LBH-112
A 12-inch hybrid subwoofer from Jobst-Audio’s beginner series. The official plan page is currently offline, and the terms of use only permit linking.
No performance data published
Budget
Subwoofer build plans that their designers explicitly describe as affordable or design for an explicitly affordable driver. Each plan page states who says so and where.
A 12-inch hybrid subwoofer from Jobst-Audio’s beginner series. The official plan page is currently offline, and the terms of use only permit linking.
No performance data published
Jobst-Audio now lists the LBH-112 as JB-Sub112h in the B series; the link to the official plan is under “b-serie”. The manufacturer describes the B series as low-cost beginner kits.
A bass reflex/horn hybrid for an inexpensive 18-inch driver from the Hifi-Forum. All performance data are the designer’s simulations.
In the opening post the designer presents the the box 18-500/8-A as an 18-incher “for very little money” and targets requests for low-cost subwoofers for party music.
A compact 12-inch subwoofer for beginners. The free PDF includes a datasheet, measurements, a DSP preset and parts lists for two panel thicknesses.
In the datasheet PlanSound calls the PS-Sub112 with the the box 12-280/8-W a “low-cost subwoofer for beginners”; in the shop the project is called “Super Budget PA Bass Projekt”.
Respect the driver’s limits
Power handling and maximum excursion are given in the driver’s datasheet. Do not leave out the plan’s recommended high-pass – it protects the driver from excessive excursion below its usable range.