Just received these this afternoon. I already own Amirons, DT 880s and DT 770s and Grado SR80s. I’m not a fan of Sennheiser, so anyone who is familiar with both Beyerdynamic and Sennheiser headphones will appreciate that this is a subjective review by someone who likes Beyerdynamic’s house sound. This review is my assessment of them purely for home use.
There are obviously loads of reviews of the 990s on the internet, and although very popular they obviously divide opinion. I shan’t make out that these are for everybody, but I’ll add my three pennies worth here which might cut through the superlative laden ayes and the damning nays and help some people to make up their minds on whether or not to buy a pair (I dithered for far too long).
When I was in my early twenties I might have found the Beyerdynamic sound too bright and analytical, but back then I could hear frequencies up to 20khz; not so now, at 63 my hearing tops out just under 14khz, so maybe this accounts for my later-in-life infatuation with the Beyerdynamic sound. Though I like most forms of music, the bulk of my collection veers towards acoustic music - classical, jazz etc - there’s also a fair bit of dub reggae, rock, EDM and so on (so, it’s basically Prince Far-I to Schubert, Aphex Twin to CSNY, Thelonious Monk to Joni Mitchell, Public Enermy to Spirit, Poppy Ackroyd to Bob Dylan - catholic, essentially).
I’ve only had a few hours to make comparisons (Bill Withers, Thelonious Monk, Radio 3, Bill Charlap, Heart of the Congos, Lana Del Rey), but I think this has given me adequate opportunity to make a pretty accurate judgement of the characteristics and comparative merits of the 990s. I’ve been listening to them mainly through a Little Dot Mk 2 with a combination of Novosibirsk and Mullard 8100 valves (sourcing from a Cyrus Cd and Cyrus 8 DAC amplifier).
I’m delighted with the 990s. They are neither shriekingly sibilant nor either lacking or over-endowed with bass. Compared to the other headphones that I own I would say that the 990s are nearest in sound to the 880s. Indeed, I think that they are very near sound-wise. The 880s are marginally more polished, but the difference (to my ears at least) is subtle rather than dramatic. I would suggest that the 990s are very good, cheaper alternatives to the 880s. The 880s clamp the head noticeably more lightly than the 990s, but the 990s are more secure on the head. Sound leakage is similar in both, so neither are good for listening to next to your sleeping partner (who hates going off to music and especially hates jazz) in bed unless you want a poke in the ribs. For this I have the 770s, which have a somewhat “fuller” or “fatter” sound than the other two. Leakage on the 770s is minimal at low to modest volumes.
The Amirons (Homes) are, to my mind, decidedly more “musical” or “liquid” sounding headphones, very enjoyable for extended listening and very revealing, in comparison with those I would describe the 990s and 880s as rather “analytical” sounding and the 770s are somewhat “dryer” (I hope describing their sound as both “dryer” and “fatter” doesn’t sound like a contradiction in terms but I can’t immediately think of a better words to describe the sound). However, they’re all good and all have what you might call a “house sound” (i.e. a Beyerdynamic sound), although the Amirons depart furthest from this sound (which isn’t really very far at all) while the others might all be considered even more typical. The Amirons have a fuller, certainly pleasant and, I would say, slightly coloured bass by comparison, the bass on the 880s and 990s is leaner and, as far as I am qualified to judge, seemingly more accurate. Some people say that they both lack bass, but I don’t think this it true, it is most certainly there when it’s there! It may be that those who think they lack bass are listening to these headphones without suitable amplification. As goes the 770s, I’d say that their bass - in terms of weight - lies in the middle here, it is perfectly good but it is neither as accurate as on the 880s and 990s nor as pleasurable as on the Amirons.
Sound stage is best, and very similar, on the 990s, 880s and Amirons. I wouldn’t say that there is any vastly significant difference here between these three headphones. The 770s, being closed-back, are noticeably more “closed-in” in terms of soundstage but, in terms of closed-back headphones per se they’re actually really rather good in this area; I’ve certainly not encountered a closed-back pair that are better (or indeed any other closed-back pair that I can actually bear - I personally much prefer open-back designs, for me the 770s are exceptions in this department). The 1770s may well be better, but I’m not about to fork out several hundred pounds more for those when I use closed-back headphones mostly for listening in bed via the headphone output of a Roberts radio.
As regards comparison with the Grado SR 80s, the 990s and 880s are decidedly superior sounding, with the Grados sounding rather rough and uncouth by comparison (though this isn’t helped by the Grados comfort levels which are simply not in the same league - half an hour with Grado SR80 ear pads is sheer torture; consequently I’ve replaced them with Sennheiser HD414 ear pads which improbably (as, apart from being yellow, they don’t seem materially that different from the Grado pads) improve matters a fair bit and don’t noticeably change the SR80s sound). The Grados do sound more bassy, but this is definitely a matter of quantity rather than quality. Build quality on the Grado SR80s is also markedly inferior to that of the Beyerdynamics. I would retire the Grados at this point, but their 32 Ohm impedance makes them useful. They’re good fun, but they’re not good for extended listening sessions.
