The number in this product’s name is a warning label for some buyers. The beyerdynamic DT 990 Pro comes in more than one impedance, and this one is the 250 ohm version. A higher number means the headphone asks more of whatever drives it. So before you think about sound, you need to answer a plainer question: what are you going to plug this into?
The owner reports here are four detailed reviews out of a much larger pool on the Thomann music store. That’s a small sample, so I treat each one as one person’s report and I try to say less rather than guess.
Product image from the Amazon listing.
My opinion is that these suit a person who wants a wide, open sound at a desk, in a quiet room, and who has or will buy a simple amplifier. They don’t suit someone who wants one pair for everything.
Related reading
What Open-Back Means in Your Room
Beyerdynamic’s page describes an over-ear, open-back design for critical listening and editing in studios. It also says the headphones are generally well suited to gaming and streaming. The 250 ohm version has a coiled cable with a 3.5 mm plug and a screw-on quarter-inch adapter. The maker lists 250 grams without the cable and about 375 grams with it.
Open-back is the feature that shapes your life with these. The back of each cup lets sound pass in both directions. That’s why owners talk about space. One Thomann reviewer wrote: “it’s amazing! The open back produces a very open and light sound.” Another said: “Horizontal and vertical space became filled with the joy of good sound.”
The price of that space is simple physics. Sound leaks out, and the room leaks in. I found no owner who measured this, but it follows from the design. A partner on the sofa will hear your music. A fan, a keyboard or street noise will reach your ears. If you edit in a shared office, record with a live microphone nearby, or listen on a train, the design works against you. A vocal mic close to these may pick up what is playing, so most people would reach for closed headphones when tracking.
The Amplifier Question
The name of this model raises the question, and the owners I read give a split but useful answer.
A reviewer from 2018 said: “you probably gonna need a headphone amp as for almost all 250+ ohm headphones.” A reviewer from 2020 was more nuanced. A phone could drive these to loud levels, that owner said, but “if you pair them with a simple amplifier you will unleash the beast <1KHz”. In plain words, the headphones get loud without help, and an amp seems to tighten up the low end. The other two reviews I read did not mention an amp at all.
I’d read those two comments together like this. You probably won’t be stuck with a quiet headphone on a phone or a laptop. You may be missing some of what you paid for. The cheap route is to start with what you own, listen for a week, and add a small amp or audio interface only if the bass feels soft or you run out of volume on quiet recordings.
Mac owners will want a firmer answer, and I don’t have one. I found no owner report that tested these on a MacBook headphone jack, so I won’t claim that it’s enough or that it isn’t. If you already use an audio interface for editing, its headphone output is the natural place to start, and you can check the maker’s spec for how it handles high impedance loads.
There’s also a lower impedance option. Beyerdynamic’s main spec table on that page lists an 80 ohm version, so anyone who wants to skip the amp question may want to look at that first. I can’t say how it compares in sound, because I read no owner comparison.
Product image from the Amazon listing.
Related reading
Treble Is the Real Argument
Reviewers love the detail, and some of them can’t stand it for long.
The 2018 owner said “everything sounds crystal clear” and called the highs sharp, then gave a fair warning: “they might be too sharp for some and too tiring if used in long sessions.” That owner liked them anyway. The harshest comment came from a 2023 reviewer who wrote that the DT 990 “has simply too much of it” about the treble, and suggested a correction curve for mixing work.
That matters for the job this model is sold for. A headphone with extra treble can tell you there’s too much brightness in a mix when there isn’t, or make you pull it down too far. The 2023 reviewer’s idea of a correction curve is sensible if you plan to mix on these, and it suggests you should not take the sound at face value. The same reviewer gave a mixed view of the bass while praising stereo width.
For listening to music or finding small faults during edits, a bright headphone can be a help. For a long day of dialogue edits, the warning about tiring sessions is the line I’d take seriously. If bright sound has hurt your ears before, I would try before you commit, or buy from a store with a good return policy.
There’s one strong vote the other way. The 2020 reviewer level-matched the DT 990 against three rival headphones and judged the DT 990 the best of the group. Level matching is the fair way to do that comparison, so I give that report extra weight, though it’s still one person’s ears.
Comfort for Long Sessions
Owners are mostly happy here. One called them “just light enough that long time wearing is still comfortable”. Another praised the “Pretty fluffy” ear cups and said they wear glasses without pressure, though that owner worried about warm ears in summer. The 2018 reviewer found the fit tighter on the ears than the DT 880, and still “quite comfortable.”
I can’t tell you how they feel on a large head or a small one from four reviews. The pattern is good, and comfort is the one area where I saw no real complaint.
Product image from the Amazon listing.
The Coiled Cable and the Build
The build gets praise with a few sharp notes. One owner wrote: “They’re sturdy with a metal frame”, dropped them a few times, and reported no problems after about nine months. Another called it “Overall pretty solid BQ” but found the metal brackets flimsy.
Related reading
The cable draws the most fire. That 2020 owner disliked the fixed cable, which is also thick and heavy. The 2023 reviewer said the coiled cable “quickly became problematic,” and moved the headphones to a computer. So think about your desk. The cable is fixed, and a coil pulls at you when you turn or stand up. It’s fine for a chair in front of a screen, and it’s a nuisance for anything that moves. A fixed cable also means a damaged lead isn’t a quick swap for most people.
Calls are another thing to think about. The product page lists no built-in microphone, so for video calls or the gaming and streaming that beyerdynamic mentions, plan on a separate mic.
My Verdict on the 250 Ohm Question
I like these for a quiet desk, where you want width and detail, and where you can add a small amp if the sound feels thin. The owners I read who use them that way are mostly happy, with treble as the main doubt.
Skip them if you work near other people, or need to record near a live mic. Skip them if bright treble tires you, or if you want a cable you can replace. Don’t buy this version to use only on a phone, because you’d be paying for something you would rarely hear.
For editing and long listening in a room of your own, the beyerdynamic DT 990 Pro 250 Ohm is a strong choice, as long as you test your source first and keep the return window open in case the treble is too much for you. This is an affiliate link. As an Amazon Associate I earn from qualifying purchases.
One email a month: new articles, reviews and the upcoming live webinar + free recording. No spam, unsubscribe anytime.