The closed over ear headphones with a wire Sennheiser HD 569 vs Sennheiser Momentum 2 is an interesting couple to compare for their outstanding quality and popularity but still have a lot in difference for the second being also wireless with some additional functions that I will review below.
Sennheiser HD 569 has a 5 Ohm lower impedance vs Momentum 2, 23 vs 28 Ohm, and 5 dB lower sensitivity, 115 vs 120 dB. However its range of frequency response is wider, 10Hz-28KHz vs 16Hz-22KHz.
Wireless option of Momentum 2 provides aptX and NFC. The battery life claims 25 hours with a charge time 2 hours. It has a battery free listening mode and a battery level indicator.
Sennheiser HD 569 reproduces a clear sound in all ranges. Its lows are not boomy but decent and deep. You may hear the vocals and instruments quite transparent. It has no ambient noise suppression, though tightly fitting cups with closed back cancel the sounds from surroundings quite well at middle volumes.
Sennheiser Momentum 2 is supplied with adjustable active noise cancellation.
Their outstanding transparency does not muffle any sound reproducing each spectrum rich, live, and very detailed with any voice shade and deepest bass expressiveness.
The weight difference is great in the favor of Momentum 2 with 755 vs 140 g and the latter has a benefit of being foldable to a more compact size and coming in a carry case. Both models have detachable cables, audio cable in a set, and adjustable headband.
Momentum 2 has a built-in microphone and voice control, plus built-in control buttons that provide a wide range of functions for music and calls vs HD 569 in-line with voice control of answer/end only.
The Sennheiser Momentum 2 is better headphones in this comparison. Check Sennheiser Momentum 2 price