Sennheiser HD 660S2 vs Beyerdynamic DT 1990 PRO MKII

Best For

Best for Audiophile Listening

Sennheiser HD 660S2

Best for Studio Versatility

Beyerdynamic DT 1990 PRO MKII

Better Device Compatibility

Beyerdynamic DT 1990 PRO MKII

Best for Lightweight Comfort

Sennheiser HD 660S2

Best Accessory Bundle

Beyerdynamic DT 1990 PRO MKII

The Sennheiser HD 660S2 and Beyerdynamic DT 1990 PRO MKII are premium wired headphones designed for listeners who value detailed sound and reliable performance. The HD 660S2 features an open-back design, 38 mm drivers and a 300-ohm impedance, making it well suited to focused listening in a quiet environment. The DT 1990 PRO MKII offers a closed-back design, larger 45 mm drivers and a lower 30-ohm impedance for greater device compatibility. It also includes two cables, a hard case and interchangeable ear pad sets. Your choice depends on whether you prioritize open, natural listening or studio versatility and isolation.

Verdict

The Sennheiser HD 660S2 is the better choice for listeners who enjoy spacious, natural-sounding audio, detailed vocals and extended listening sessions in quiet surroundings. Its lighter 260 g construction and plush ear cushions also make it appealing for home listening. The Beyerdynamic DT 1990 PRO MKII is better suited to studio users seeking a closed-back design, flexible sound tuning and a comprehensive accessory package. Its 30-ohm impedance also makes it more accommodating of a wider range of audio sources. Neither is universally better; the right choice depends on your listening environment and workflow.

Specification	Sennheiser HD 660S2 Rs.54,990.00 Check Price on Amazon	Beyerdynamic DT 1990 PRO MKII Rs.59,889.00 Check Price on Amazon
Price	Rs.54,990.00	Rs.59,889.00
Brand	Sennheiser	Beyerdynamic
Model No	HD 660S2	DT 1990 PRO MKII
Wired / Wireless	Wired Headphone Specification	Wired Headphone Specification
Headphone Type	Over Ear	Over Ear
Magnet Type	Dynamic	Dynamic
Driver Diameter	38 mm	45 mm
Impedance	300 ohm	30 ohm
Sensitivity	104 dB SPL	94 dBSPL
Frequency Response	8 Hz -41500 Hz	5Hz - 40KHz
Maximum Power Input	NA	30 / 100 mW
Noise Cancelling	AMBIENT	NA
Available Colors	Black	Black
Connector Plating	3.5 mm	3.5 mm Gold-Plated Mini Stereo Jack Plug
Cable	Tangle- Flat Cable	Straight Cable, Coiled Cable
Weight	260 Gm	376 GM
Other Features	Plush ear cushions and open design for maximum comfort. Outstanding quality designed in Germany, made in Ireland. Intimate sound with great timbre and deep, accurate sub bass. Uniquely powerful vented magnet system for minimized distortion. Ultra-light aluminium voice coil with 300-ohm impedance for excellent impulse response.	Closed Design. Made in Germany. Single-sided detachable mini XLR cable. Premium circumaural studio headphones. Rugged spring steel headband construction. Circumaural soft ear pads for high wearing comfort. Headband pad with fontanelle recess for pressure relief. Gold-plated mini stereo jack plug (3.5 mm) & 1/4" adapter ( 6.35 mm ). For a variety of devices thanks to the improved TESLA.45-driver ( 30 ohms ).

Compare Sennheiser HD 660S2 with:

Sennheiser HD 700 Beyerdynamic DT 1770-PRO Denon AH-D5200 Cleer Audio NEXT Beyerdynamic DT 1770 PRO MKII

Compare Beyerdynamic DT 1990 PRO MKII with:

Beyerdynamic DT 1770 PRO MKII Audio Technica ATH-A2000Z Cleer Audio NEXT Denon AH-D5200 Beyerdynamic DT 1770-PRO

Frequently Asked Questions

Which product is better for gaming?

Neither is an obvious gaming winner based on specifications alone. The Sennheiser HD 660S2's open-back design may provide a more natural sense of space in a quiet room, while the Beyerdynamic DT 1990 PRO MKII's closed-back design is more suitable for environments where keeping outside noise down matters. Neither lists wireless connectivity or a built-in microphone.

Does the Sennheiser HD 660S2 support Dolby Atmos?

Dolby Atmos support is not specified in the provided product details. It is a wired headphone, so compatibility with spatial audio depends on the playback device, software and source content rather than a listed built-in Atmos feature.

Which headphones have better sound quality?

The Sennheiser HD 660S2 is designed for intimate listening with deep, accurate sub-bass and an open-back presentation. The Beyerdynamic DT 1990 PRO MKII is positioned as a premium studio headphone and includes two ear pad sets for different sound preferences. The better option depends on your preferred sound signature and intended use.

Which headphone is easier to drive?

The Beyerdynamic DT 1990 PRO MKII has a 30-ohm impedance, compared with 300 ohms for the Sennheiser HD 660S2. This generally makes the Beyerdynamic easier to pair with a wider range of sources, although actual loudness and performance also depend on sensitivity and the source's output capability.

Which headphone is more comfortable for long listening sessions?

The Sennheiser HD 660S2 weighs 260 g, while the Beyerdynamic DT 1990 PRO MKII weighs 376 g. The Sennheiser's lower weight and plush ear cushions may make it more comfortable for extended listening, although individual fit and head shape also matter.

Which product offers better accessories?

The Beyerdynamic DT 1990 PRO MKII includes a hard case, straight and coiled cables, a 6.35 mm adapter and two sets of ear pads with different sound characteristics. The Sennheiser HD 660S2 includes two cables, a 6.3 mm-to-3.5 mm adapter and a carry pouch. The Beyerdynamic offers the more extensive accessory package.

Top Differences

Noise Cancelling: AMBIENT vs NA
Driver Size: 38 mm vs 45 mm
Weight: 260 Gm vs 376 GM
Impedance: 300 ohm Vs 30 ohm