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Aero
User Manual
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D.A.S. Aero User Manual

AERO-38 series
Manual del Usuario / User’s Guide
AERO-38A / AERO-38
®
AERO-218A / AERO-218Sub AERO-182A / AERO-182
Precauciones de seguridad Safety Precautions
D.A.S. Audio s.a.
El signo de exclamación dentro de un triángulo indica la existencia de componentes internos cuyo reemplazo puede afectar a la seguridad. También indica instrucciones importantes defuncionamientoymantenimiento.
El signo del rayo con la punta de flecha alerta contra la presencia de voltajes peligrosos no aislados. Para reducir el riesgo de choqueeléctrico, noretire lacubierta.
Conserve estas instrucciones. Siga todas las advertencias. Lea todas las instrucciones.
Aparato de Clase I. [AERO-38A, AERO-218A, AERO-182A]
Para una protección continua contra el riesgo de fuego, reemplace el fusible únicamente con otrodel mismo tipo, que se indicaen lacubierta dela unidad.
No instale el sistema cerca del agua, piscinas y fuentes por ejemplo.No depositesobre élrecipientes quecontengan líquidos.
The exclamation point inside an equilateral triangle indicates the existence of internal components whose substitution may affect safety.Also indicates importantoperating instructions.
The lightning and arrowhead symbol warns about the presenceof uninsulated dangerous voltage. To reduce the risk of electric shock,do notremove thecover.
Keep these instructions. Heed all warnings. Follow all instructions.
ClassI device.[AERO-38A, AERO-218A, AERO-182A]
For continued protection against risk of electric fire replace fuse only with same type fuse, which is indicated on the cover of the unit.
Do not expose this device to rain, moisture or splash without usingthe rainprotector suppliedby DAS.
Do not use this apparatus near water- for example, swimming pool, fountain. Do not place any object containing liquids as bottleson thetop ofthe unit.
No instale el aparato cerca de ninguna fuente de calor como radiadores,estufas uotros aparatosque produzcancalor.
Desconecte este aparato durante tormentas eléctricas, lluvia torrencial, terremotos o cuando no se vaya a emplear durante largosperiodos.
No existen partes ajustables por el usuario en el interior de este equipo. Cualquieroperación demantenimiento o reparación debe ser realizada por personal cualificado. Es necesario el servicio técnico cuando el aparado se haya dañado de alguna forma, tal como que el cable de corriente o el enchufe se hayan dañado, haya caído líquido o algún objeto en el interior del aparato, el aparato haya sido expuesto a lluvia o humedad, no funcione correctamenteo hayarecibido ungolpe.
Clean only with a dry cloth. Do not use any solvent based cleaners.
Do not install near any heat sources such as radiators, heat registers,stoves, orother apparatusthat produceheat.
The power cord supplied with your unit has a 3-pin type plug (X type). Do not cut off ordamage the grounding pin. If the provided plug does not fit in your outlet, consult an electrician for replacement of the obsolete outlet. Protect the power cord from beingwalked onorpinched.
Unplug this apparatus during lightning storms, heavy rain, earthquakesor whenunusedfor longperiods oftime.
No user serviceable parts inside. Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, doesnot operatenormally,or hasbeen dropped.
Nuncacuelgue máscajas delas recomendadaspor elfabricante. Never exceed the maximum number of units to be flown
El doble cuadrado indica equipo de Clase 2 en sistemas de amplificaciónexterna: AERO-38,AERO-218Sub yAERO-182.
The appliance should be flown only from the rigging points and by qualified personnel.Do not suspendthe box fromthe handles. Do not use instead of quick release pins any other element as fasteners.
recommendedby themanufacturer.
The double square indicates Class 2 device; models : AERO-38, AERO-218Sub andAERO-182.
1. SYSTEM DESCRIPTION
The D.A.S. Audio AERO series offers two units for applications requiring precise control of the vertical coverageand high sound pressurelevels. The AERO-38 is an externally powered, three-way, high efficiency linearray module which integratestwo 12” low frequency unitswith 4” voice coils, two 10” mid­range devices which utilize 3” voice coils and one compression driver with 4” coil and 1.5” exit geometry in a single unit. The compression driver is coupled to the Serpis-38 high frequency plane wave adaptor insuring coherent high frequency summing and the generation of a flat, isophasic wave front. When increased sound pressure level in the low frequency range is required, the system can be used in conjunction with the AERO-218Sub
or AERO-182
subwoofer units. There are self powered version of eachcabinet, AERO-38A, AERO-218A, AERO-182A.
