Pequod Ostro 11.1 User manual

Pequod Acoustics Srl.
Via del Madonnone 25, Florence, Italy
www.pequodacoustics.com
[email protected]
Ostro 11.1
Two way passive coaxial
User guide

Pequod Acoustics Srl.
Via del Madonnone 25, Florence, Italy
www.pequodacoustics.com
[email protected]
Index
1 Technical Specications
2 Unpacking and Checking
3 Cables and Set-up
4 Installation and System Design
5 Accessories
6 Maintenence and Surface Protection
7 Warranty
8 Authenticity
Ostro 11.1
Two way passive coaxial

Pequod Acoustics Srl.
Via del Madonnone 25, Florence, Italy
www.pequodacoustics.com
[email protected]
1 Technical Specications
Ostro 11.1 is a passive loudspeaker with
two-channel, direct, coaxial emission. A
professional HI-PRO speaker designed
to seamlessly integrate with dedicated
transducers, it is built from highly resi-
stant composite materials for elevated
sound sensitivity, dynamics, and de-
nition. Wide-angle coverage of a highly
controlled sound eld, and the ability to
reach high levels without perceptible di-
stortion. The system is characterized by
a high-end audio quality and can reach
elevated sound pressures. This is clas-
sied as a full-range system, in that it
does not need a dedicated subwoofer
if used in limited spaces, where the-
re would often be insucient area for
a sub. Perfect for private or enclosed
areas as the rst choice, or as an en-
try-level DJ monitor and eventually ma-
tched to a subwoofer (our reference as
DJ monitor is Pequod Kona System). It
can be used as a high-quality Satellite
in combination with subwoofers such
as Ovoid18. In this case, a DSP must
be used to match the diver. The Ostro is
driven by a special external crossover of
extremely high quality and technologi-
cal complexity, built to high-end specs.
This can greatly surpass the quality of
sound available through the more com-
mon DSP technology or cheap, o the
shelf crossovers. Sound dispersion is
very precise and regular, allowing it to
be used in smaller spaces where sound
quality is a high priority. This allows for
excellent dynamics which distinguish
the entire system from the rst listen.
The coaxial speaker component repre-
sents world class quality, without com-
mercial or technological compromises.
Thanks to its elevated sensitivity, the
system requires limited amplication
power. A Full Fat audio FFA 2004 is the
recommended amplier for 4 Ostro.
TYPE
FREQUENCY
RESPONSE
TOTAL
SENSITIVITY
LOW - MEDIUM
FREQUENCIES
HIGH
FREQUENCIES
NOMINAL
IMPEDANCE
POWER
HANDLING
MANAGE
SPL MAX
RECOMMENDED
AMPLIFIER
DISPERSION
CONSTRUCTION
MATERIALS
FINISH
Two way passive coaxial
50 Hz - 18 KHz (-3dB)
93 dB 1W/1m with passive crossover
10” woofer @ 8 Ohm 500W continuo-
us power handling , sensitivity 95 dB
1W/1m
HF compression driver with titanium
diaphragm with voice coil diameter
65mm, @ 8 Ohm 160W continuous
power handling , sensitivity 104dB
1W/1m
4 Ohm with 2 way passive crossover
450W 4 Ohm with amplier @ 2 Ohm
stable
2 Ch amplier to a couple of Ostro
loudspeakers (passive crossover provi-
ded, for each Ostro) .If very high output
is needed we recommend to use a DSP
: High-pass lter @50Hz, 12 dB/oct. or
higher slope Otherwise as Satellite with
subwoofer : Amplier+DSP to match to
subwoofer. High-pass lter @90Hz, 12
dB/oct. or higher slope
119 dB with 450 W
A Full Fat audio FFA 2004 is the recom-
mended amplier for 4 Ostro.
70 deg conical
Fiber-reinforced composite, stainless
steel
all ral color and texture on order
Ostro is usually sold with this grid
made of stainless steel to protect
the 10” coax ,as standard
1x Neutrik NL4FX or custom
(W) 480mm (H) 480mm (D) 450mm
(W) 18,8inch (H) 18,8 inch (D)
17,7inch
16Kg (36lb)
USER GUIDE
PROTECTIVE
GRILLES
CONNECTORS
DIMENSIONS
(without support
or suspension)
WEIGHT

