TLDR;
The video reviews the Sennheiser HDB 630 headphones, highlighting their exceptional sound quality as demonstrated by frequency response measurements. The headphones come with a BTD 700 dongle for high-resolution audio and support multiple connection types, including analog, USB-C, and Bluetooth. The reviewer praises their active noise cancellation, customizable EQ, and long battery life, positioning them as a top-tier choice that outperforms competitors like Sony and Apple.
- Exceptional sound quality, rivaling $60,000 headphones
- Includes BTD 700 dongle for high-resolution audio on various devices
- Versatile connectivity: analog, USB-C, and Bluetooth
- Superior active noise cancellation and long battery life
Intro [0:00]
The reviewer introduces the Sennheiser HDB 630 headphones, suggesting they could redefine the headphone industry due to their exceptional sound quality, as indicated by objective measurements. These headphones are claimed to rival the sound quality of $60,000 headphones. The reviewer plans to test them using a head and torso simulator to verify these claims.
What they look like & what's in the box [1:04]
The reviewer unboxes the Sennheiser HDB 630 headphones, noting their touch-sensitive ear cup for gesture controls like volume adjustment, call management, and music playback. The headphones feature a button for pairing, power, and voice assistant activation. They support USB-C charging, analog input, and USB-C streaming from a PC. The package includes a USB-C to USB-C cable, an analog audio cable with a mini jack, and documentation.
The included BTD 700 dongle [2:28]
The Sennheiser HDB 630 headphones include a BTD 700 adapter, enabling high-resolution audio connections to devices that may not natively support it, such as iPhones. This dongle supports high-end wireless protocols like AEX HD and AEX adaptive. The headphones boast a battery life of up to 60 hours, owing to their form factor, which allows for a larger battery compared to earbuds.
SurfShark [3:28]
The video includes a promotional segment for Surfshark VPN, highlighting its ability to mask your location and secure your internet traffic. Surfshark offers over 3,200 servers in 100 countries, allows unlimited devices per account, and has a verified no-log policy. A special offer is available using code "jaku" for 4 months free and a 30-day money-back guarantee.
Noise cancellation [4:24]
The reviewer assesses the noise cancellation capabilities of the Sennheiser HDB 630 headphones, noting that while over-ear headphones may not isolate noise as effectively as in-ear models, the noise cancellation is still quite effective. A double-tap gesture turns the noise cancellation on and off.
Connecting them & hi-res mode [4:46]
To connect the headphones, you first pair them with your phone via normal Bluetooth. Then, plug in the BTD 700 dongle, which should pair directly with the headphones, allowing you to switch between using the dongle or Bluetooth. For the highest resolution Bluetooth signal, high-res mode must be enabled, and the headphones restarted. The dongle also features oriccast mode for Bluetooth low energy streaming to multiple headphones and a gaming mode for lower latency.
Listening!!! [5:34]
The reviewer uses Tidal to test the listening quality of the headphones, playing a 24-bit 48 kHz FLAC file. The headphones deliver great sound quality even at maximum volume.
How to properly test headphones, featuring @DMS3TV [6:01]
The reviewer collaborates with DMS to conduct a proper headphone test using a Brüel & Kjær Type 4128C Head and Torso Simulator (HATS). This device uses specialized microphones and artificial ears, which represent the average of hundreds of people's ears, to measure how headphones sound across the entire frequency response range (20 Hz to 20,000 Hz). The goal is to obtain objective measurements of the headphones' sound profile.
The data... the results. [7:59]
The frequency response graph is analyzed to assess the sound quality of the headphones. The graph displays bass on the left and treble on the right. The yellow line represents the HDB 630s, and its proximity to the gray region indicates how well the headphones align with what most people perceive as good sound. The HDB 630s track this line exceptionally well, indicating phenomenal tuning. While there's a slight deviation at the high end, it's generally beyond the hearing range of most adults. The HDB 630s are compared to Sennheiser's $60,000 HE-1 headphones, and the HDB 630s perform comparably well at a fraction of the cost. The reviewer praises the HDB 630s for their versatile connectivity, excellent active noise cancellation, and overall immersive experience, deeming them superior to competitors like Sony's XM series and Apple's AirPods Max. The microphone quality is described as passable for audio calls but not fantastic.