JBL Tour One M2 vs Sennheiser HD 660S2
The Verdict
JBL Tour One M2 and Sennheiser HD 660S2 serve completely different audiences with their distinct design philosophies. The JBL delivers active noise cancellation with 30 hours of battery life (50 hours with ANC off), quick 10-minute charging yielding 5 hours of playback, and wireless convenience via Bluetooth 5.3 with multipoint pairing. Its 40mm drivers support LDAC hi-res audio, spatial sound with head tracking, and hearing personalization through Personi-Fi 2.0, making it ideal for travel and everyday listening. The Sennheiser HD 660S2 is a wired audiophile headphone featuring 42mm drivers with 300-ohm impedance designed specifically for dedicated amplifiers and DAC equipment. Its open-back design provides wider soundstage than closed-back alternatives, handmade construction in Germany, and replaceable cables and pads ensure longevity. Sound quality favors the Sennheiser for critical listening with proper amplification, but it requires a wired source and external amp investment, limiting versatility. The JBL excels in real-world usability with wireless flexibility, active noise cancellation, and proven sound quality without additional gear. Choose JBL if you need wireless, portable, feature-rich performance. Choose Sennheiser only if you're building an audiophile setup with dedicated amplification and prioritize open-back soundstage over convenience.
Who Should Buy
Buy the JBL Tour One M2 if…
- →Strong feature set including LDAC and spatial audio
- →Effective adaptive ANC
- →Comfortable and foldable design
Buy the Sennheiser HD 660S2 if…
- →Reference-grade sound with improved bass over the original HD 660S
- →Both 6.35mm and 4.4mm balanced cables included in the box
- →Open-back design creates a wide, natural soundstage
Category Scores
Pros & Cons
JBL Tour One M2
Pros
- Strong feature set including LDAC and spatial audio
- Effective adaptive ANC
- Comfortable and foldable design
- Good multipoint implementation
Cons
- Sound signature divisive out of the box
- Companion app can be buggy
- Build quality feels plasticky
- Microphone quality below class leaders
Sennheiser HD 660S2
Pros
- Reference-grade sound with improved bass over the original HD 660S
- Both 6.35mm and 4.4mm balanced cables included in the box
- Open-back design creates a wide, natural soundstage
- Lightweight at 260 g for an audiophile over-ear
- Replaceable parts make it a long-term investment
Cons
- 300-ohm impedance requires a dedicated amp/DAC to drive properly
- Wired only — no Bluetooth option
- Open-back leaks significant sound — not for shared spaces
- $499 is steep for headphones that need additional equipment
Full Specifications
| Spec | JBL Tour One M2 | Sennheiser HD 660S2 |
|---|---|---|
| Active Noise Cancelling | ||
| Type | over-ear | over-ear |
| Weight | 268 g | 260 g |
| Battery | ||
| Battery life | 30 hours ANC on (50 hours ANC off) | N/A (wired) |
| Charging | USB-C, 10 min = 5 hours quick charge | N/A |
| Drivers | 40mm dynamic | 42mm dynamic transducer, 300 ohm impedance |
| Features | True Adaptive Noise Cancelling 2.0, Spatial Sound with head tracking, Personi-Fi 2.0 hearing personalization, Multipoint pairing, LDAC hi-res audio | Open-back audiophile design, 300-ohm impedance for dedicated amp/DAC use, Balanced 4.4mm Pentaconn cable included, Replaceable ear pads and cables, Handmade in Germany |
| Connectivity | ||
| Wired option | ||
| Codecs | SBC, AAC, LDAC | |
| Bluetooth | 5.3 | None (wired only) |
| Multipoint | ||
| Water Resistance | None | None |
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This comparison is based on verified manufacturer specifications covering display, performance, camera, battery, and build quality. Scores are generated by analyzing specs across weighted categories on a 10-point scale. Learn more about our methodology.
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