The model AERO-38 includes two 12GNC 12” cone transducer with 4” EFW voice coils and Neodymium magnet assemblies in a bass-reflex configuration. Two 10LMN16, 10” speakersarranged in a V shape, incorporating 3” EFW voice coils, Neodymium magnet assemblies and TAF cooling system are used for mid-range reproduction. High frequencies arehandled byone ND-10 high frequency compression driver with 4” EFW coil, Neodymium magnet and1.5” exit coupledto one SERPIS-38 plane wave guide. The SERPIS-38 plane wave adaptor also serves as a heat sink for the compression driver. The AERO-218 include two 18GN 18”
Sub and AERO-182
cone transducers with 4” EFW voice coils and Neodymium magnets. These cabinets are intended for applications when extending the frequency range ofthe systemis required.
1380
The system is ideal for applications such as large-scale outdoor/indoorevents inarenas, stadiums or theaters. Use of the DSP-3VS digital processor is
for
recommended for theAERO-38 and the DS
P-1Sub
the subwoofer system(AERO-218Sub or AERO-182). Not using the
DSP-3VS digital processor with the AERO-38 will adversely affect the sound quality and maydamage systemcomponents.
Both units are manufactured using 15/18 mm Finnish Birch plywood. The AERO-38 enclosure shape is trapezoidal with 5º angles. The AERO-
Sub and AERO-182
218 enclosures are rectangular. The Aero-38 and AERO-182 systems incorporate captive rigging hardware which is compatible with one another and designed to provide a fast, simple and safe rigging by means of quick release safety pins. Splay angles can be changed from 0º to 3.2º in
0.8º increments and from 3.2º to 9.6º in 1.6º increments.
Tofacilitate transport,the AERO-38units are equipped with a PL-38 front dolly panel attached by means ofthe rigginghardware. Thefront dollypanel is useful when rigging systems. The PL-48S, a metal dolly for vertically stacking 3 to 4 AERO-38 units is available as an accessory. The AERO-218 units
Sub
can bemoved by way of the fourrear located casters. Also theAERO-182 system incorporates a PL-48dolly panelusefull totransport thecabinet.
The loudspeakers used in the system feature advanced technologies; new TAF (
flow)
cooling systems,Neodymium magneticcircuits
total air
which allowfor importantweight reductions,titanium diaphragms for the highfrequency sections, and low­mid frequency cones manufactured using crossed fibers and elastic suspension that provide exceptional stabilityin thevertical plane.
1010
316
595
AERO-38
ALL DIMENSIONS IN MILIMETERS
1400
WARNING!DONOTSUSPENDFROMTHISHANDLE
WARNING!DONOTSUSPENDFROMTHISHANDLE
¡ATENCIÓN!NOCUELGUELACAJADEESTEASA¡ATENCIÓN!NOCUELGUELACAJADEESTEASA
¡ATENCIÓN!NOCUELGUELACAJADEESTEASA¡ATENCIÓN!NOCUELGUELACAJADEESTEASA
475
823
580
AERO-182
ALL DIMENSIONS IN MILIMETERS
WARNING!DONOTSUSPENDFROMTHISHANDLE
WARNING!DONOTSUSPENDFROMTHISHANDLE
¡ATENCIÓN!NOCUELGUELACAJADEESTEASA
¡ATENCIÓN!NOCUELGUELACAJADEESTEASA
224
236
AERO-218Sub
ALL DIMENSIONS IN MILIMETERS
36
WARNING!DONOTSUSPENDFROMTHISHANDLE ¡ATENCIÓN!NOCUELGUELACAJADEESTEASA¡ATENCIÓN!NOCUELGUELACAJADEESTEASA
680
¡ATENCIÓN!NOCUELGUELACAJADEESTEASA WARNING!DONOTSUSPENDFROMTHISHANDLE
WARNING!DONOTSUSPENDFROMTHISHANDLE ¡ATENCIÓN!NOCUELGUELACAJADEESTEASA¡ATENCIÓN!NOCUELGUELACAJADEESTEASA
36
¡ATENCIÓN!NOCUELGUELACAJADEESTEASA WARNING!DONOTSUSPENDFROMTHISHANDLE
256
220
Aero-38 Manual del usuario/ User´s manual 43
2. RIGGING SYSTEM
2.1WARNING
Thismanual containsneeded informationfor flying D.A.S. Audio line array systems, description of the elements and safety precautions. To perform any operations related to flying the system, read the present document first, and act on the warnings and advice given. The goal is to the allow the user to become familiar with the mechanical elements required to fly the acoustic system, as well as the safety measures to be taken during set-up and teardown.
