Side by side comparison and review of Koss UR 23i and Sony MDR XB950B1. 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 | Koss UR 23i | Sony MDR XB950B1 |
|---|
| Product Type | Headphones - wired - 3.5 mm jack | Headphones - Bluetooth - wireless - NFC | |
|---|---|---|---|
| Weight | - | 280 g | |
| Colour | White | Black | Black | |
| Recommended Use | Portable electronics | Portable electronics | |
| Bluetooth Range (Operating Distance) | - | 10 m |
| SOUND QUALITY | Koss UR 23i | Sony MDR XB950B1 |
|---|
| Headphones Form Factor | Full size | Full size | |
|---|---|---|---|
| Headphones Technology | - | Dynamic | |
| Ear Cups Type | - | Closed | |
| Connectivity Technology | Wired | Wireless | |
| Wireless Technology | - | Bluetooth | |
| Bluetooth Version | - | Bluetooth 4.1 | |
| Bluetooth Profiles | - | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | |
| Bluetooth Audio Codec | - | SBC, AAC, aptX | |
| Sound Output Mode | Stereo | Stereo | |
| Sound Effects | - | Extra Bass | |
| Frequency Response | 20 - 20000 Hz | 3 - 28000 Hz | Sony MDR XB950B1 offer a larger frequency range than Koss UR 23i. |
| Sensitivity | 94 dB | 105 dB/mW | Sony MDR XB950B1 have higher sensitivity than Koss UR 23i. |
| Impedance | 34 Ohm | 32 Ohm | |
| Diaphragm | - | 40 mm |
| MICROPHONE | Koss UR 23i | Sony MDR XB950B1 |
|---|
| Form Factor | - | Built-in | |
|---|---|---|---|
| Type | On-cable | - | |
| Microphone Technology | - | Electret condenser | |
| Microphone Operation Mode | - | Omni-directional | |
| Frequency Response | - | 50 - 8000 Hz |
| REMOTE CONTROL | Koss UR 23i | Sony MDR XB950B1 |
|---|
| Controls | - | Volume control |
|---|
| CABLE | Koss UR 23i | Sony MDR XB950B1 |
|---|
| Cable Type | Headphones cable - 1.22 m | Headphones cable - detachable - L shaped - 1.2 m Micro-USB cable - 50 cm |
|
|---|---|---|---|
| Cable Length | - | 1.2 m | |
| Detachable Cable | - | Yes |
| BATTERY AND CHARGING | Koss UR 23i | Sony MDR XB950B1 |
|---|
| Battery Type | - | Headphone battery rechargeable | |
|---|---|---|---|
| Battery Life | - | 18 hour(s) | |
| Standby Time | - | 200 hours | |
| Charging Time | - | 4 hour(s) |
| WIRELESS LINK | Koss UR 23i | Sony MDR XB950B1 |
|---|
| Radio Frequency Range | - | 2.4 - 2.4835GHz |
|---|
| CONNECTIONS | Koss UR 23i | Sony MDR XB950B1 |
|---|
| Connector Type | Headphones (mini-phone stereo 3.5 mm 4-pole) | USB (power only) (5 pin Micro-USB Type B (power only)) Headphones (mini-phone stereo 3.5 mm 4-pole) |
|---|
| OTHERS | Koss UR 23i | Sony MDR XB950B1 |
|---|
| Compatibility | - | iPhone, iPod, Android phone | |
|---|---|---|---|
| Service & Support | Limited warranty - lifetime | - |
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