AblePlanet Clear Harmony Noise Canceling Headphones

	Sennheiser HD 650 Comparison
• HD 650s have far superior audio quality. • NC200s isolate much better. • NC200s are also much cheaper, if you're looking for isolation on a budget.
	Usability	Page 7 of 12	Denon AH-NC732 Comparison

Design

These two headphones have very different designs. For starters, the HD 650s are over-ear, rather than on-ear (circumaural vs. supra-aural). The HD 650s are also open-backed, so they're not a good pick if you're concerned about isolation.

Aesthetics
Clear Harmony NC200	Sennheiser HD 650

Sound Quality

What the HD650s lack in isolation, they make up for in sound quality. This is a problem we've found with many active-cancellers out there: their cancellation feature often comes at the expense of audio quality.

In terms of frequency response, the NC200 was significantly more erratic than the HD 650s, which had a much more even kiel to its frequency response.

Frequency Response
Clear Harmony NC200	Sennheiser HD 650

The HD 650 barely had any distortion. It wins by a long shot.

Distortion
Clear Harmony NC200	Sennheiser HD 650

The HD 650 also had much smoother tracking.

Tracking
Clear Harmony NC200	Sennheiser HD 650

Isolation

The NC200 isolates much better than the HD 650. The HD 650s are open-backed, though, so if you're looking for isolation, these shouldn't be considered.

Isolation
Clear Harmony NC200	Sennheiser HD 650

Comfort

The HD 650s are significantly larger, and have harder pads with coarser padding. The NC200s were slightly more comfortable, unless you're used to a large set of over-ears.

Wear
Clear Harmony NC200	Sennheiser HD 650

Verdict

The HD 650s are significantly better in terms of audio quality, but don't offer the isolation that the NC200s do. The NC200s are also significantly less expensive than the HD 650s.