ULN-2 Users Guide
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ULN-2 Rear Panel
Figure 7.4: ULN-2 Rear Panel
The ULN-2 rear panel features:
• 2 channels balanced MIC/LINE/INSTRUMENT inputs on Neutrik™ Combo connectors. Each input
has:
• 24-bit 96kHz A/D converters (110dB SNR)
• high gain, low noise Mic amps with up to 72 dB of gain (fed by the XLR connector)
• high gain, low noise DI amps with up to 63 dB of gain (fed by the TRS connector)
• switchable input impedance characteristics (Mic input 3.3k Ohms, DI input 200k Ohms)
• switchable 48V Phantom power (on XLR connector)
• balanced analog inserts (S1, S2, R1, R2 jacks) which are post preamp but pre A/D. You can use
the inserts to patch in analog processing between the preamp and the A/D converter. The send
jack can also be used to send a mult of the input signal to another device while still using the A/
D section of the ULN-2. This allows the ULN-2 to be used as an active mic splitter.
• 2 channels balanced TRS main outputs. Each output has:
• 24-bit 96kHz D/A converters (120dB SNR) (functional at 4x SR)
• swit4/-10 level
• 2 channels balanced Monitor output with front panel level control
• Connect these outputs directly to power amps or self powered monitors
• 4-pin XLR power port for use with broadcast batteries
• Compatible with any 4-pin XLR power system with the following characteristics: 9v - 30v DC, Pin
4 Hot, 15 Watts
• TOSLINK connectors for ADAT Optical or Optical S/PDIF I/O
• 8 channels of ADAT® Lightpipe input (auto-senses and switches between ADAT® and Optical
S/PDIF)
• 8 channels of ADAT® lightpipe output (user-selectable between ADAT® and Optical S/PDIF)
• Wordclock input/output on BNC connectors
• Stereo S/PDIF input/output on RCA connectors (with base configuration S/PDIF•AES Edge Card)
• Stereo AES/EBU input/output on XLR connectors (with base configuration S/PDIF•AES Edge Card)
• 2 MHLink Gigabit Ethernet ports
• 1 USB-C port
• 1 2.1mm DC power jack (9v - 30v, center positive, 15 Watts)
