A search revealed this table, referring to the 2016 original vs. the then just changed 2nd version:Okay, so you've got new drivers rated at 124 Ohms. I've also had a driver replacement for my 200-Ohm set, and the replacement definitely showed improved sensitivity.
I was actually referring to the initial drivers rated at 100 Ohms. I had the chance to try them out, and they were more difficult to drive.
https://headphone.guru/the-audeze-lcd-4-update-the-best-just-got-better/
The differences in specifications can be seen in the table below:
Original LCD-4 | LCD-4 | |
Style | Open Circumaural | Open Circumaural |
Transducer Type | Planar Magnetic | Planar Magnetic |
Magnetic Arrays | Double Fluxor Magnets | Double Fluxor Magnets |
Magnetic Type | Neodymium | Neodymium |
Transducer Size | 106 mm | 106 mm |
Maximum Power Handling | 15 W (for 200 ms) | 15 W (for 200 ms) |
Flux Density | 1.5 Tesla | 1.5 Tesla |
Sound Pressure Level | >130 dB with 15 W | >130 dB with 15 W |
Frequency Response | 5 Hz – 20 kHz (extended out to 50 kHz | 5 Hz – 20 kHz (extended out to 50 kHz |
Total Harmonic Distortion | <1% through entire frequency range | <1% through entire frequency range |
Impedance | 100 ohms | 200 ohms |
Efficiency | 100 dB / 1 mW | 97 dB / 1mW |
Optimal Power Requirement | 1 – 4 W | 1 – 4 W |
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