Harman dbx 504X Manual
  1. Manuals
  2. Brands
  3. Harman Manuals
  4. Sound Card
  5. dbx 504X
  6. Manual

Harman dbx 504X Manual

Digital output card
Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the dbx 504X and is the answer not in the manual?

Questions and answers

Summary of Contents for Harman dbx 504X

  • Page 2 Digital Output Card Important Safety Instructions The dbx 504X should only be used in a dbx 566, 576, 586, or 1086. Please follow the safety instructions contained in the manual for the product in which the dbx 504X is installed.

  • Page 3: Service Contact Information

    Digital Output Card Introduction Congratulations on your purchase of the dbx 504X Digital Output Card. The 504X interfaces with your dbx Silver Series product or dbx 1086 for a premium analog to digital conversion for use with your digital audio devices.

  • Page 4: Warranty

    504X Digital Output Card Service Contact Information (cont.) No returned products will be accepted at the factory without a Return Authorization Number. Please refer to the Warranty below, which extends to the first end-user. After expiration of the warranty, a reasonable charge will be made for parts, labor, and packing if you choose to use the factory service facility.

  • Page 5: Installation

    Installation To install the dbx 504X Digital Output Card in a dbx 1086, follow these instructions: 1. Disconnect all power and audio cables to the 1086.
  • Page 6 504X installed in a dbx 1086 To install the dbx 504X Digital Output Card in a dbx Silver Series product, follow these instructions: 1. Disconnect all power and audio cables to the Silver Series unit. 2. Remove the top cover by removing the 2 screws on each side and 2 screws on the rear, and the top-center hex screw on the front panel.
  • Page 7 11. Install plastic insulator directly above 504X card on the inside of the lid. 12. Replace the cover and screws to the Silver Series Product. Fig. 2 dbx 504X installed in a dbx Silver Series 504X Digital Output Card ®...

  • Page 8: Rear Panel

    504X Digital Output Card Installation (cont.) Fig. 3 Silver Series/10 Series jumper location. Silver Series selection is shown. Rear Panel S/PDIF AES/EBU WORD IN OUTPUT OUTPUT AES/EBU 48kHz 20 Bit S/PDIF 44.1kHz 16 Bit 504X WORD OUT AES/EBU / S/PDIF Switch: Selects either AES/EBU format or S/PDIF dig- ital output format.
  • Page 9 504X Digital Output Card Rear Panel (cont.) NOTE: Although digital information is coming out of both XLR and RCA jacks simultaneously, the correct format will only appear at the output for the format type selected. For example, if you have AES/EBU format selected, an AES/EBU formatted signal will appear at the output of both the XLR and the RCA connector.

  • Page 10: Front Panel

    Shaping” graph on page 20. Digital Output Channel Swapping When the dbx 504X is used in a dbx 576 or a 1086, where channel 1 is a microphone preamp and channel 2 is a dynamics processor, you may wish to swap the digital output channels or send one analog channel to both left and right digital outputs.

  • Page 11: Word Input

    504X’s sync input. The same is true if you wish to use several 504Xs in a tapped configuration. The dbx 504X can also be used in a daisy chain fash- ion where each piece of equipment can remain terminated so the termi- nation can remain in the default "terminated"...
  • Page 12 504X Digital Output Card Word Input (cont.) Fig. 4 Location of sync input termina- tion jumper. “Terminated” selection is shown. 504X Digital Output Card ®...
  • Page 13 504X dbx Type IV White Paper dbx Type IV™ Conversion System White Paper by Roger Johnson The dbx Type IV™ Conversion System is a proprietary analog-to-digital (A/D) conversion process that combines the best attributes of digital con- version and analog recording processes to preserve the essence of the ana- log signal when it is converted to a digital format.
  • Page 14 504X dbx Type IV White Paper of analog recording which those who abandoned analog and jumped on the digital bandwagon were either never aware of or simply took for grant- Anyone who has ever used analog tape knows that you can “hit it hard” without destroying the recording.
  • Page 15 504X dbx Type IV White Paper the forgiving nature of analog tape allows users of analog recording equip- ment the luxury of only needing to monitor the average level using VU meters, often having no peak indicators whatsoever. If only digital were more forgiving like analog, we could really exploit its wide dynamic range and more completely capture the essence of the musical performance.
  • Page 16 504X dbx Type IV White Paper Converted Signal Level dB FS A/D Clip Point Input Signal Level Figure 1 - Converted Level vs. Input Level Fig. 1 illustrates this concept showing the level of the converted signal below and above the start of the overload region. The converted signal level is plotted along the Y-axis (vertical axis) of the plot vs.
  • Page 17 504X dbx Type IV White Paper Input Signal Level TYPE IV™ Over Region 0 dB FS -4 dB A/D Converter Linear Region Noise Floor Figure 2 - Input Signal Levels Mapped to Type IV Over Region Fig. 2 illustrates the mapping function in a different way. Input levels are shown on the left of the graph, while converted levels are shown on the right.
  • Page 18 504X dbx Type IV White Paper Another advantage of the logarithmic mapping of our dbx Type IV™ Conversion System is that it preserves the high-frequency detail of the sig- nal in the overload region. Figs. 3a through 3d illustrate what happens when you overload an A/D converter without Type IV™.
  • Page 19 504X dbx Type IV White Paper Amplitude A/D Clip Level Time A/D Clip Level Figure 3b - Signal of Fig. 3a Going Beyond the A/D Clip Level Amplitude High-Frequency Information Completely Lost High-Frequency Content A/D Clip Level Low-Frequency Content Time A/D Clip Level High-Frequency Information Completely Lost Figure 3c - Disproportionate Loss of High-Frequency Information Due to Clipping...
  • Page 20 504X dbx Type IV White Paper Now you’re probably wondering, “What’s the catch? I can’t get some- thing for nothing so what did I give up?” You may be worried that your A/D noise floor got 4 dB worse because we borrowed the top 4 dB of your converter.

  • Page 21: Specifications

    20 Hz to 20 kHz, +0/-0.5 dB Interchannel Crosstalk: <100dB at 1kHz NOTE: These specifications are for the dbx 504X card only. Performance may vary once installed in a dbx product. TPDF Dither. (a) 24-Bit word output, (b) 16-Bit word output. Parameters: Input - 60dBFS, 1 kHz;...
  • Page 22 504X Digital Output Card 16-Bit TPDF dither. (a) Shape “off”, (b) with shape set to “S1”, (c) with shape set to “S2.” Parameters: Input -60dBFS, 1 kHz; FFT Length= 2048, Sample Rate= 48 Khz, Averages= 32; Graph Steps= 1024. (a) 24-Bit word, (b) 16-Bit truncated output, no dither. Parameters: Input -60dBFS, 1 kHz;...
  • Page 23 8760 South Sandy Parkway Sandy, Utah 84070 Phone: (801) 568-7660 Fax (801) 568-7662 Int’l Fax: (219) 462-4596 Questions or comments? E-mail us at: customer@dbxpro.com or visit our World Wide Web home page at: www.dbxpro.com 18-2287-B A Harman International Company...

Table of Contents