Bedienungsanleitung Bowers Wilkins PV1D (Seite 11 von 193) (Deutsch, Englisch, Holländisch, Französisch, Italienisch, Portugiesisch, Spanisch, Polnisch)

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5.3 Audio setup

It will help to have audio playing through the PV1D and

associated system while undertaking the audio setup

procedure.

Selecting Audio from the PV1D Setup Menu will

display the menu illustrated above left. The three menu

items provide the following functions:

Inputs

Select this to access the next menu level where

there is a choice of Line and Speaker level inputs to

congure. If only one type of input is connected in your

installation it is not necessary to congure both.

Speaker Input

For the Speaker input it is only necessary to match

the subwoofer’s sensitivity to the main speakers.

Look up the sensitivity (quoted in dB at 1m for

an input of 2.83V) of the main speakers in their

specication and enter this value at the Set

Sensitivity screen.

The default is 85dB.

Line input

Separate adjustment for Sensitivity and Gain

enables the PV1D’s signal to noise performance

to be optimised.

Setting the Sensitivity

Set the analogue input Sensitivity rst to reect

the specied output level of the source electronics

as shown in the following table:

Source Output Level PV1D Sensitivity

0.5V (or less) +6dB

1.0V 0dB

2.0V (or more) -6dB

If the LED on the front panel ashes red on

loud passages, this indicates input overload. If

that happens, select the next lowest sensitivity and

raise the Gain by 6dB to compensate. Most source

equipment has an output level of 1V so the default

is 0dB.

Setting the Gain

Setting the PV1D Gain balances the output level of

the subwoofer with the other speakers in the

system. If your PV1D is to be used in a home

theatre system in which it is connected to the

LFE output of an audiovisual processor, the

balance between the PV1D and the other speakers

will be adjusted when the processor’s speaker level

setup procedure is carried out. In this case the

PV1D Gain should be set at 0dB.

The default is 0dB.

For a PV1D used to enhance the low frequency

performance of conventional stereo speakers, the

Gain parameter must be set by ear. In this

application, you will need to congure a low-pass

lter to avoid response overlap between the PV1D

and your main speakers. You should do this before

assessing the correct gain level. See the Speaker

section that follows.

The default Gain is 0dB and you should use this

as the starting point. Once the PV1D is working,

listen carefully to a variety of music program

material and adjust the setting if necessary. It is

important to listen to a variety of music because

a Gain setting that sounds correct on one piece

may sound either too loud or too quiet on another.

Listen at a realistic volume level as the perception

of musical balance varies with volume level. The

aim is to nd a Gain setting appropriate to the

majority of material.

 Note:Rememberthatitisalwayspossible 

 temporarilytoadjustthePV1Dvolumeusingthe

 VolumeTrimfunction.



 Note:Ifitprovesdifculttondtheappropriate

 subwoofer/mainspeakerbalanceadjustingthe

 low-passlterphasemaybebenecial.

Selecting the Polarity

In the majority of cases the Line input Polarity

should be set to Normal. However, if the power

ampliers feeding the main speakers invert the

signal, select Inverted. The default is Normal.

Configure Inputs

Line

Speaker 85dB

Set Sensitivity

85dB

Line Input

Sensitivity -6dB

Gain 0dB

Polarity Normal

Line Polarity

Normal

Inverted

Line Gain

0dB

Line Sensitivity

+6dB

0dB

-6dB

Audio

Inputs

Speaker List

Presets

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