Bedienungsanleitung Bowers Wilkins PV1D (Seite 12 von 193) (Deutsch, Englisch, Holländisch, Französisch, Italienisch, Portugiesisch, Spanisch, Polnisch)

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ENGLISH

Speaker

Modies the PV1D's response to blend optimally with

the main speakers. It is important that you congure

this section for all applications.

1. For 2.1 stereo applications not using a surround

processor, a low-pass lter is calculated to match

the subwoofer to the natural bass response of the

main speakers.

2. When using a surround processor, the internal

low-pass lter of the PV1D is not required,

but its response still requires adapting to the

main speakers. In addition, you should use our

recommended settings for certain parameters of

the processor. See also Section 6 – Conguring a

Surround Processor.

The menu options are User and List.

Selecting List advances to the Choose Speaker

screen where you may select one of a number of

specied Bowers & Wilkins models. If the name of your

main speakers is listed here, simply select it and all

parameters will be set automatically.

At the top of the list you will initially see the option

None. The PV1D SubApp™ program will allow further

Bowers & Wilkins models to be selected from a drop-

down list and any model selected there will replace

None.

Certain powered speakers, such as Panorama. already

include subwoofer ltering. For such main speakers,

select List then None and do not overwrite None from

SubApp.

Selecting User provides the option of specifying

a custom low-pass lter. Select User if your main

speakers are not listed either internally or within

SubApp™ or are not a Bowers & Wilkins model.

The default is Speaker and the default speaker is the

rst named on the list after None.

The low-pass lter User parameters are Freq(uency),

Slope and Phase.

Select Freq to set the low-pass cut-off frequency of

the lter to match the high-pass –6dB cut-off frequency

of the main speakers. For Bowers & Wilkins speakers,

this can be found in the technical specication under

Frequency Range. If the specication of your speakers

only quotes a –3dB frequency, multiply this by 0.6 for

closed-box systems and by 0.7 for vented-box (reex)

systems to get a close enough approximation to the

–6dB frequency. The default is 80Hz.

Select Slope to set the low-pass lter slope of the

lter to match the high-pass roll-off slope of the main

speakers. If the slope is not given in the speaker’s

specication, select 4th-order if the main speakers are

vented (ie have a reex port) or have a passive radiator

(sometimes called an ABR) and 2nd-order if they do

not. The default is 4th-order as the majority of Bowers

& Wilkins speakers are vented-box types.

Select Phase to adjust the phase integration of the

PV1D and the main speakers. Adjusting the phase can

be useful to overcome audible problems of integration

between subwoofer and main speakers, usually with

room acoustics at their source. Set the Phase initially

to 0° for the 4th-order option and 180° for the 2nd-

order. Compare these settings with the other options

on a variety of music with signicant bass content

and choose the option that gives the fullest bass. The

default is 0°.

Low-Pass

User

List M-1 (2011)

Choose Speaker

None

M-1 (2011)

M-1 (2005)

686

685

User Low-Pass

Freq 80Hz

Slope 4th-order

Phase 0deg

Low-Pass Phase

0 deg

90 deg

180 deg

270 deg

Low-Pass Slope

2nd-order

4th-order

Low-Pass Freq

80Hz

Audio

Inputs

Speaker List

Presets

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