In depth comparison and review of Poly Blackwire C225 and Roland RH A7. 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 | Poly Blackwire C225 | Roland RH A7 |
|---|
| Product Type | Headset - wired - 3.5 mm jack | Headphones - wired - 3.5 mm jack | |
|---|---|---|---|
| Weight | - | 200 g | |
| Colour | - | Black | |
| Headband Material | Metal | - | |
| Recommended Use | Portable electronics, computer | Professional audio |
| SOUND QUALITY | Poly Blackwire C225 | Roland RH A7 |
|---|
| Headphones Form Factor | On-ear | Full size | |
|---|---|---|---|
| Headphones Technology | - | Dynamic | |
| Ear Cups Type | - | Open | |
| Connectivity Technology | Wired | Wired | |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 20 - 20000 Hz | 10 - 25000 Hz | Roland RH A7 offer a larger frequency range than Poly Blackwire C225. |
| Sensitivity | - | 97 dB/mW | |
| Impedance | - | 34 Ohm | |
| Diaphragm | - | 40 mm | |
| Magnet Material | - | Neodymium magnet | |
| Features | SoundGuard Technology | - | |
| In-Cord Volume Control | Yes | - |
| MICROPHONE | Poly Blackwire C225 | Roland RH A7 |
|---|
| Type | Boom | - | |
|---|---|---|---|
| Frequency Response | 100 - 10000 Hz | - |
| REMOTE CONTROL | Poly Blackwire C225 | Roland RH A7 |
|---|
| Controls | Mute, volume, answer/end | - |
|---|
| CABLE | Poly Blackwire C225 | Roland RH A7 |
|---|
| Cable Type | Headset cable | Headphones cable - 3 m | |
|---|---|---|---|
| Cable Length | - | 3 m | |
| Plated Connector | - | Gold |
| CONNECTIONS | Poly Blackwire C225 | Roland RH A7 |
|---|
| Connector Type | Headset (mini-phone stereo 3.5 mm 4-pole) | Headphones (mini-phone stereo 3.5 mm) |
|---|
| OTHERS | Poly Blackwire C225 | Roland RH A7 |
|---|
| Included Accessories | - | 6.3 mm (1/4") stereo adapter | |
|---|---|---|---|
| Service & Support | Limited warranty - 2 years | - |
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