Yes, it is possible to connect two subwoofers to a mono amplifier, provided the subwoofers, amplifier and wiring configuration are correctly matched.
A mono amplifier is designed to power subwoofers from a single bass channel. Because low-frequency bass is generally not directional in the same way as vocals or high-frequency sounds, subwoofers are commonly powered in mono rather than stereo.
Using two subwoofers can increase bass output, move more air and create a stronger low-frequency experience when the system is designed correctly. However, the final result depends on the subwoofers’ impedance, voice coil configuration, RMS power handling, enclosure design and the amplifier’s stable operating range.
Many mono amplifiers include two sets of speaker terminals for easier wiring, but these terminals are often internally connected. This means the wiring configuration still needs to be calculated properly so the amplifier sees a safe final impedance load.
Incorrect wiring can cause the amplifier to overheat, shut down, distort or become damaged. It can also affect subwoofer performance and long-term reliability.
For the safest and best-performing setup, speak with your nearest Focal Authorised Australian Dealer. A professional dealer can confirm the correct wiring method, amplifier compatibility and enclosure setup for your Focal subwoofer system.
