Definitive Technology BPX User manual

Please Inspect For Shipping Damage
Each loudspeaker leaves our plant in perfect condition. Any
visible or concealed damage most likely occurred in handling
after it left our plant and should be reported at once to your
Definitive dealer or the shipping company which delivered
your loudspeaker.
Congratulations
Congratulations on your purchase of the Definitive
Technology BPX Bipolar Surround/Satellite Speaker
System. This revolutionary loudspeaker utilizes state-
of-the-art components (cast-basket homopolymer-
coned bass/midrange drivers, moving coil
ferrofluid-cooled dome high-frequency radiators,
uniphase crossover networks, etc.), a non-resonant
monocoque cabinet and low-diffraction construction in
order to achieve the most lifelike sound possible in
your listening room for many years to come. The
BPX is a compact, high-quality bipolar (equal sound
radiates both front and rear) speaker system intended
primarily for use as a rear surround, side surround
and/or center rear speaker in Dolby Pro Logic*, Dolby
Digital*, Dolby EX*, DTS* and all 5.1, 6.1 and 7.1
surround sound systems. In addition, it can also be
used as a front “effects” speaker in multi-channel DSP
systems or as a front main left and right speaker.
BPX
Full Range Bipolar Surround/Satellite
Speaker System
O
Ow wn ne er r' 's sM Ma an nu ua al l
* Registered Trademark

It is critical for proper performance that all speakers (left, right, center and rear) be
connected in proper phase. Note that one terminal on each speaker (+) is colored red
and the other (-) is colored black. Please make certain that you connect the red (+)
terminal on each speaker to the red (+) terminal of its channel on your amplifier or
receiver and the black (-) terminal to the black (-) terminal. It is essential that all
speakers be connected in the same way to the amplifier (in phase). If you experience
a great lack of bass, it is likely that one speaker is out of phase with the others.
F
Fo or rR Re ea ar rS Su ur rr ro ou un nd d, ,S Si id de eS Su ur rr ro ou un nd do or rC Ce en nt te er rR Re ea ar rS Sp pe ea ak ke er rs s
The BPXs are designed to be extremely flexible in terms of their placement
when used as rear surround, side surround or center rear surround speakers. Their
bipolar radiation characteristics make them perfect for Dolby Pro Logic, Dolby
Digital, Dolby EX, DTS and all 5.1, 6.1 and 7.1 decoding systems. They may be
used on the side walls, rear walls or in the rear corners of the listening room. When
placed along the side walls the speakers should normally be located adjacent to or
behind the listening position. The speakers may also be placed near the rear corners
of the room or located on the rear wall. If you have your couch or listening position
near or against the rear wall, we suggest rear wall placement of the BPXs with them
positioned on either side of the couch and in from the side wall. High placement is
preferred; however, midwall or floor placement is acceptable. Normally speakers
would be hung on the wall with the input connection plate up against the wall;
however, the BPXs may also be placed on shelves or stands. Of course, experimen-
tation is encouraged to get the best performance in your particular room. As a start-
ing point, we suggest mounting the speakers on the side walls behind the listening
position about 3-6 feet off the floor and halfway between the listening position and
the rear wall.
F
Fo or rF Fr ro on nt tM Ma ai in n( (L Le ef ft ta an nd dR Ri ig gh ht t) )S Sp pe ea ak ke er rs s
Because of their superb performance characteristics, the BPXs can also be used
as a front main system. In this configuration they should normally be placed about
6-8 feet apart approximately at ear level with the inside facing baffle, which has
drivers mounted on it, facing towards the listening position.
C
Co on nn ne ec ct ti in ng gY Yo ou ur rL Lo ou ud ds sp pe ea ak ke er rs s
P
Po os si it ti io on ni in ng gt th he eB BP PX Xs si in nY Yo ou ur rR Ro oo om m
Usually if distortion is heard when the speakers are being driven at
loud levels, it is caused by driving (turning up) the amplifier too loud and
not by driving the speakers with more power than they can handle.
Remember, most amplifiers put out their full-rated power well before the
volume control is turned all the way up! If your speakers distort when you
play them loud, turn down the amplifier or get a bigger amplifier.

