The Overview section shows a selection of key stats for the headphone alongside a summary of who the headphone is targeted at, how difficult it is to drive, and what to expect in the box.
Pricing shows the recent, discounted retail price compared to the average price on the used market, at the time of writing, in Canadian dollars.
Cables lists what cables and adapters are included in the box. For wireless headphones, it will also list what wired audio inputs the headphone accepts (i.e. passive 3.5mm, USB-C).
Ohms represents the manufacturer's stated impedance of a headphone. This is generally measured at 1 kHz, and the actual impedance of a headphone tends to be much higher at lower frequencies, and slightly higher at high frequencies.
Levels shows the efficiency and sensitivity of the headphone, measured in decibels per milliwatt (dB/mW) and decibels per volt (dB/V). This is how loud the headphone will get from 1 mW of power or from 1 volt RMS. The dB/mW value is relative to the headphone's impedance and is not ideal for comparing headphones of different impedances; for that purpose, you should use the dB/V value, which is independent of impedance.
Amp? indicates whether these headphones will require an amp. The general rule of thumb is you want to be able to power a headphone to 110 dB to ensure plenty of dynamic range, though 105 dB is often good enough if you don't listen to high-fidelity audio. Headphonesty has an excellent calculator where you can enter your headphone's values and desired loudness to see how capable of an amp will be required. As a quick reference, Apple's $10 North American USB-C to 3.5mm dongle provides 1 Vrms, while the European version provides 0.5 Vrms.
Whether the headphones will need an amp depends on what you're plugging them into. Cheap audio chips have gotten good enough that modern computers often have a built-in DAC and amp that are sufficient for many moderate impedance headphones if they're reasonably sensitive. In these cases, a "Maybe" value will be assigned. Headphones that are very easy to drive off just about anything are given a "No," while headphones that are difficult to drive are given a "Yes." One complication comes from low impedance, low sensitivity headphones (e.g., Hifiman models) that require a lot of current to sing. They generally sound just fine off a cheap amp, but their dynamic range and soundstage greatly benefit from a better source.
If you're not sure whether you'll need an amp or DAC, we recommend buying the headphone first and trying it on your current setup. If you're hearing any noise, distortion, or the sound is just lower-quality than you expect—then try a DAC. If your headphone is unable to reach a volume substantially louder than your comfortable listening level without passing 75–80% of your max volume, you'll want an amp.
At Humble Headphones, we aim to provide simple and transparent ratings that reflect a headphone’s perceived performance across various key categories. Each of these categories is completely subjective to our opinions and updated as we continually compare old headphones to newly acquired ones. Our ratings are not scientific. They are not based on measurements or graphs. They are based on how the headphones sound to us.
Here’s how we calculate each rating and what they each mean:
Overall
What it represents: The headphone’s final score across all categories.
How it’s calculated: The headphone's points are summed and compared to a letter grade range. This is our broadest rating and should be judged alongside the Value rating.
Gaming
What it represents: How well the headphone performs in gaming.
How it’s calculated: The average score given for three different gaming situations focusing on: fidelity and immersion, explosion and gunfire depth and detail, directional audio and clarity; then nudged based on imaging, soundstage, and comfort.
Sound
What it represents: The headphone’s overall audio quality, based on technicality and tonality.
How it’s calculated: A letter grade based on the sum of the Lows, Mids, and Highs scores. Technicality (speed, detail, clarity, timbre, etc) is weighted a little heavier than tonality (balance).
EQ is not used.
Music
What it represents: How enjoyable and well-rounded the headphone is for music listening across genres.
How it’s calculated: 20 songs are rated from 1-5 for enjoyability, with very rare scores of 0 or 6. The scores are summed and given an overall letter grade.
EQ is used.
Imaging
What it represents: The headphone’s ability to precisely place sounds in a 3D space, such as where an instrument or footstep comes from.
How it’s calculated: An initial score is given based on spatial audio tests, then adjusted with the music tracks. Accuracy during both quiet and busy soundstages are equally important.
Soundstage
What it represents: The perceived width and height of the headphone’s audio reproduction. A wider soundstage feels more spacious and immersive.
How it’s calculated: A score is given based on the size of the 3D space experienced over the course of several spatial audio tests.
Build Quality
What it represents: The durability, material quality, and overall construction of the headphone.
How it’s calculated: Personal inspection of the headphone robustness and feel, where and how plastics are used, online research for common failures and issues.
Comfort
What it represents: How comfortable the headphone is for extended use, factoring in weight, padding, clamping force, and ear cup size/design.
How it’s calculated: The initial score is based on first impressions of wearing the headphone. It is then lowered overtime as the headphones grow fatiguing or sore to wear.
Value
What it represents: The headphone’s bang-for-the-buck, separated into two ratings for purchasing new or used.
How it’s calculated: The Value rating is based on a normalized ratio calculated by comparing a headphone’s overall score to its price, relative to all other tested headphone's overall scores to their prices in the dataset. Affordability is weighted more heavily, and the used price for a headphone is compared only against other used prices, and new prices only against other new prices. These factors highlight headphones that deliver excellent performance for their cost, with a greater performance growing increasingly more important to justify a greater cost. This ensures that higher-performing, lower-priced options achieve a better value score.
These lists are all based on my subjective ratings and enjoyment of each headphone. They are my opinion, have no basis on any objective measurements, and are updated semi-frequently.
Headphones with a "For Music" score of 0 have been entered into the spreadsheet but not yet evaluated. Headphones marked with a single asterisk were tested via Bluetooth or a wireless dongle. Headphones marked with two asterisks were tested using USB. Everything else was evaluated on a FiiO K7.
The first batch
A heap of Sennheiser