Only experienced installers with adequate knowledge of the equipment and local safety regulations should fly speaker boxes. It is the user's responsibility to ensure that the systems to be flown (including flying accessories) comply with state and localregulations.
The working load limits in this manual are the results of tests by independent laboratories. It is the user'sresponsibility to staywithin safe limits. Itis the user's responsibility to follow and comply with safety factors, resistance values, periodical supervisions and warnings given in this manual. Product improvement by means of research and development is on going at D.A.S. Specifications are subjectto changewithout notice.
To this date, there is no international standard regarding the flying of acoustic systems. However, it is common practice to apply 5:1 safety factors for enclosures and static elements. For slings and elements exposed to material fatigue due to friction andload variationthe following ratios must be met; 5:1 for steel cable slings, 4:1 for steel chain slings and7:1 polyester slings. Thus, anelement with a breaking load limit of 1000 kg may be statically loaded with 200 kg (5:1 safety factor) and dynamicallyloaded with142 Kg(7:1 safetyfactor).
When flying a system, the working load must be lower than the resistance of each individual flying point in the enclosure, as well as each box. Hanging hardware should be regularly inspected and suspect unitsreplaced if indoubt. This is importantto avoid injuryand absolutely no risksshould be taken in this respect. It is highly recommended that you implement an inspection and maintenance program on flying elements, including reports to be filled out by the personnelthat willcarry outthe inspections.Local regulations may exist that, in case of accident, may require you to present evidence of inspection reports andcorrective actionsafter defectswere found.
Absolutely no risks should be taken with regards topublic safety.When flying enclosures from ceiling support structures, extreme care should be taken to assure the load bearing capabilities of the structures so that the installation is absolutely safe. Do not flyenclosures from unsafe structures. Consult a certified professional if needed. All flying accessories that are not supplied by D.A.S. Audio are theuser's responsibility.Use atyour ownrisk.
2.2 DESCRIPTION/ACCESSORIES
D.A.S. Audio AERO-38 and AERO-182 line array systems, include 2 rigging structures on each side of the box. Manufactured from zinc plated steel they are painted black and are affixed to an internal plate with special cropresistant screws. Two special stainless steel guides are assembled to each of the structures: G1A48 (front guide) and G2A48 (back guide), allow for stacking or flying of boxes.
Splay angles can be changed from 0º to 3.2º in 0.8º increments and from 3.2º to 9.6º in 1.6º increments.
To lock both guides, six (6) quick release safety pins (supplied)must beused.
The G1A48 front guide provides a solid connection to the box and whatever is on top of it, while the G2A48 rear guide determines the vertical splay angle (whether stacked or flown), as a function ofthe holewhere thepin getsinserted.
G2A48
QUICK RELEASE PIN 8X30 (6 UNITS PER CABINET)
G1A48
To aid the setting of the G2A48 guide in the corresponding hole inthe topbox, each hole is labeled with an associated angle, both for stacked and flown applications. To fit the guides into the holes, highly resistant 8 mm quick release pins with a ball safety lock are used.
FLY
STACK
9.6º
8º
9.6º
6.4º
8º
4.8º
6.4º
3.2º
4.8º
3.2º
2.4º
1.6º
0.8º
0º
Splay angles
1.6º
0.8º 0º
Aero-38 Manual del usuario/ User´s manual 44
For flying boxes and defining the splay angle, thepins must beinserted in the of guide2, G2A48, whereas for stacking ( ), the pin goes throughthe ofthe guide.
top hole
STACK
FLY
slot
stacked
All of theelements needed to rig orstack the systems areintegral to theenclosure (
G1A48, G2A48
and the quick release safety pins). The additional items needed are the AX-AERO48 or AX-AERO38 flying grids (bumper bars),chains and hoists, the PL­38 or PL-48S dolly platforms and the AX-COMBO
A) AX-AERO48 andAX-AERO38
B) Chain hoists
All units in a column will be flown from the AX-AERO48 (AX-AERO38) flying grid (bumper bar), which should be used with two hoists, one located in the front and the other in the rear. Each hoist should have a minimum of1 Ton load capacity when flying up 8 units and a 2 Ton load capacity when flying 9 to 16 units.
