(ML) Catalogue 2016-2017
(ML) Catalogue Classic

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MOL1818 SubOne


Band-pass horn loaded subwoofer.
Designed for live music performed in medium to large venues where the main requirements are extended bass response and maximum sound pressure. The company's pioneering approach to acoustical design combines the theory of wave-guides with that of band-pass systems and the mathematics of organ pipes with that of low-turbulence exponential reflex ports. All of this is carved in the wood, without compromises. This relationship between art and science is completed thanks to an innovative 18" woofer, which embodies a new technology that makes it possible to drive a new-geometry voice coil in a linear manner over a ±30 mm excursion. Moreover, multiple heat dissipation systems help to control and minimize the power compression effects up to the rated power level. The result is the higher Maximum Output Level rating for a subwoofer of this size, weight and power. Power and control, without compromises, up to the last watt.

The unusually low distortion and the unexpected long throw of model MOL1818 SubOne when compared with subwoofers having the same size and power rating makes it possible to achieve very high levels of performance from a smaller number of units. Particular attention has been focused on efficiency and tonal neutrality.
MOL1818 SubOne, thanks to its performances and ability to effortlessly reproduce extended low frequencies, may be used as the low frequency speaker in the PalcoPlus line-array system in place of the RAB1815 cardiod subwoofer.

Two MOL1818 SubOne units may be driven and controlled by one PLM6800 active processor or, in the case of customers preferring to use their own power amplifiers (suggested power up to 2500W/ch @ 4 Ω, AES), driven by a LM24 controller. Dedicated factory presets are available for both controllers.
The extremely sturdy cabinet is built with 18 mm birch multiply covered with an anti-scratch surface finish; it is fitted with internal driver-protection grills, castors with brakes and carved out handle cavities on both sides of the cabinet.

Suitable for both open and closed venues, MOL1818 SubOne is the right choice for rental companies, big touring systems, fixed and semi-permanent installations.
Sports stadiums
Concert Halls
Medium to large size theaters
Medium to large size clubs
Large events

Technical Specifications
ComponentsCustom-designed according to Montarbo® specifications
Frequency response42 Hz ÷ 90 Hz (-3dB) no EQ.
35 Hz ÷ 120 Hz (-10dB) no EQ.
Transducers2 x 18" woofers, 4,5" voice coil
Nominal Impedance4 Ω + 4 Ω
Max SPL144 dB/1m with PLM6800 (1700 W + 1700 W, 4 Ω)
Max handling power2500 W + 2500 AES/4 Ω
Connectors8 poles Speakon®
FittingsCarrying handles
Optional wheels
Dimensions (WxHxD)1160 x 605 x 900 mm
Weight108 kg
Protective cover for MOL1818 SubOne and MOL1818A.[+]

Element of the PalcoPLUS line-array system, designed to further increase the system's flexibility of use and tonal quality.[+]


Special version of RA18, with a custom LF driver (rated at 3400W@8Ω) featuring a carbon fiber cone and a 5.3" voice...[+]


Cardiod bass-horn, designed to extend the frequency range of the PalcoPlus system down to 30 Hz. This innovative sub-bass...[+]


Two-way, line-source element.
This compact enclosure offers 1000 W of applicable continuous power per unit, in a...[+]


Networkable self-powered subwoofer equipped with two 18" custom built long excursion woofers. Earth218 is powered by a...[+]

MOL1818A SubOne

Band-pass horn-loaded bi-amplified active subwoofer.
Designed for live music performed in medium to large venues...[+]

Large cover for two-three MOL1818 SubOne units[+]

Powered processor. PLM6800 is an innovative "powered loudspeaker controller": the combination of a versatile DSP loudspeaker...[+]


Prolight+Sound is one of the most important shows for Pro Audio and Montarbo will be exhibiting, Hall 3.1 B40,...[+]

Montarbo at the Winter Namm Show 2017
Montarbo at the Winter Namm Show 2017[+]
Montarbo was part of Hard Summer Music Festival 2016.
Hard festival took place last 30th-31st of July. This year the concert debuted at Auto Club Speedway of Fontana in California.[+]
Montarbo Sound & Urban Street Art
Some of the most experienced live pro installers have been involved by the sound of our sub and satellites.[+]