ENGLISH - Montarbo

W28AsW24AsSPECIFICATIONSW28As - active bi-amplifiedSPECIFICATIONSW24As - active bi-amplified• Enclosure2-way; vented; flyableComponentscustom designed- bass frequencies 2 x 15” neodymium magnet,high efficiency woofers (3” voice coil)- mid/high frequencies 2” neodymium driver(4” voice coil, titanium diaphragm)constant directivity horn (60°H x 40°V)Impedance4 ohms (bass) / 8 ohms (mid/high)Frequency response45 Hz ÷ 20 kHz ±3dB- bass frequencies 45 Hz ÷ 900 Hz- mid/high frequencies 900 Hz ÷ 20 kHzSensitivityMax. SPL106 dB SPL @ 1W/1m on axis137 dB• Enclosure2-way; vented; flyableComponentscustom designed- bass frequencies 2 x 12” neodymium magnet,high efficiency woofers (3” voice coil)- mid/high frequencies 2” neodymium driver(3” voice coil, titanium diaphragm)constant directivity horn (60°H x 40°V)Impedance4 ohm (bass) / 8 ohm (mid/high)Frequency response50 Hz ÷ 20 kHz ±3dB- bass frequencies 50 Hz ÷ 1000 Hz- mid/high frequencies 1000 Hz ÷ 20 kHzSensitivityMax. SPL103 dB SPL @ 1W/1m on axis134 dB• Active electronic x-overCrossover frequency24 dB/oct Linkwitz-Riley filter900 Hz• Active electronic x-overCrossover frequency24 dB/oct Linkwitz-Riley filter1000 HzThe bass section utilizes 2 x 15”(3“ voice coil) high efficiencywoofers, with lightweightneodymium magnet assemblies,capable of delivering anexceptionally accurate and detailedhigh-impact sound.The mid-high section is equippedwith a 2” neodymium compressiondriver - with titanium diaphragmand an innovative 4” voice coil -coupled to a constant directivityhorn (dispersion 60° V x 40° H).The whole mid high rangeis reproduced with excellentdefinition. Vocal harmonics andinstruments are rendered withplenty of punch and precision,and remain tightly focused evenat great distances.The two on-board poweramplifiers deliver a total outputpower of 1200 W divided into900 W for the bass section and300 W for the mid/high section.• Built-in amplifiers2 MosFet, class AB, dedicated power unitswith 2 independent dynamic processors and‘soft start’ circuitMax. output power 1200 W (900 W + 300 W)Frequency responseInput impedanceInput sensitivityNoise referred to input• Connections• Construction• Fittings35 Hz ÷ 25 kHz +0/-1dB10 kOhms (balanced)0 dB (775mV)- 108 dB (A weighted)balanced 3-pin XLR input and outputmains Neutrik PowerCon® connectortrapezoid; birch multiply;antiscratch polyurethane paint;powder coated steel protection grillespeaker stand adaptor;carrying handles;industry standard flying hardwareThe bass section utilizes 2 x 12”(3“ voice coil) high efficiencywoofers, with lightweightneodymium magnet assemblies,capable of delivering anexceptionally accurate anddetailed high-impact sound.The mid-high section isequipped with a 2” neodymiumcompression driver - with titaniumdiaphragm and 3” voice coil -coupled to a constant directivityhorn (dispersion 60° V x 40° H).The whole mid high rangeis reproduced with excellentdefinition. Vocal harmonics andinstruments are rendered withplenty of punch and precision,and remain tightly focused evenat great distances.The two on-board poweramplifiers deliver a total outputpower of 1050 W divided into800 W for the bass section and250 W for the mid/high section.• Built-in amplifiers2 MosFet, class AB, dedicated power unitswith 2 independent dynamic processors and‘soft start’ circuitMax. output power 1050 W (800 W + 250 W)Frequency responseInput impedanceInput sensitivityNoise referred to input• Connections• Construction• Fittings35 Hz ÷ 25 kHz +0/-1dB10 kOhms (balanced)0 dB (775mV)-108 dB (A weighted)balanced 3-pin XLR input and outputmains Neutrik PowerCon® connectortrapezoid; birch multiply;antiscratch polyurethane paint;powder coated steel protection grillespeaker stand adaptor;carrying handles;industry standard flying hardware• Dimensions / WeightW 48 x H 109.6 x D 40 cm / 47 kg• Dimensions / WeightW 41.4 x H 94.3 x D 36.8 cm / 42,5 kg