Load capacity per hoist (safety factor 10:1)
AX-AERO48
AERO-48
AERO
AERO-38
1 8units-->
9 16units-->
1 8units-->
182
9 16units--> 1 10units-->
11 20units-->
>1000Kg >2000Kg >1000Kg >2000Kg >750Kg >1500Kg
AERO-48
AERO
AERO-38
1 6units-->
1 6units-->
182
1 8units-->
For example, if 12 units AERO-48 are going
to be flown from the AX-AERO48, each hoist to be usedshould havea loadcapacity of2 ton.
AX-AERO38
>750Kg
>750Kg
>750Kg
The AX-AERO48 grid is made from 100 x 50 x 6mm steel beams and is designed to handle great loads. It features a center reinforcement bar that is also used for the lifting slings. The force of both the rear and the front chain hoist will determine the tilt angle of the whole array. The structure will be attachedto thefirst enclosureof thearray bymeans of the guides G1A48, G2A48, and six quick release safetypins.
Pickup points
Weight
: 75Kg (165 lbs)
Dimensions: 144x93x10 cm
(HxWxD)
57x36.6x4 in
The AX-AERO38grid is lighter than theother one, and it is recommended to be used to fly a maximum of 8 cabinetsAERO-38Aor 6AERO-48.
Weight
: 60Kg (132 lbs)
Dimensions: 147x62x10 cm
(AlxAnxP)
57.8x24.4x4 in
C) Platforms PL-48 and PL-38
The PL-38 dollypanels facilitate transport of the AERO-38 systems. They can also be used to facilitate flying the systems. Each coveris attachedto the enclosure by using the flying hardware attached to each box and is fixed with thequick release safety pins. The AERO-182 systems also include one PL-48 dollypanel percabinet.
AERO-38
PL-38
AERO-182
PL-48
Aero-38 Manual del usuario/ User´s manual 45
D) PL-48S
The PL-48Splatform isa valuableaccessory which allowsup to 4 AERO-38units to betransported in astacked position,ready tobe flown. The PL-48S is made from steel and has 4 heavy duty casters with lockingbrakes.
AX-AERO48
AERO-38
AX-COMBO
AERO-28
PL-48S
E) AX-COMBO
The AX-COMBO is a rigging adapter to be used when Aero-28 units are needed to be flown under AERO-38 units as dowfillsystems. Maximum 6 CA-28A unitsand 8CA-28/CA-28B units can be flown from this rigging grid. The AX-COMBO includes front and rear steel guides which permit variation of the angle between it and the last AERO-38 cabinet in the cluster.Anglesvary from0.0º to9.6º.
The AX-COMBO is joined to the last AERO­38 cabinet using G1A48 and G2A48 included steel guides and6 quickrelease pins.The angledepends on the hole of the rigging structures where the pins are inserted, through the slots of G2A48. The first AERO­28 unit is joined to the AX-COMBO using its G1A and G2Aincluded camlinks.
On the next page is a table with the angles between both systems depending on the hole where the quick releasepin isbeing inserted.
G1A48
G2A48
G1A48
AX-COMBO
G2A48
Weight
: 16.5Kg (36.3 lbs)
Dimensions: 143x60x5cm (56.3x23.6x2in)
Aero-38 Manual del usuario/ User´s manual 46
SPLAY ANGLES USING THE AX-COMBO
F) QUICK RELEASE PINS
Each cabinet includes 6 steel heavy duty quick release pins stored on the rear panel of the cabinets.
Both systemsAERO-38, andAERO-182 can be flown using steel structures located on boths sides of the cabinets. NEVER REPLACE QUICK RELEASE PINSWITH SCREWSOR OTHERELEMENTS!!!
Aero-38 Manual del usuario/ User´s manual 47
Pins
Pins can be used to free the pieces
G1A48, G2A48.
