adda191 reference – Technical Data and Measurements

2 digital inputs / 1 digital output, different formats depending on configuration:

balanced 110Ω (AES/EBU) to RJ45 Ethercon jack or XLR, galvanically isolated, input voltage according to AES/EBU.

-unbalanced 75 Ω (SPDIF) on Cinch or BNC socket, galvanically isolated, input voltage according to IEC

optical in Toslink standard (input only)

Linear input format PCM 44.1 kHz; 48 kHz; 88.2 kHz; 96 kHz; 176.4 kHz; 192 kHz / 16 bit – 24 bit

2 analog outputs, transformer-balanced, output level at 0dBfs or full scale: approx. 21dBu/ 9Vrms, impedance: <70 Ohm

Attenuation per channel switchable in 2dB steps up to -20dB

Continuously variable volume control via external controller (optional)

2 analog inputs, transformer-balanced, level approx. +21 dBu max. for 0dBfs, impedance: 37kΩ (line), >1k5Ω (mic)

Switchable transmission ratio 8:1 or 4:1 for Line

Switchable transmission ratio 1:4 or 1:8 for Mic

Switchable gain for line in 2dB steps up to max. 14dB

Switchable gain for mic in 6dB steps up to max. 72dB

10dB attenuation (pad) switchable per channel

P48 phantom power for microphones

1 Wordclock input/output 75Ω (output only if ADC equipped)

A/D converter type: 24-bit multi-bit, delta-sigma

Sampling rates, internal and via external sync: 44.1kHz; 48kHz; 88.2kHz; 96kHz; 176.4kHz; 192kHz

Frequency response: 5 Hz – 85 kHz


Power supply:

shielded mains transformer + input filter

Input voltage EU version: 230 volts, 50 Hz (stand-by <0.5W)

Input voltage US version: 115 volts, 60 Hz (stand-by <0.5W)

Dimensions: 483x47x315mm

Weight: 7 kg

We reserve the right to make changes to technical data and equipment.