Sennheiser CX 7.00 BT Bluetooth neckband headphones review
Sennheiser CX 7.00 BT
• Balanced, bass-focused audio
• Four eartip options
• 10-hour battery life
• Quality build
• On the heavier side
• Case doesn't provide much protection
Sennheiser have been hitting a real purple patch lately, and the new CX 7.00 BT is no exception. The new neckband design looks and sounds gorgeous. With its 10-hour battery life, you won’t be left without your tunes on a long commute either. At $150 USD (£130, $250 AUD) the CX 7.00 BT is on the premium side of the in-ear headphone market. For those on a budget, don’t forget to visit the Sennheiser earphones guide for whole CX series line up. If you’re happy to spend £130, don’t go anywhere!
Clear, bass-focused sound
Sennheiser present a clear, consumer-friendly sound with CX 7.00 BT. The headphones offer a broad 17Hz – 21,000Hz frequency range. They provide clarity across the range and have a boosted bass response. The low-end is clear, warm and fat. It’s not as aggressive as some Sennheiser headphones, although it’s definitely the most noticeable part of the CX 7.00 BT’s profile.
Listening to The 1975’s hit Love Me, the bass guitar is brought right up front and centre. The high end of the vocals and lead melodies are also brought forward. The drums and trebly rhythm guitar are present and powerful. On songs with more mid-heavy rhythm guitar, the mids do get a little recessed. But in a testament to Sennheiser’s design, they don’t become muddy. Other companies could really learn from Sennheiser’s tuning here, as headphones with boosted bass and treble almost always nerf the mids.
Rigid neckband design
The Sennheiser neckband is rigid, more so than other neckband headphones I’ve used. If you bend the band, it returns to the original shape straight away. This design has both pros and cons to it. Many flexible neckband headphones will move around and fall out of place, requiring frequent repositioning. This isn’t a problem with the CX 7.00 BT. As a result it’s great for most forms of exercise (although it does tend to bounce up and down while running). The advantage of flexible neckbands is that they are often light and you forget about them once they are on. The Sennheiser’s rigid form and means you are more aware of it on your neck.
10-hour battery life
The Sennheiser CX 7.00 BT has a 10-hour battery life, which is a good showing for this format of headphone. You can reach a full charge within 1.5 hours.
Sennheiser deliver premium build
At $149.95, you’d expect the CX 7.00 BT to be made with premium materials, and Sennheiser haven’t disappointed here. The neckband is made of hard plastic that would take some punishment without a problem. The cables are made of rubber and don’t get tangled up, while the earpieces are made of metal and hard plastic.
Sennheiser provide the following accessories: 1.3m charging cable, four eartip sizes and a fabric carry case. The case would help prevent the cables getting tangled in a bag but otherwise doesn’t provide that much protection. I’ve always been a fan of the Sennheiser eartip designs. Some companies don’t seem to get the tip sizes right, resulting in an unsatisfying fit. I’ve never had this problem with Sennheiser and they got it right again with the CX 7.00 BT tips.
Ease of use
The Sennheiser CX 7.00 BT provides verbal audio prompts when turning on/off and when connecting to Bluetooth. I’m a big fan of this as some headphones just make random, non-specific bleeps and bloops. The controls are all physical buttons set into the left arm on the neckband, near the microphone. It’s a straight-forward control scheme that’s very easy to use. Each control is given a distinct shape so it’s easy to navigate them by touch alone.
The verdict on the Sennheiser CX 7.00 BT
Sennheiser have ticked a lot of boxes with the CX 7.00 BT. The CX line has been around for a long time but Sennheiser have apparently kept the best for last. At $150 it’s not cheap, but the clear, powerful audio makes the outlay worth it. The build is durable and the controls are easy to use. The neckband is on the heavier side, which is one of the few downsides.
- Frequency response: 17Hz – 21,000Hz
- Sound pressure level: (SPL) 112 dB (1 kHz/0 dBFS)
- THD, total harmonic distortion: <0.5% (1kHz/100dB SPL)
- Microphone Pick-up pattern: Omni-directional
- Sensitivity as per 121 TR 9-5: - 44 dB V/Pa