Amina ALF 40 Discreet In Wall Subwoofer

By Amina


Utilising a unique adjustable ported design, the ALF40 bass-enhancer easily blends into any room environment by mounting within walls, ceilings, cabinets or other joinery with minimal visual impact. This passive 30W subwoofer can deliver 106dB SPL/1m down to 65 Hz making the ALF40 discreet bass-enhancer ideal for distributed audio systems. The ALF40 is provided with metal brackets for mounting directly to studs/joists, and is designed to be connected directly to a dedicated full range amplifier output. No additional filtering is required when used in conjunction with Amina Invisible loudspeakers

Example Applications

ALF40 may be installed in wall/ceiling cavities where there is a minimum 134mm depth. The adjustable port tube can be allows the ALF40 to vent straight into the room rather than into the cavity. ALF40 may also be installed.


Nominal Impedance

8 Ohms

Power Handling

30W (continuous) / 60W (peak)


88dB @ 1m/1W (Half space)

Frequency Response

65Hz - 155Hz (+/-6dB) 18dB / octave band-pass


106dB @ 1m (Half space)


359mm x 157mm x 134mm (14 9/64” x 6 12/64” x 5 18/64” )

Product Weight

3.25Kg (7.17lbs)


Ported, acoustic band-pass with built-in protection circuit

Port Location

Front or side convertible, length adjustable

Port Dimensions

39mm (1 34/64") / 43mm (1 44/64")

Electrical Connection

3-way binding post (4mm plug, spade or bare wire)

Overload Protection

Built In