HEED ABACUS Owner's Manual

Digital-to-analogue converter

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owner`s manual

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Summary of Contents for HEED ABACUS

  • Page 1 owner`s manual...
  • Page 2 The Abacus d/a converter do not have any user serviceable parts. It is essential that repairs and updates are only carried out by our authorised trade partners - distributors and dealers -, or at the factory by Heed Audio itself. Many components are custom made, tested or matched and appropriate replacements are often unobtainable from other sources.
  • Page 3 controls and connections display 6 input selector pushbuttons coax 1 coax 2 USB aux analog fuse (RCA) (BNC) card output holder mains optical 1 optical 2 mains input switch important note always turn off the device and wait 2 minutes before changing any cables in your system...
  • Page 4 Never connect line level analog signal into the coaxial connectors of the Abacus. line-level output connection Your Abacus has a pair of RCA line-level analog outputs. This output has no volume control, therefore do not connect a power amplifier directly to these outputs.
  • Page 5 If the Abacus is locked onto a digital audio signal, the display can show you its actual sampling frequency. There are three display modes, which can be rotated through with the ( ) button of the remote control.
  • Page 6 Abacus, wait a minute and switch it on again. If this solves the problem, you probably connected or disconnected a cable in your system with the Abacus turned on, or there is a chance that your system has some grounding issues. Please check it.
  • Page 7 specifications inputs: 1 RCA coaxial S/PDIF input 1 BNC coaxial S/PDIF input 2 Toslink optical input 1 asynchronous USB input 1 auxiliary input for expansion card outputs: 1 pair RCA line level analog output output level: 2.1 Vrms frequency response: 3 Hz - (depens on sample rate) DSD filter frequency: 50 kHz standard Scarlet Book...
  • Page 8 Warranties granted in these countries are entirely at the discretion of distributor. factory warranty If within three years of the purchase date your Heed Abacus proves to be defective for any reason other than accident, misuse, neglect, unauthorised modification or fair wear and tear, Heed Audio Ltd.

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