This subwoofer is similar in design to the "snorky" sub, but uses an EBS alignment.

The working volume is doubled to 100litres and the tuning dropped from 28 to 26hz. The increase in port activity required increasing port diameter to 103mm and fitting flares to both ends. Whilst 13mm routed flares would have been sufficient, this was the perfect opportunity to fit a pair of 20mm heat molded flares.

• Single 10 inch Jaycar CS-2274 Driver .
• 80W Jaycar AMP .
• 100 Litre 3.5 cu.ft enclosure
• 900H * 390W * 440D
• Weight - bare box - 30kg - 66lb
• Weight with driver and amp 39kg - 86lb
• Tuning Frequency 26 Hz
• Two 103mm flared ports
• WinISD Calculated Peak Output 105 dB
• Estimated cost $500 Aus

Extended Bass Shelf (EBS) alignment gives extension down to 24hz (-3dB point)

Here's the response as measured outside by RoomEQ Wizzard

Flare-it was used to select the size of flare required. Using 20mm heat molded flares on the port exits, and 13mm donut rings on the intakes, builds in some headroom at 25hz

Cone excursion is within Xmax+10%