Mack-Box
High-end 19″ rack processing matrix, 100 % analogue, up to 3 headsets.

This high-end model, in a 19-inch rack format, of great precision, features a 750 Hz low-pass filter. Signal processing is 100 % analogue: switching, Audio Vocal Delay, Dichotic, Music Crosse-Over, Interaural Delay, L.S By-pass, with the ability to connect up to 3 headsets.
Description
Bone channel volume – comfort adjustment (adjustable between 0-100%)
Right channel volume – comfort adjustment (adjustable between 0-100%)
Left channel volume – comfort adjustment (adjustable between 0-100%)
Configuration preset selector switch: Audio Vocal Delay, Dichotic, Music Crosse-Over, Interaural Delay, L.S By-pass (750Hz low-Pass filter)
Specifications
• Audio frequency response: 20Hz - 40KHz, +/- 0.25 dB
• THD + N: <0.002% at 1kHz, -1 dBFS
• Signal/noise ratio: 113dB
• Analogue audio filter, 24dB per octave, 750Hz low-pass
• Noise < -100 dB below normal operating level
Analogue inputs (impedance — balanced: 15K Ohm nominal; unbalanced: 10K Ohm nominal):
• Balanced mic: one XLR 3-pin connector (-48dBu)
• Balanced line right: two XLR 3-pin connectors (+4dBu)
• Balanced line left: two XLR 3-pin connectors (+4dBu)
• Unbalanced: stereo phono jack (-10dBV)
Insertion
Mic output XLR3MA (-48dBV) to Besson® Electronic Ear — Line output XLR3MA (-10dBV) to Besson® Electronic Ear — Mic insertion output NCJ6FI-H (-10dBV) to effect/delay box — Insertion input NCJ6FI-H (-10dBV) delay on mic
Insertion input XLR5MA (-10dBV) (Besson® Electronic Ear: Air, Balance, Bone) — Right channel line output NCJ6FI-H (-10dBV) — Insertion input NCJ6FI-H (-10dBV) right channel line delay
Outputs: 3 XLR 5-pin connectors (right / left / bone)
• Impedance from 8 Ohm up to 5k Ohm
• Output signal (nominal): +4dBu into 100 Ohm
• Output signal (maximum): 250mW into 8 Ohm, 20 Vp-p into 2K Ohm
Power supply: 9VDC (100V-240VDC) — Power: 6 W
Dimensions: (W × H × D): 483 mm (440 mm) × 44 mm × 44 mm — Weight: 1.5 kg
Steel case — CE and RoHS certified
