Definitive Technology BPX User manual

DePnitive Techmlngj®
The Leader in High-Performance Loudspeakers®
BPX
Full Range Bipolar Surround/Satellite
Speaker System
Owner's Manual
Congratulations
Congratulations on your purchase of the Defmitive
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.), anon-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 acompact, high-quality bipolar (equal sound
radiates both front and rear) speaker system intended
primarily for use as arear 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 afront "effects" speaker in multi-channel DSP
systems or as afront main left and right speaker.
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.
*Registered Trademark

Connecting Your Loudspeakers
It is critical for proper perfonnance that all speakers (left, right, center and rear) be
connected in proper phase. Note that one tenninal on each speaker (+) is colored red
and the other (-) is colored black. Please make certain that you connect the red (+)
tenninal on each speaker to the red (+) tenninal of its channel on your amplifier or
receiver and the black (-) tenninal to the black (-) terminal.
It is essential that all
speakers be connected in the same way to the amplifier (in phase).
If you experience
agreat lack
of bass, it is likely that one speaker is out of phase with the others.
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 abigger amplifier.
Positioning the BPXs in Your Room
For Rear Surround. Side Surround or Center Rear Speakers
The BPXs are designed to be extremely flexible in tenns 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" allS.1, 6.1 and 7.1 decoding systems. They may be
used on the side walls, rear walls or in the rear comers
of the listening room. When
placed along the side walls the speakers should nonnally be located adjacent to or
behind the listening position. The speakers may also be placed near the rear comers
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. Nonnally 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 perfonnance in your particular room. As astart-
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.
For Front Main (Left and Right) Speakers
Because of their superb perfonnance characteristics, the BPXs can also be used
as afront main system.
In this configuration they should nonnally 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.

For Front Effeds Speakers
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, ifnecessary.
Mounting BPXs With Supplied Mounting Plates
Each set of BPXs comes with apair 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 arecess 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 atoggle 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.
Technical Assistance
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
Service and warranty work on your Defmitive 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]
Visit us at www.definitivetech.com

BPX Specifications
Dimensions
Frequency Response
Efficiency
Nominal Impedance
Driver Complement
Recommended
Associated Amplification
10"W x 6 lh"D x17 1/2"H
38 Hz-30 kHz
90 dB
Compatible with 8ohm outputs
Four
14 cm. cast-basket high resolution, high power, bassi
midrange drivers with mineral filled polypropylene cones,
butyl rubber surrounds and dust caps, and
two 25 ffiffi. fer-
rofluid damped moving coil pure aluminum dome tweeters
10-350 watts/channel
Limited S-year Warranty
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 from the date ofthe original purchase from aDefInitive Technology Franchised
Dealer. However, this warranty will automatically terminate prior to the expiration of fIve (5) years 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." To obtain the warranty protection for your
DefInitive Technology Product(s),
you must fIll out the Warranty Registration Card(s), within ten days
of
the date ofpurchase.
Defective Products must be shipped, together with proofofdate ofpurchase, prepaid
insured to the
Franchised 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 aDefinitive
Technology Franchised Dealer it is determined that the unit was defective in materials or workmanship
at
any time during this Warranty period, Definitive Technology or the DefInitive Technology Franchised
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 ofDefinitive Technology. Product(s)
replaced or repaired under
this Warranty will be returned to you, within areasonable tune, freight col-
lect.
This Warranty does not include service or parts to repair damage caused by accident, misuse,
abuse, negligence, inadequate packing or shipping procedures, commercial use, voltage in excess of
the rated maximum ofthe unit, cosmetic appearance ofcabinetry not directly attributable to defects in
materials or workmanship, or service, or repair or modifIcation ofthe 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 Franchised 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 youfor any incidental or consequential damages
arising out
of the use or inability to use the Product, even if Definitive Technology or aDefinitive
Technology Franchised Dealer has been advised of the possibility of such damages, orfor any claim
by any other party. Some states do not allow the exclusion or limitation of consequential damages, so
the above limitation 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.
C€
This product complies with the essential
requirements of
the EMC directive 89/336/EEC.
MBPX 100101

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De.Pnitive Tech11fJ!Dgy®
The Leader in High-Performance Loudspeakers
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