Here are the measurements of the Etymotic Evo Asia Tour review unit done on my IEM Measurement Rig v1.0.
Released in 1991, the ER4 was the world’s first noise-isolating high-fidelity in-ear earphone that became the basis of all subsequent in-ear earphones and in-ear monitors worldwide, creating an entire category of consumer electronics. 30 years later, the ER4 is still produced and while it’s changed over the years, it is still channel-balanced to within 1 dB by Etymotic.
If any earphone was to be considered the most significant in earphone history, it would be the ER4, the one that started it all. So I thought it would be interesting to see how it has evolved over the years.
On 1 Jan 2021, Etymotic announced they will be releasing a new multi-driver earphone, a first for them. Here is what we know so far about it.
Continue reading “Etymotic EVO – What We Know So Far”These are the first measurements from v1.0 of my IEM Measurement Rig.
3 samples each of the left and right channel. For each sample I remove and re-insert the IEM.
Please disregard this post and see the latest final A4000 measurements (frequency response graphs) and comparisons with Etymotic ER2XR using v1.0 of my IEM Measurement Rig.
These measurements are made on my DIY IEM measurement rig and are not accurate, and don’t necessarily represent what you might hear, especially before 60 Hz (huge sub-base roll-off) and after 10 kHz (and maybe even after 3 kHz as my ER2XR graph is very different compared to Crinacle’s post that). You can use it just to get a comparative idea, hence the comparison with ER2XR to give you a point of reference. Improving the rig is an ongoing process.
Here is Crinacle’s ER2XR graph for reference
It looks like final went with the mids to bass rise like in the E series and the highs of the A8000 on A4000.