2.3 SAFETY FACTORS
3. SELF-POWERED SYSTEMS
The safety factor is defined as the coefficient between the
breaking load limit and the maximum safe working load limit (SWLL). In this case, the breaking load limit of each of the flying points is 4,000 kg (8,820 lbs) as determined by destructive testing in independent laboratories. With a 10:1safety factor, atotal amount of 1,600 kg(3,527 lbs) can be flown from the 4 flying points. Each flying point has a capacity of 400 kg (882 lbs) with a 10:1 safetyfactor.
4 x 400Kg (10:1)
T
he maximum number of AERO-38 units that can be suspended from the AX-AERO48 flying grid is 20 (with 10:1 safety factor). T
he maximum number of AERO-182 units that can be suspended from the AX-AERO48 flying grid is 16 (10:1).
The maximum limits established by the manufacturer shouldnever beexceeded.
Theuse oftwo hoistswith aload capacityas expressed on the previous page is mandatory. It should be kept in mind that at certain moments, the complete load may be supported by only one of the hoists.
This is why the load capacity of the individual hoist must be superior to the weight of the array column.
NOTE: The rigging systems of the AERO-38 and the AERO-48 are compatible. Some accessories (AX­AERO38,AX-AERO48) canbe usedby bothsystems.
3.1 AERO-38A
The Aero-38A is a three way, class D, self
powered system.
Nominal amplifier power (RMS) per way:
LF:1000W MF: 500W HF:500W
Amplifierpanel description:
A) : A
LIMIT
mplifier limiter indicator lights. When lit, the level of the signal source should be reduced.
B) :
SIGNAL
Signal presence indicator at the
amplifiers'inputs.
C) :
ON
Indicator light for each amplifier
channel.
D) : Indicatesthat theamplifier
PROTECTION
is underprotection mode because damage riskdue to shortcircuit orextreme workingtemperature.
E) .
FUSE
F1) :
AC INPUT
With PowerCon NAC 3 FCA connector. Only when the connector is inserted and rotated (clicked) into place will the AC turn on. The connector can be used as a switch, rotating the connector to or from the locked position will turn the unit onor off,respectively.Mute thesignal feedingthe
beforeturning theunit onor off.
INPUT
F2) :
AC OUTPUT
With (white) PowerCon NAC 3 DFCB connector. This is used as an AC loop thru sothat upto boxes can bepower from
6 (at 230V)
asingle ACline.
G) :
INPUT
Balanced signal XLR. Pin
assignmentsas follows:
1=GND(ground) 2=(+)Non invertedinput 3=(-)Inverted input
H
LF
MF
PROTECTION
HF
G
H) :
LOOP THRU
Used for paralleling several units, which will share the same input. The outputcan also be used to provide signal for an outboard power amplifier.
F1
F2
E
F1-PowerCon NAC 3FCA F2-PowerCon NAC 3DFCB G-Input XLR H-Output XLR
E-Fuse
ZOOM
C
DAAAB
ON
SIGNAL
Rear panel of the AERO-38A amplifier.
Aero-38 Manual del usuario/ User´s manual 48
3.2 AERO-182A
3.3 AERO-218A
Low frequency mono-amplified system. Nominal amplifier power (RMS) 1000W.
Amplifierpanel description:
A) : A
LIMIT
mplifier limiter indicator lights. When lit, the level of the signal source should be reduced.
B) :
SIGNAL
Signal presence indicator at the
amplifiers'inputs.
C) :
Indicator light for each amplifier
ON
channel.
D) .
FUSE
):
E AC INPUT
With PowerCon NAC 3 FCA connector. Only when the connector is inserted and rotated (clicked) into place will the AC turn on. The connector can be used as a switch, rotating the connector to or from the locked position will turn the unit onor off,respectively.Mute thesignal feedingthe
beforeturning theunit onor off.
INPUT
F) :
INPUT
Balanced signal XLR. Pin
assignmentsas follows:
The Aero-218A is a low frequency mono­amplified system. Nominal amplifier power (RMS) 2 x 1000W.
H
A B C
G
F
D
Amplifier panel on AERO-218A and AERO-182A systems.
3.4 AC POWER REQUIREMENTS
The required voltage for all models is:
E
1=GND(ground) 2=(+)Non invertedinput 3=(-)Inverted input
G) :
LOOP THRU
Used for paralleling several units, which will share the same input. Could also be usedto providesignal foran outboardpower amplifier.