2: Unboxing
The Ostro, like every other Pequod product, is
built with high standards of control and quality.
At the end of the production process and be-
fore packaging, each system is tested: acousti-
cally measured and recorded in our company
database. For each Ostro serial number, we
have the related test les recorded in the archi-
ve. Before being packed in its box we complete
an inspection of surfaces and structures. Units
are packed into wooden crates or heavy card-
board boxes with internal foam padding before
shipping.
Extraction from box:
The Ostro weighs 16 kg each, and is taken from
the box simply following the steps shown here.
Keep the packaging for further storage or tran-
sporation, unless units are to be permanently
installed.
Pequod Acoustics Srl.
Via del Madonnone 25, Florence, Italy
www.pequodacoustics.com
[email protected]
1: Carefully cut tape and
open carboard box
2: Remove packing materials
and save for re-use
3: lift speaker body with
both hands when ready
USER GUIDE
450mm (17,7 inch ) 480mm (18,8 inch )
480mm (18,8 inch )

Pequod Acoustics Srl.
Via del Madonnone 25, Florence, Italy
www.pequodacoustics.com
[email protected]
3 Wiring and Settings
Ostro has an input made with a female NL4 connector. Through a dedicated cable and terminated
with 2 male NL4Fc connectors it is connected to its passive crossover, contained in a box of 3 types
of your choice (also equipped with a female NL4 output for connection with the aforementioned
dedicated cable): standard box (cod STBOXOS), metal rack box (cod RBOXOS), or weatherproof
box in composite (cod WPBOXOS).
The connectors on Ostro are standard NL4 female, or water proof on request. In case of custom
realization by the installer of the connection cables, we recommend specifying installation-grade
Low Smoke Zero Halogen (LSZH) cables for permanent installations. The cables should use Oxy-
gen Free Copper (OFC) of grade C11000 or above. For distances of over 15 meters between Kona
and crossover box we recommend increasing the section of the cable poles to 4 sq mm, to avoid
excessive emission level losses. For lengths of less than 15 m, you can use 2-pole cables, each
with a section of 2.5 sq mm.
Connection diagrams:
A) Cable between Ostro and xover (not supplied): 4-pole cable
(section 2.5 sq mm minimum per pole up to cable length of 15 m, in addition we recommend swi-
tching to 4 sq mm per pole), terminated with 2 male Nl4Fc connectors (+ 1 / -1 connected, + 2 / -2
connected). Connection of the cable poles between the 2 connectors (A and B), according to the
following diagram, where each wire connects corresponding numbers on connector A and con-
nector B, used to terminate the cable itself. Then connect to the Ostro input, which has an NL4fc
female connector, standard or WP on request.
USER GUIDE
A B

Pequod Acoustics Srl.
Via del Madonnone 25, Florence, Italy
www.pequodacoustics.com
[email protected]
B) Cable between xover and amp
(not supplied):
2-pole cable (2.5 mmq minimum section per pole
up to 15 m cable length, in addition we recom-
mend switching to 4 mmq per pole), terminated
with Nl4Fc male connector ( + 1 / -1 connected
and corresponding to +1 red and -1 black on the
amplier, + 2 / -2 empty) to connect to the xover
box, which has a female NL4fc input connector.
NL4 Female
(OUT)
Xover Box
NL4 Female
(IN)
To POWER
AMPLIFIER
NL4FC
(+1 -1 +2 -2 )
NL4FC
(+1 -1 +2 -2 )
NL4FC
(+1 -1 )
4p
DSP general settings:
1 ) Stand alone : Just if very high output is ne-
eded we recommend to use a DSP : High-pass
lter @50Hz, 12 dB/oct. or higher slope
2)Ostro as Satellite with subwoofer :
Amplier+DSP to match to subwoofer.
Ostro : High-pass lter @90Hz, 12 dB/oct. or hi-
gher slope
Sub:
Band pass:
High-pass lter @20Hz, 12 dB/oct. or higher slo-
pe Low pass lter @90Hz, 12 dB/oct. or higher
slope
Gain and Time Alignment : it depends on Subwo-
ofer utilized
USER GUIDE
Choice of Box Style:
1: Standard Box: Cod STBOXOS
( x1 crossover inside)
2: Rack Box: Cod RBOXOS :
( x2 crossover inside)
3:Waterproof Box: Cod WPBOXOS
: (x1 crossover inside)

