Side by side comparison and review of Poly EncorePro 320, QD and Alpha Bravo GX2. Compare design, sound quality and other key specifications and features to simplify the choice of your perfect headphones. Our goal is to make it easier for you to decide on the headphones that will best meet your expectations by revealing the main differences between the products.
| DESIGN AND DIMENSIONS | Poly EncorePro 320, QD | Alpha Bravo GX2 |
|---|
| Product Type | Headset - wired - Quick Disconnect | Headset - wired - USB | |
|---|---|---|---|
| Series | 300 Series | - | |
| Recommended Use | Computer | Game console, portable electronics, computer |
| SOUND QUALITY | Poly EncorePro 320, QD | Alpha Bravo GX2 |
|---|
| Headphones Form Factor | On-ear | Full size | |
|---|---|---|---|
| Connectivity Technology | Wired | Wired | |
| Sound Output Mode | Stereo | Stereo | |
| Sound Effects | - | 7.1 Channel Virtual Surround Sound | |
| Frequency Response | 50 - 8000 Hz | 20 - 20000 Hz | Alpha Bravo GX2 offer a larger frequency range than Poly EncorePro 320, QD. |
| Sensitivity | - | 115 dB | |
| Impedance | 32 Ohm | 20 Ohm | |
| Max Sound Pressure | 118 dB | - | |
| Diaphragm | 28 mm | 50 mm | Alpha Bravo GX2 have a thicker diaphragm than Poly EncorePro 320, QD. |
| In-Cord Volume Control | Yes | - |
| MICROPHONE | Poly EncorePro 320, QD | Alpha Bravo GX2 |
|---|
| Form Factor | - | Headset microphone | |
|---|---|---|---|
| Type | Boom | Boom | |
| Microphone Operation Mode | Uni-directional | Omni-directional | |
| Noise Cancelling | - | Yes | Alpha Bravo GX2 microphone can cancel out ambient noise. |
| Frequency Response | - | 50 - 10000 Hz | |
| Sensitivity | - | -36 dB |
| REMOTE CONTROL | Poly EncorePro 320, QD | Alpha Bravo GX2 |
|---|
| Controls | Mute, volume | - |
|---|
| CABLE | Poly EncorePro 320, QD | Alpha Bravo GX2 |
|---|
| Cable Type | Headset cable | USB cable - 2 m | |
|---|---|---|---|
| Cable Length | - | 2 m |
| FEATURES | Poly EncorePro 320, QD | Alpha Bravo GX2 |
|---|
| Additional Functions | - | LED backlight (blue) |
|---|
| CONNECTIONS | Poly EncorePro 320, QD | Alpha Bravo GX2 |
|---|
| Connector Type | Headset (Quick Disconnect) | USB (4 PIN USB Type A) |
|---|
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