M44Abi-amplified active stage monitor• High sound pressure level with maximum definition, absolutely flatM44A utilizes a specially designed- 2 active dynamic processorsfrequency and phase responses.coaxial unit allowing for greatoptimise the specific features ofsonic accuracy: it houses a 15”each component and provide• Low susceptibility to feedback. Excellent intelligibility, no distortion orneodymium magnet woofer anddirect control of the operation ofcoloration.a 1.5” neodymium compressionthe systems, ensuring a constantlydriver with titanium diaphragm.flat frequency response.• Complete synergy of acoustic and electronic design elements.They feature independent timeDedicated power amplifiers and control electronics ensure outstandingThe built-in electronics includes:constants (and operatingworking performance.- 2, class AB, Mosfet amplifiers,thresholds that are sensitive to lineeach one fitted with our exclusivevoltage) and limit any excessive• Neodymium-based transducers - entirely custom designed toloudspeaker protections and avoice coil movement under theMontarbo specifications - and toroidal transformer provide a significantsoft-start circuit to reduce the peakmost demanding operatingCompact size, high sound pressure and high margins ofgain before feedback, combined with extreme clarityand maximum transparency. This is what musicians andsound technicians demand from a stage monitor; andthis is what they’ll find in our M44A model, all in acompact, lightweight and ultra-flat package, capableof being heard without being seen by the audience.M44A features a coaxial driver design which ensuresmaximum phase coherence. This monitor has beenspecially designed to provide elevated sound pressurelevels without neglecting any detail of the low-pitchedrange. It is the perfect solution for drummers andbass players, guaranteeing excellent performance evenunder the most challenging stage conditions.weight saving.• Design and construction meet the highest professional standards formaximum reliability:- strong and sturdy cabinet with highly resistant polyurethane paint finishand steel protection grid- low turbulence tuning ports- controls and connections are conveniently placed on one sideof the cabinet for increased ease of use- ergonomically designed handle, balanced to the box’s centre of gravity,make transport easier.The dual angle cabinet’s profileallows for maximum setupflexibility and helps in optimizinglistening, from short or longdistances.current drain at switch-on.The two on-board power amplifiersdeliver a total output power of500 W divided into 350 W for thebass section and 150 W for themid/high section.conditions. Unimpeded operationis guaranteed even when thesystem is subjected to extreme linevoltage excursions.- a high slope active electroniccrossover (24dB/oct. Linkwitz-Riley) guaranteeing phasecoherency and perfect overlappingof acoustic emissions of thetransducers in the crossoverregion.SPECIFICATIONS• EnclosureM44A - active bi-amplifiedlow profile 2-way vented boxlow turbolence portsComponents:custom designed coaxial loudspeaker- bass frequencies 15” high efficiency neodymiummagnet woofer (3” voice coil)- mid/high frequencies 1.5” neodymium compression driver(titanium diaphragm - 3” voice coil)Impedance8 ohmsFrequency response:42 Hz ÷ 20 kHz ±3dB- bass frequencies 42 Hz ÷ 1000 Hz- mid/high frequencies 1000 Hz ÷ 20 kHzSensitivityMax SPL• Active electronic crossoverCrossover frequency:• Built-in power amplifiers101 dB SPL @ 1W/1m on axis129 dB24 dB/octave Linkwitz-Riley filter1000 Hz2 MosFet, class AB, dedicated power unitwith 2 independent dynamic processors and‘soft start’ circuitMax. output power: 500 W (350 W + 150 W)Frequency responseInput impedanceInput sensitivity:Noise referred to input10 Hz ÷ 40 kHz +0/-1dB10 kOhms (balanced)0 dB (775mV)-110 dB (A weighted)• Connections• Construction• Fittings• Dimensions / Weightbalanced Neutrik Combo® input(XLR + 1/4” jack)Balanced XLR output (link)multiply birch; antiscratch polyurethane paint;powder coated steel protection grillecarrying handleW 50 x H 35.5 x D 58.3 cm / 23.8 kg

The contents of this publication are ©2009 by Elettronica Montarbo srl.Data, text and pictorial material may not be reproduced in any manner withoutprior written permission of Elettronica Montarbo srl. All rights reserved.Printed in Italy.The information contained in this catalogue has been carefully drawn up andchecked, however no responsibilities will be assumed for any inexactitude.Technical data and appearance of products are subject to changewithout prior notice.The trademarks Neutrik Speakon ® , Combo ® and Power Con ® are property of Neutrik.April 2009