Guides

Plain-English how-tos for building, measuring and fixing speakers. The trade-offs are left in, including the times DIY isn't worth it.

Guides

Workshop drawing of a two-way speaker with a measurement mic in front, beside a graph comparing a flat response from a crossover designed from measurements with a guessed crossover that dips and bumps where voices sit.

Why you can't guess a crossover (and what to do instead)

"Where should I cross these?" is one of the questions I get asked the most. The honest answer is that nobody can tell you without measuring the drivers in your...

Why you can't guess a crossover (and what to do instead)

"Where should I cross these?" is one of the questions I get asked the most. The honest answer is that nobody can tell you without measuring the drivers in your...

Two pages of an example NB Audio subwoofer report on grid paper: the suggested sub, its key figures, a comparison table and response charts.

Don't Ask a Chatbot to Design Your Speaker. Ask It to Build the Calculator.

More and more people are asking AI chatbots to design their speakers, and getting nowhere. Here's why, what AI is actually good at in speaker design, a real example of...

Don't Ask a Chatbot to Design Your Speaker. Ask It to Build the Calculator.

More and more people are asking AI chatbots to design their speakers, and getting nowhere. Here's why, what AI is actually good at in speaker design, a real example of...

Chart: a sub at full drive vs the same sub EQ'd flat to 20 Hz

Why I don't tune subs "flat to 20 Hz"

Making a vented sub "flat to 20 Hz" doesn't add deep bass. It turns everything above 20 Hz down. Here's why I let a sub play its natural shape, and...

Why I don't tune subs "flat to 20 Hz"

Making a vented sub "flat to 20 Hz" doesn't add deep bass. It turns everything above 20 Hz down. Here's why I let a sub play its natural shape, and...

Blueprint-style line drawing on a teal grid: a room plan with two speakers angled towards a listening seat.

Testing and tuning your speakers: first sound, fault-finding and placement (Beginner Guide, Part 8)

Your speakers are built. Before you turn them up, start one quietly, compare the pair in one marked spot, track any fault one change at a time, and only then...

Testing and tuning your speakers: first sound, fault-finding and placement (Beginner Guide, Part 8)

Your speakers are built. Before you turn them up, start one quietly, compare the pair in one marked spot, track any fault one change at a time, and only then...

Blueprint-style line drawing on a teal grid: crossover parts on a board, with two inductor coils, two capacitors and two resistors, and crossing filter curves above.

Designing the crossover: from the drawing to a working board (Beginner Guide, Part 7)

Most first crossovers are built from someone else's drawing. Here's how to read it, check it junction by junction, and what designing your own adds.

Designing the crossover: from the drawing to a working board (Beginner Guide, Part 7)

Most first crossovers are built from someone else's drawing. Here's how to read it, check it junction by junction, and what designing your own adds.

Blueprint-style line drawing on a teal grid: a speaker on a stand, a measurement microphone on a stand facing it, and a frequency response trace.

Your first speaker measurement: repeat it, then compare the pair (Beginner Guide, Part 6)

Your first measurement isn't about a perfect graph. It's about getting the same answer twice, then putting the second speaker through exactly the same test. Here's that session, step by...

Your first speaker measurement: repeat it, then compare the pair (Beginner Guide, Part 6)

Your first measurement isn't about a perfect graph. It's about getting the same answer twice, then putting the second speaker through exactly the same test. Here's that session, step by...