H) : Used to control the
SUB LEVEL
subwoofer level. To prevent accidental mis-setting, a flat-blade screwdriver isneeded to rotate the control, which is recessed and detented. Depending on the sensitivity, placement and configuration of your mid­high system, you may need to adjust this control for balancedfrequency response.
NOTE: The amplifiers on the AERO-218A and AERO-182A systems do not inlclude a filtered satelliteoutput forAERO-38A systems.
115V, 50Hz/60Hz - 230V, 50Hz/60Hz
Maximum voltage (divide by 2 for115V):
264V
Shutdown voltage (divide by 2 for 115V):
Aero-38A: 156V Aero-182A / Aero-218A: 160V
3.5 CURRENT CONSUMPTION
AERO-38A
Maximum Power 8A
1/3 Power 1/8 Power
Idle
Sine 85Hz
Pink noise
3.2A
1.6A
0.25A 0.25A
2.5A
----
----
AERO-182A / AERO-218A *
Sine 50Hz Pink noise
Maximum Power
1/3 Power 1/8 Power
Idle
7A 2.5A
3.0A
1.1A
----
----
0.1A 0.1A
Data obtained at 230V, multiply per 2 for 115V. *For 2000W versions multiply per 2. Maximum power: Measured in conditions of severe clipping.
Aero-38 Manual del usuario/ User´s manual 49
3.6 SWITCH ON-OFF
3.9 ECUALIZATION
A sound system should be switched on sequentially. Switch on the self-powered unit last in your sound system. Switch on the sound sources such asCD players or turntables, thenthe mixer, then the processors, and finally the self-powered unit. If you have several units, it is recommended that you switchthem onsequentially oneat atime.
Follow theinverse orderwhen switchingoff, turning self-powered units off before any other elementin thesound system.
Mute all signal sourcesbefore switching the uniton oroff.
3.7 INDICATORSOVERLOAD (LIMIT)
It is recommended that the red LED
LIMIT
indicators are not lit continuously; at most it should blinkonly occasionally.
If you wish to have a visual indicationat the mix position of whether the LIMIT LEDs are lighting, during equipment set-up, closelyobserve what mixer VUmeter level corresponds to the level that lights the enclosure's LIMIT LEDs. That level that should not be exceededduring theevent.
3.8 OVERHEATING
Due to their high efficiency, the Aero Series amplifiers generate very little residual heat and therefore do not need a fan for cooling. In normaluse, theamplifier panelwill bewarm tothe touch.
If theunit stops playing(or just the mid-high or the bass sections), the amplifier's overheating protection may be activated to protect the componentsfrom thermaldamage.
The units do not need extreme EQ. Avoid high levels of gain on the equalizers. Gain values above +6 dB on a console's EQ are not recommended.
3.10 LOW MAINS VOLTAGE
If mains voltage falls below the shutdown voltage for the unit, it will stop playing. When acceptable levels are regained, the unit will switch backon automatically.
3.11 CONNECTIONS
The AERO-38A can be used full-range. Full­range use is only recommended for applications where low SPL level and no bass reinforcement is adequate. Touse it inthis mode simply plug themixer intothe enclosure'sinput.
The most common use will be combined with the AERO-218A (AERO-182A). In this case different outputs of the mixing console will be used with theAERO-38A andthe SUBS. Both sub systems, AERO-182A andAERO-218A include signal treatment in the amplifiers extending their frequencyrange up to 85Hz. As well, the amplifier of the AERO-38A incorporates signal treatment which provides frequency range extension down to 60Hz. Due to this overlap between 60-85Hz the use of an
to control and adjust the phase of the subs
delay is
external
recommended.
AERO-38A
Retardo/
Mezclador/Mixer
Delay
Procesador/
processor
AERO-182A
Overheating may be due to insufficient cooling, or to very aggressive use in extremely hot conditions. Do not use the unit in proximity to high powerlights.
Once the amplifier cools down, it switches back on automatically. If the unit should shut down again, try reducing the volume a notch to avoid overheating.
in parallel with the input connector and is useful for daisy chaining the input signal to a number of boxes, connectingthem inparallel.
way depends on the output impedance of the equipment drivingthe enclosure, such as the mixeror processor. Typically, to avoid signal degradation, the
The connector is an output XLR
LOOP THRU
The number of units that can be linked this
maximum number that can be daisy chained is given by the formula Zc>10Zs, where Zc is the load impedance and Zs is the output impedance of the equipment driving theenclosure (mixer, console, etc). For instance, a mixing console with 100 ohm output impedance allowsdaisy chaining 20boxes, when the inputimpedance ofthe cabinetsis 20Kohm.
