Loudspeaker designer
Loudsmith takes you through the whole design: it picks the drivers, calculates the enclosure and the crossover, draws the plans and builds your shopping list. All in the browser, checked instantly against hi-fi targets.
Free No sign-up Desktop, tablet and phone
Workflow
Each step builds on the one before. Change anything and the app instantly recalculates the enclosure, crossover, drawing and budget.
Tell it what the speaker should do: bookshelf, tower or subwoofer, how many ways, how big, how loud and where it will stand. The app picks the drivers from the catalogue that fit your brief best.
For the chosen driver the app optimises seven enclosure types at once and shows which one works best. Lock any dimension and the rest is calculated.
It designs the passive crossover automatically from parts that are actually on sale, or you refine it by hand in a free-form network editor. FRD and ZMA driver measurements replace the model.
You get a workshop drawing with views and a section, a hole table for the front baffle and a cut list for the panels. Plus step-by-step build instructions for your enclosure type.
The complete shopping list with codes, prices and stock in one view. Tick what you already have and the budget updates at once.
Active speakers with DSP
Each driver gets its own amplifier channel and a digital processor does the crossover. The app picks the module, designs the filters and prepares the files you simply load into the amplifier.
See it and hear it first
Rotate the cabinet model in space, place it in your own room and listen to how its response shapes your music.
Tools
Besides the five steps the app has eight tools that work directly with your design.
Hi-fi checks, a search for the best fix and a comparison with the Needle and Audio Judgement speakers.
Room modes, wall reflections, optimal placement and a 3D room with a bass map.
Play music through your design's response and switch while it plays to compare.
Your saved designs and proven builds by well-known designers, opened in one click.
Nine calculators: L-pad, Zobel, notch, baffle step, cable, SPL and more.
Automatic parametric EQ from the model or a REW measurement, for Equalizer APO.
Five waveguide profiles with section, dimensions and throat impedance, profile export as CSV.
The whole project as an illustrated article with charts, drawing and shopping list, ready to save as PDF.
The calculations use a Thiele-Small model with baffle diffraction. It is a reliable estimate, not a measurement: the model does not know cone breakup, distortion or off-axis radiation. We recommend fine-tuning the finished crossover with FRD and ZMA measurements, which the app can load.
Blog
We explain the principles behind the app's calculations, so every number in your design makes sense.
How a passive crossover works, what active DSP crossovers bring, what they cost and which solution suits whom.
Read the article →Active DSPWhat Hypex FusionAmp modules are, how to choose and program them, and why they are the easiest route to an active loudspeaker.
Read the article →Room acousticsHow the room changes the sound of a loudspeaker, what exactly Loudsmith calculates in the Room tool, with which formulas, and how to find the best placement from it.
Read the article →Design processThe process from the brief through driver selection, simulation and measurement to crossover tuning. What you can learn from Zaph Audio, Linkwitz Lab and other designers.
Read the article →Start now
No installation and no sign-up. Your design is saved in the browser and you can export it.
Launch the app