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.
Para reducir el riesgo de descarga eléctrica no exponga este
equipo a la lluvia, humedad o salpicaduras sin el protector de
lluviasuministrado porel fabricante.
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.
Limpie el aparato sólo con un paño seco. No use limpiadores
basadosen disolventes.
No instale el aparato cerca de ninguna fuente de calor como
radiadores,estufas uotros aparatosque produzcancalor.
El cable de alimentación suministrado con su unidad tiene
conector de tres terminales (tipo X). No corte o dañe el terminal
de tierra. Si el conector suministrado no puede conectarse en su
enchufe, consulte a un electricista para sustituir el enchufe
obsoleto. Proteja el cable de alimentación de ser pisado o
pellizcado.
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.
El colgado dela caja sólodebe realizarse utilizando los herrajes de
colgado y solamente porpersonal cualificado. No cuelgue la caja
delas asas.No reemplacepasadores deseguridad portornillos.
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
3.14 TROUBLESHOOTING
PROBLEM CAUSE SOLUTION
No sound from the unit.
The presence LED
SIGNAL
indicator(s) do(es) not light up.
Full power cannot be obtained.
The LED indicator(s) never
LIMIT
light(s) up.
Sound is distorted.
The LED indicator(s) is/are not
LIMIT
on, or only light up occasionally.
Sound is distorted and very loud.
One or more LED indicators
LIMIT
light up.
1- The signal source is sending
no signal.
2- Defective cable.
1- The signal source does not have
a hot enough output.
1- The mixer or signal source
is distorting.
1- The system is overloaded and
has reached maximum power.
1- Check that the mixer or sound
source is sending signal to the UNIT.
2- Check that the cable from the
sound source to the UNIT is
connected correctly. Replace the
cable if defective.
1- If using a mixer, use the balanced
output if available. Use a professional
mixer with a hotter output.
1- Turn mixer channel gains down.
Check that none of your signal
sources are distorting.
1- Turn down the mixer's output.
Hum or buzz when a mixer
is connected to the unit.
Hum or buzz when using lighting
controls in the same building.
The power on LED indicator(s) do(es)
not light up when the power connector
is rotated and locked at the
ON position.(LOCK)
1- The console probably has
un-balanced outputs. You may
be using an incorrect un-balanced
to balanced cable.
2- The mixer and the powered
speaker are not plugged into
the same mains outlet.
3- The audio signal cable is too
long or too close to an AC cable.
1- The audio signal cable is too
long or too close to the lighting cable.
2- On a sound system with threephase AC, the lighting equipment
and the UNIT are connected to
the same phase.
1 Bad or loose AC connection to
the UNIT or the mains outlet.
2 Faulty AC cable.
1- Read the appendix of this manual
to make a correct un-balanced to
balanced cable.
2- Connect the mixer and the unit
to the same mains outlet.
3- Use a cable that is as short as
possible and/or move the audio
signal cable away from mains cables.
1- Move the audio signal cable away
from lighting cables. Try to find out
at what point the noise is leaking
into the system.
2- Connect the sound system to
a different phase than the lights.
You may need the help of an electrician
1- Check you connections.
2- Check the cables, connectors
and AC power with a suitable
mains tester.
3 Blown Fuse.
3- Replace fuse on fuse holder with
one of the same type. If it blows again,
take the unit to a service centre.
Aero-38 Manual del usuario/ User´s manual 55
4. ASSEMBLING AN ARRAY
4.1TRANSPORTING THE CABINETS
AERO-38 units can be transported by using
the frontpanel dollyPL-38 or byusing thePL-48S steel
dolly which can transport a maximum of 4 AERO-38
stacked.
The AERO-218Sub can be transported on
the rear located casters. Their rectangular shape
facilitates ground stacking without the use of the
rigging hardware. The AERO-182 cabinets can be
transportedby usingthe frontpanel dollyPL-48.
4.2 PLANNING/INSPECTION
Before installing the AERO systems it is a
good idea to run a simulation using the AEROWARE
program utilizing thevenue dimensions. This way we
can determine the needs that should be met by the
rigging structures such as hoists, cranes, beams,
rigging points, etc. Besides providing weight
information, the program also provides users with
splay angle information, safety pin positions and
coveragepredictions.
It is extremely important to assure that each
and every one of the aforementioned structures is
capable of supporting a superior load than that of the
completesystem.
4.3 ASSEMBLING AN ARRAY “ONE
BY ONE”
When few units are to be used (minimum
systems recommended is 6 units) or when the dolly
platforms cannot be used due to a lack of space, the
enclosures willhave tobe hung“one byone”. Thefirst
step will be to attach the AX-AERO48 or the AXAERO38 grid structure to the hoists. The chain slings
need to be attached to the structure using the
shackles provided with the grid. Once this has been
accomplished, the grid structure can be placed in a
vertical position by lifting the rear hoist and lowering
the fronthoist so thatthe rear ofthe grid ison top and
the front of the grid at the bottom, ready to receive the
first box rolled into place by means of the PL-38 dolly
platform.
The nextstep is to attachthe first unit tothe
grid by introducing the G1A48 and G2A48 guides in
the receivingpoints of the grid structureand assuring
them with the six safety pins. The safety pins should
be inserted in the slot of the G2A48. It is very
important to make sure that the pins have been
insertedand lockedcorrectly.
Same process for AERO-182
3
Inspection is the next step after planning
and acquiring all the necessary parts needed to
elevate the systems. Allparts, including thehardware
attached to theenclosure, thesafety pins, etc. should
be thoroughly inspected before each use. Units
exhibiting deformations, cracks or any other defect
shouldbe replacedwith newunits.
It is important to establish an inspection
routine for the complete rigging system before each
event or installation as well as establishing the
maximumload specificationsof thehoists tobe used.
Rigging should be carried out by experts
familiar with the way the systems function and their
characteristics.
On occasions, it may be convenient to have
additional tie down points to impede the array from
twistingor swinging.
