Ahuja ASX-312BT Wall Speaker

Ahuja ASX-312BT Wall Speaker

The Ahuja ASX-312BT is a compact 2-way PA wall speaker for 100V line public address systems, rated at 30W RMS with 45W maximum power handling. It combines a 100mm (4-inch) water-resistant PP-coated cone woofer with a 25mm (1-inch) titanium dome tweeter and a 2-way crossover network, in a compact black plastic housing that mounts on the wall with a U-bracket. The BT suffix denotes the 100V line version with a built-in line matching transformer; it is not a Bluetooth model.

Small rooms still deserve proper two-way sound. Single-driver ceiling and wall speakers can make announcements audible, but music and speech both benefit from a dedicated tweeter handling the high frequencies. The ASX-312BT brings that 2-way design to restaurants, lounges, banks, showrooms and similar spaces where a larger speaker would be out of place, with power taps that let the installer set each speaker’s level to suit its room.

Key features

• 2-way design with woofer, titanium dome tweeter and crossover network
• 30W RMS, 45W maximum power rating
• 100V line operation with built-in line matching transformer
• Selectable power taps of 30, 20, 15, 10 and 5W
• Rear slotted rotary switch for easy tap selection
• Water-resistant PP-coated woofer cone
• U-bracket for firm, convenient wall mounting
• Compact black housing, 180 x 248 x 140 mm, 2.92 kg

Two-way sound in a compact housing

Splitting the frequency range between two drivers lets each do its job properly. The 4-inch woofer, with a water-resistant polypropylene-coated cone, handles speech fundamentals and the body of background music, while the 1-inch titanium dome tweeter reproduces the high-frequency detail that makes announcements intelligible and music sound open rather than muffled. The 2-way crossover network divides the signal between them. Frequency response is 75Hz to 20,000Hz and sensitivity is 87dB at 1W and 1 metre, figures that suit the speaker’s role: clear, even coverage of small and medium rooms rather than high-volume reinforcement of large halls. The water-resistant woofer cone also supports use indoors and outdoors under eaves, as Ahuja intends for this series.

100V line operation and power taps

In a 100V line system, many speakers connect to a single amplifier over long cable runs, each speaker drawing only its tapped power through its own line matching transformer. The ASX-312BT offers taps of 30, 20, 15, 10 and 5W, selected with a slotted rotary switch knob at the rear. A speaker near a noisy entrance or in a larger lounge can be tapped higher; one in a small office or corridor can be tapped lower, and the system stays balanced room by room. The planning rule is simple: add the tap settings of every speaker on the line and keep the total within the amplifier’s rated output, leaving headroom. Wiring should be carried out with the amplifier switched off, with polarity consistent across all speakers.

Mounting and applications

The supplied U-bracket gives a firm wall fixing and lets the installer aim the speaker into the room. At 180mm wide, 248mm high and 140mm deep, and weighing 2.92kg in this 100V version, the housing is compact enough for pillars, walls above seating and retail shelving lines. Ahuja positions the ASX series for airports, banks, schools, hotels, restaurants, lounges, hospitals and showrooms, covering both background music and announcement duties. The low-impedance sibling models in the series serve conventional amplifier outputs; this BT version is specifically the one to specify where a 100V line amplifier is installed.

For a small or medium room on a 100V line system, the Ahuja ASX-312BT is a complete, installer-friendly answer: genuine 2-way sound, five usable power taps, simple rotary selection and a compact housing that mounts firmly and stays discreet.