XHiFiX 10+ year member
Senior VIP Member
Today I decided to experiment with a downfire sub setup. I had an extra box (1.25cu ft) sitting in the garage and I just cut 2" length pieces of wood to make feet for it.
I've currently been running 2 Pioneer champion series 12's in a 3 cu ft sealed enclosure. Each one is the D4 version and they're series/parallel wired to a RF T3002 for 702wRMS @ 4 Ohms bridged.
I took one of the Pioneers to use in the downfire enclosure. Wired the coils in parallel for 2 ohms which would let the T3002 put out 923wRMS bridged.
Here, I corner loaded the box in the hatch.
Result - the one 12 in the downfire box sounds better than my previous box with the two 12's firing to the rear. There was noticeably more depth and 'rumble' and the bass sounded more natural. It was still loud but the sq was better.
So now I'm interested...what makes down-firing work better? Does it reduce cancellations? Why do they usually work better for vehicles with open cabins (trucks, hatchbacks) instead of cars with trunks?
I've currently been running 2 Pioneer champion series 12's in a 3 cu ft sealed enclosure. Each one is the D4 version and they're series/parallel wired to a RF T3002 for 702wRMS @ 4 Ohms bridged.
I took one of the Pioneers to use in the downfire enclosure. Wired the coils in parallel for 2 ohms which would let the T3002 put out 923wRMS bridged.
Here, I corner loaded the box in the hatch.
Result - the one 12 in the downfire box sounds better than my previous box with the two 12's firing to the rear. There was noticeably more depth and 'rumble' and the bass sounded more natural. It was still loud but the sq was better.
So now I'm interested...what makes down-firing work better? Does it reduce cancellations? Why do they usually work better for vehicles with open cabins (trucks, hatchbacks) instead of cars with trunks?