The Denon PerL Pro stands as a high-end ANC noise-canceling headphone which delivers superior audio performance for dedicated audiophiles. The unique circular design of the earbuds incorporates Adaptive Sound Technology which produces customized EQ settings through an ear shape assessment test present in the accompanying application.
Denon purchased the Australian headphone manufacturer Nura earlier this year and applied its top technologies to develop TWS headphones. The establishment of Nura took place in 2015 when Dr. Dragan Petrovic, Dr. Luke Campbell, and Kyle Slater founded the company. The Melbourne-based company established its funding through Kickstarter and received additional support from venture capital investors.
Nura has established itself as a successful company since its founding and its products have received international recognition. Nura technology enables users to modify sound according to their personal hearing needs while offering a range of appealing advanced features. Denon now controls the brand which operates as part of the Masimo Group.
Functions and Applied Technology:
The Denon PerL Pro wireless headphones establish compatibility with Qualcomm’s Snapdragon Sound platform while delivering superior Active Noise Cancellation performance which prevents external disturbances. The Denon PerL Pro headphones use Nura technology to create personalized headphone settings which match the specific hearing needs of each user.
The Denon PerL Pro headphones use ultra-sensitive microphones in the headphones to measure sound emissions. The microphones can effectively measure how the listener’s ears react to a series of test signals. The in-headphone processor works in conjunction with a smartphone app to create a data map of the listener’s hearing. The measurements create a personalized EQ setting tailored to the listener’s hearing, like a perfectly fitting glove. The difference between the sound before and after calibration is surprising.
Setting up the Denon PerL Pro is also very simple. Users must download the Denon app for iOS or Android smartphones before connecting to the headphones via Bluetooth. The app then begins measuring the wearer’s hearing and creates a custom hearing profile. You can even create multiple profiles and rerun the test at any time you want if you think your hearing has changed.
Other technical improvements of the Denon PerL Pro include more microphones than the previous generation. The additional microphones are used for the enhanced ANC function, which automatically adjusts the level of active noise cancellation to filter out unwanted external sounds. Another feature uses bone conduction microphones to capture the user’s voice more clearly, especially in windy conditions, making the use of the headphones for phone calls significantly more convenient.
The Denon PerL Pro supports Qualcomm’s aptX Adaptive audio decoding. The Denon PerL Pro should have the ability to transmit Bluetooth audio at 44.1kHz 16-bit CD-quality lossless audio. The Denon PerL Pro will switch to AAC because Apple’s iOS devices do not support aptX. Android users can easily use aptX decoding because it works without complications.
The Denon PerL Pro introduces its second major audio enhancement through its spatial sound mode. This setting becomes active by default until you decide to disable it because you want to listen to standard stereo audio without spatial sound processing. The Denon PerL Pro uses Dirac Virtuo spatial sound to process the source audio and create a unique spatial effect. The Dirac Virtuo system creates spatial sound that does not compare to either Dolby Atmos or any other spatial sound standard.
The Denon PerL Pro is a large headphone but is also very comfortable to wear. Denon offers the headphones with silicone ear tips in various sizes along with a pair of foam ear tips to cater to those who prefer that material. The optimal earbud size selection should occur because it determines both sound quality and the effectiveness of passive and active noise cancellation (ANC) functions.
The PerL Pro earbuds deliver eight hours of continuous audio playback after the user charges them to their maximum capacity. The charging case contains enough energy to power the earbuds for 24 hours which enables users to recharge their earbuds throughout a long flight. Users can recharge the case through two methods: the provided USB-C cable and any Qi-compatible wireless charging pad. The wireless charging method requires more time to reach complete battery power, yet it provides users with greater ease of use.
All common settings and functions such as pause, play, skip, and repeat can be controlled through the touch controls that each earbud provides. Users can set controls to manage phone calls or change the earbud volume. Denon has created a system that allows users to access six preset functions through a combination of taps and double taps and triple taps. Users can configure tap functions to specific commands through the Denon app, which also provides users with EQ adjustments and variable ANC settings that block out unwanted sounds.
The Denon PerL Pro achieves superior noise elimination through its Active Noise Cancellation system, which uses adaptive ANC to create multiple noise cancellation settings that can be adjusted instantly. The Denon PerL Pro successfully eliminates background noise, although it performs optimally when dealing with constant sounds such as airplane engine noise and car road noise. You can pause music and switch to Ambient Mode (Transparency) with just a touch. This feature allows you to pause your music while it increases all surrounding sounds, which helps you detect announcements and hear people who want to talk to you.
