Merging Technologies ADA8S

Overview:

• 8 transparent preamplifiers
• 8 line/mic inputs and outputs
• Dynamic range of 125 dB (ADA8S), 126 dB (ADA8P)
• Configuration of up to 16 channels for analog inputs and outputs (Hapi)
• 192kHz (ADA8S) and DXD/DSD256 (ADA8P)
• Remote/local switching to line level for each channel
• Full remote access for all parameter changes
• Auto-mute circuit for "no-pop" power cycling

The ADA8S plug-in card offers an extension of eight preamps for the Horus or Hapi. The Preamps work remarkably transparent and are inspired by the outstanding "Anubis" preamps.

Mic Preamp + ADC section:

• Maximum mic preamp input (mic+pad / mic / mic gain): +24 dBu / +12 dBu / +0 dBu
• Input impedance (differential, switchable per channel via software): 3 kΩ / 10.4 kΩ
• Frequency response +0/-0.3dB @ fs = 48 kHz: 9 Hz - 22 kHz
• Frequency response +0/-0.3dB @ fs = 96 kHz: 9 Hz - 46 kHz
• Frequency response +0/-0.3dB @ fs = 192 kHz: 11 Hz - 94 kHz
• Dynamic range (A-weighted, typ.), ref +12 dBu: 137 dB
• Dynamic range microphone gain (A-weighted, typ.), ref 0 dBu: 128 dB
• Gain range (software-controlled): 0 dB to +66 dB
• THD+N Pre + A/D (20 Hz - 20 kHz) @ -2 dBFS: < -111 dB (0.00028 %)
• Crosstalk between the channels at 1 kHz: < -130 dB
• ON @ > 40 dB gain (150Ω source impedance, A-weighted): < -127 dBu
• Common mode rejection (20 Hz - 20 kHz): > 75 dB
• Phantom power (software switchable per channel): +48V
• Polarity reversal (software switchable per channel): Yes
• Low-pass filter (software switchable per channel): -12 dB/octave, 80 Hz

Line input:

• Max. Line input for 0 dBFS: +24 dBu
• Input impedance (differential): 10.4 kΩ
• Dynamic range (A-weighted, typ), ref +24 dBu: 139 dB
• Distortion+N Line+A/D (20 Hz - 20 kHz) @ -2 dBFS: < -111 dB (0.00028 %)
• Crosstalk between the channels @ 1kHz, typ.: < -135 dB
• Sensitivity range for 0 dBFS (software-controlled): -42 dBu to +24 dBu
• Gain stage: 0.5 dB
• Common mode rejection (20 Hz - 20 kHz): > 70 dB
• Pin assignment: DB-25 / AES59 (Tascam Ana.)

Line output:

• Max. Output level switchable via software for 0 dBFS: +24 dBu / +18 dBu +0/-0.5 dB
• Frequency response +0/-0.3dB @ fs = 48 kHz: 0 Hz - 22 kHz
• Frequency response +0/-3dB @ fs = 96 kHz: 0 Hz - 46 kHz
• Frequency response +0/-3dB @ fs = 192 kHz: 0 Hz - 92 kHz
• Output impedance (differential): < 80 Ω
• Dynamic range (A-weighted, typ.): 125 dB / 126 dB
• THD+N (1 kHz) @ 0dBFS: < -115 dB (0.00017 %)
• Crosstalk between the channels @ 1kHz: < -139 dB
• Pin assignment: DB-25 / AES59 (Tascam Ana.)