AERO-38
2
1
4
5
3y4
6
AX-AERO48 (AX-AERO38)
Quick release pin must be
inserted thru the slot of G2A48.
Once the first unit of the array has been
attached to the AX-AERO48 or AX-AERO38, the
assembly shouldbe liftedby wayof therear hoist until
the wheels of the PL-38 dolly platform lift off the
ground. Fromthis point on, the front hoist can be used
tolift thebox intoa horizontalposition.
Aero-38 Manual del usuario/ User´s manual 56
Lifted by way of the rear hoist
until the wheels of the PL-38
dolly platform are off the ground.
Lift with the front hoist
until the box is in a
horizontal position.
0º
Swing the G2A48 guide
into place and secure it
with the safety pin.
Once the splay angle between the first two
boxes has been determined, the front of the box can
be lifted into place. Three people will be needed to
undertake this operation, two to lift the box and one to
fitthe G1A48guide andsafety pinsinto theupper box.
Once thefirst box has beenplaced at 0º and
raised approximately 75cm (30 in) the second box of
the array can be rolled into place. Once located in
position, the G2A48 guides of the second box should
be freed and inserted in the rear located receiving
points of the suspended box and secured with the
safetypins.
Lift the box and free
the G1A48 guides.
57Aero-38 Manual del usuario/ User´s manual
Lift the box and introduce the
G1A48 guides securing them
with the safety pins.
4.4 ASSEMBLING AN ARRAY USING
THE PL-38 PLATFORM
The PL-38 platform can be used to easily
transport AERO-38 units to the assembling area. To
use thismethod of assembling and hoistingthe array,
there must be enough space to permit linking all the
boxesfrom thefront ofthe therigging hardware.
The first step will be to attach the AXAERO48 or AX-AERO38 grid and the 2 hoists. Once
this hasbeen accomplished, thegrid structure can be
placed ina verticalposition bylifting therear hoistand
lowering the fronthoist sothat therear ofthe gridis on
top and the front of the grid at the bottom, ready to
receivethe firstbox.
Rigging points
Once the boxes have been joined, the front
dolly panels can be removed. The next boxes should
be attached “one by one” using the methods
described. Finally, the array should be hoisted to the
correct height and secured with slings to avoid
swinging. This method is more time consuming than
assembling an array by the “all at once” procedure,
but isappropriate for situations due toa lack ofspace
in which to array the system. During the process, the
safety pins should be checked making sure they are
secured correctly. Once the complete array has been
lifted into place, additional slings should be attached
tosecure thearray andavoid swinging.
AERO-182 systemscan beflown oneby one
asdescribed previously!!.
The nextstep isto attach thefirst unitto the
grid by introducing the G1A48 and G2A48 guides in
the receivingpoints of the grid structureand assuring
them with the (6) safety pins. The safety pins should
be inserted in the slot of the G2A48. It is very
important to make sure that the pins have been
insertedand lockedcorrectly.
3
AERO-38
2
1
4
5
3y4
6
AX-AERO48 (AX-AERO38)
Quick release pin must be
inserted thru the slot of G2A48.
58Aero-38 Manual del usuario/ User´s manual
Once the first box is attached to the
structure, the remaining boxes should be brought to
the arrayand attachedrepeating theprevious steps(1
and 2) using G1A48 guides and safety pins per side
making sure that the pins have been inserted and
lockedcorrectly.
1
G1A48
same manner until all the array units are attached to
one another. For example, if we are assembling a six
unit array, the process will be repeated six times.
When allthe units areattached, the completearray is
readyto behoisted.
2
Proceed toattach the remaining unitsin the
Rear hoist!!
3
5
G2A48
4
The front motor will be used only to take up
slack inthe chain, all the weight should be onthe rear
hoist. When the wheels of the last enclosure are off
theground thearray canbe liftedwith bothmotors.
Rear hoist FIRST!!
The complete assembly should begin being
lifted from the rear hoist (3) so that the rear of the
enclosures come together due to their trapezoidal
shape. The front motor will be used only to take up
slack inthe chain, all the weight shouldbe on the rear
hoist. Proceed in this manner until the wheels of the
last enclosure are off the ground. From here on, the
arraycan nowbe liftedwith bothmotors.
When the rear of the enclosures come
together,the G2A48 rear guides should be positioned
(4) into the hardware of the box above, inserting (5)
the safetypins in the correct angleposition. Since the
boxesare flown,the safetypins shouldbe inthe slotof
theG2A48 guide.
6
7
Once thecomplete arrayhas been lifted into
place, additional slings should be attached to secure
thearray andavoid swinging.
As the array assembly is lifted (6 & 7), the
PL-38platforms shouldbe removed.
59Aero-38 Manual del usuario/ User´s manual
Manual del usuario/ User´s manual 60Aero-38
To lower the system, both hoists should be
used until the lowest box is about 1 meter from the
ground. From there on, only the front hoist should be
used so that the array assembly begins to lean
forward, at the same time,the PL-38 platforms should
be reattached. When the wheels of the lowest
enclosure are firmly on the ground, the array
assemblycan nowbe loweredusing therear hoist.
While the array assembly descends, the
rear of the enclosures will come together, at that
moment, the safety pins which hold the G2A48
guides in place should be removed. Once removed,
the guides should be swung back into the box they
belong to. Finally, the boxes should be totally
detached from one another by releasing the G1A48
guide.
4.5 ASSEMBLING AN ARRAY
USING THE PLATFORM PL-48S
The PL-48S platform can be used to easily
transport 3/4 units of the AERO-38; in both arc shape
orstacked ontheplatform.
The PL-48S platform has two types of
moving pieces. One of them is fixed (PL-48S_2) and
can only be swung around, the other is free (PL48S_1) andis joinedto theplatform byway ofa safety
pin. The smaller piece PL-48S_1 attaches to the front
enclosure hardware and the larger PL-48S_1 attaches
tothe back:
PL-48S_1
PL-48S_2
The PL-48S platform can be used to
transport boxes forming a vertical arc, ready to be
flownor simplystacked.
