In depth comparison and review of Sennheiser PXC 550-II and EPOS I SENNHEISER ADAPT 561 II. Compare design, audio features, functions and other important specifications to easily choose the right headphones for you. Our goal is to help you uncover differences between the products and find the headphones that will best fit your needs.
| DESIGN AND DIMENSIONS | Sennheiser PXC 550-II | EPOS I SENNHEISER ADAPT 561 II |
|---|
| Product Type | Headphones - Bluetooth - wireless | Headset - Bluetooth - wireless | |
|---|---|---|---|
| Series | - | ADAPT 500 Series | |
| Height | 17.4 cm | - | |
| Width | 13.6 cm | - | |
| Depth | 6.3 cm | - | |
| Weight | 227 g | 232 g | Sennheiser PXC 550-II are lighter than Sennheiser PXC 550-II headphones. |
| Earpad Material | - | Plush, textured fabric | |
| Recommended Use | Portable electronics | Portable electronics, computer | |
| Bluetooth Range (Operating Distance) | - | 25 m |
| SOUND QUALITY | Sennheiser PXC 550-II | EPOS I SENNHEISER ADAPT 561 II |
|---|
| Headphones Form Factor | Full size | On-ear | |
|---|---|---|---|
| Headphones Technology | Dynamic | Dynamic | |
| Ear Cups Type | - | Closed | |
| Adjustable Headband | Yes | - | |
| Foldable | Yes | - | Sennheiser PXC 550-II can be folded. |
| Connectivity Technology | Wireless | Wireless | |
| Wireless Technology | Bluetooth | Bluetooth | |
| Bluetooth Version | Bluetooth 5.0 | Bluetooth 5.0 | Both headphones have the same Bluetooth version. |
| Bluetooth Profiles | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | - | |
| Bluetooth Audio Codec | SBC, AAC, aptX, apt-X LL | SBC, AAC | |
| Active Noise Cancelling | Yes | Yes | Both headphones are equipped with active noice cancellation. |
| Active Noise Cancelling Technology | - | Hybrid ANC | |
| Sound Output Mode | Stereo | Stereo | |
| Sound Effects | - | EPOS Voice | |
| Frequency Response | 17 - 23000 Hz | 20 - 20000 Hz | Sennheiser PXC 550-II offer a larger frequency range than EPOS I SENNHEISER ADAPT 561 II. |
| Total Harmonic Distortion (THD) | <0.5% | <0.3% | EPOS I SENNHEISER ADAPT 561 II have lower total harmonic distortion than Sennheiser PXC 550-II. |
| Sensitivity | 110 dB | - | |
| Impedance | 490 Ohm | 32 Ohm | |
| Max Sound Pressure | - | 108 dB | |
| Diaphragm | 32 mm | - | |
| Features | - | Audio prompts |
| MICROPHONE | Sennheiser PXC 550-II | EPOS I SENNHEISER ADAPT 561 II |
|---|
| Form Factor | Built-in | Headset microphone | |
|---|---|---|---|
| Type | - | Boom | |
| Microphone Operation Mode | - | Beamforming, MEMS-directional | |
| Frequency Response | 50 - 10000 Hz | 100 - 10000 Hz | Sennheiser PXC 550-II offer a larger microphone frequency range than EPOS I SENNHEISER ADAPT 561 II. |
| Sensitivity | -34 dBV/Pascal | - | |
| Microphones Included | 3 | 2 | Sennheiser PXC 550-II have a built-in microphone. |
| REMOTE CONTROL | Sennheiser PXC 550-II | EPOS I SENNHEISER ADAPT 561 II |
|---|
| Controls | Mute, volume, answer/end, hold, play/pause, next/previous track | - |
|---|
| CABLE | Sennheiser PXC 550-II | EPOS I SENNHEISER ADAPT 561 II |
|---|
| Cable Type | USB charge cable Audio cable |
USB-C to USB-C cable - detachable | |
|---|---|---|---|
| Detachable Cable | Yes | - |
| FEATURES | Sennheiser PXC 550-II | EPOS I SENNHEISER ADAPT 561 II |
|---|
| Features | - | EPOS ActiveGard | |
|---|---|---|---|
| Internet of Things (IoT) Compatible | Yes | - | |
| Intelligent Assistant | Siri, Google Assistant, Alexa | - | |
| Additional Functions | Touch panel | - |
| BATTERY AND CHARGING | Sennheiser PXC 550-II | EPOS I SENNHEISER ADAPT 561 II |
|---|
| Battery Type | Headphone battery rechargeable - lithium | Headset battery rechargeable | |
|---|---|---|---|
| Battery Life | 30 hour(s) | - | |
| Battery Life Details | Continuous playback (noise cancelling ON / cable connection): up to 30 hours Continuous playback (noise cancelling ON / Bluetooth): up to 20 hours |
Continuous playback (noise cancelling OFF): up to 46 hours Continuous talk (noise cancelling OFF): up to 41 hours Continuous playback (noise cancelling ON): up to 24 hours Continuous talk (noise cancelling ON): up to 24 hours |
|
| Standby Time | - | 81 day | |
| Charging Time | 3 hour(s) | 220 min | Sennheiser PXC 550-II recharge faster than Sennheiser PXC 550-II. |
| CONNECTIONS | Sennheiser PXC 550-II | EPOS I SENNHEISER ADAPT 561 II |
|---|
| Connector Type | Headphones (mini-phone stereo 3.5 mm) USB (micro-USB) |
- |
|---|
| OTHERS | Sennheiser PXC 550-II | EPOS I SENNHEISER ADAPT 561 II |
|---|
| Included Accessories | Carrying case, airplane adapter | Carrying case, BTD 800 USB-C dongle, USB-C to USB-C cable | |
|---|---|---|---|
| Software Certification | - | Zoom Certified, Certified for Microsoft Teams, Optimised for UC, Optimised for Google Meet | |
| Compliant Standards | MFI | - | |
| Service & Support | Limited warranty - 2 years | Limited warranty - 2 years |
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