In depth comparison and review of JBL Quantum 300 and Poly EncorePro 520V. 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 | Poly EncorePro 520V |
|---|
| Product Type | Headset - wired - USB, 3.5 mm jack | Headset - wired - 3.5 mm jack | |
|---|---|---|---|
| Series | - | EncorePro 500 series | |
| Height | - | 6.7 cm | |
| Width | - | 11.1 cm | |
| Depth | - | 14.9 cm | |
| Weight | 245 g | 74 g | Poly EncorePro 520V are lighter than JBL Quantum 300 headphones. |
| Colour | Black | Black | |
| Earpad Material | Memory foam | Artificial leather |
| SOUND QUALITY | JBL Quantum 300 | Poly EncorePro 520V |
|---|
| Headphones Form Factor | Full size | On-ear | |
|---|---|---|---|
| Connectivity Technology | Wired | Wired | |
| Active Noise Cancelling | - | Yes | Poly EncorePro 520V are equipped with active noice cancellation. |
| Active Noise Cancelling Technology | - | SoundGuard DIGITAL | |
| Sound Output Mode | Stereo | - | |
| Frequency Response | 20 - 20000 Hz | - | |
| Max Input Power | 30 mW | - | |
| Sensitivity | 100 dB | - | |
| Impedance | 32 Ohm | - | |
| Diaphragm | - | 5.6 mm | |
| Signal-To-Noise Ratio | - | 50 dB | |
| Features | JBL Quantum SURROUND | - |
| MICROPHONE | JBL Quantum 300 | Poly EncorePro 520V |
|---|
| Form Factor | Detachable headset microphone | - | |
|---|---|---|---|
| Type | Boom | Boom | |
| Microphone Operation Mode | - | Omni-directional | |
| Noise Cancelling | - | Yes | Poly EncorePro 520V microphone can cancel out ambient noise. |
| Frequency Response | 100 - 10000 Hz | 20 - 16000 Hz | Poly EncorePro 520V offer a larger microphone frequency range than JBL Quantum 300. |
| Sensitivity | -40 dB | 40 dB | |
| Sensitivity Margin | - | +/- 3dB |
| CABLE | JBL Quantum 300 | Poly EncorePro 520V |
|---|
| Cable Length | - | 78.5 cm |
|---|
| FEATURES | JBL Quantum 300 | Poly EncorePro 520V |
|---|
| Features | - | Boom mic length 135mm, 290° rotatable microphone |
|---|
| CONNECTIONS | JBL Quantum 300 | Poly EncorePro 520V |
|---|
| Connector Type | Headphones (mini-phone stereo 3.5 mm 4-pole) | Headset (mini-phone 3.5mm) |
|---|
| OTHERS | JBL Quantum 300 | Poly EncorePro 520V |
|---|
| Included Accessories | USB adapter | - | |
|---|---|---|---|
| Software Certification | - | Certified for Skype for Business, UC certified | |
| Supported Host Device OS | - | macOS, Windows | |
| Service & Support | 1-year warranty | Limited warranty - 2 years |
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