N (48kHz, 400 to 18k BW, 1kHz tone) -20dBFS to 0 out: 0.03%...
  • Page 10: Frequency Response

    JCF Audio Frequency Response No output load) @ 44.1kHz: 20Hz to 20kHz +/- 1.5dB @ 88.2kHz: 20Hz to 40kHz +/- 1.5dB @ 176.4kHz: 20Hz to 80kHz +/- 1.5dB DAC residual noise ( No BW limiting, No attenuation 192k: - < -51dBu 96k: - <...
  • Page 11: Feature List

    JCF Audio Fuses: 2x 500ma 5x20mm on digital section, inside unit 1x 3A, 3AG (Analog Supply) 1x 1A, 3AG (Digital Supply) Notes: The 12AU7 output tubes are recommended to be replaced every 24 months. The 5R4 rectifier tube does quite a bit of power handling and as a result it may need to be replaced every 18 months.
  • Page 12: Fcc Compliance

    JCF Audio 1-Year Limited Warranty JCF Audio LLC. “JCF Audio” warrants this product to be free of defects in material and assem- bly for a period of one year for parts and labor from the date of original purchase. This war- ranty is enforceable only by the original retail purchaser and cannot be transferred or assigned without express permission of JCF Audio.
  • Page 13 Without limiting the foregoing, repairs under this warranty shall be made only by a duly authorized JCF Audio service representative or by JCF Audio itself. For warranty information in other countries, please refer to the dealer. J C F A u d i o...

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