The issue with this is that due to mechanical resonance, the impedance is often high at around 100hz for many open back headphones. The main benefit of this has to do with the fact that high output impedance lowers power output, but it lowers it much more for low impedance loads than high impedance loads. For example, Benchmark dac 3 - 0.11 ohms, rme adi 2 dac - 0.1 ohm. So what you'll notice on a lot of good audio gear is the output impedance spec is really low on the headphone output. Tldr - low output impedance that you get with headphone amps is good. TV and gadgets: TCL 50EP680 50" 4K LED + Sharp HT-SB100 75W RMS - Samsung Galaxy Tab A8 10.1" - OnePlus 9 256GB - Olymous Cameda C-160 - GameBoy Color.Networking: Asus RT-N18U - SpeedPort Plus - 35/7 Mbps vDSL - TP-Link TL-WA850RE - TP-Link 5-port 1Gbps switch.Peripherals: LG 32GK650F - Philips 226VL - Logitech G Pro X Superlight with Tiger Ice - White Shark Spartan X (TKL) - EndGame Gear MPC890 - Genius HF 1250B - Akliam PD4 - Sennheiser HD 560s - Truthear Zero - QKZ x HBB - 7Hz Salnotes Zero - Logitech C270 - Behringer PS400 - BM700 - Colormunki Smile - Speedlink Torid - Jysk Stenderup - LG 24x External DVD writer - Konig smart card reader.
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