This subject has intrigued for a while - underbed sub-woofer. I recently abandoned the Mk IV. The design limitations mean that below a typical bed-frame you've got 250mm from floor to the underside of the slats, so your driver size is limited.
Recently, I joined together two LG subs with 7" drivers, the result was expected - nothing to write home about. No cost, no harm, no foul. Everything changed when I slid the sub under the bed.
BOOM!
I'm guessing +20dB @ 50hz.
I can only surmise this is a room mode phenomenon. Under a bed, the cabinet is effectively in room with a 10" high ceiling - so we are effectively in car sub territory. Is there any way this circumstance can be foreseen & modeled for?
2 x 7" in 30 litres (ported) tuned to 57hz, Crap in a room but wicked under a bed.
Recently, I joined together two LG subs with 7" drivers, the result was expected - nothing to write home about. No cost, no harm, no foul. Everything changed when I slid the sub under the bed.
BOOM!
I'm guessing +20dB @ 50hz.
I can only surmise this is a room mode phenomenon. Under a bed, the cabinet is effectively in room with a 10" high ceiling - so we are effectively in car sub territory. Is there any way this circumstance can be foreseen & modeled for?
2 x 7" in 30 litres (ported) tuned to 57hz, Crap in a room but wicked under a bed.