Either way,due tothe weightof theboxes, it
isrecommended thatfor thefirst time, the enclosures
be placed on the platform from a flown position. In
other words, the array should be suspended (either
oneby oneor usingthePL-48S) andthenlowered onto
thePL-48S ingroups.
MAX. 4
units
A) Cabinets splayed in arc (MAX. 4 units):
To place eight AERO-38 units on 2 PL-48S,
the first step would be to suspend them all, and then
lower the array assemblyonto theplatforms ingroups
offour.
Last cabinet of the array
Lower thearray untilthe lowestbox isabout
15cm (aprox.6 in.)above thePL-48Splatform.
Aero-38 Manual del usuario/ User´s manual
61
Release the PL-48S_2 piece by removing
the safety pins (1). Next, swing the pieces and
introduce them (2) into the rear rigging hardware of
thelowest box,securing themwith thesafety pin(3).
Turn a
the piece G2A48
few degrees to allow fixing
PL-48S_2 to the rigging system
G2A48
Quick release pin
must be inserted
in the position 0º
PL-48S_2
2
1
Once thetwo PL-48S_2 havebeen attached
to the boxes (3) using one safety pin per piece, the PL48S_1 pieces can be attached. Remove the safety
pins (4)and insertthe PL-48S_1 pieces intothe rigging
hardware (5) securing them (6)by usingtwo pinsper
piece.
3
5
6
4
With the number 5, 6,7 and 8 boxes resting
on each other, the safety pins that define the splay
angle can be removed (8) and the PL-48S_2 guides
can return to their stored position (9). It is mandatory
to remove the safety pins between boxes 3-4, but
between 4-5, and 5-6, they can be left in place with
theangle preparedfor thenext event.
1
2
3
Once the PL-48S_1 and PL-48S_2 have
been secured to thelower box, thisshould be lowered
so that the PL-48S_1 piece can be secured to the PL48Splatform (7)using thesafety pins.
7
4
8
9
8
9
5
6
8
9
7
9
8
8
62Aero-38 Manual del usuario/ User´s manual
Boxes 4-5 should be separated at the front
by removing the safety pins (10) that secure the
G1A48guides.
11
10
When the G1A48 pieces have been freed,
they should be turned (11) and stored (12) within the
corresponding box, in this case number 4, using the
mechanismincluded inthe rigginghardware.
The firstgroup of boxeshas now beenfreed
and is stacked safely on the PL-48Splatform. Tomove
the stack, slightly raise the upper group of boxes and
rollaway thelower group.
63Aero-38 Manual del usuario/ User´s manual
The next step is to roll under the remaining
boxes, an empty PL-48S and lower the boxes until
they are within close proximity of the platform. The
procedure should now be repeated, freeing the PL48S_2 pieces (13) from the platform, turning them
(14) and securing them (15) to the rear rigging
hardwareof thenumber 4box.
The last step consists of lowering the
remaining arrayso thatthe safetypins canbe inserted
(18) into the holes of the PL-48S_1 pieces and the
platform.
15
PL-48S_2
14
13
Continue lowering the systems and secure
(16) thePL-48S_1 piecesto the frontrigging points of
box3, inserting2 safetypins ineach (17).
Whenever a safety pin is inserted, it is
recommended that they be checkedto makesure that
they are correctly attached. Pull the safety pin
outward to make sure that it is in the locked position.
17
16
PL-48S_1
18
As in thecase ofthe firstgroup ofboxes, itis
not necessary toremove the safety pins securingthe
G2A48 guides which determine splay angle. They can
remain in as they are, ready for the next event. The
samegoes forthe AX-AERO48grid.
B) Stacked units (MAX. 4 units):
Besides using the PL-48S platform for
transporting and flying the systems, it can also be
used for ground stacking.
boxes, it is recommendedthat they be flownfirst and
then lowered to the platform and stacked. For
stability reasons, it is recommended that no more
than 4boxes bestacked.
used, theyshould bearranged sothat thesplay angles
do not make the platform unstable. Once the boxes
are flown, they can be lowered onto the PL-48S
platform by using the hoists to position the array so
that the
guides.
safety pins can be inserted into the G2A48
Due to the weight of the
In theevent that4 boxes are
The PL-48S_2 piece on the platform has 2
holes, the lower one offers a 0º angle between box
and platform and the upper hole offers a -1.6º angle,
meaningthat thebox isleaning forward.
64Aero-38 Manual del usuario/ User´s manual
The arrangement in the following picture is
an unstableone. The smaller thesplay angle between
cabinets, the more the stability. Obviously, the most
reliable stack in terms of stability is the one when the
splayangle betweenall ofthe cabinetsis 0º.
-1.6º
0º
6.4º
4.8º
3.2º
As mentioned above, the hole in which the
safety pin is inserted in the PL-48S piece will
determinethe splayangle ofthe bottombox, beit 0ºor
-1.6º. The following pictures will make things more
clear.
The anglebetween thebox and theplatform
will be -1.6º whenthe safetypin isinserted inthe hole
on the bottom of the backguide, and the hole ontop of
the PL-48S_2 piece. Let us go now through the
complete process of stacking the boxes after they
havebeen previouslyflown.
0º
The anglebetween thebox and theplatform
will be 0º when the safety pin is inserted in the hole
on the bottom of the back guide, and the hole on the
bottomof thePL-48S_2piece.
0º
1
2
After having rolled a PL-48S platform under
the array, the PL-48S_1 pieces (1,2 and 3) must be
detached from the platform and introduced (4) in the
frontrigging structureof thelower box.
65Aero-38 Manual del usuario/ User´s manual
Now the entire cluster can be lowered so
thePL-48S_1 piecesget intoreach ofthe platform.
Thenext stepis tofix thePL-48S_2pieces to
the rearrigging hardware of the box.In order to do so,
theplatform shouldbe raisedup(6) tillthe bottomhole
in the rigging hardware and the hole in the PL-48S_2
match together. Then the safety pins can be inserted
(7) in the holes. As has been said before, the splay
angle between the platform and the box is given by
thehole usedin thePL-48S_2 piece.
