In depth comparison and review of August EP650B and Sennheiser HMDC 27. 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 | August EP650B | Sennheiser HMDC 27 |
|---|
| Product Type | Headphones - Bluetooth - wireless - NFC - USB, 3.5 mm jack | Headset - wired | |
|---|---|---|---|
| Height | 17.66 cm | - | |
| Width | 18.86 cm | - | |
| Depth | 7.1 cm | - | |
| Weight | 235 g | 240 g | August EP650B are lighter than August EP650B headphones. |
| Recommended Use | Portable electronics, computer | Professional audio | |
| Bluetooth Range (Operating Distance) | 10 m | - |
| SOUND QUALITY | August EP650B | Sennheiser HMDC 27 |
|---|
| Headphones Form Factor | Full size | Full size | |
|---|---|---|---|
| Headphones Technology | - | Dynamic | |
| Ear Cups Type | - | Closed | |
| Foldable | Yes | - | August EP650B can be folded. |
| Connectivity Technology | Wireless | Wired | |
| Wireless Technology | Bluetooth | - | |
| Bluetooth Version | Bluetooth 4.1 | - | |
| Active Noise Cancelling | - | Yes | Sennheiser HMDC 27 are equipped with active noice cancellation. |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 60 - 20000 Hz | 8 - 18000 Hz | August EP650B offer a larger frequency range than Sennheiser HMDC 27. |
| Total Harmonic Distortion (THD) | 1% | <0.1% | Sennheiser HMDC 27 have lower total harmonic distortion than August EP650B. |
| Max Sound Pressure | - | 128 dB | |
| Diaphragm | 50 mm | - | |
| Signal-To-Noise Ratio | 85 dB | - | |
| Features | Bluetooth aptX technology | - |
| MICROPHONE | August EP650B | Sennheiser HMDC 27 |
|---|
| Form Factor | Built-in | - | |
|---|---|---|---|
| Type | - | Boom | |
| Microphone Technology | - | Dynamic | |
| Microphone Operation Mode | - | Hypercardioid | |
| Frequency Response | - | 40 - 18000 Hz |
| CABLE | August EP650B | Sennheiser HMDC 27 |
|---|
| Cable Type | Headphones cable - detachable | - |
|---|
| FEATURES | August EP650B | Sennheiser HMDC 27 |
|---|
| Features | - | EPOS ActiveGard |
|---|
| BATTERY AND CHARGING | August EP650B | Sennheiser HMDC 27 |
|---|
| Battery Type | Headphone battery rechargeable - Lithium Ion | - | |
|---|---|---|---|
| Battery Capacity | 220 mAh | - | |
| Battery Life | 10 hour(s) | - | |
| Standby Time | 720 hours | - | |
| Charging Time | 2 hour(s) | - |
| CONNECTIONS | August EP650B | Sennheiser HMDC 27 |
|---|
| Connector Type | Headphones (mini-phone stereo 3.5 mm) USB |
- |
|---|
| OTHERS | August EP650B | Sennheiser HMDC 27 |
|---|
| Included Accessories | - | Wind screen, cable clip, headband padding | |
|---|---|---|---|
| Compatibility | iPhone, iPad, iPod, Android phone | - |
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