Side by side comparison and review of Koss UR 23i and Sony MDR 1000X. 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 1000X |
|---|
| Product Type | Headphones - wired - 3.5 mm jack | Headphones - Bluetooth - wireless - NFC | |
|---|---|---|---|
| Weight | - | 275 g | |
| Colour | White | Black | Black | Beige | |
| Recommended Use | Portable electronics | Portable electronics | |
| Bluetooth Range (Operating Distance) | - | 10 m |
| SOUND QUALITY | Koss UR 23i | Sony MDR 1000X |
|---|
| Headphones Form Factor | Full size | Full size | |
|---|---|---|---|
| Headphones Technology | - | Dynamic | |
| Ear Cups Type | - | Closed | |
| Foldable | - | Yes | Sony MDR 1000X can be folded. |
| 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), Low Complexity Subband Coding (SBC) | |
| Active Noise Cancelling | - | Yes | Sony MDR 1000X are equipped with active noice cancellation. |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 20 - 20000 Hz | 4 - 40000 Hz | Sony MDR 1000X offer a larger frequency range than Koss UR 23i. |
| Sensitivity | 94 dB | 103 dB/mW | Sony MDR 1000X have higher sensitivity than Koss UR 23i. |
| Impedance | 34 Ohm | 46 Ohm | |
| Diaphragm | - | Liquid crystal polymer - 40 mm | |
| Magnet Material | - | Neodymium |
| MICROPHONE | Koss UR 23i | Sony MDR 1000X |
|---|
| Type | On-cable | - |
|---|
| REMOTE CONTROL | Koss UR 23i | Sony MDR 1000X |
|---|
| Controls | - | Volume control |
|---|
| CABLE | Koss UR 23i | Sony MDR 1000X |
|---|
| Cable Type | Headphones cable - 1.22 m | Headphones cable - detachable - L shaped - 1.5 m | |
|---|---|---|---|
| Cable Length | - | 1.5 m | |
| Detachable Cable | - | Yes | |
| Plated Connector | - | Gold |
| BATTERY AND CHARGING | Koss UR 23i | Sony MDR 1000X |
|---|
| Battery Type | - | Headphone battery rechargeable - Lithium Ion | |
|---|---|---|---|
| Battery Life | - | 20 hours | |
| Standby Time | - | 34 hours | |
| Charging Time | - | 4 hours |
| WIRELESS LINK | Koss UR 23i | Sony MDR 1000X |
|---|
| Transmission Range | - | 10 m | |
|---|---|---|---|
| Modulation Type | - | FHSS | |
| Radio Frequency Range | - | 2.4 - 2.4835GHz |
| CONNECTIONS | Koss UR 23i | Sony MDR 1000X |
|---|
| Connector Type | Headphones (mini-phone stereo 3.5 mm 4-pole) | Bluetooth USB Headphones (mini-phone stereo 3.5 mm) |
|---|
| OTHERS | Koss UR 23i | Sony MDR 1000X |
|---|
| Included Accessories | - | Carrying case, USB cable, in-flight plug adapter | |
|---|---|---|---|
| Service & Support | Limited warranty - lifetime | - |
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