Side by side comparison and review of Sennheiser HD 4.30i 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 | Sennheiser HD 4.30i | 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 | - | 64 g | |
| Colour | Black | White | Black | |
| Earpad Material | - | Artificial leather | |
| Recommended Use | - | Computer |
| SOUND QUALITY | Sennheiser HD 4.30i | Poly Blackwire 3225 (3300 Series) |
|---|
| Headphones Form Factor | Full size | On-ear | |
|---|---|---|---|
| Ear Cups Type | Closed | - | |
| 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 | |
| Noise Isolating | Yes | - | Sennheiser HD 4.30i are equipped with a noise isolating function. |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 18 - 20000 Hz | - | |
| Total Harmonic Distortion (THD) | 0.5% | - | |
| Sensitivity | 120 dB/Vrms | 90 dB | Sennheiser HD 4.30i have higher sensitivity than Poly Blackwire 3225 (3300 Series). |
| Impedance | 18 Ohm | 32 Ohm | |
| Diaphragm | 32 mm | 28 mm | Sennheiser HD 4.30i have a thicker diaphragm than Poly Blackwire 3225 (3300 Series). |
| Features | - | Digital signal processing, Dynamic EQ optimised | |
| In-Cord Volume Control | Yes | Yes |
| MICROPHONE | Sennheiser HD 4.30i | Poly Blackwire 3225 (3300 Series) |
|---|
| Type | On-cable | Boom | |
|---|---|---|---|
| Microphone Operation Mode | Omni-directional | Omni-directional | |
| Frequency Response | - | 100 - 10000 Hz | |
| Sensitivity | -44 dBV/Pascal | -38 dBV/Pascal |
| REMOTE CONTROL | Sennheiser HD 4.30i | Poly Blackwire 3225 (3300 Series) |
|---|
| Controls | 3-button remote | Mute, volume, answer/end, hold, redial |
|---|
| CABLE | Sennheiser HD 4.30i | Poly Blackwire 3225 (3300 Series) |
|---|
| Cable Type | Headphones cable - detachable - 1.4 m | USB-A cable | |
|---|---|---|---|
| Cable Length | 1.4 m | - | |
| Detachable Cable | Yes | - | |
| Plated Connector | Gold | - |
| CONNECTIONS | Sennheiser HD 4.30i | Poly Blackwire 3225 (3300 Series) |
|---|
| Connector Type | Headphones (mini-phone 3.5 mm 4-pole) | USB (4 PIN USB Type A) Headset (mini-phone stereo 3.5 mm) |
|---|
| OTHERS | Sennheiser HD 4.30i | Poly Blackwire 3225 (3300 Series) |
|---|
| Included Accessories | Soft bag, audio cable (1.4 m) | - | |
|---|---|---|---|
| Compatibility | - | Mac, Windows | |
| Software Certification | - | Skype Certified, Avaya Certified, Cisco Jabber Certified | |
| Supported Host Device OS | - | Windows 10, macOS, Windows 11 | |
| Service & Support | Limited warranty - parts and labour - 2 years | - |
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