4
3
Both PL-48S_1 pieces must now be
attached (5)to thebox onthe bottom by meansof two
safetypins oneach side.
5
PL-48S_1
7
6
PL-48S_2
The hole chosen in this example, is the one
onthe bottomof thePL-48S piece,being 0ºthe angle.
At this pointthe PL-48S_1and thePL-48S_2
piecesare bothconnected tothebox. Thereis onlythe
PL-48S_1 piece left to be attached to the platform.
Move the platform upwards till the holes in the PL48S_1 piece and the holes in the platform match
together.Theninsert thesafety pins(8).
66Aero-38 Manual del usuario/ User´s manual
onthe floor.
9
Lower the cluster till the platform is resting
8
When the boxes are flown the safety pins
must beinserted in the G2A48slots. Now we want to
stack the boxes, so the next step is to release the pins
from the slots and introduce them in the G2A48 holes.
It must be done by first lowering the boxes till the
safety pins can be removed, then raise the boxes till
the holes fit together and finally insert the safety pins
again.
Fly
G2A48
Stack
G2A48
1
10
2
11
G2A48
12
The cluster must now be lowered (10) until
the safety pins (11) on the rear side of box number 4
can be removed. Once safety pins have been released
the cluster must be raised or lowered (13) until the
hole in the G2A48 piece matches with the hole that
determinesthe anglechosen bythe user.
3
4
67Aero-38 Manual del usuario/ User´s manual
13
4.8º
14
Safety pinscan nowbe inserted (14).In this
example, the set up angle between boxes 3 and 4 is
4.8º.
15
16
17
19
It is important to check that pins cannot be
removed by pulling outward and that they have been
inserted in the G2A48 hole instead of the guide slot.
Otherwise the box would not remain in the expected
angle.
The procedure is the same for the next
boxes. The cluster must be lowered again (15) until
the safety pins of box 3 are loose. Remove the pins
(16) so the G2A48 rear guides return to their stored
position (17).Insert the safetypins into theholes (18)
that determine the angle previously selected for
stacking. Repeat the same procedure with box
number 1: lower the cluster (19), free the rear guides
G2A48(20 &21) andselect theangle.
20
21
18
3.2º
4.8º
68Aero-38 Manual del usuario/ User´s manual
In order to set up theangle between boxes1
and 2you mustpull up (23)from thegrid until thehole
in the G2A48 piece fits with the hole that determines
thestacking angle.Then insertthe safetypins (24).
23
24
1.6º
3.2º
4.8º
At this point the boxes are safely stacked.
Finally, the AX-AERO48 grid should be detached from
boxnumber 1.
69Aero-38 Manual del usuario/ User´s manual
4.6 ASSEMBLING A CLUSTER
USING THE PL-48S PLATFORM
AERO-38 boxescan be easily transportedin
groups of four when stacked on the PL-48S platform.
This arrangement is also useful and saves time when
setting up a cluster. Let us see what would the
procedurebe whenflying asix boxcluster.
After the AX-AERO48 grid has been
attached to the motors, it should be lifted at about
1.8m (5.5 ft) from the ground. Now the platform
containing thefirst three stackedAERO-38 boxes can
berolled underthe grid.
In order to attach the box on top to the grid,
front guides G1A48 and rear guides G2A48 must be
swung (2) and inserted into the AX-AERO48 grid
receiving points.Once this hasbeen done, detachthe
6 safety pins from their receptacles and secure the
boxto thegrid.
2
2
Once G1A48, G2A48 of the topcabinet have
been secured (3) to the grid, rotate
( ), fit them into the upper box rigging hardware and
4
securethem withthe safetypins ( )
Whenever a safety pin is inserted, it is
always advisable to make sure it has been correctly
lockedby pullingoutward.
the G2A48 pieces
5 . Seenext page.
70Aero-38 Manual del usuario/ User´s manual
3
are 0.8ºbetween the first and second boxes,and 1.6º
The angles that can be seen in the example
between the second and the third boxes. The cluster
can now be lifted by the two motors, and the PL-48S
3
platformdetached.
The first stepto detach the PL-48S platform
from the bottom box is to release (6) the safety pins
which secure thePL-48S_1 piece to theplatform and
4
the PL-48S_2 piece to the box. After raising the
cluster a bit, the safety pins which connect the PL48S_1 piece to the box can be released (8) also. PL48S_1 piece should now be reattached again to the
platform.
4
Now that the first three units have been
rigged, the entire clustershould be liftedup so thereis
roomenough toroll anotherstack underthe cluster.
4
Select the angle between cabinets
introducing (5) the pins in the holes of the rigging
systemthrough theslot ofG2A48.
0.8º
5
0.8º
5
1.6º
5
6
PL-48S_2
7
8
PL-48S_1
6
71Aero-38 Manual del usuario/ User´s manual
Place the remaining group of boxes under
thecluster,then lowerthe clusteruntilboth frontsides
are in close proximity. G1A48 front guides (9) of the
first boxon the platform cannow be swung and leftin
the upright position,ready tobe insertedinto the front
rigginghardware ofthe nextbox.
Lower the cluster until the G1A48 front
guides fit into the rigging hardwareof the bottom box
andinsert thetwo safetypins (10)per side.
9
10
72Aero-38 Manual del usuario/ User´s manual
With the front guides correctly secured,
swing the G2A48 (11) rear guides belonging to the
box on top of the second group and lower the grid till
the guides fit into the rigging hardware of the next
box. Set the angle between both boxes by inserting
thesafety pinsin thecorrect hole.
From here on, the process is similar to the
previously described. Detach the safety pins from
their receptacleson thesides ofthe boxes,swing (12)
the G2A48 rear guides, place them into the rigging
hardware of the next box and insert (13) the safety
pins in the holes which define the angle previously
selected.
