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For magnitude manipulation REW is more convenient, you can pretty much turn a drawing into a filter. For phase manipulation you can use rephase(it can change amplitude too but it's not as convenient and the result differs from REW, even if you switch REW to rephase mode in the EQ window). You...

It's expensive. Even minidsp flex only supports 2048 taps per channel.

Personally I don't like any Fazor Audezes comfort-wise, on LCD-X it was almost touching my ear. Also you're forgetting about LCD-GX. It's the lightest LCD series model without being as small and clampy as LCD-5.

I asked qudelix devs about convolver and they said it's too computationally expensive, they would only be able to support a few hundred taps. For now your only portable option is android + jamesdsp.

The architecture is not balanced, 4.4 is just for connectivity, if you measured crosstalk you'd see it's typical single ended crosstalk.

The killer feature of this amp is it has high-pass filter for the speakers if the sub out is utilized. This makes for a very streamlined 2.1 setup.

There's also a special squig where you can listen to music while making the EQ. The changes are reflected in real time. https://listener.squig.link

For now you can make EQ profiles for wavelet from scratch, squig.link style websites, including crinacle's, can export directly to wavelet format. Not as great as having PEQ in the app but still manageable to do entirely on your phone.

He doesn't measure below 200Hz so he never saw that.

EQ applications themselves may produce different results from the same set of filters, that's just something people should be aware of. Always measure what your speakers/headphones are actually outputting after EQ if you can.

I thought undithered quantization produces distortion, not noise.

With Qudelix you can have the same EQ in every app, in every device even. No need to worry about apps that don't have EQ, that a system update broke your system-wide EQ, that EQ applications themselves produce different frequency response from the same filters, etc.

LCD-24 has the lowest distortion measured on ASR if I remember correctly, pretty much ambient noise limited since it's lower at 114 than at 94. But when I tried it IRL it had channel imbalance. A shame.

That's how I ended up with Audeze and cheap single dynamic driver IEMs(kind of absurd IEMs get worse in distortion the more you spend on them). Stock tuning of any headphone is just not doing it for me these days.

That's an ABX box right there.

Weighting bass distortion is baffling to me. Sure, comparing bass vs bass with harmonics added is probably not that audible. But that's not how it works in headphones. Play a voice sample and a strong subbass tone at the same time. A headphone with high bass distortion will make the voice warble...

I'm using a es9280c DAC+cable combo from aliexpress. As portable as it gets and outputs fair 2V. Gets warm in use though.

With the drama I forgot it's even an IEM discussion thread. A well though out product with not much to blame. Like the inclusion of the impedance adapter, the one thing where there's a confirmed preference split is in the level of bass. A potentiometer in the cable would be a more elegant...

In non-linear domain most definitely. Which is why stuff like Quarks DSP is unusable. For GRAS it's 98%, for clone couplers - who knows. If the whole argument is "if it's not 100% then it's invalid" then I'm not interested in continuing. Here's their method. The only difference is in the rig.