LUCIA Operation Manual

12. Rear panel

LUCIA Operation Manual rev 1.2.0

1 Balanced audio inputs (1 & 2) – Connect balanced inputs using 3-pole Euroblock connectors.

Correct polarity (+, -) and ground terminations are shown on the rear panel.

2 Unbalanced audio inputs (1 & 2) – Connect unbalanced inputs (e.g. local video screen output, CD player)

to the RCA (phono) inputs. Note: Balanced and unbalanced inputs are in parallel; only one pair of inputs should be

connected at one time.

3 Speaker outputs – Connect to loudspeakers in a 70 V or 100 V distributed system. Note that if the trans-

former has marking for 100 V, then the same total power will be delivered as with 70 V. However, since limiting

engages at -3 dB relative to 100 V, the power delivered per loudspeaker will be half of the marking on the

loudspeaker transformer. Consequently, taps should be set to twice the desired power.

4 GPIO/Remote connector – Connect external control and status monitoring devices using the six-pole

Euroblock connector. See “GPIO Configuration” in Set-up and Operation section following.

5 USB port – Connects to external computer for downloading DSP presets. Connection requires cable with a

Mini B type connector (included).

6 UTIL (Utility) switch – Recessed switch places unit in update mode for firmware updates. The switch must be

pushed in and held down while the USB connector is being inserted to activate update mode.

7 AC line input – Connect the included IEC power cable.

8 High pass frequency – Select 80 Hz or 50 Hz for high pass cutoff frequency. This filter is in series with what

gets configured in the Application Browser software.

9 HPF switch – Select ON or bypass for the high pass filter

12.2. Mono high-impedance models: (LUCIA 60/1-70, 120/1-70, 240/1-70)