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Frequency response correction in HFA mode

Frequency response correction of the CPL function

d&b Yi7P/Yi10P Manual 1.2 en

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2.3. Operation

NOTICE!

Only operate d&b loudspeakers with a correctly configured d&b

amplifier, otherwise there is a risk of damaging the loudspeaker

components.

Applicable d&b amplifiers:

D80/D20/D12/D6/10D/30D.

Application

Setup

Yi7P

Y7P

Yi10P

Y10P

For applicable amplifiers, the controller setups are available in

Dual Channel and Mix TOP/SUB mode.

2.3.1. Controller settings

For acoustic adjustment the functions CUT, HFA and CPL can be

selected.

CUT mode

Set to CUT, the low frequency level is reduced. The cabinets are

now configured for use with actively driven d&b subwoofers.

HFA mode

In HFA mode (High Frequency Attenuation), the HF response of the

system is rolled off. HFA provides a natural, balanced frequency

response when a cabinet is placed close to listeners in near field or

delay use.

High Frequency Attenuation begins gradually at 1 kHz, dropping

by approximately 3 dB at 10 kHz. This roll off mimics the decline

in frequency response experienced when listening to a system from

a distance in a typically reverberant room or auditorium.

CPL function

The CPL (Coupling) function compensates for coupling effects

between the cabinet and close boundary surfaces. CPL begins

gradually around 1 kHz, with the maximum attenuation below

400 Hz. To achieve a balanced frequency response, the CPL

function can be set to dB attenuation values between 0 and –9.

Positive CPL values create an adjustable low frequency boost (0 to

+5 dB) at around 65 Hz and can be set when the system is used in

full range mode without subwoofers.

Cabinets per

channel