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Now that's how you holify an alu case!

To me that looks like soft clipping.

Well, imagination brings some setups, like plug the port with a mic-plug and reduce that from non-plugged sweep. Someone can probably come up with a more elegant solution. Any measurement is better than none though.

Fantastic! I will read this!

We know a thing or two about ports, their benefits and drawbacks. In passband enclosure you can think of the air in the port as a membrane that is the main source of sound. Compression drivers use compression chambers to increase acoustic resistance and improving efficiency. Air is not really an...

You haven't seen this yet?

Thank you, sir, that's true, but the room is a problem with all speakers, not just DIY. It's a lot easier job to deal with the room, with treatment and/or correction, than find a speaker that fits as-is. Once the room is dealt with, you are back to the original question and in my opinion, you...

That might have been the case 20-40 years ago. Nowadays we know.

That's mostly correct, but only when used in balanced interfaces on both ends. As for terms, differential input is the name for the technique to read a balanced output through XLR-cable. But please note, that ground can be wired to travel through any pin or even 2 pins of XLR-cable, if the...

The speaker system in my last post outputs less distortion at 100 dB than most Amirs tests at 86 dB at any Hz.

Read the long reply and the other papers on this matter as well, they give more insight. The short reply is for people with no patience.

KEF drivers can be bought and used in DIY. Accuton sells SOTA ceramics. SB Acoustics and SEAS have a fine range of graphene coated drivers. Scan Speak has been making top drivers for decades now. Multiple entry horns and ATH are far more advanced most people realize, still available for DIY, but...

NTK writes mostly nonsense. Balanced means balanced impedance of the two inner conductors. Differential input is the differential voltage of the two conductors in the input of the receiver. The voltage in the conductors can be anything as long as they are within acceptable range from each other...

I've thought about doing this, but all my gear uses XLR, so I never went through the effort... Theoretically you got the got and cold pins right. But XLR shield, pin 1, is supposed to go to ground and consumer RCA sleeve is often ground lifted (floating), which can conduct the noise from the...

It's not that hard, mass defines tuning frequency, you can simulated it in any simulator.

The first part is not entirely true. Cabinet and crossover design is not black magic. Nearly everything can be modeled and simulated to high accuracy, if you know what you are doing, before breaking the first glue bottle. The difficulty level depends on what you expect the loudspeaker to be...

Well, 3 pieces of better-than-salon-SOTA drivers from reputable brand (excluding diamond drivers) cost maybe 1-2k per speaker. Add a best-in-class dsp-plate-amp (800) which is overkill, but to cost no object. Stuffing into a cab is less than 150-200 each. I've CADded my own cabinets and spent...

A loudspeaker is a collection of compromises. You need to set a target, a goal before you can start choosing components or designs. I DIY to save money. With 5-6k and employing a pro carpenter you can create an end game set. But you need to define it first.

I wouldn't know about their other speakers, but I've owned a pair of their 1723 range sealed subs for a couple of years and I really like them. They reach 20 maybe 19 Hz quite confidently in my room, you need to drive them really hard until they start to distort and I'm very pleased for their...

I own this Apple USB-C dongle, but could not figure out how to use the ADC. So it takes a 4-conductor 3.5 mm TRRS plug to connect to the ADC, using the Ring closest to the Sleeve (which is kind of standard for headsets)? That's the only thing I didn't test, I only had passive dynamic mics with...