Side by side comparison and review of Koss UR 23i and Sennheiser HD 300 PRO. 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 | Sennheiser HD 300 PRO |
|---|
| Product Type | Headphones - wired - 3.5 mm jack | Headphones - wired - 3.5 mm jack | |
|---|---|---|---|
| Weight | - | 297 g | |
| Colour | White | Black | - | |
| Recommended Use | Portable electronics | - |
| SOUND QUALITY | Koss UR 23i | Sennheiser HD 300 PRO |
|---|
| Headphones Form Factor | Full size | Full size | |
|---|---|---|---|
| Headphones Technology | - | Dynamic | |
| Ear Cups Type | - | Closed | |
| Connectivity Technology | Wired | Wired | |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 20 - 20000 Hz | 6 - 25000 Hz | Sennheiser HD 300 PRO offer a larger frequency range than Koss UR 23i. |
| Max Input Power | - | 500 mW | |
| Total Harmonic Distortion (THD) | - | <0.1% | |
| Sensitivity | 94 dB | 108 dB | Sennheiser HD 300 PRO have higher sensitivity than Koss UR 23i. |
| Impedance | 34 Ohm | 64 Ohm | |
| Max Sound Pressure | - | 123 dB |
| MICROPHONE | Koss UR 23i | Sennheiser HD 300 PRO |
|---|
| Type | On-cable | - |
|---|
| CABLE | Koss UR 23i | Sennheiser HD 300 PRO |
|---|
| Cable Type | Headphones cable - 1.22 m | Headphones cable - 1.55 m | |
|---|---|---|---|
| Cable Length | - | 1.55 m |
| CONNECTIONS | Koss UR 23i | Sennheiser HD 300 PRO |
|---|
| Connector Type | Headphones (mini-phone stereo 3.5 mm 4-pole) | Headphones (mini-phone stereo 3.5 mm) |
|---|
| OTHERS | Koss UR 23i | Sennheiser HD 300 PRO |
|---|
| Included Accessories | - | 6.3 mm (1/4") stereo adapter | |
|---|---|---|---|
| Service & Support | Limited warranty - lifetime | - |
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