In depth comparison and review of JBL Quantum 300 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 | JBL Quantum 300 | EPOS I SENNHEISER ADAPT 561 II |
|---|
| Product Type | Headset - wired - USB, 3.5 mm jack | Headset - Bluetooth - wireless | |
|---|---|---|---|
| Series | - | ADAPT 500 Series | |
| Weight | 245 g | 232 g | EPOS I SENNHEISER ADAPT 561 II are lighter than JBL Quantum 300 headphones. |
| Colour | Black | - | |
| Earpad Material | Memory foam | Plush, textured fabric | |
| Recommended Use | - | Portable electronics, computer | |
| Bluetooth Range (Operating Distance) | - | 25 m |
| SOUND QUALITY | JBL Quantum 300 | EPOS I SENNHEISER ADAPT 561 II |
|---|
| Headphones Form Factor | Full size | On-ear | |
|---|---|---|---|
| Headphones Technology | - | Dynamic | |
| Ear Cups Type | - | Closed | |
| Connectivity Technology | Wired | Wireless | |
| Wireless Technology | - | Bluetooth | |
| Bluetooth Version | - | Bluetooth 5.0 | |
| Bluetooth Audio Codec | - | SBC, AAC | |
| Active Noise Cancelling | - | Yes | EPOS I SENNHEISER ADAPT 561 II are equipped with active noice cancellation. |
| Active Noise Cancelling Technology | - | Hybrid ANC | |
| Sound Output Mode | Stereo | Stereo | |
| Sound Effects | - | EPOS Voice | |
| Frequency Response | 20 - 20000 Hz | 20 - 20000 Hz | Both headphones offer the same frequency response. |
| Max Input Power | 30 mW | - | |
| Total Harmonic Distortion (THD) | - | <0.3% | |
| Sensitivity | 100 dB | - | |
| Impedance | 32 Ohm | 32 Ohm | |
| Max Sound Pressure | - | 108 dB | |
| Features | JBL Quantum SURROUND | Audio prompts |
| MICROPHONE | JBL Quantum 300 | EPOS I SENNHEISER ADAPT 561 II |
|---|
| Form Factor | Detachable headset microphone | Headset microphone | |
|---|---|---|---|
| Type | Boom | Boom | |
| Microphone Operation Mode | - | Beamforming, MEMS-directional | |
| Frequency Response | 100 - 10000 Hz | 100 - 10000 Hz | The frequency response of the microphones in both headphones is the same. |
| Sensitivity | -40 dB | - | |
| Microphones Included | - | 2 |
| CABLE | JBL Quantum 300 | EPOS I SENNHEISER ADAPT 561 II |
|---|
| Cable Type | - | USB-C to USB-C cable - detachable |
|---|
| FEATURES | JBL Quantum 300 | EPOS I SENNHEISER ADAPT 561 II |
|---|
| Features | - | EPOS ActiveGard |
|---|
| BATTERY AND CHARGING | JBL Quantum 300 | EPOS I SENNHEISER ADAPT 561 II |
|---|
| Battery Type | - | Headset battery rechargeable | |
|---|---|---|---|
| Battery Life Details | - | 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 | - | 220 min |
| CONNECTIONS | JBL Quantum 300 | EPOS I SENNHEISER ADAPT 561 II |
|---|
| Connector Type | Headphones (mini-phone stereo 3.5 mm 4-pole) | - |
|---|
| OTHERS | JBL Quantum 300 | EPOS I SENNHEISER ADAPT 561 II |
|---|
| Included Accessories | USB 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 | |
| Service & Support | 1-year warranty | Limited warranty - 2 years |
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