Detailed comparison and review of Koss UR 23i and KEF M500. With our comprehensive overview, you can simply compare design, sound quality, but also other key features of both headphones and easily decide which ones are the right choice for you. Our goal is to help you identify the main differences between products and find the headphones that best fit your needs and expectations.
| DESIGN AND DIMENSIONS | Koss UR 23i | KEF M500 |
|---|
| Product Type | Headphones - wired - 3.5 mm jack | Headset - wired | |
|---|---|---|---|
| Weight | - | 208 g | |
| Colour | White | Black | Classic | |
| Body Material | - | Aluminium alloy | |
| Recommended Use | Portable electronics | Portable electronics, phone |
| SOUND QUALITY | Koss UR 23i | KEF M500 |
|---|
| Headphones Form Factor | Full size | On-ear | |
|---|---|---|---|
| Adjustable Headband | - | Yes | |
| Foldable | - | Yes | KEF M500 can be folded. |
| Connectivity Technology | Wired | Wired | |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 20 - 20000 Hz | 20 - 20000 Hz | Both headphones offer the same frequency response. |
| Max Input Power | - | 30 mW | |
| Sensitivity | 94 dB | 103 dB | KEF M500 have higher sensitivity than Koss UR 23i. |
| Impedance | 34 Ohm | 32 Ohm | |
| Diaphragm | - | 40 mm | |
| Magnet Material | - | Neodymium | |
| In-Cord Volume Control | - | Yes |
| MICROPHONE | Koss UR 23i | KEF M500 |
|---|
| Type | On-cable | On-cable |
|---|
| REMOTE CONTROL | Koss UR 23i | KEF M500 |
|---|
| Controls | - | Volume, answer/end, play/pause, next/previous track |
|---|
| CABLE | Koss UR 23i | KEF M500 |
|---|
| Cable Type | Headphones cable - 1.22 m | 2 x headset cable - 1.3 m | |
|---|---|---|---|
| Plated Connector | - | Gold |
| CONNECTIONS | Koss UR 23i | KEF M500 |
|---|
| Connector Type | Headphones (mini-phone stereo 3.5 mm 4-pole) | Headset (mini-phone stereo 3.5 mm) |
|---|
| OTHERS | Koss UR 23i | KEF M500 |
|---|
| Included Accessories | - | Protective case, in-flight plug adapter, 3.5 mm to 6.3 mm adapter | |
|---|---|---|---|
| Service & Support | Limited warranty - lifetime | Limited warranty - 1 year |
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