Flatsub Midi is a different active compact subwoofer. Designed for hanging on the wall or for placing on the floor under a sofa.

The bass driver is invisible on the back facing the wall, so the front is completely smooth – perfect with small children or animals in the house. Can be used with our Flatbox speakers but is equally suitable for complementing other manufacturers’ speakers.

With variable level control, variable low pass filter and variable phase control, it matches many different types of listening rooms and speaker setups. Built-in digital amplifier of 150 watts with AutoStart. Available in white silk matte finish and black high gloss piano paint.

Description / Active subwoofer for wall mount
Amplifier / Digital 150 Watts 
Amplifier Class D
Woofer size 1 x8”  
Phase control for subwoofers    0-180 degrees cont. variable
Frequency range 25 – 200 Hz 
Low pass filter    40 – 200 Hz
Low level input    Yes
Low level output   Yes
Finish / colour Black high gloss finish
Dimension (W x D x H) 400 x 172 x 445 mm / 15,7″ x 6,77″ x 17,5″
Weight  9,8 kg / 21,6 lbs