Design and features:This Bluetooth wireless noise-canceling home/studio-style over-ear model provides very good sound and excellent active noise reduction. Its closed design and electronic noise canceling feature reduce both outside noise and sound leaking out into your environment.
Additional features include:
Has integrated volume control, microphone, and call connect/disconnect control. Free Sennheiser Smart Control app download for Apple and Android mobile devices adds additional features and software updates.
Sound quality:We found the Accentum Plus delivers sound quality that falls in the very good range - it reproduces music and voice very well although it does have some noticeable sonic quirks and excellent active noise reduction. With the Sennheiser Smart Control app EQ set to Neutral, ANC on set to max effect (Adaptive feature = off) the bass (as in bass drums, bass guitars, stand-up bass, etc.) has good impact and goes deep, but is somewhat prominent and boomy. The midrange (voices, guitars, horns, etc.) is fairly even but is a bit grainy, somewhat hazy and congested (think sonic traffic jam) and a touch plasticky. The treble (cymbals, the upper range of violins, etc.) is extended, but is a bit prominent, sizzly (sounds that should have a delicate shimmer have a sound reminiscent of bacon frying) and smeared. The sound also has a good sense of liveliness and is somewhat open--sound-wise it almost seems like you don't have anything plugging up your ears and does a good job of recovering room ambience. Mixed character - warm bass with neutral midrange and coolish treble. The overall sound can be summarized as somewhat bassy and hazy, and a bit sizzly The Sennheiser Smart Control app EQ settings and presets had a noticeable effect on the sound.
Noise Canceling:
Excellent noise reduction across the entire frequency range with the low frequencies reduced the most. Orientation changes the noise reduction characteristic - when the noise is coming from the front a bit more high-frequency noise can be heard relative to when it's coming from the side or rear. A very faint rushing sound can be heard in quiet environments when there is no audio program to drown it out.
Comfort and Fit:There is a sense of moderate pressure around the ears. As typical of over-ear models the ear pads might feel hot and/or sticky after prolonged use.
Large
Users with larger heads might find that the headband does not have enough adjustment range to allow the ear cups to rest properly over the ears and/or that the headband presses uncomfortably on the top of the head.
Users with larger ears might find that the over-the-ear fit of the ear pads feel cramped, or that the ear pads sit on, rather than around their ears; in that case the less-than-ideal fit around the ears might interfere with the ear pad seal and reduce the bass response and/or noise reduction capabilities of the headphone.
Small
Users with smaller heads may find they can get a good ear pad seal and that the bass is not reduced.
Stability
Some users may find that when they lean far forward the headphones feel unstable and shift forward, and smaller heads might feel it possibly shift but not to the point of falling off.
Other noise
When wearing this model while walking the muffled vibrations from each foot step can be heard slightly through the headphones regardless of whether or not the headphones are in noise cancelling mode.
When the audio cord is used the sound of it rubbing on clothing may be faintly heard through the headphones.
