MARA-SUB

description

MARA-SUB is a self-powered cardioid subwoofer system that incorporates a front 21” speaker and a rear 18” speaker, both with a 4” voice coil, in a bass-reflex configuration. The rear 18” speaker creates the cardioid dispersion pattern needed to compensate for unwanted energy at the rear.

The Class D amplifier of the MARA-SUB has 4 bridged channels, providing power to both the front 21” speaker and the rear cardioid 18” speaker. The switched-mode power supply features power factor correction, reducing power consumption and improving reliability and consistency under all operating conditions. The built-in DSP optimizes the signal parameters for the speakers, allowing compensation of 14 dB of rear energy in the range of 32 Hz – 125 Hz.

The enclosure design adheres to DAS’s strict standards regarding the use of birch plywood and durable ISO-flexTM exterior protection. The MARA-SUB features the necessary rigging system to fly together with the MARA systems using a single support. The metal grilles include acoustically transparent and moisture-repellent fabric. Recessed handles are located on each side of the enclosure.

technical data

Performance
Frequency Range (-10 dB)	32 Hz – 125 Hz
Maximum Linear SPL¹	137 dB
Maximum SPL²	141 dB
1. Measured Maximum Linear SPL at 1m according to AES75 standard using 18dB crest factor M-Noise. 2. Measured Maximum SPL at 1m using burst noise.
Electronics and Connectors
Nominal Amplifier Power (continuous)	2400 W
Nominal Amplifier Power (peak)	4800 W
Nominal Amplifier Power LF (continuous)	2 x 1200 W
Nominal Amplifier Power LF (peak)	2 x 2400 W
Input Type	Balanced Analog
Input Impeadance	20 kohms
Input Sensitivity	6.2 V (+18 dBu)
Audio Signal Input Connector	1 x Female XLR
Audio Signal Loop Thru Connector	1 x Male XLR
Audio/Data Input Connector	etherCON
Control	ALMA
Audio + Data Loop Thru Connector	etherCON
AC Output Connector	powerCON TRUE1
Current Draw 230 V / 115 V	6.5 /13A
Sampling Rate	96kHz
Enclosure
Enclosure Construction	Birch Plywood
Enclosure Geometry	Rectangular
Rigging	Captive Rigging System
Finish	ISO-flex Paint
Color	Black
IP Rating	IP43
Dimensions ( H x W x D )	605 x 1.070 x 790 mm 23,8 x 42,0 x 31,0 in
Net Weight	107,0 kg ( 235,5 lb )
Components
LF Driver	21LFN
LF Cardioid Driver	18UXN

downloads

Title	Format	Size
Data Sheet
HT_MARASUB_00.pdf	PDF	552 Kb
User Manual
UM_ARA_EN_v5.pdf.pdf	PDF	24.21 Mb
UM_ARA_ES_v3.pdf	PDF	20.7 Mb
Rigging Manual
RM_LARA_LARASUB_EN.pdf	PDF	59.54 Mb
Configurations Guide
CG_MARAMARA-SUB_208V.pdf	PDF	9.15 Mb
CG_MARAMARA-SUB_230V.pdf	PDF	12.17 Mb
CG_24xLARA16xMARA_COMB_208V.pdf	PDF	4.6 Mb
CG_24xLARA16xMARA_COMB_230V.pdf	PDF	4.74 Mb
CG_MARALARA-SUB_COMB_208V.pdf	PDF	8.31 Mb
CG_MARALARA-SUB_COMB_230V.pdf	PDF	11.31 Mb
Software
ALMA_Setup_2.1.0.exe	EXE	130.68 Mb
ALMA-2.1.0.dmg	DMG	167.02 Mb
SW_EASE_Focus_v3.1.260.zip	ZIP	49.76 Mb
Line Drawing
CAD_2D_MARA-SUB.dwg	DWG	1.37 Mb