Is the STAX SR-009D worth the upgrade from the Denon Ah-D7200?
Verdict
Clear upgrade
Going from the Denon Ah-D7200 to the STAX SR-009D buys you 10.0 points of HearWiki score - a clear step up that reviewers agree on rather than a marketing refresh. The gains are concentrated in sound (8.0 to 9.5). You do give up ground on value (7.0 to 5.5). On paper: drivers per side 1 to 2. Worth checking: weight goes 385 g to 594 g. That costs $1641 more, or about $164 per point of score - steep unless the specific gains above are ones you care about. If your current pair is worn out or the gains line up with how you listen, this one is worth the money.
What actually changes
Sub-scores both products have, on the same 0-10 scale. Bars extend right for a gain, left for a loss.
- Sound8.09.5
- Value7.05.5
Spec differences
Only where the two genuinely differ - everything they share is omitted.
| Spec | Ah-D7200 | SR-009D | Direction |
|---|---|---|---|
| Weight | 385 g | 594 g | |
| Drivers per side | 1 | 2 | |
| Driver | dynamic | push-pull electrostatic circular sound element | |
| Frequency response | 5 Hz - 55 kHz | 5 Hz - 42 kHz |
About this verdict
Direction matters here: this page answers "Ah-D7200 to SR-009D". The other direction is a separate question with a different answer. Scores blend published review verdicts across over-ear and shift as new reviews land, so a marginal call today may not be one next quarter.