In depth comparison and review of JBL Quantum 300 and Poly EncorePro 720D. 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 720D |
|---|
| Product Type | Headset - wired - USB, 3.5 mm jack | Headset - wired - USB-A | |
|---|---|---|---|
| Series | - | EncorePro 700 Series | |
| Weight | 245 g | 78 g | Poly EncorePro 720D are lighter than JBL Quantum 300 headphones. |
| Colour | Black | Black | |
| Earpad Material | Memory foam | Artificial leather |
| SOUND QUALITY | JBL Quantum 300 | Poly EncorePro 720D |
|---|
| Headphones Form Factor | Full size | On-ear binaural | |
|---|---|---|---|
| Connectivity Technology | Wired | Wired | |
| Sound Output Mode | Stereo | - | |
| Frequency Response | 20 - 20000 Hz | - | |
| Max Input Power | 30 mW | - | |
| Sensitivity | 100 dB | - | |
| Impedance | 32 Ohm | - | |
| Diaphragm | - | 28 mm | |
| Features | JBL Quantum SURROUND | SoundGuard Technology |
| MICROPHONE | JBL Quantum 300 | Poly EncorePro 720D |
|---|
| Form Factor | Detachable headset microphone | - | |
|---|---|---|---|
| Type | Boom | Boom | |
| Microphone Operation Mode | - | Omni-directional | |
| Noise Cancelling | - | Yes | Poly EncorePro 720D microphone can cancel out ambient noise. |
| Noise Cancelling Technology | - | Passive noise cancellation (PNC) | |
| Frequency Response | 100 - 10000 Hz | 100 - 6800 Hz | JBL Quantum 300 offer a larger microphone frequency range than Poly EncorePro 720D. |
| Sensitivity | -40 dB | - |
| CABLE | JBL Quantum 300 | Poly EncorePro 720D |
|---|
| Cable Length | - | 89 cm |
|---|
| FEATURES | JBL Quantum 300 | Poly EncorePro 720D |
|---|
| Features | - | Quick Disconnect, 290° rotatable microphone, boom mic length 120-145 mm |
|---|
| CONNECTIONS | JBL Quantum 300 | Poly EncorePro 720D |
|---|
| Connector Type | Headphones (mini-phone stereo 3.5 mm 4-pole) | USB (USB Type-A) |
|---|
| OTHERS | JBL Quantum 300 | Poly EncorePro 720D |
|---|
| Included Accessories | USB adapter | - | |
|---|---|---|---|
| TAA Compliant | - | Yes | |
| Service & Support | 1-year warranty | - |
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