Aero-38 Manual del usuario/ User´s manual 50
As can be seen in the diagram, independent signal lines exist forthe subwoofer units, AERO-182A. The signal that goesto thesubs isprocessed bymeans ofthe DSP-1Subto adjustthe delaybetween bothsystems.
3.12 RAIN PROTECTOR
Electronic devices can be damaged when exposed to water or moisture. AERO-38A and AERO­182A/218A amplifiers must be protected when installed outdoors. A rain protector is supplied with eachAERO-38Aand AERO-182A/218Aunit.
The rain protector is specially designed to withstand soft rain and other meteorological conditions for short periods of time. In the case of heavy rains, storms or permanent outdoors installations the sound system must be protected
AERO-38A rain protector.
withadditional elements.
NOTE: Therain protector of the AERO-38A is different
The rain protectors supplied with each unit
fromthe onethat includesthe AERO-38.
havebeen manufacturedwith fireproofmaterials.
The AERO-38A's rain protector features severalsmall holeson thetopside toallow convection coolingof theamplifier.
AERO-38 rain protector.
Aero-38 Manual del usuario/ User´s manual 51
3.13
HOW TO MAKE A PASSIVE
SYSTEM INTO A SELF POWERED ONE.
AERO-38 -->AERO-38A:
AERO-38 passive systems come with a metallic backplate, protected bya rain protector,that features two Speakon NL8 connectors. To a passive system into an active one, firstly the screws 11x (3.9x19Pv00)and therain protecto Once this has been done, the M4x20 screws
remove 14 x
convert
loosen
r.
thatfix theback plateto thebox.
On the rear side of theback plate the cables coming from the Speakon connectors lead to a white male connector, which is inserted in a white female connector attached to the box. Unplug the male connector coming from the Speakon connectors and insertthe maleconnector oftheamplifier inthe female connectoron thebox.
The fourM4x30 DIN 7985must be screwed in thefour holes that canbe seen on theradiator area. The white arrows in the picture above point to the mentionedholes.
Different rain protectors are needed for the passiveand theactive versions!!!
The rain protector for the self powered version is supplied with the amplifier. In order to attach it to the box just rest the protector on the receptacleand retightenthe eleven3.9x19PV00 on.
The white connector mentioned above can be plugged only in one way, so a mistake in the connections is mechanically impossible. Make sure that the connection is tight enough, then put the amplifier in its receptacle paying attention that wires donot getcaught.
The next step will be to fix the amplifier to thebox withthe screwssupplied:
10x(M4x20 DIN 965) 4x(M4x30 DIN 7985)
This way the amplifier of the AERO-38A
systemhas beencorrectly installedin thebox.
Aero-38 Manual del usuario/ User´s manual 52
AERO-218Sub -->AERO-218A
To make a passive system into an active one, firstly the back plate must be removed by unscrewingthe 12M4x20 DIN965.
NOTE: As AERO-218A and AERO 182A
­amplifiers' polarity is inverted referenced to that of conventional external amplifiers, the polarity of the speakers' wires must be changed when switching froma passiveto anactive AeroSeries sub.
After cutting the speakers' wires on the
circuit board, terminals must beattached tothe
faston
speakers' wires as follows: to assure current polarity attach large 6.3mm female terminal to the black wire, and a smaller 4.8mm female
faston ,
faston
terminal to the red wire. Connecting the terminals to the correct male terminals on the amplifier circuit boardamplifie, thepolarity willbe correct.
Thenthe speakerwires mustbe cutfrom the
circuitboard.
It is highly advisable to shield the terminals
withtape orthermoretractable material:
Aero-38 Manual del usuario/ User´s manual 53
The large terminal
should be attached to the black wire, and the small
4.8mm wide redwire:
faston
6.3mm wide
terminal should be attached to the
faston
In the case of the AERO-218A the same
processapplies tothe secondamplifier inthe box.
Should you have any problem during this process do not hesitate to contact D A S factory or ourregional dealer.
...
Aero-38 Manual del usuario/ User´s manual 54Aero-38 Manual del usuario/ User´s manual
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