Description
The JBL Quantum 300 is a hybrid wired over-ear gaming headset with JBL QuantumSOUND Signature, QuantumSURROUND spatial audio for PC, 50 mm dynamic drivers, and a flip-up directional boom microphone. One important clarification: despite some JBL regional pages displaying “Hybrid Wireless Gaming Headset” in the page title, JBL’s official specification sheet identifies the Quantum 300 as a wired headset, not a Bluetooth/2.4 GHz wireless model. JBL
JBL Quantum 300 – Full Specifications
| Specification | Details |
|---|---|
| Brand | JBL by Harman |
| Model | JBL Quantum 300 |
| Product Type | Over-ear gaming headset |
| Connection Type | Wired |
| Primary Connection | 3.5 mm audio jack |
| USB Connection | Via included USB audio adapter |
| Driver Size | 50 mm dynamic drivers |
| Sound Technology | JBL QuantumSOUND Signature |
| Surround Sound | JBL QuantumSURROUND via QuantumENGINE on PC |
| Frequency Response | 20 Hz – 20 kHz |
| Maximum Input Power | 30 mW |
| Sensitivity | 100 dB SPL @ 1 kHz / 1 mW |
| Impedance | 32 ohms |
| Microphone Type | Flip-up voice-focus directional boom microphone |
| Microphone Pickup Pattern | Directional |
| Microphone Frequency Response | 100 Hz – 10 kHz |
| Microphone Sensitivity | -40 dBV @ 1 kHz/Pa |
| Microphone Size | 4 × 1.5 mm |
| Headset Cable Length | 1.2 m |
| USB Adapter Cable Length | 1.5 m |
| Headset Weight | 245 g |
| Ear Cushions | Memory foam |
| Headband | Lightweight fabric headband |
| Ear Cushions Removable | Yes |
| Colour | Black |
| PC Software | JBL QuantumENGINE |
The detailed acoustic and microphone specifications are confirmed in JBL’s official Quantum 300 technical datasheet. JBL
Platform Compatibility
The Quantum 300 works through its 3.5 mm connection with PC, PlayStation 4/5, Xbox One/Xbox Series X|S, Nintendo Switch, Mac, mobile devices and compatible VR systems. The included 3.5 mm-to-USB audio adapter can also be used with supported PCs, PlayStation systems and Macs. JBL
JBL QuantumSURROUND and QuantumENGINE customization are PC-based features. QuantumENGINE allows users to adjust surround settings, EQ, microphone settings and create personalized gaming profiles. JBL
What’s in the Box
The standard package includes 1 × JBL Quantum 300 headset, 1 × USB audio adapter, 1 × microphone windshield foam, Quick Start Guide, warranty card and safety documentation. JBL
Recommended Description for Quotation / Website
JBL Quantum 300 Hybrid Wired Over-Ear Gaming Headset – 50mm Dynamic Drivers, JBL QuantumSOUND Signature, QuantumSURROUND Spatial Sound, 20Hz–20kHz Frequency Response, Flip-Up Voice-Focus Directional Boom Microphone, 3.5mm Connectivity, USB Audio Adapter, JBL QuantumENGINE PC Software, Memory-Foam Ear Cushions, Multi-Platform Compatibility, Black. JBL
Note: If your supplier specifically described the product as “JBL Quantum 300 Hybrid Wireless”, I would recommend confirming the exact JBL part number/SKU before quoting it to your customer, because JBL’s technical datasheet specifies the Quantum 300 as hybrid wired, while other Quantum models provide true wireless connectivity.







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