Merging Technologies AKD8DP Option Card
The Merging Technologies AKD8DP Option Card is a remote controlled Mic/Line Input card with DXD/DSD256 setting a new benchmark in analog circuitry design, and provide additionally a Line level post Mic-pre “Direct Out” output.
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/Phase/Low Cut switchable per channel
- Removes the need for DI boxes
- Allows build-in Mic splitting variants
- Better than 120 dB dynamic range
Mic Pre-Amp + ADC |
|
Mic Pre Max Input (Pad On / Pad Off) | +24 dBu / +13 dBu |
Input Impedance (Differential, Software Switchable Per Channel) | 1.9 kΩ / 10 kΩ |
Input Impedance with +48V ON (Diff., Soft. Switchable Per Channel) | 1.9 kΩ / 10 kΩ |
Dynamic Range (A-weighted, typ.) , ref +10 dBu | 123.5 dB |
Gain Range (software controlled) | 0 dB to +66 dB |
Gain Step/Precision | 0.5 dB / ±0.2 dB |
THD+N Pre + A/D (20 Hz-20 kHz) @ -2 dBFS (Standard/Premium) | < -110dB (0.00031%)/-111dB (0.00028%) |
Interchannel Crosstalk @ 1kHz, typ. | < -125 dB |
EIN @ >40 dB Gain (150Ω Source Impedance, A-weighted, typ.) | < -128 dBu |
Common Mode Rejection Rate (20 Hz – 20 kHz) | > 60 dB (up to 0 dBFS) |
Phantom Power (Software Switchable Per Channel) | +48V |
Phase Reverse (Software Switchable Per Channel) | YES |
Low Cut filter (Software Switchable Per Channel) | -12 dB/octave, 80 Hz |
Line Input |
|
Max Line Input for 0 dBFS | +24 dBu |
Input Impedance (Differential) | 10 kΩ |
Dynamic Range (A-weighted, typ), ref +24 dBu | 124 dB |
THD+N Line+A/D (20 Hz – 20 kHz) @ -10 dBFS | < -110dB (0.00031%)/-111dB (0.00028%) |
Interchannel Crosstalk @ 1kHz @ fullscale | < -130 dB |
Sensitivity Range for 0 dBFS (software controlled) | -42 dBu to +24 dBu |
Gain Step/Precision | 0.5 dB / ±0.2 dB |
Common Mode Rejection Rate (20 Hz – 20 kHz) | > 60 dB / > 65dB (both up to 0 dBFS) |
Connector Pinout | DB-25 / AES59 (Tascam Ana.) |

AKD8D/AKD8DP Mic-Pre Analog Section |
|
Frequency response +0/-0.5 dB, Line | 2 Hz – > 200 kHz |
Frequency response +0/-2.0 dB, Line | 1 Hz – > 200 kHz |
Frequency response +0/-0.5 dB, Mic, at G=40dB | 2 Hz – 65 kHz |
Frequency response +0/-2.0 dB, Mic, at G=40dB | 1 Hz – 160 kHz |
THD+N (1 kHz), Line/Mic at G=0dB | < -115 dB (0.00018 %) |
THD+N (20 Hz-20 kHz) , Line/Mic at G=0dB | < -112 dB (0.00025 %) |
Interchannel Crosstalk @ 1kHz, typ. | -140dB |
5° low-end in-channel Ø deviation pt: Line | 9 Hz |
5° low-end in-channel Ø deviation pt: Mic | 9 Hz |
Interchannel phase 10 Hz – 100 kHz | < ±0.1° |

Merging Technologies AKD8DP Option Card Analogue Direct Output Section |
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Frequency response +0/-0.5dB @ Gain 40 dB | 2 Hz – 65kHz |
Max Direct Output Level, typ | +24 dBu / +13 dBu |
Direct Output Impedance (Differential) | > 100 Ω |
Dynamic Range (flat 20 Hz-20 kHz, typ.) | 140 dB |
THD+N (1 kHz) @ +10dBu | < -120dB (0.0001 %) |
Direct Output Connector Pinout | DB-25 / AES59 (Tascam Ana.) |
For more info visit: http://www.merging.com