The HD 310/T are compact, lightweight and watertight horn speakers. They are designed to provide high efficiency and characterized by the high intelligibility of the reproduced sound with low distortion. The built-in line transformer makes it possible to connect the horn loudspeaker to both 70 and 100 V constant voltage lines, and select the desired power by means of a rotary dial on the rear cover.

• Built-in line transformer with multitap power selector on rear cover
• Hi-pass filter for protecting driver against out-of-range low-freq
• IP 66 construction for indoor-outdoor environmental temperature between -25°C to +70°C
• Aluminium flare with UV-stabilized auto extinguishing UL-HB ABS rear cover
• Stainless steel U bracket
• Coverage angle: 80°

Acoustical specifications

• Frequency Response (-10dB):  240 Hz ÷ 10000 Hz
• Max SPL @ 1m:  123 dB
• Coverage angle:  80°
• System Sensitivity:  108 dB

Power section

• Power Handling:  30 W

Transducers

• Compression Driver:  1 x 1.5''
• Input/Output section Input connectors:  Cable
• Output connectors:  Cable
• Constant Voltage Transformer:  70/100 V
• Power selection 1:  30 W - 333 ohm
• Power selection 2:  20 W - 500 ohm
• Power selection 3:  15 W - 667 ohm
• Power selection 4:  10 W - 1000 ohm
• Power selection 5:  5 W - 2000 ohm
• Power selection 6 (100 V):  2.5 W - 4000 ohm

Standard compliance

• IP protection grade:  IP 66
• CE marking:  Yes

Physical specifications

• Cabinet/Case Material:  Aluminium
• Hardware:  Stainless steel U bracket
• Colour:  Grey - RAL 7035

Physical & Dimensions

• Depth:  315 mm / 12.4 inches
• Diameter:  310 mm / 12.2 inches
• Weight:  1.9 kg / 4.19 lbs