0.8º
0.8º
11
13
13
13
1.6º
2.4º
3.2º
4.8º
6.4º
12
12
12
73Aero-38 Manual del usuario/ User´s manual
5. SUBWOOFER UNITS
Externally amplified systems:
An AERO-38 unit can reproduce frequencies as low as 60Hz. is the D A S recommended
subwoofer unitto beused alongAERO-38 whensubwoofers haveto beground stacked.When subwoofers be
AERO 182
flown, isthe D A S recommended subwoofer.
-...
It isrecommended that the , sothat the bandranging from 60Hzto
subs' Low Pass Filter be set at 80Hz
AERO-218Sub
...
are to
80Hz is reproduced by both the AERO-38 and the subwoofer. The phase of the subs should match that of the Lows
aroundthe 60Hzto 80Hzregion.
LINK
LINK
RECOMMENDED AMPLIFIERS
CH-A CH-B
±1LF1
2 x 1400W@4ohm
±1LF1
±4HF
±3MF
2 x [750-1200]W@4ohm
±2LF2
2 x [750-1200]W@4ohm
±1LF1
2 x [750-1200]W@4ohm
2 x 750W@4ohm
±4HF
±3MF
±2LF2
±1LF1
DSP-3VS
80Hz
DSP-1Sub
LINE IN
Self powered systems:
High Pass Filter in an AERO-38A system is set at 60Hz. is the D A S recommended
subwoofer unitto be used alongAERO-38A when subwoofershave to be groundstacked. When subwoofers
be flown, is the D A S recommended subwoofer.
AERO 182A
-...
signaltreatment inthe amplifier, includingcut offfrequencies,limiters settings,etc.!!
Note: Dueto the frequencyoverlap in the regionbetween 60Hz and 80Hz,an external processor
(DSP-1Sub) will always be necessary in order to add the necessary delay so the phases of the AERO-38A and the
subwoofersmatch.
AERO-218A
...
are to
All self powered units incorporate the necessary
Manual del usuario/ User´s manual 74Aero-38
6. MAINTENANCE
The following is a discussion on how to
access each transducer for maintenance or repair. In
order to access the amplifier please refer to 3.11
sectionin thisuser's guide.
In order to access de 12” speakers, you
mustfirst removethe frontgrill.
Once the wingshave beenremoved youcan
easilyaccess the10LMN16 speakers.
In orderto access thehigh frequency driver,
two trapezoidal shape aluminium plates have been
disposed onthe topand bottom sides of the box.Both
plates can be removed, clearing the access to the
driverfrom bothsides.
After the front grill has been removed
accessto the12GNC speakersis cleared.
In order to access de 10” speakers, you
first
must remove thefront grill,and then unscrew the
polyurethane fromthe box.
hornpieces
6x(M5x25 DIN 7985) 3 screws per piece
x6
8x(M5x20 DIN 965) 4 per piece
First removethe screwsfrom thealuminium
plates:
11 x (M5x20 DIN 965) per plate
When the plates have been removed, the
speaker's wires must be disconnected from the
driver'sterminals.
x4
A number 10 metric spanner must be used
to get the M6 nuts that fix the ND-10 driver to the
SERPIS-38.
Manual del usuario/ User´s manual 75Aero-38
+3-1+1 -3 +4-4 +2 -2
Internal conne ions in the AERO-38 system.
ct
In order to access the speakersin theAERO
182 and AERO 218Sub subwoofer units, first the grill
must be removed from the box. Being AERO 182 and
-
AERO 218Sub double 18” speakers, both speakers
-
-
are connected in parallel mode resulting in a total
impedance of 4Ohm. To access the amplifier for
service it must be removed from the back side of the
box.
-
All four nuts must get undone so
the driver canbe taken outfrom thebox throughany of
thetwo trapezoidalshape holes.
NOTE: In the AERO systems, each way can be easily
identifiedby thewire colour:
LOWFREQ 1 +RED -BLACK
LOWFREQ 2 +RED -BLACK
MIDFREQ +BLUE -BLACK
HIGHFREQ +GREEN -BLACK
±1
±2
±3
±4
Manual del usuario/ User´s manual 76Aero-38
7. SPECIFICATIONS
SPECIFICATIONS
Model
Nominal LF Amplifier Power
Nominal MF Amplifier Power
Nominal HF Amplifier Power
Input Type
Input Impedance
Sensitivity
Frequency Range (-10 dB)
Horizontal Coverage (-6dB)
Vertical Coverage
Rated Maximum Peak SPL at 1 m
Transducers/Replacement Parts
Enclosure Geometry
Enclosure Material
Color/Finish
Rigging System Splay Angles
Safety Factor
Connectors
AC Power Requirements
Dimensions (H x W x D)
Weight
Accessories
Powered Systems
Aero 38A
1000 W (Class D)
500 W (Class D)
500 W (Class D)
Balanced Differential Line
Line: 20 kohms
Line: 1.95 V (+8 dBu)
60 Hz-18 kHz
90º Nominal
Splay Dependent
137 dB
LF: 2 x 12GNC/GM 12G
MF: 2 x 10LN16/GM LN16
HF:1xND-10/GMK-8
Trapezoidal 5º
Birch Plywood
Black Paint
0º to 3.2º in 0.8º increments
3.2º to 9.6º in 1.6º increments
Maximum 20 cabinets @ 10:1
INPUT: Female XLR
LOOP THRU: Male XLR
AC INPUT: PowerCon NAC 3 FCA
AC OUTPUT: Powercon NAC 3 DFCB
115 V, 50 Hz/60 Hz, 230 V, 50 Hz/60 Hz
31.6 x 140 x 60 cm
12.4 x 55 x 23.6 in
80 kg (176 lb)
AX-Aero38 Rigging Grid, AX-Aero48 Rigging Grid,
AX-Combo Rigging Adapter, PL-38 Dolly Panel
(included), PL-48S Steel Stacking Dolly
