DIY Pro Audio · Build plans · Know-how
Build plans for subwoofers, tops and monitors, clearly explained technical knowledge and calculators. Every figure names its source – if it is not backed up, it is not here.
Choose a category. Every plan shows which data are backed by sources and which are missing.
Selected by the editors – for data quality and variety, not for clicks. No plan is fully verified yet; the verification status is shown on every card.
A vented wedge monitor with a 12-inch coaxial driver. Celestion supplies a drawing, passive crossover and measured frequency and dispersion data with measurement conditions.
An 18-inch bass reflex subwoofer as a reference design by the driver manufacturer. The drawings are very detailed, but the document does not explicitly state the volume and tuning frequency.
A folded bass horn for an 18-inch driver with high efficiency. Four drawings contain dimensions, angles, mitres and panel lengths.
A scoop enclosure for an 18-inch driver. The drawings give the driver, horn length, cut-off frequencies and material; level and performance data are missing.
A compact trapezoidal top with a 12-inch woofer and a compression driver on a horn. Eminence supplies crossover values, design targets and simulated and measured curves.
A bass reflex top with a 15-inch woofer and a 1.4-inch compression driver on a 60° × 40° horn. 18 Sound supplies the passive crossover, measurements and polar plots.
Budget only with evidence: a plan only enters this section if a source explicitly classes it or its driver as inexpensive. We do not quote prices – they change all the time.
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
A bass reflex/horn hybrid for an inexpensive 18-inch driver from the Hifi-Forum. All performance data are the designer’s simulations.
A compact 12-inch subwoofer for beginners. The free PDF includes a datasheet, measurements, a DSP preset and parts lists for two panel thicknesses.
Every principle has its strengths. The enclosure type determines size, efficiency and low-frequency extension. The sketches are schematic, not to scale.
6 articles in a sensible order – from wavelength to protecting the driver with a controller. Each article also makes sense on its own.
Clear for beginners, precise enough for professionals. Every article starts with a short explanation and names its sources.
3 articles
Sound, frequency, wavelength, level and phase – the physical basics for loudspeaker building.
2 articles
Driver construction, Thiele-Small parameters, power handling and efficiency explained clearly.
8 articles
How bass reflex, sealed, bandpass, horn, tapped horn and scoop work – with pros and cons.
All 8 articles: Enclosure types1 article
Subwoofer arrays, cardioid, end-fire and delay lines.
1 article
Crossovers, EQ, limiters and gain structure.
In preparation: Horns · Measurement · Enclosure building · Safety
The designer and the calculators run entirely in your browser, and the formula is shown openly on every page. The glossary explains technical terms in a sentence or two.
PASpeaker-Base does not aim to have the most build plans, but the most reliable ones. That is why every value shows where it comes from.
Tier A
Primary sources
Manufacturer datasheets, reference designs and original plans.
Measurement ≠ simulation
Clearly separated
Simulated curves are always labelled as simulations.
No estimates
Gaps stay visible
If a value is missing from the source, it says “not available”.