Definitive Technology Demand D11
Image source — © Definitive Technology
Model name
Demand D11
Frequency Response low +/- 3dB (Hz)
61
Frequency Response high +/- 3dB (Hz)
24000
Sensitivity (dB at 1 W/1m)
90
Impedance (Ohms)
8
Power amplifier requirements (W)
20 -200
Has internal amplification
N/A
Internal amplification power (W)
N/A
Size (sm)
33.02 x 18.42 x 31.75
Weight (kg)
7.7
Official link
You have an inch-long tweeter with an aluminum dome membrane and a small phase divider that also protects it from mechanical damage. Below is a 5 1/4" (133 mm) midrange/woofer driver with a polymer diffuser and the proprietary technology of the BDS (Balanced Dual Surround System), according to which the driver membrane is equipped with two suspensions at once - external and internal, and a special phase equalizer is installed in its center.