d&b audiotechnik Qi-SUB Manual - Página 6

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Fig. 4: CSA (Example)

Qi-SUB/QiCSA-SUB Manual

Operation with D6 or D12

NOTICE:

Only operate Qi-SUB/QiCSA-SUB loudspeakers with a correctly

configured d&b amplifier, otherwise there is a risk of damaging the

loudspeaker components.

Select the controller setup Q-SUB.

Within the D12 amplifier this is available in "Dual Channel" and "Mix

TOP/SUB" mode.

Selecting Q-SUB mode in the D6 or D12 enables up to two Qi-SUB

cabinets to be driven by the respective channel.

Selecting the Q-SUB configuration along with the CSA mode enables

up to two QiCSA-SUB cabinets to be driven by the respective channel.

In applications with low continuous levels and low ambient temperatures

up to three cabinets can be connected to a D12 channel.

Controller settings

100 Hz circuit

If the 100 Hz circuit is selected, the upper operating frequency of the

system is reduced from 130 Hz to 100 Hz.

CSA (QiCSA-SUB)

CSA (Cardioid Subwoofer Array) is a method to combine three or

multiples of three subwoofer cabinets to form an array with exceptional

directivity at low frequencies.

A QiCSA-SUB cabinet driven in CSA mode eliminates the energy

radiated to the rear of the two front radiating Qi-SUB cabinets (CSA

not selected).

CSA decreases the low end diffuse sound field, significantly improving

the direct-to-diffuse energy ratio in the audience areas.

Please note that all other settings of the amplifiers driving a CSA have

to be identical (input signal, level, 100 Hz, EQ, delay).

Please refer to d&b TI 330 (d&b code D5330.E), which describes the

setup in detail. The TI can be downloaded from the d&b website at

www.dbaudio.com.

Operation with E-PAC (Qi-SUB only)

Selecting Q-SUB mode enables the E-PAC to drive one Qi-SUB

loudspeaker.

The 100 Hz setting is available. The characteristics of the 100 Hz setting

are explained in the previous section "Operation with D6 or D12 -

Controller settings".

Please note that the E-PAC does not support the Cardioid Subwoofer

Note:

Array configuration (CSA).

(1.2 EN)

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