Both are portable players, $1699 against $1399. This page puts them side by side on the only three things a maker can be held to — power, output impedance and noise — and then asks the question that actually matters: which headphones do they treat differently?
The iBasso DX340 reaches 100 dB on 566 of the 567 models here, the Sony NW-WM1AM2 on 552.
| Specification | iBasso DX340 | Sony NW-WM1AM2 |
|---|---|---|
| Power into 32Ω | 550 mW | 30 mW |
| Power into 150Ω | 117 mW | 6.4 mW |
| Power into 300Ω | 59 mW | 3.2 mW |
| Power into 600Ω | 29 mW | 1.6 mW |
| Output impedance | not published | 1 Ω unverified |
| Output noise | not published | 3 µV unverified |
| Price | $1699 | $1399 |
| Headphones it reaches 100 dB on out of 567 | 566 | 552 |
A figure marked not published is missing from the maker’s own material, which is not the same as being good or bad. Where one of these two publishes a number and the other does not, the comparison on that axis cannot be made at all — and saying so is more useful than guessing.
14 headphones reach 100 dB on the iBasso DX340 but not on the Sony NW-WM1AM2 — Beyerdynamic DT 880 Edition (600Ω), Beyerdynamic DT 990 Edition (600Ω), HiFiMAN HE-6se V2, 11 more.
552 of the 567 models here reach 100 dB on both. That is a power count and nothing more; whether either source suits a given headphone also depends on the two lines above.
Each has a page of its own with every power figure traced to what the maker published and a full headphone list: iBasso DX340 and Sony NW-WM1AM2. Or put either against your own headphones in the source comparison tool.