SPECIFICATIONS
Model
Frequency Range (-10 dB)
Horizontal Coverage (-6dB)
Vertical Coverage
RMS (Average) Power Handling
On-Axis Sensitivity 1 W / 1 m
Rated Maximum Peak SPL at 1 m
Transducers/Replacement Parts
Nominal Impedance
Recommended Controller
Recommended Amplifier Power
(4 units Aero 38)
Enclosure Geometry
Enclosure Material
Color/Finish
Rigging System
Safety Factor
Connectors
Dimensions (H x W x D)
Weight
Accessories
Non-Powered Systems
Aero 38
60 Hz-18 kHz
90º Nominal
Splay Dependent
LF: 2 x 600 W, MF: 600 W, HF: 200 W
LF: 98 dB SPL, MF: 103 dB SPL, HF: 110 dB SPL
LF: 135 dB, MF: 137 dB, HF: 139 dB
LF: 2 x 12GNC/GM 12G
MF: 2 x 10LN16/GM LN16
HF:1xND-10/GMK-8
LF: 8+8 ohms, MF: 8 ohms, HF: 16 ohms
DSP-3VS
LF1: 2 x [750-1200] W @ 4 ohms
LF2: 2 x [750-1200] W @ 4 ohms
MF: 2 x [750-1200] W @ 4 ohms
HF:2x750W@4ohms
Trapezoidal 5º
Birch Plywood
Black Paint
0º to 3.2º in 0.8º increments
3.2º to 9.6º in 1.6º increments
Maximum 20 cabinets @ 10:1
2 x NL8 wired LF1±1, LF2±2, MF±3, HF±4
31.6 x 140 x 60 cm
12.4 x 55 x 23.6 in
70 kg (154 lb)
AX-Aero38 Rigging Grid, AX-Aero48 Rigging Grid,
AX-Combo Rigging Adapter, PL-38 Dolly Panel (included),
PL-48S Steel Stacking Dolly
SPECIFICATIONS
Model
Nominal LF Amplifier Power
Input Type
Input Impedance
Sensitivity
Frequency Range (-10 dB)
Rated Maximum Peak SPL at 1 m
Transducers/Replacement Parts
Enclosure Geometry
Enclosure Material
Color/Finish
Rigging System
Safety Factor
Connectors
AC Power Requirements
Dimensions (H x W x D)
Weight
Accessories
Aero 182A
1000 W (Class D)
Balanced Differential Line
Line: 25 kohms
Line: 1.95 V (+8 dBu)
28 Hz-85 Hz
137 dB
LF: 2 x 18GN/GM 18G
Rectangular
Birch Plywood
Black Paint
Integrated in box design
Maximum 16 cabinets @ 10:1
INPUT: Female XLR
LOOP THRU: Male XLR
AC INPUT: PowerCon NAC 3 FCA
AC OUTPUT: Powercon NAC 3 DFCB
115 V, 50 Hz/60 Hz
230 V, 50 Hz/60 Hz
47.5 x 140 x 60 cm
18.7x 55 x 23.6 in
99 kg (218 lb)
AX-Aero38 Rigging Grid
AX-Aero48 Rigging Grid
PL-48 Dolly Panel (included)
SPECIFICATIONS
Model
Frequency Range (-10 dB)
RMS (Average) Power Handling
On-Axis Sensitivity 1 W / 1 m
Rated Maximum Peak SPL at 1 m
Transducers/Replacement Parts
Nominal Impedance
Recommended Controller
Recommended Amplifier Power
(2 units Aero 182)
Enclosure Geometry
Enclosure Material
Color/Finish
Rigging System
Safety Factor
Connectors
Dimensions (H x W x D)
Weight
Accessories
Non-Powered SystemsPowered Systems
Aero 182
28 Hz-85 Hz
1400 W
101 dB SPL
138 dB
LF: 2 x 18GN/GM 18G
4 ohms
DSP-1Sub
LF: 2 x 1400 W @ 4 ohms
Rectangular
Birch Plywood
Black Paint
Integrated in box design
Maximum 16 cabinets @ 10:1
2xNL8wiredLF±1
47.5 x 140 x 60 cm
18.7x 55 x 23.6 in
91 kg (201 lb)
AX-Aero38 Rigging Grid
AX-Aero48 Rigging Grid
PL-48 Dolly Panel (included)
Manual del usuario/ User´s manual 77Aero-38
SPECIFICATIONS
Model
Aero 218A
SPECIFICATIONS
Model
Non-Powered SystemsPowered Systems
Aero 218 Sub
Nominal LF Amplifier Power
Input Type
Input Impedance
Sensitivity
Frequency Range (-10 dB)
Rated Maximum Peak SPL at 1 m
Transducers/Replacement Parts
Enclosure Geometry
Enclosure Material
Color/Finish
Rigging System
Connectors
AC Power Requirements
Dimensions (H x W x D)
Weight
2 x 1000 W (Class D)
Balanced Differential Line
Line: 25 kohms
Line: 1.95 V (+8 dBu)
28 Hz-85 Hz
140 dB
LF: 2 x 18GN/GM 18G
Rectangular
Birch Plywood
Black Paint
Ground Stack Only
INPUT: Female XLR
LOOP THRU: Male XLR
AC INPUT: PowerCon NAC 3 FCA
AC OUTPUT: Powercon NAC 3 DFCB
115V, 50 Hz/60 Hz
230V, 50 Hz/60 Hz
101 x 68 x 82.5 cm
39.8 x 26.8 x 32.5 in
98 kg (215.6 lb)
Frequency Range (-10 dB)
RMS (Average) Power Handling
On-Axis Sensitivity 1 W / 1 m
Rated Maximum Peak SPL at 1 m
Transducers/Replacement Parts
Nominal Impedance
Recommended Controller
Recommended Amplifier Power
(2 units Aero 218 Sub)
Enclosure Geometry
Enclosure Material
Color/Finish
Rigging System
Connectors
Dimensions (H x W x D)
Weight
28 Hz-85 Hz
1400 W
103 dB SPL
140 dB
LF: 2 x 18GN/GM 18G
4 ohms
DSP-1Sub
LF: 2 x 1400 W @ 4 ohms
Rectangular
Birch Plywood
Black Paint
Ground Stack Only
2xNL8wiredLF±1
101 x 68 x 82.5 cm
39.8 x 26.8 x 32.5 in
82 kg (181 lb)
Manual del usuario/ User´s manual 78Aero-38
8. SIGNAL PROCESSING
8.2 LIMITER SETTINGS
The use of the DSP-3VS digital processor is
highly recommended when running the AERO-38
sound system, and the use of the DSP-1Sub when
running the AERO-218Sub (AERO-182). Whenever
another loudspeaker management system is going to
be used, it should be configured with the parameters
provided by the manufacturer. Not doing so may
damage the system´s speaker components and
affectthe soundquality.
