New AD8D and AD8DP Mic/Line Input Cards For Horus

Award winning converter gets key additional feature after user requests

Puidoux, November 2013: The first upgrade to the Horus Networked Audio Converter sees the addition of a direct analogue output connector to the AD8 series input cards. This allows other recording or sound reinforcement consoles to be sent a feed post mic-preamplifier. Ideal for making recordings at different sampling rates.

The quality of the mic pre-amplifiers and the analogue to digital conversion has never been in doubt since the introduction of Horus in 2012, but some of the earlier adopters wanted even more functionality from this remarkable Networked Audio Converter. In many situations, multiple recordings or feeds to front of house sound systems were required and often with incompatible sampling rates. The solution was to provide an additional analogue output after the mic pre and the AD8D and AD8DP offer just that. The standard AD8D replaces the AD8 and allows PCM recording up to 192 kHz. The premium AD8DP replaces the AD8P card that allows extreme recording resolutions of DXD at 352.8 kHz and all variants of DSD up to 256 (11.2 MHz). Both options are shipping now.

The addition of a second 25 pin D-Sub connector was simple enough to create but the preservation of the exceptional fidelity was paramount. The specifications are as peerless as you would expect:

  • Frequency response +0/-0.3dB @ Gain 40dB
  • THD+N (1 kHz) Mic at G=0dB
  • Dynamic Range (flat 20 Hz – 20 kHz)
  • Dynamic Range (A-weighted, typ.)
  • Max Direct Output level, typ.
  • Direct Output Impedance
  • 10 Hz – 50 kHz
  • < 0.00035%
  • > 122dB
  • 124.5dB
  • +18.5dBu
  • < 1000

Each card also features:

  • 8 x exceptionally transparent, Merging designed pre-amplifiers
  • Remote/Local switch to Line Level on a per channel basis
  • Completely remote accessible for all parameter changes
  • Phantom Power/Phase/Low Cut Filter switchable per channel

It is this attention to detail and quite extraordinary digital connectivity that has seen Horus sales accelerate rapidly since its launch. The mere fact that one Horus unit can simplify an installation and replace so many other devices is reason enough for many users, but the real added value comes with the extraordinary sonic performance and ability to interface with virtually any digital or analogue equipment at a remarkably affordable price.

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