In depth comparison and review of Koss UR 23i and KEF Porsche Design Space One. 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 | Koss UR 23i | KEF Porsche Design Space One |
|---|
| Product Type | Headphones - wired - 3.5 mm jack | Headphones - Bluetooth - wireless, wired - 3.5 mm jack | |
|---|---|---|---|
| Height | - | 8.2 cm | |
| Width | - | 19.5 cm | |
| Depth | - | 17 cm | |
| Weight | - | 330 g | |
| Colour | White | Black | Titanium | |
| Recommended Use | Portable electronics | Portable electronics |
| SOUND QUALITY | Koss UR 23i | KEF Porsche Design Space One |
|---|
| Headphones Form Factor | Full size | Full size | |
|---|---|---|---|
| Connectivity Technology | Wired | Wireless, wired | |
| Wireless Technology | - | Bluetooth | |
| Bluetooth Version | - | Bluetooth 4.1 | |
| Active Noise Cancelling | - | Yes | KEF Porsche Design Space One are equipped with active noice cancellation. |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 20 - 20000 Hz | 20 - 20000 Hz | Both headphones offer the same frequency response. |
| Max Input Power | - | 12 mW | |
| Sensitivity | 94 dB | 94 dB | Both headphones offer the same sensitivity. |
| Impedance | 34 Ohm | 16 Ohm | |
| Diaphragm | - | 40 mm | |
| Magnet Material | - | Neodymium | |
| Features | - | Voice control, Bluetooth aptX technology |
| MICROPHONE | Koss UR 23i | KEF Porsche Design Space One |
|---|
| Form Factor | - | Built-in | |
|---|---|---|---|
| Type | On-cable | - |
| CABLE | Koss UR 23i | KEF Porsche Design Space One |
|---|
| Cable Type | Headphones cable - 1.22 m | Headphones cable - detachable | |
|---|---|---|---|
| Detachable Cable | - | Yes |
| BATTERY AND CHARGING | Koss UR 23i | KEF Porsche Design Space One |
|---|
| Battery Type | - | Headphone battery rechargeable - Lithium Ion | |
|---|---|---|---|
| Battery Capacity | - | 850 mAh | |
| Battery Life | - | 110 hour(s) |
| CONNECTIONS | Koss UR 23i | KEF Porsche Design Space One |
|---|
| Connector Type | Headphones (mini-phone stereo 3.5 mm 4-pole) | Headphones (mini-phone stereo 3.5 mm 4-pole) |
|---|
| OTHERS | Koss UR 23i | KEF Porsche Design Space One |
|---|
| Service & Support | Limited warranty - lifetime | - |
|---|
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