Sennheiser IE 80S BT vs Beyerdynamic AVENTHO 300 – Specs, Price & Comparison (2026)

Utilizes top of the line DAC from AKM. 6-hour battery life, with USB charging. Excellent attenuation of ambient noise of up to 26dB. Flexible, soft touch ear hooks for a secure fit and superior comfort. aptX Low Latency support ensures perfect synchronization with video content. Manual frequency tuning possible with supplied bass adjustment and cleaning tool. Supports hi-res codecs for uncompromised sound, including LHDC, aptX HD, and AAC. Precisely tailor the sound experience using the Sennheiser Smart Control App and its 5-band equalizer. Audiophile sound quality is delivered by a dynamic speaker system employing powerful neodymium magnets. Dynamic speaker system with 10mm drivers and powerful neodymium magnets to ensure audiophile-grade accuracy and clarity. The IE 80S BT provides a connected user experience with at-a-touch interaction to all common voice assistants such as Siri and Google assistant via a dedicated button on the three-button remote.

Closed-back design, circumoral. Battery life up to 50 hours with ANC. Beyerdynamic Stellar. 45 drivers, made in Germany. Simple operation via touch pad and beyerdynamic app. Active adaptive noise cancellation (ANC) and transparency mode. Spatial audio thanks to Dolby AtmosÂ® with Dolby Head TrackingTM technology. High comfort when wearing due to ergonomic ear cups and use of high-quality materials. Multipoint BluetoothÂ® 5.4 for simultaneous connection of multiple BluetoothÂ® devices and automatic pause and playback function when putting on or taking off the headphone.

Key Differences

Battery life varies between the two (6 Hours vs 50 Hours), which affects how long you can use them on a single charge. The driver size differs between the two (10 mm vs 45 Drivers), which can influence sound depth, bass response, and overall audio clarity. Sennheiser IE 80S BT uses Bluetooth 5.0 while Beyerdynamic AVENTHO 300 supports Bluetooth 5.4, which can impact connectivity stability and efficiency. From a usability standpoint, both models provide a reliable and premium headphone experience. There is a noticeable difference in weight (30 gm vs 319 GM), which may affect comfort during extended use. The frequency response differs (10 Hz - 20000 Hz vs 5Hz - 22KHz), which can influence how well the headphones reproduce lows, mids, and highs. Sennheiser IE 80S BT and Beyerdynamic AVENTHO 300 offer different noise cancellation capabilities (Active vs Adaptive Noise Cancelling), which can impact how effectively they block external noise. Impedance levels vary (16 ohm vs 32 ohm), which can affect compatibility and audio output when used with different devices. If you're comparing Sennheiser IE 80S BT and Beyerdynamic AVENTHO 300, both models offer a strong combination of sound performance, comfort, and modern wireless features.

Verdict: Both models are competitive, and your decision should be based on your usage needs and preferred features.

Top Differences

Battery Life: 6 Hours vs 50 Hours
Noise Cancelling: Active vs Adaptive Noise Cancelling
Driver Size: 10 mm vs 45 Drivers
Bluetooth: 5.0 vs 5.4
Weight: 30 gm vs 319 GM

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Key Differences

Top Differences