The DSP-3VS digital processor is a threeway crossover with gain controls that offer +/- 6dB
variation per way. The processor has two inputs and
six outputs with level indication and muting for each
of the outputs. The digital processor includes fourth
order filters and parametric equalizers. The user
adjustablelimiters areaccessible fromthe frontpanel.
The DSP-3VS includes 10 presets that can
be selectedfrom the front panel. Eachpreset memory
recalls specific operating parameters for a specific
DASspeaker systems.The selectedprogram isvisible
onthe LCDscreen locatedon thefront panel.
8.1 DSP-3VS INSTRUCTIONS
The following formulas can be used to establish the
limiter voltage:
AmplifierData:
rms rms
V=P *Z
G=
rms
V/S
dB rms
G =20log(V /S)
Where P is the amplifier RMS power in
rms
watts
Zis theload impedancein ohms
Gis theamplifier gain
Sis theamplifier sensitivityin volts
dB
G is theamplifier gainin dB
Limitersettings:
dd
V= P *Z
Limitlevel (v)=V /G
d
Limitlevel (dBu)=20log[limitlevel (v)/0.775]
Where P is the maximum power to be
d
deliveredin watts
To selecta program,turn the rotary mini-DIP
switch onthe frontpanel labelled“Presets”. The name
of the recalled preset will appear on the LCD screen.
The firsttime theDSP-3VSis connected,the number1
program for the AERO-48 system will appear on the
frontpanel screen.
To select the limit levels for each of the
ways, turn the rotary mini-DIP switches on the front
panel labelled “Limiters”. The limit level expressed in
Vrmsand dBuappears onthe frontpanel screen.
The “Settings” button allows the user to
check the saved limit levels. Thelimit levelsappear on
the screen and after 5 seconds, the preset program
returnsto thescreen.
Thelimit levelsto beenteredshould beequal
to or lower than the sensitivity of the amplifiers used.
Amplifier manuals provide the sensitivity at 8 Ohms
and 4 Ohms. Takeinto account the load impedanceat
which the amplifiers will be working when adjusting
thelimit levels.
When usingamplifiers with a greater output
power than that recommended by the speaker
manufacturer, the limit levels should be adjusted so
notto exceedthe powercapabilities ofthe speakers.
Example:
Amplifier
Prms
GdB
G
S
750W@4ohm
1.34 volts@4ohm
500W@8ohm
32dB
40 X
1.58 volts@8ohm
In this example we are going to feed the
highs of AERO-38 with one amplifier channel.
two
Total impedanceof 2ND-10 highfrequency drivers,as
wired in the AERO-38, is 8 Ohms. The maximum rms
power to be delivered to the highs, or Pd, should be
400W(400/2=200W perdriver).
P =400W@8ohm
d
V = 400*8=56.57v
d
Limit level (v)=V /G=56.57/40=1.41
d
Limit level (dBu)=20log(1.44/0.775)=5.2
Important Notice: The programs stored in
the memories of the DSP-3VS have been designed to
provide optimum performance and balance between
the different ways. In order to maintain this balance,
equalgain amplifiersshould beused.
Anotherformula tocalculate thelimiters:
Limit level (dBu)=20log(Vd/0.775)-GdB
79Aero-38 Manual del usuario/ User´s manual
CONFIGURATION 1
aero-38 (external amplification system)
16x -38+8x -182aero aero
4 x ero-38aaero-38
LINK
RECOMMENDED AMPLIFIERS
CH-A CH-B
±4HF
±3MF
±2LF2
±1LF1
2 x 750W@4ohm
2 x [750-1200]W@4ohm
2 x [750-1200]W@4ohm
2 x [750-1200]W@4ohm
±4HF
±3MF
±2LF2
±1LF1
LINE IN
OPERATING PARAMETERS
AMPLIFIERS WITH EQUAL GAIN USED
LINK
GAIN
POLARITY
LOW-CUT
HIGH-CUT
EQ.1 FREQ.
EQ.1 LEVEL
EQ.1 BW.
EQ.2 FREQ.
EQ.2 LEVEL
EQ.2 BW.
EQ.3 FREQ.
EQ.3 LEVEL
EQ.3 BW.
NOTE: 0.7 oct Q=2
LOW
0dB
Normal
50 Hz LR-24
159 Hz LR-24
0.3 oct Q=4.8
0.4 oct Q=3.6
0.6 oct Q=2.4
159 Hz LR-24
757 Hz LR-24
60 Hz
+3 dB
0.3 oct.
125 Hz
-6 dB
0.4 oct.
MID HIGH
-2 dB
Normal
757 Hz LR-24
450 Hz
-6 dB
0.4 oct.
12.5 kHz
0.9 oct Q=1.6
-9 dB
Normal
1410 Hz
-7 dB
0.9 oct.
10 kHz
+7 dB
0.7 oct.
+11 dB
0.6 oct.
DSP-3VS
DSP-1Sub
2x ero-182aaero-182
-
RECOMMENDED AMPLIFIERS
CH-A CH-B
±1LF1 ±1LF1
GAIN
DELAY
POLARITY
LOW-CUT
HIGH-CUT
EQ. FREQ.
EQ. LEVEL
EQ. BW.
