In depth comparison and review of Denon AH-C821 and Sennheiser IE 40 Pro. 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 | Denon AH-C821 | Sennheiser IE 40 Pro |
|---|
| Product Type | Earphones - wired - 3.5 mm jack | Earphones - wired - 3.5 mm jack | |
|---|---|---|---|
| Weight | 10.4 g | 18 g | Denon AH-C821 are lighter than Denon AH-C821 headphones. |
| Colour | - | Black |
| SOUND QUALITY | Denon AH-C821 | Sennheiser IE 40 Pro |
|---|
| Headphones Form Factor | In-ear | In-ear - over-the-ear mount | |
|---|---|---|---|
| Headphones Technology | Dynamic | Dynamic | |
| Connectivity Technology | Wired | Wired | |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 4 - 40000 Hz | 20 - 18000 Hz | Denon AH-C821 offer a larger frequency range than Sennheiser IE 40 Pro. |
| Max Input Power | 250 mW | - | |
| Total Harmonic Distortion (THD) | - | 0.1% | |
| Sensitivity | 110 dB/mW | 115 dB | Sennheiser IE 40 Pro have higher sensitivity than Denon AH-C821. |
| Impedance | 46 Ohm | 20 Ohm | |
| Diaphragm | 11.5 mm | 10 mm | Denon AH-C821 have a thicker diaphragm than Sennheiser IE 40 Pro. |
| CABLE | Denon AH-C821 | Sennheiser IE 40 Pro |
|---|
| Cable Type | Headphones cable | Headphones cable - L shaped - 1.3 m | |
|---|---|---|---|
| Cable Length | - | 1.3 m |
| CONNECTIONS | Denon AH-C821 | Sennheiser IE 40 Pro |
|---|
| Connector Type | Headphones (mini-phone stereo 3.5 mm) | Headphones (mini-phone stereo 3.5 mm) |
|---|
| OTHERS | Denon AH-C821 | Sennheiser IE 40 Pro |
|---|
| Included Accessories | Cable clip, 4 pairs of ear tips (supersmall, small, medium, large), Comply TX500 ear tip | Cord clip, pair of memory foam ear tips, 3 pairs of silicone ear tips (small, medium, large), soft pouch |
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