Deqx HDP-4 - Active Three-Way Speaker; Figure 6. Active Three-Way Speaker

DEQX User Manual
108
13.1.3 Active three-way speaker
Figure 6 shows the physical connections for an active three-way speaker. The DEQX can
use two different speaker configuration modes:
Tri-amp
The tri-amp speaker configuration mode is the most demanding of accurate
measurements. The reflection-free time window must be long enough that
correction can be done to well below the woofer-mid crossover frequency. In
addition, the acoustic half-space to full-space transition due to the cabinet will
need to be taken into account.
Bi-amp with optional stereo subwoofers
In this case, the “subwoofers” are the main woofers of the speaker and the limit
filters are simply set higher than is typical for subwoofers. Measure and calibrate
the tweeter and midrange drivers as for a two-way active speaker, and measure
and calibrate the woofers using a nearfield measurement as for subwoofers
(Chapter 8). Alternatively, you can use an in-room calibration for the woofers, as
described on page 121. Set up the woofer-midrange crossover with limit filters, as
explained on pages 118 and 119.
To add subwoofers to this type of speaker, see page 123.
Figure 6. Active three-way speaker