Definitive Technology BP 8B User Manual download pdf (Page 2)

It is critical for proper performance that both speakers (left and right) be connect-

ed 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.

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.

Connecting Your Loudspeakers

“Spiking” Your Loudspeakers

Speaker Break-In

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 con-

trol is turned all the way up! If your speakers distort when you play them

loud, turn down the ampliﬁer or get a bigger one.

An optional “spiking” kit has been provided should you desire to “spike” your

loudspeakers. “Spiking” your loudspeakers will provide greater stability when plac-

ing 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

nitive Technology is speciﬁcally not responsible for damage

which may result from the use of spikes.

The spike kit contains 4 spikes. To install,unscrew the plastic guides on the bot-

toms 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.

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Definitive Technology BP 8B User Manual Page 2