A & E Specifications

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Overview

The power ampliﬁer shall be Energy Star compliant, and shall be

housed in a 1U high, half rack-space wide (216 mm) chassis. It

shall provide two discrete channels of ampliﬁcation, with each

channel capable of driving load impedances of 2 ohms to 16 ohms.

The output circuit shall be an inherently bridged Class D topology.

Maximum total output with both channels driven shall be 240 W.

The ampliﬁer shall incorporate a digital input section with a mix-

matrix and conﬁgurable DSP features.

Power Output and Performance

Power output per channel, both channels driven, shall be as follows:

120 W into 2, 4 or 8 ohms; 60 W into 16 ohms. Peak voltage output

per channel shall be 43.8 Vpk. Maximum current output per channel

shall be 7.8 Arms. An auto-setting voltage peak limiter (VPL) shall

adjust output characteristics for optimum performance with the

connected load. The VPL setting shall be 44 V for 8 and 16 ohm

loads; 31 V for 4 ohm loads; and 22 V for 2 ohm loads. Sensitivity

shall be 8 dBu (1.95 Vrms) on the balanced inputs and 2 dBu

(0.98 Vrms) on the unbalanced RCA inputs. Input headroom for

clip shall be 12 dBu (3.09 Vrms) for the balanced inputs and 6 dBu

(1.55 Vrms) for the unbalanced inputs. The ampliﬁer shall exhibit the

following performance parameters: Frequency response shall be 5 Hz

to 22 kHz (+0/-3 dB at 1 watt into an 8 ohm load); channel separation

shall be greater than 60 dB; and signal-to-noise ratio shall be greater

than 92 dBA. THD at 1 watt (20 Hz - 20 kHz) in to 8 ohms shall be

less than 0.3%; THD at 1 kHz at 1 dB below clipping shall be no more

than 0.2%.

Digital Input Section

The ampliﬁer shall incorporate a ﬁrmware-controlled digital input

section with a 4x4 matrix mixer and comprehensive DSP capabilities.

All four inputs may be mixed and matrixed: any input, or combination

of inputs, shall be routable to either or both power outputs and/or

to either or both of the line-level outputs. The DSP features shall

include a high-pass ﬁlter, parametric equalizer, digital look-ahead

limiter and multiband compressor. A software wizard shall enable

fast initial set-up, and a software editor application shall be provided

for ofﬂine conﬁguration of presets. Presets shall be downloadable

through the rear-panel USB port. The software editor shall run on

both Windows

and Mac

operating systems. GPIO functions shall

be conﬁgurable using the editor application. Default GPI mode shall

be voltage sensing gain control per channel; default GPO mode is for

external monitoring of on/off or fault.

Connectors, Controls and Indicators

The following connectors and controls shall be provided on the

REAR PANEL of the ampliﬁer. The mains connector shall be an

IEC inlet. Four input connectors shall be provided on electronically

balanced, 3-pin detachable screw terminals. Two line-level outputs

shall be provided on electronically balanced, 3-pin detachable screw

terminals. The line-level outputs shall be post-matrix and pre-DSP

processing. Two unbalanced RCA connectors shall be provided for

local (non-matrixed) inputs only. The loudspeaker output connectors

shall be 2-pin detachable screw connectors. GPIO (General Purpose

Input/Output) functions shall be provided on a 6-pin detachable

screw terminal connector. A USB mini type B connector shall be

provided to facilitate ﬁrmware updates. A recessed utility (UTIL)

shall initiate ﬁrmware update mode. The following connectors and

controls shall be provided on the FRONT PANEL of the ampliﬁer.

A signal attenuator shall be provided for both input channels;

attenuators shall be adjustable over a range of – inﬁnity to 0 dB. A

Standby/On LED indicator shall illuminate amber when the ampliﬁer

is in standby mode and green when the ampliﬁer is on. Each output

channel shall have a tri-color status LED with indication as follows:

green when channel is operating normally, amber when limiting is

active on the channel, and red when the channel is clipping at either

input or DSP.

Power Supply, Protection, and Cooling

The power supply shall be a universal type (AC line input between 100

and 240 VAC at 50 or 60 Hz). The ampliﬁer shall turn on automatically

when power is connector to the unit; it shall go into standby mode

if no signal is present at either input for 20 minutes. The ampliﬁer

shall turn on from standby mode in less than two seconds when

an input signal is present at either channel input. Standby power

consumption shall be less than 1 W. The ampliﬁer shall be cooled by

an intelligent temperature controlled fan; the fan shall be off at lower

power levels with adequate ventilation.

Physical and Conformity

The ampliﬁer shall 216 mm (8.5”) wide, 44 mm (1.75”, 1 U) high

and 280 mm (11”) deep. It shall weigh 1.9 kg (4.2 lbs). The chassis

shall be black steel and the front panel shall be black aluminum. The

ampliﬁer shall be compliant with the following standards: Energy

Star, CE, CSA, CCC, PSE, and FCC.

The ampliﬁer shall be a Lab.gruppen LUCIA 240/2M.

LUCIA® 240/2M

Architects’ and Engineers’ Speciﬁcation

LUCIA: Localized Utility Compact Intelligent Ampliﬁcation

WWW.LABGRUPPEN.COM

Item no. AES-LUCIA2402M - 02.12.2015

Summary of content (1 pages)

PAGE 1
Architects’ and Engineers’ Specification LUCIA: Localized Utility Compact Intelligent Amplification LUCIA® 240/2M Overview The power amplifier shall be Energy Star compliant, and shall be housed in a 1U high, half rack-space wide (216 mm) chassis. It shall provide two discrete channels of amplification, with each channel capable of driving load impedances of 2 ohms to 16 ohms. The output circuit shall be an inherently bridged Class D topology. Maximum total output with both channels driven shall be 240 W.