dodecahedron loudspeaker type d12a - self powered · the d12a has been designed in order to...

Dodecahedron Loudspeaker Type D12A - Self Powered

Copyright © - Lange Loudspeakers Ltd. CH-6900 Lugano, Switzerland - www.langeloudspeakers.com - [email protected] - Revision: Thursday, December 1, 2016, 10:24 PM Pag. 1 of 31

APPLICATIONS

Applications requiring a spherical sound field

Architectural and Building Acoustics

Airborne Sound Insulation

Reverberation Time

Impact Sound Level

FEATURES

Active unit, with built in amplifier and DSP

433,92 MHz RF Remote Controls the D12A

and an optional subwoofer

Very light unit, not exceeding 7,00 Kg

650 Watts RMS power

Sound Power Level 122dB re 1pW

Complies with ISO140/3 - ISO717 - ISO 3382

Satisfies EN60068-1-2

Easily transportable due to low weight/mass

Ultra-compact, 335mm diameter, upper-vertex configuration

DESCRIPTION Introduced in March 2009 as the first active

dodecahedron available on the market it has been

upgraded in different aspects becoming one of the most

advanced and flexible systems in the category.

The D12A includes in an extremely compact enclosure

12 extended frequency response speakers, an

universally compatible PSU, a 650W amplifier module, a

2 IN / 4 OUT DSP and a 433,92 HCS Rx module for

remote control of both the Dodecahedron and an

optional subwoofer.

Exhibiting an unusually flat frequency response the D12A

outperforms most passive dodecahedrons. Paired with

different accessories it is in fact a flexible and versatile

tool for the sound engineer that must perform

measurements with numerous devices such as separate

amplifiers, DSP controllers, flight cases and much more.

The D12A carries anything inside its cabinet. Combined

with a trolley a sound engineer carries almost anything

he needs in terms of acoustic energy source. Usable also

with an IPod® hundreds of different signals at various

levels can be reproduced by activating remotely the

D12A. The remote control can also activate a separate

subwoofer for extended low frequency performance.

The D12A has been designed in order to maintain the

speakers as close possible, therefore polar diagrams are

particularly smooth even at very high frequencies. The

D12A satisfies and exceeds the ISO3382 - ISO140/3

norms and satisfies harsh environmental conditions

(EN60068-1-2).

The D12A provides an AC Neutrik® Powercon® Input &

Output connector as well as balanced Neutrik® XLR

Input & Output sockets.



SPECIFICATIONS

Frequency response (+/- 4dB) 125Hz to 8KHz

Power Rating, IEC 268.5 650W RMS

Maximum sound pressure

Horizontal coverage angle (-6dB)

Vertical coverage (-6dB)

122dB re 1pW @ 1 meter

360°

360°

Power compression Less than 3 dB

Impedance

Components

12 Ohms

12 x 5,5” ND cone driver

DC System resistance (Re) 11.8 Ohms

System inductance (Le)

Connectors

Box construction

Configuration

0.24 mH

2 x Powercon™ for AC connection and 2 x Neutrik XLR

balanced connector for signal flow

16 mm MDF, CNC machined, glued & pressed

Dodecahedron with 124 mm dodecahedral sides

Dimension (W/H/D) 335 mm maximum diameter (stator not included)

Weight 6,9 Kg

Accessories Replacement speakers (art. WP13-2133)

Telescopic tripod

Transport Bag/Trolley

Tripod adapter

Voltage

Rf Control (signal enable / Mute)

RF control range

RF control frequency

36mm female pole adapter

110V to 220V

2 channel operation, D12 & SUB separately or

simultaneously

Approximately 250 meters (good transmission into

buildings and through walls)

433,92 MHz

D12A – 200.100.021 – Frequency Response – DSP Corrected

All data hereafter has been acquired with MLSSA 10W5 test equipment,

operating under DOS. TIM files have then been imported in a Windows®

based software for proper communication an post processing of Windows®

based computers.



D12A polar response - measurements have been made at one metre distance with MLSSA test equipment, MTG ¼” microphone (MV302-MK301), MTG MN900 preamplifier



Front Three Dimensional plot of D12A polar response - measurements have been made at one metre distance with MLSSA test equipment, MTG ¼” microphone (MV302-MK301), MTG

MN900



Side Three Dimensional plot of D12A polar response - measurements have been made at one metre distance with MLSSA test equipment, MTG ¼” microphone (MV302-MK301), MTG

MN900



Directivity Sonogram of D12A polar response, 1° resolution - measurements have been made at one metre distance with MLSSA test equipment, MTG ¼” microphone (MV302-

