This is not a high spl subwoofer, it's purpose is to give my alpair7 tl's support from 30-60hz.
Using two 4 inch drivers (W4-792sj) seems a bit weak in subwoofer terms and when simulating in hornresp they x-max-out at 7-8W in this setup.
The reason I picked 4-inch woofers is to keep the total hight of the box below 14 cm which happens to be the space available under my sofa
Well plugged in and running, crossed at 60 hz 24 oct/db, I'm more than surprised over the efficiency of a tapped horn. I would guess that the cone displacement is just over 1mm at max level of the alpairs (subwoofer level tuned at my flavor of course) and in my way of listening to music thats l o u d.
Just wanted to share this since I'm so happy with it!
Regards [email protected]
Using two 4 inch drivers (W4-792sj) seems a bit weak in subwoofer terms and when simulating in hornresp they x-max-out at 7-8W in this setup.
The reason I picked 4-inch woofers is to keep the total hight of the box below 14 cm which happens to be the space available under my sofa
Well plugged in and running, crossed at 60 hz 24 oct/db, I'm more than surprised over the efficiency of a tapped horn. I would guess that the cone displacement is just over 1mm at max level of the alpairs (subwoofer level tuned at my flavor of course) and in my way of listening to music thats l o u d.
Just wanted to share this since I'm so happy with it!








Regards [email protected]