Each set of BPXs comes with a pair of optional mounting plates which may be
used to hang the speakers on the wall. To use these plates, simply fasten the plates
(with the round hole at the bottom of the plate) to the rear panel of the speaker.
Please note that there is a recess routed under the grill cloth on the top half of the
rear of the speaker (above the input connecting plate) into which the mounting plate
fits (sandwiching the cloth between the plate and cabinet, when the mounting plate
is pressed into the recess). Simply feel for the recess and press the mounting plate
into it, fastening it into the cabinet with the provided screws. Use a toggle bolt or
other similar anchored fastener in the wall to hold the screw which the mounting
plate will hang on. Do not use an unanchored screw in the wall.
F
Fo or rF Fr ro on nt tE Ef ff fe ec ct ts sS Sp pe ea ak ke er rs s
The BPXs are ideal for use as front effects speakers in DSP installations. They
should be placed on the front wall with the wire terminals against the wall and the
speakers separated by approximately two-thirds of the front wall. Placement above ear
level is recommended if possible; however, lower placement is possible, if necessary.
It is our pleasure to offer assistance if you have any questions regarding your
BPXs or their setup. Please contact your nearest Definitive Technology dealer or
contact us directly at 410-363-7148.
Service and warranty work on your Definitive loudspeakers will normally be
performed by your local Definitive Technology dealer. If, however, you wish to
return the speaker to us, please contact us first, describing the problem and request-
ing authorization as well as the locations of the nearest factory service center.
Please note that the address given in this booklet is the address of our
offices only. Under no circumstances should loudspeakers be shipped to
our offices or returned without contacting us first and obtaining return
authorization.
Definitive Technology Offices
11433 Cronridge Drive
Owings Mills, Maryland 21117
Phone: [phone]
M
M
o
o
u
u
n
n
t
t
i
i
n
n
g
g
B
B
P
P
X
X
s
s
W
W
i
i
t
t
h
h
S
S
u
u
p
p
p
p
l
l
i
i
e
e
d
d
M
M
o
o
u
u
n
n
t
t
i
i
n
n
g
g
P
P
l
l
a
a
t
t
e
e
s
s
T
Te ec ch hn ni ic ca al lA As ss si is st ta an nc ce e
S
Se er rv vi ic ce e
Visit us at www.definitivetech.com

B
BP PX XS Sp pe ec ci if fi ic ca at ti io on ns s
Dimensions
Frequency Response
Efficiency
Nominal Impedance
Driver Complement
Recommended
Associated Amplification
10"W x 61/2"D x 171/2"H
38 Hz – 30 kHz
90 dB
Compatible with 8 ohm outputs
Four 14 cm. cast-basket high resolution, high power, bass/
midrange drivers with mineral filled polypropylene cones,
butyl rubber surrounds and dust caps, and two 25 mm. fer-
rofluid damped moving coil pure aluminum dome tweeters
10 – 350 watts/channel
Definitive Technology warrants to the original retail purchaser only that this Definitive Technology
Loudspeaker Product (the “Product”) will be free from defects in materials and workmanship for a period of five
(5) years covering the drivers and cabinets, and three (3) years for the electronic components from the date of the
original purchase from a Definitive Technology Authorized Dealer. However, this warranty will automatically ter-
minate prior to the expiration of five (5) years for the drivers and cabinets and three (3) years for the electronic
components if the original retail purchaser sells or otherwise transfers the Product to any other party. The original
retail purchaser shall hereinafter be referred to as “you.” Defective Products must be shipped, together with proof
of date of purchase, prepaid insured to the Authorized Dealer from whom you purchased the Product, or to the
nearest factory service center. Product(s) must be shipped in the original shipping container or its equivalent; in
any case the risk of loss or damage in transit is to be borne by you. If, upon examination at the Factory or a
Definitive Technology Authorized Dealer, it is determined that the unit was defective in materials or workman-
ship at any time during this Warranty period, Definitive Technology or the Definitive Technology Authorized
Dealer will, at its option, repair or replace this Product at no additional charge, except as set forth below. All
replaced parts and Product(s) become the property of Definitive Technology. Product(s) replaced or repaired
under this Warranty will be returned to you, within a reasonable time, freight collect.
This Warranty does not include service or parts to repair damage caused by accident, misuse, abuse, negli-
gence, inadequate packing or shipping procedures, commercial use, voltage in excess of the rated maximum of
the unit, cosmetic appearance of cabinetry not directly attributable to defects in materials or workmanship, or
service, or repair or modification of the Product which has not been authorized by Definitive Technology.
Definitive Technology makes no Warranty with respect to its Products purchased from dealers or outlets other
than Definitive Technology Authorized Dealers. This Warranty is in lieu of all other expressed Warranties. If this
Product is defective in material or workmanship as warranted above, your sole remedy shall be repair or
replacement as provided above. In no event will Definitive Technology be liable to you for any incidental or con-
sequential damages arising out of the use or inability to use the Product, even if Definitive Technology or a
Definitive Technology Authorized Dealer has been advised of the possibility of such damages, or for any claim by
any other party. Some states do not allow the exclusion or limitation of consequential damages, so the above lim-
itation may not apply to you.
All implied warranties on the Product are limited to the duration of this expressed Warranty. Some states do
not allow limitation on how long an implied Warranty lasts, so the above limitations may not apply to you. This
Warranty gives you specific legal rights, and you also may have other rights which vary from state to state.
Limited Warranty:
5-Years for Drivers and Cabinets,
3-Years for Electronic Components
This product complies with the essential
requirements of the EMC directive 89/336/EEC.
MBPX 012209