The 990s and 880s with their 250 Ohm impedance definitely need amplification. I use a couple of Little Dot Mk 2s. The Amirons have the same impedance but are significantly more sensitive. For unamplified use I find the 770s a better match with their 80 Ohm impedance (they certainly work well with most Roberts radios of recent years, Roberts seem to have pretty good headphone circuits on their radios).
Summing up, I think that the 990s are fantastic value for money (the Amiron Homes, which I love, are perhaps a clear case of diminishing returns by comparison). If you’re thinking of buying a pair of Beyerdynamics, want open-backed headphones, fancy the 880s from all you’ve read, but feel that the 880s are a stretch for you financially, then I think you’d be missing very little with the 990s in terms of sound).
Originally, I had thought of purchasing Beyerdynamic’s new DT900 X headphones, but - reading the reviews, and knowing how much I already liked the sound of the 880s and 770s - I thought I’d save myself some money and get something that might not sound so hugely different for half the price and, beyond that, I actually prefer the look of the 990s. I don’t rule out considering the new series in future, but for now I don’t feel I’m missing out on anything that would be game-changing, although I admit I’m curious. As I have found repeatedly, however wild the superlatives I encounter in the reviews the actual differences between the last and the latest model of a particular piece of hifi is more often than not a matter of nuance.
Whatever way you cut it, comparing the 990s with the highly regarded and (to me) very similar sounding 880s and the more refined, more relaxed, but four or five times more expensive Amiron Homes, they are still very good sounding headphones and first class value for money - assuming, like me, you like the Beyerdynamic sound. If you’re a Sennheiser fan you’d probably be barking up the wrong tree (but you know that already) and, if you’re a Beats fan, then presumably you’re already stone deaf. And then again, as goes highly regarded budget headphones, I reckon they knock the Grado SR80s into a cocked hat. But not everyone would agree with me.
Anyway, I hope all that helps.
Update, 28/1/22. I’ve now spent some more time listening to the 990s on a Little Dot Mk 2 with a combination of Novosibirsk and Radio Technique valves (sourcing from a Naim CD5 via a Rega Elex R). The Radio Technique valves are very similar to the Mullard 8100s I used at the top of this piece. Continued close listening has only confirmed my sense of how good these headphones are. On further consideration, with this set up, I’d say their sound signature lies between that of the 880s and the Amirons. I’d say they sound slightly “weightier” than the 880s and that the Amirons are a bit more so, but the differences here are more subtle than seismic. On careful comparison, after a few hours of listening, my overwhelming sense at this point is that, if you like open-backed headphones, like the Beyerdynamic sound and have a hankering for a pair of Amirons but either can’t afford them or can’t justify the expense, then you really wouldn’t be missing very much at all by just settling for a pair of 990s. By comparison they are a real bargain and, I think, in absolute terms they are quite simply one of the best bargains there is on the headphone market.
One further point, on comfort, although the 990s have more clamping force on the head, I actually find them more comfortable than the Amirons as they fit my head better.
Finally, as anyone who has read this far has already probably figured out, it has cost me quite a lot to reach my conclusions here. I think I have a reasonable sense of humour, but if you’re an audiophile sceptic then I guess I can understand why you may feel you’re getting the last laugh! I’m glad I own the Amirons, they are very nice headphones, but if I could only have one pair I must admit that I’d very happily settle for the 990s.
Postscript, 31/1/22. On further reflection, it’s very good having several headphones all sharing a general character that I like, but each a little different from the others. Different music works best on certain headphones (for instance, listening to Beatrice Rana’s performance of the Goldberg Variations this morning I much prefer the rendition of her piano’s sound through the Amirons to that of the 770s (the piano sounding decidedly more lifelike through the Amirons), whereas with Thelonious Monk’s It’s Monk’s Time the difference is less obvious and, if anything, I’d say I actually prefer the 770s with their greater attack. But, different music is not all: different recordings, different source equipment, different mood of the listener ... however, it’s very quick and easy to change between modestly priced headphones during a listening session in order to optimise your listening experience (something you can’t readily do with expensive speakers, amplifiers, cartridges and so on).
| Connectivity technology | Wired |
|---|---|
| Wireless communication technology | Wired |
| Included components | 3.5mm Jack with a 1/4" adapter and coiled cable |
| Age range (description) | Adult |
| Material | Steel |
| Specific uses for product | over ear |
| Recommended uses for product | Audio Monitoring |
| Compatible devices | Laptops, Desktops, Music Production Devices, Cell Phones |
| Control type | Volume Control |
| Cable feature | Retractable |
| Item weight | 250 g |
| Water resistance level | Not Water Resistant |
| Package type | Standard Packaging |
| Unit count | 1 count |
| Style | single |
| Product Dimensions | 22.1 x 11.94 x 23.11 cm; 250 g |
| Item model number | 459038 |
| Connector | 3.5mm Jack |
| Material Type | Steel |
| Country Produced In | Germany |
| Size | 250 OHM |
| Proficiency Level | Professional |
| Colour Screen | No |
| Linux System Requirements | Aux Input |
| Mac System Requirements | Aux Input |
| Windows System Requirements | Aux Input |
| Unix System Requirements | Aux Input |
| Item Weight | 250 g |