Pequod Acoustics Srl.
Via del Madonnone 25, Florence, Italy
www.pequodacoustics.com
[email protected]
Ostro Ostro
SubwooferSubwoofer
4 Installation and system design
For private or enclosed areas as rst choice, or as entry level DJ monitor and eventually matched
to a subwoofer (our reference as DJ monitor is Pequod Kona Storm System). Or as a Satellite with
subwoofer for small dance oor or for a small audience of a live event. Also used as a ller for me-
dium-high frequencies in areas that require such sound reinforcement.
For on stage installation as an entry level DJ monitor, the reference heights and distances are vi-
sible in the diagram. The Ostros must be oriented towards the DJ’s head, with a minimum recom-
mended distance of 1.5 m. In height, the ideal central outgoing axis must be approximately 1.7 m
from the ground. Possible presence of the subwoofer.
USER GUIDE
1) Entry level DJ Monitor system
1.5 m 1.5 m
1.7 m

Pequod Acoustics Srl.
Via del Madonnone 25, Florence, Italy
www.pequodacoustics.com
[email protected]
2) Ostro facing an audience:
For the installation of Ostro facing an audience, it is necessary to take into account that optimal
acoustic coverage is obtained by lifting the Ostro 2/4 m from the ground on the vertical plane, til-
ting them towards the public, so that the ideal central outgoing axis is oriented in an area located
between 1/2 and 2/3 of the depth of the area to be soundtracked (dance oor or audience).
On the horizontal plane it is also necessary to orientate the ideal axis coming out of the Ostro in an
area that is placed at about 2/3 of the depth of the area to be soundtracked, on the center line of
the area itself.
USER GUIDE
Subwoofer
Subwoofer Subwoofer
Stage
2 Ostro (+ possible subwoofer):

Pequod Acoustics Srl.
Via del Madonnone 25, Florence, Italy
www.pequodacoustics.com
[email protected]
4 Ostro placed at the 4 vertices of a square area to be sonorized in the central area.
USER GUIDE
1/2 1/2
2-4 m 2-4 m

5: Accessories
Accessories are available to complete the expe-
rience of the Pequod Ostro system:
Cod. BAG01OS: Protective PVC Bag sized for
Ostro system, waterproof soft nish to protect
from scratches and weather
Cod. GR10OS: Front Protection Grille of the 10”
coax, made of stainless steel. Usually included
as standard component in most orders, delete
option is available when protection is not nee-
ded (installation at ceiling height, for example)
Cod. BSSTOS: Stand with Concrete Base with
logo and stainless steel 35mm tube (lenght 1500
mm) for supporting a freestanding Ostro system
without Ovoid sub
Cod. TBBOV18OS: Ovoid Connection Pipe in
stainless steel diameter 35 mm (length 800 mm)
suitable for coupling above the sub Ovoid 18 sy-
stem. Other lengths available on demand.
Cod. WALLPLTOS : Wall plate, made of stain-
less steel, to suspend the Mounting Bracket.
Cod: MBRAOS : Mounting Bracket, made of
stainless steel, to be connected to the wall plate
or directly to wall, ceiling.
Pequod Acoustics Srl.
Via del Madonnone 25, Florence, Italy
www.pequodacoustics.com
[email protected]
USER GUIDE
Water proof bag
Cod. BAG01OS
Ovoid connection
pipe
Cod. TBBOV18OS
Steel Mesh grille
Cod. GR10OS
Wall plate
Cod. WALLPLTOS
Mounting Bracket
Cod. MBRAOS
Stand with
Concrete Base
Cod. BSSTOS