Merging Technologies AKDG8DP

Analog to Digital Converter

Description

I/O OPTION CARDS

Separate input and output cards allow you to customize your Horus or Hapi interface to exactly what you need for each application. Choose from Standard (up to 192kHz capable) or Premium (up to DXD/DSD capable) inputs and/or outputs to make sure you capture and/or playback every sound with the greatest accuracy. Whichever you choose, be secure in knowing that you are using some of the best AD and DA circuitry in the world.

Merging Technologies has started to ship the new AKDG8DP AD input card. These remotely controlled Mic/Line input cards are 3rd generation Dual Gain topology designs, taking inspiration from the outstanding Anubis Preamps, showing zero tolerance to any compromise on the audio quality.

These cards are a new benchmark in analog circuit design, and provide additionally a Line level post-Mic-pre “Direct Out” output.
Available in models that work up to 192kHz (AKDG8D, Standard) and DXD/DSD256 (AKDG8DP, Premium).

Features:

  • 8 x exceptionally transparent, Swiss-designed pre-amplifiers
  • Remote/Local switch to Line Level on a per-channel basis
  • Completely accessible remotely for all parameter changes
  • Phantom Power/Polarity Invert/Low Cut/Impedance switchable per channel
  • Removes the need for DI boxes
  • Allows build-in Mic splitting variants
  • The dynamic range of 136dB (A-weighted, type)
  • Auto-mute circuitry for “no-pop” power cycling

AKDG8D / AKD8GDP OPTION CARD

MIC PRE-AMP + ADC
Mic Pre Max Input (Mic+Pad / Mic / Boost) +24 dBu / +12 dBu / +0 dBu
Mic Pre Max Input (Pad On; Pad Off) > 3 kΩ; 10.4 kΩ
Input Impedance (Zlo; ZHi) > 3 kΩ; 10.4 kΩ
Dynamic Range (flat 20 Hz-20 kHz) > 134 dB
Dynamic Range (A-weighted, typ) 136 dB
Gain Range (software controlled) 0 dB to +66 dB
Gain Precision ±0.2 dB
Gain Step 0.5 dB
THD+N Pre + A/D (20 Hz-20 kHz) @ -2 dBFS -110 dB (0.00031 %)/-112 dB (0.00025 %)
Interchannel Crosstalk @ 1kHz, typ. <-125dB
Interchannel Crosstalk @ 20Hz – 20 kHz < -100 dB
EIN @ >40 dB Gain (150Ω Source Impedance, A-weighted, typ) -128 dBu
Common Mode Rejection Rate @ 1kHz, typ. 75 dB (up to -20 dBFS)
Common Mode Rejection Rate @ 20Hz – 20 kHz > 60 / 65 dB (up to -20 dBFS)
Phantom Power (Software Switchable Per Channel) +48 Volts
Phase Reverse Switch (Software Switchable Per Channel) Yes
Low Cut filter (Software Switchable Per Channel) -12 dB/octave, 80 Hz
LINE INPUT
Frequency response +0/-0.1dB @ fs = 44100 Hz 5.7 Hz – 20.5 kHz
Frequency response +0/-1.0dB @ fs = 44100 Hz 1.8 Hz – 21.0 kHz
Frequency response +0/-0.1dB @ fs = 96000 Hz 5.7 Hz – 43.9 kHz
Frequency response +0/-1.0dB @ fs = 96000 Hz 1.8 Hz – 45.4 kHz
Frequency response +0/-0.1dB @ fs = 192000 Hz 5.7 Hz – 42.1 kHz
Frequency response +0/-1.0dB @ fs = 192000 Hz 1.8 Hz – 64.7 kHz
Frequency response +0/-0.1dB @ fs = 384000 Hz 5.7 Hz – 40 kHz
Frequency response +0/-1.0dB @ fs = 384000 Hz 1.8 Hz – 75 kHz
Max Line Input for 0 dBFS +24 dBu
Input Impedance 10.4 kΩ
Dynamic Range (flat 20 Hz-20 kHz), ref +24 dBu > 136 dB
Dynamic Range (A-weighted, typ), ref +24 dBu 138.5 dB
THD+N Line+A/D (1 kHz) @ -2 dBFS, Typ. -106 dB (0.0005%)/-109 dB (0.00035%)
THD+N Line+A/D (20 Hz-20 kHz) @ -2 dBFS < -106 dB
Interchannel Crosstalk @ 1kHz, typ. -130 dB
Interchannel Crosstalk @ 20Hz – 20 kHz < -100 dB
Sensitivity Range for 0 dBFS (software controlled) -42 dBu to +24 dBu
Gain Precision ±0.2 dB
Gain Step 0.5 dB
Common Mode Rejection Rate @ 1kHz, typ. 75 dB (up to -20 dBFS)
Common Mode Rejection Rate @ 20Hz – 20 kHz > 65 dB (up to -20 dBFS)
Group Delay (1FS) 5/fs
Group Delay (2FS) 5/fs
Group Delay (4FS) / Premium (8FS) 6/fs / 7/fs
AKD8D/AKD8DP DIRECT OUT
Max Direct Output level typ. +24 dBu / +12 dBu / +0 dBu
Output Impedance (Differential) < 100 Ω
THD+N (1 kHz) @ +10dBu < -111dB (0.00028 %)
Input Connector Pinout DB-25 / AES59 (Tascam Ana.)
Direct Output Connector Pinout DB-25 / AES59 (Tascam Ana.)