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Joined 1 year ago
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Cake day: October 23rd, 2023

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    • HiFiMan HE400se: desk use at home, everything. I’d use this over the others to watch movies. Dat subbass rumble (speaker guys don’t kill me plz). Never turn off autoEQ on this.
    • Grado SR80e: also desk use at home, everything. Prefer this over the HE400se when I want something lighter on my head. Rarely use autoEQ, because I’ve grown to love the sparkle.
    • Samson SR850: currently in my hometown, didn’t carry them to where I work now as they’re rarely used. Planning to give them away or to be sold.
    • Audio-Technica ATH-M50X: sometimes for audio monitoring when video making, an extra earmuff on air travels.
    • KZ PR2: for in the office.
    • Tangzu Wan’er SG: for commuting when I want to use my iPod, have foam ear tips for better seal. An alternative for audio monitoring when video making.
    • Sony WF-1000XM4: sometimes commuting, definitely for air travel, under the M50X.
    • FiiO F9 Pro: were my IEM flagship, until beaten by… the Wan’er. And PR2. Planning to sell them.




  • Impedance in layman’s terms is how difficult it is to drive a set of headphones, rated in ohm. The more ohm it’s rated for, the more volume you need to crank to get the same level of sound. IEMs/earbuds tend to be around 16-40 ohm, perfectly easy to drive with anything. Headphones tend to start from 32 up to 600 ohm. A quick & dirty guide would be up to 70-80 ohm, you can use your phone, laptop, cheapo dedicated audio player (DAP). Beyond that you’d want a dedicated amplifier (expesive DAPs tend to have powerful amp in it).

    That’s not all though, because there’s also sensitivity, measured in dB SPL/mW. Sometimes db SPL/mV which I honestly still don’t understand that much. But, the rule of thumb is; the smaller the number in dB SPL/mW, the harder it is too drive. With the “ideal” sensitivity at 100 dB SPL/mW. Can go +/- 10. Sometimes -20.

    High impedance headphones were originated from around 1970s when manufacturers can finally make good sounding headphones, but the high price meant they were only viable for studio monitoring application. There are many entwined audio gears in a studio that by the time it reaches the headphones plug, there was gonna be a lot of static noise in the headphones. High impedance will filter out that noise.

    The high impedance = good sounding headphones paradigm today still pretty much comes from that 1970s principle. To filter out static noises that might be in the DAC and amplifier. But these days, you can get good sounding headphones with a much lower impedance.