2 x 1400W@4ohm
SUB
+3 dB
Position dependent
Normal
23 Hz LR-24
85 Hz LR-24
36 Hz
+10 dB
0.4 oct. (Q=3.6)
Manual del usuario/ User´s manual 80Aero-38
CONFIGURATION 2
aero-38 (external amplification system)
16x -38+8x -218subaero aero
4 x ero-38aaero-38
LINK
RECOMMENDED AMPLIFIERS
CH-A CH-B
±4HF
±3MF
±2LF2
±1LF1
2 x 750W@4ohm
2 x [750-1200]W@4ohm
2 x [750-1200]W@4ohm
2 x [750-1200]W@4ohm
±4HF
±3MF
±2LF2
±1LF1
OPERATING PARAMETERS
AMPLIFIERS WITH EQUAL GAIN USED
LINK
LOW
GAIN
POLARITY
LOW-CUT
HIGH-CUT
EQ.1 FREQ.
EQ.1 LEVEL
EQ.1 BW.
EQ.2 FREQ.
EQ.2 LEVEL
EQ.2 BW.
EQ.3 FREQ.
EQ.3 LEVEL
EQ.3 BW.
NOTE: 0.7 oct Q=2
0dB
Normal
50 Hz LR-24
159 Hz LR-24
0.3 oct Q=4.8
0.4 oct Q=3.6
0.6 oct Q=2.4
159 Hz LR-24
757 Hz LR-24
60 Hz
+3 dB
0.3 oct.
125 Hz
-6 dB
0.4 oct.
LINE IN
MID HIGH
-2 dB
Normal
757 Hz LR-24
450 Hz
-6 dB
0.4 oct.
12.5 kHz
0.9 oct Q=1.6
-9 dB
Normal
1410 Hz
-7 dB
0.9 oct.
10 kHz
+7 dB
0.7 oct.
+11 dB
0.6 oct.
DSP-3VS
DSP-1Sub
2x ero-218a SUBaero-218SUB
RECOMMENDED AMPLIFIERS
-
CH-A CH-B
±1LF1
2 x 1400W@4ohm
GAIN
DELAY
POLARITY
LOW-CUT
HIGH-CUT
EQ. FREQ.
EQ. LEVEL
EQ. BW.
±1LF1
SUB
+3 dB
Position dependent
Normal
23 Hz LR-24
85 Hz LR-24
36 Hz
+10 dB
0.4 oct. (Q=3.6)
Manual del usuario/ User´s manual 81Aero-38
CONFIGURATION 1
aero-38A (self powered system)
8x -38a+4x -182aaero aero
CONFIGURATION 2
aero-38A (self powered system)
16x -38a+4x -182aaero aero
DSP-1Sub
4 x ero-38Aaaero-38A
power LINK
WARNING!
AC CONNECTIONS
115V max. 3 units in parallel
230V max. 6 units in parallel
2x ero-182Aaaero-182A
LINK
LINK
POWER
LINK
INPUTPOWER
POWER
Manual del usuario/ User´s manual 82Aero-38
LINK
INPUT
CONFIGURATION 3
aero-38A (self powered system)
16x -38a+8x -218aaero aero
4 x ero-38Aaaero-38A
power LINK
power LINK
WARNING!
AC CONNECTIONS
LINK
LINK
LINK
INPUTPOWER
LINK
LINK
LINK
INPUTPOWER
2x ero-218Aaaero-218A
POWER POWER
LINK
POWER POWER
115V max. 3 units in parallel
230V max. 6 units in parallel
LINK
INPUT
Manual del usuario/ User´s manual 83Aero-38
APPENDIX LINE CONNECTION: UN-BALANCED AND BALANCED..
Thereare twobasic waysto transportan audiosignal withmicrophoneor linelevel:
Un-balanced line: Utilizing a two-conductor cable, it transports the signal as the voltage between them.
Electro-magnetic interference can get added to the signal as undesired noise. Connectors that carry un-balanced
signals have two pins, such as RCA ( ) and ¼” (6.35 mm, often referred to as ) mono. 3-pin connector
suchas XLR( )may alsocarry un-balancedsignals ifone ofthe pinsisunused.
noise and is the ground conductor. The other two have the same voltage with respect to the groundconductor but
with opposite signs. The noise that cannot be rejectedby the shieldaffects both signalconductors in the same way.
At the device’s input the two signals get summed with opposite sign, so that noise is cancelled out while the
programme signal doubles in level. Most professional audio devices use balanced inputs and outputs. Connectors
thatcan carrybalanced signalhave threepins, suchas XLR( ) and¼” (6.35mm) stereo.
processor or amplifier inputs. The connectorson the left-hand sidecome from a signalsource, and the oneson the
right hand side go to the inputs of the processor or amplifier. Note that on the un-balanced connectors on the lefthand side, two terminals are joined insidethe connector.If hum occurs with balancedto balanced connections, try
disconnecting the sleeve (ground) on the input connector. Note that the illustrations show what should be
connected towhat, butthat pinlocations onan actualXLR connectorare different.Also, pin2 hotis assumed on XLR
connectors.
Cannon
Balanced line: Utilizing a three-conductor cable, one of them acts as a shield against electro-magnetic
The graphs that follow show the recommended connection with different types of connectors to balanced
Phono jack
Cannon
Manual del usuario/ User´s manual 84Aero-38
D.A.S. AUDIO, S.A. C/. Islas Baleares, 24 - 46988 Fuente del Jarro - Valencia, SPAIN
Tel. Intl. +34 96 134 0860 - Fax. Intl. +34 96 134 0607
D.A.S. AUDIO of AMERICA, Inc. Sunset Palmetto Park - 6816 NW 77th Court - Miami, FL 33166 U.S.A.
TOLL FREE: 1-888DAS4USA Tel. 305 436 0521
D.A.S. AUDIO DEUTSCHLAND GmbH Frankfurter Straße 17 - 64546 Mörfelden-Walldorf
Fon. +49 06105-967610 Fax 06105-96761
www.dasaudio.com
US/AERO-03
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