Side by side comparison and review of JVC HA KD7 and Poly Blackwire 3225 (3300 Series). 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 | JVC HA KD7 | Poly Blackwire 3225 (3300 Series) |
|---|
| Product Type | Headphones - wired - 3.5 mm jack | Headset - wired - USB, 3.5 mm jack | |
|---|---|---|---|
| Series | - | 3300 Series | |
| Height | - | 17.8 cm | |
| Width | - | 15.5 cm | |
| Depth | - | 3.2 cm | |
| Weight | 110 g | 64 g | Poly Blackwire 3225 (3300 Series) are lighter than JVC HA KD7 headphones. |
| Colour | Pink violet | Black | |
| Earpad Material | - | Artificial leather | |
| Design | Kids | - | |
| Recommended Use | Home audio | Computer |
| SOUND QUALITY | JVC HA KD7 | Poly Blackwire 3225 (3300 Series) |
|---|
| Headphones Form Factor | On-ear | On-ear | |
|---|---|---|---|
| Headphones Technology | Dynamic | - | |
| Adjustable Headband | - | Yes | |
| Connectivity Technology | Wired | Wired | |
| Active Noise Cancelling | - | Yes | Poly Blackwire 3225 (3300 Series) are equipped with active noice cancellation. |
| Active Noise Cancelling Technology | - | SoundGuard | |
| Volume Limiting Function | Yes | - | |
| Sound Output Mode | - | Stereo | |
| Frequency Response | 15 - 23000 Hz | - | |
| Max Input Power | 200 mW | - | |
| Sensitivity | - | 90 dB | |
| Impedance | - | 32 Ohm | |
| Max Sound Pressure | 85 dB | - | |
| Diaphragm | 30 mm | 28 mm | JVC HA KD7 have a thicker diaphragm than Poly Blackwire 3225 (3300 Series). |
| Magnet Material | Ferrite | - | |
| Features | - | Digital signal processing, Dynamic EQ optimised | |
| In-Cord Volume Control | - | Yes |
| MICROPHONE | JVC HA KD7 | Poly Blackwire 3225 (3300 Series) |
|---|
| Type | - | Boom | |
|---|---|---|---|
| Microphone Operation Mode | - | Omni-directional | |
| Frequency Response | - | 100 - 10000 Hz | |
| Sensitivity | - | -38 dBV/Pascal |
| REMOTE CONTROL | JVC HA KD7 | Poly Blackwire 3225 (3300 Series) |
|---|
| Controls | - | Mute, volume, answer/end, hold, redial |
|---|
| CABLE | JVC HA KD7 | Poly Blackwire 3225 (3300 Series) |
|---|
| Cable Type | Headphones cable - straight - 80 cm | USB-A cable | |
|---|---|---|---|
| Cable Length | 80 cm | - | |
| Plated Connector | Nickel | - |
| CONNECTIONS | JVC HA KD7 | Poly Blackwire 3225 (3300 Series) |
|---|
| Connector Type | (mini-phone stereo 3.5 mm) | USB (4 PIN USB Type A) Headset (mini-phone stereo 3.5 mm) |
|---|
| OTHERS | JVC HA KD7 | Poly Blackwire 3225 (3300 Series) |
|---|
| Included Accessories | Stickers | - | |
|---|---|---|---|
| Compatibility | - | Mac, Windows | |
| Software Certification | - | Skype Certified, Avaya Certified, Cisco Jabber Certified | |
| Supported Host Device OS | - | Windows 10, macOS, Windows 11 |
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