MK301), MTG MN900 preamplifier



D12 and D12A Directivity Upper and lower

curves according to ISO 140-3 & ISO 140-4

Tolerances (ISO Tolerances in gray)

D12 and D12A Directivity according to ISO

140 – Upper and lower curves according to

ISO 3382 Tolerances, maximum deviation

measured on a 30° arc (ISO Tolerances in

gray)



Amplifier Performance - General

Power Output per Channel 2 x 350W on a 4Ω load, EIAJ test, 1 kHz, 1% THD

Power requirements AC 100 - 250 V (±10%)

Mains Frequency Range DC - 80 Hz

Start-up Voltage 90 V AC (130 V DC)

Efficiency >95% (starting from 1/8 of the maximum output power)

Shutdown Voltage 290 V

Minimum Operational Voltage 70 V

Max Input Voltage 265 V

Idle Consumption 0.6 A

Max operating ambient temperature 40°C

Amplifier Performance - Audio

Input impedance 10 kΩ Balanced to ground

Input sensitivity @ 8 Ω 0.94V / 1.70 dBu

Gain 32dB (voltage gain: x40)

Frequency response 3 Hz - 45 kHz (-3dB) for 1W @ 8 Ω

S/N ratio > 113 dB(A) (20 Hz - 20K Hz)

Crosstalk separation >70 dB @ 1 kHz

Slew rate* 30 V/µs @ 8 Ω. input filter bypassed

Damping factor* > 1000 @ 100 Hz

THD+N < 0,005 % from 0,1W to full power

SMPTE IMD* < 0,005% from 0,1W to full power

DIM100 IMD* < 0,001% from 0,1W to full power

Output type Unbalanced to ground

Max Output Voltage (peak) 53 V

RF Command Specifications

Remote Control 433,92 MHz, 4 buttons HCS Encoder

Receiver 4 channel receiver

Range App. 250 Metres (very good transmission into buildings and through walls)

Functions Enables / mutes signal flow on the D12A

Enables / mutes signal flow from the D12A to an optional active subwoofer

Enables / mutes signal flow of both D12A and an active subwoofer



D12A Accessories

D12 Bag/Trolley For transport of D12/D12A Dodecahedron

Light, ideally suited for the D12

applications

Different supplemental bags

Professional look

Robust base

Foam-coated inside (2,5 cm)

40cmx45cmx38cm (external)

Less than 3 Kg

Powercon® AC cable to D12A Powercon® AC cable link D12A/SUB XLR Signal Cable to D12A XLR Signal Cable from D12A to SUB

Neutrik Powecon® connector toCEE 7/4” (10 mt.)

Neutrik Powercon Link from D12A to SUB (1,5 mt.)

Neutrik XLR Male to Female cable to D12A (10 Mt)

Neutrik XLR Male to Female, from D12A to SUB

DST -200 AL/SW

Can hold Up to 30Kg

Compatible with Dodecahedron Adapter

Adjustable from 107cm to 157 cm

Transport dimensions: 94cm x 14cm diameter

Weight: 2,8 Kg.

Other tripods available on demand, with different height ranges.



CE mark indicates compliance with: EMC Directive, Low Voltage directive and Machinery Directive

Safety EN/IEC 61010-1 and ANSI/UL 61010-1 Safety requirements for electrical equipment for measurement, control and laboratory use

EMC Emission EN/EC 61000-6-4 Generic Emission Standard for residential, commercial and light-industrial environments

CISPR22 Radio disturbance characteristics of information technology equipment. Class A limits

FCC Rules, part 15: complies with the limits for a Class A digital device

EMC Immunity EN/IEC 61000-6-1 Generic Standards – Immunity for residual, commercial and light industrial environments

EN/IEC 61000-6-2 Generic Standards – Immunity for industrial environments

EN/IEC 61326 – Electrical Equipment for Measurement, control and laboratory use – EMC Requirements

Environmental – Temperature & Humidity IEC 60068-1-2 & IEC 60068-2-2 Environmental Testing, cold and dry heat

IEC 60068-2-78 Damp heat 90% RH (Non Condensing at 40°C (104°F))

Storage Temperature: -25° to +70°C (-13° to 158°F)

Operating temperature 0° to +40°C (32°to 104°F)

Mechanical IEC 60068-2-6 Vibrations: 0,3 mm, 20m/s², 10 – 500 Hz (non-operating)

IEC 60068-2-27 Shock: 500 m/s², 6 directions (non-operating)

IEC60068-2-29: Bump: 1000 bumps at 250 m/s² (non-operating)

This device must be powered exclusively by earth connected mains sockets in electrical networks compliant to the IEC 364 or similar rules.

dodecahedron loudspeaker type d12a - self powered · the d12a has been designed in order to...

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