The four microphones built into each earpiece of the Denon PerL Pro are capable of capturing voices very well. Bone conduction technology helps people make better voice calls because it delivers clearer sound to them when they are outside during noisy or windy weather. Noise-canceling microphones also do a great job of eliminating unwanted background noise that can ruin phone or video calls.
Specifications:
| Charging Case Dimensions | 72.4 x 30.2 x 35mm |
| Weight | Earbuds: 8.6 g
Charging case: 51.2 g |
| Driver | Dynamic 10mm |
| Audio Codecs | Qualcomm aptX Lossless (44.1kHz, 16-bit CD-quality lossless audio, bit-for-bit with maximum bitrate: 1.2Mbps)
aptX Adaptive aptX Classic AAC / SBC |
| Frequency Response | 20Hz – 40.000Hz |
| Sensitivity | 101dB |
| Microphones | 8 microphones (including 2 bone-conduction mics) |
| Microphone Noise Reduction | Qualcomm aptX Voice for ultra-wideband voice calls (32kHz) |
| Spatial Audio | Dirac Virtuo |
| Noise Cancellation | Passive noise isolation via multiple ear tip sizes
Adaptive Active Noise Cancellation (ANC) |
| Controls | 4 configurable touch controls on each earbud
Play/pause, track skip, volume control, voice assistant |
| Battery Life | Total: up to 32 hours (8 hours earbuds + 24 hours case)
Charging: USB-C / Wireless charging |
| Water Resistance | IPX4 certified |
Denon PerL Pro True Wireless Earbuds – Adaptive Active Headphones Wireless Noise Canceling, Masimo Adaptive Acoustic Technology, Spatial Audio, 32Hr Battery Life, Wirefree Charging, Black:
Denon PerL Pro True Wireless Earbuds – Adaptive Active Headphones Wireless Noise Canceling, Masimo Adaptive Acoustic Technology, Spatial Audio, 32Hr Battery Life, Wirefree Charging, White:
Denon PerL Pro True Wireless Earbuds – Adaptive Active Headphones Wireless Noise Canceling, Masimo Adaptive Acoustic Technology, Spatial Audio, 32Hr Battery Life, Wirefree Charging, White:
The essential problem to address now involves sound quality. The Denon PerL Pro earbuds provide personalized hearing solutions which enable users to experience music in their own unique way. The Denon PerL Pro delivers outstanding performance among all the earbuds we have assessed. The bass depth and spatial sound handling create an extraordinary audio experience.
The Denon PerL Pro reproduces sound at extremely low distortion levels. Our testing proved successful because we could listen to music for long durations without developing any listening fatigue. Some low-quality headphones can quickly cause headaches due to distortion, and the brain has to work harder to decode the distorted sound. The Denon PerL Pro lets users experience music with complete clarity which eliminates all musical fog from their listening experience. The situation resembles someone who has just received fresh eye correction. Everything became visible to me in the standard way but without experiencing any harshness. The Denon PerL Pro produces sound which contains deep musical elements that satisfy even the most demanding music listeners.
Review and Commentary:
The Denon PerL Pro in-ear headphones can be likened to a Rolls-Royce in the automotive world. The customization function is very easy to use and it makes a huge difference. The experience of wearing a custom-made suit provides a better fit than using an off-the-rack suit from a mall.
The Denon PerL Pro’s ANC function has been enhanced and features adaptive active noise cancellation. The number of microphones for making and receiving phone calls has been increased to eight, and bone conduction provides better and clearer calls, especially in windy conditions.
The spatial sound function on the Denon PerL Pro is one of the most impressive we’ve ever heard, expanding the musical space without making the sound artificial or reverberant. There’s also the added benefit of Qualcomm’s Snapdragon Sound, offering some future updates for Android phone users who support this standard.
Tech Reviewer & Product Analyst
Định Bia has spent over 10 years testing consumer electronics with a focus on smart technology. He work as a product advisor at Biareview where he helped customers find the right devices for their needs. He personally tests every product featured on this site using a consistent evaluation framework covering quality, durability, and value. All reviews are based on experience, not influenced by the manufacturer.