QSC unD4I-L
The Attero Tech by QSC unD4I-L is a four-channel Dante/AES67 audio interface that allows for integration of analog mic/line sources into networked AV systems like the Q-SYS Ecosystem. It features four balanced mic/line inputs, each with eight software-selectable gain presets and +48 V phantom power.
The 4 x 4 logic I/O (GPIO) offers an easy interface with microphone switches and indicator LEDs. Front panel indicators show each channel’s gain and phantom power status for easy troubleshooting. The unD4I-L also has two network connections to allow for daisy-chaining of one additional unD4I-L, and can be powered by either external +24 V DC or any PoE network switch.
Features & Benefits
Four balanced and RF-filtered mic/line inputs on 3-pin depluggable connectors
Software-selectable gain presets (per channel)
PoE capable
+48 V phantom power on each channel
Four logic inputs (GPIO) accept dry contact closure, opto, or open collector inputs and can send UDP status messages to connected DSPs or control processors
Four logic outputs (GPIO) with source/sink capability for LEDs
QSC unD4I-L
System Details Mic/line input type Balanced and RF filtered Mic/line inputs 1-4 Software-selectable gain presets:
Without pad: 0 dB, +15 dB, +30 dB, +45 dB
With pad: -12 dB, +3 db, +18 dB, and +33 dB
+48 V phantom power on each channelMic/line input type Balanced and RF filtered Phantom power +48 V, software-selectable Mic/line gain Software-selectable presets: 0 dB, +15 dB, +30 dB, and +45 dB & 12 dB pad Maximum input levels +8 dBu @ 0 dB gain
-7 dBu @ +15 dB gain
-22 dBu @ +30 dB gain
-37 dBu @ +45 dB gain without 12 dB pad.
With 12 dB pad: maximum input levels are 12 dB higherPoE class 802.3af PoE compliant Dimensions (HWD) 1.5 x 8.3 x 4.7 in
(38.1 x 210.8 x 119.4 mm)Weight 1.38 lbs (.63 kg)