Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | JBL - Link Music | Sony - HT-A9 |
|---|---|---|
| Output | 20 W | 504 W |
| Dolby Atmos | false | true |
Between the Link Music and HT-A9, the Link Music comes out ahead in several specs, while the HT-A9 wins on output / dolby atmos. Overall, the Link Music scores 49.8 and the HT-A9 scores 71.1 on our Mars Score.
Which should you buy?
The HT-A9 is the clear pick on raw spec strength, leading by 21.3 points on the Mars Score. The margin is wide enough that the underdog only makes sense if its individual strengths line up with what you specifically need.
The Link Music does not pull ahead on any single popular-comparison spec — its strengths sit in the spec-table groups rather than the headline advantages.
Pick the HT-A9 if you care most about output / dolby atmos. Its strongest claims are output, dolby atmos. The single most decisive one: Output — 2420.00% more. 504 W vs 20 W.
Both ship with comparable voice assistant, matter / thread, so those specs do not separate the two — focus on the differences below.
Bottom line: the HT-A9 is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Which should you buy: JBL - Link Music or Sony - HT-A9?
Sony - HT-A9 leads the current Mars Score by 21.3 points.The more useful decision is the trade-off behind that result: compare output, dolby atmos against the way you will actually use the product.
Choose JBL - Link Music if…
JBL - Link Music does not lead a decisive measured field here, so choose it for price, ecosystem, design, or availability when those matter more to you.
Choose Sony - HT-A9 if…
Sony - HT-A9 has the measurable edge on output w, has dolby atmos.
This is a structured comparison of the published catalog values. It is not a claim of identical real-world performance across every workload; use the linked spec drill-downs and methodology page to inspect the inputs.
Why JBL - Link Music wins
- No decisive advantages.
Why Sony - HT-A9 wins
- ▲Output — 2420.00% more. 504 W vs 20 W.
- ▲Has Dolby Atmos.
Spec comparison
Audio
| Spec | JBL - Link Music | Sony - HT-A9 |
|---|---|---|
| Output | 20 W | 504 Wlead |
| Stereo pairingⓘ | true | true |
| Dolby Atmosⓘ | false | truelead |
| Built-in display | false | false |
Assistant & Smart Home
| Spec | JBL - Link Music | Sony - HT-A9 |
|---|---|---|
| Voice assistant | Google Assistant | Google Assistant |
| Matter / Thread | false | false |
| Zigbee hub | false | false |