Definitive Technology BP 8B User Manual
BP 8B
Bipolar Loudspeaker
Owner's Manual
Congratulations
Congratulations on your purchase of the
Definitive Technology BP 8B Bipolar
Loudspeaker System. This revolutionary
loudspeaker utilizes state-of-the-art
components (cast basket homopolymerconed bass/midrange drivers, moving coil
ferrofluid-cooled pure aluminum dome
high frequency radiators, uniphase
crossover networks, etc.), a non-resonant
monocoque cabinet and unique bipolar
(front and rear) radiation in order to
achieve the most lifelike sound possible
in your listening room for many years
to come.
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.
Connecting Your Loudspeakers
It is critical for proper performance that both speakers (left and right) be connected in proper phase. Note that one terminal on each speaker (the +) is colored red and
the other (the -) 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 both
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 other.
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
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 one.
“Spiking” Your Loudspeakers
An optional “spiking” kit has been provided should you desire to “spike” your
loudspeakers. “Spiking” your loudspeakers will provide greater stability when placing your loudspeakers on carpeting and will also, according to many experts, result
in an overall improvement in sonic performance. Care should be taken when using
spikes as they may cause damage to wooden or other floors which are susceptible to
being scratched. Defi
which may result from the use of spikes.
nitive Technology is specifically not responsible for damage
The spike kit contains 4 spikes. To install,unscrew the plastic guides on the bottoms of the speakers. Then screw the 4 spikes into the T nuts. Then (preferably with
the help of another person) lift the speaker upright and lower it down to its exact
desired position on the floor. You must lower the speaker to the exact position you
want because once the spikes are in place you cannot move the speakers sideways
on the rug or floor – this may damage the floor or the speakers. Next, adjust the
spikes so the speaker sits solidly (and does not rock).
Please note that you can adjust the feet or spikes to tilt the speakers back (front
to back approximately 1/2” to 1” highter than rear) for even better sound.
Speaker Break-In
Your BP 8Bs should sound good right out of the box; however, an extended
break-in period of 20-40 hours or more of fairly loud playing is required to reach
full performance capability. Break-in allows the suspensions to work in and results
in fuller bass, a more open “blossoming” midrange and smoother high frequency
reproduction.
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