The Inexpensive and Great Sounding Beyerdynamic DTX 350 m

Were it not for the fact that I'm about to tell you so, there's nothing that would clue you in: The Beyerdynamic DTX 350 m ($59) looks about like any cheap plastic headphone you might run across at WalMart...but beauty runs deep with this one. Check it out.

The DTX 350 m is as unassuming as it gets. This low-cost, mostly plastic headphone is an on-ear sealed can with folding features that allow ear capsules to rotate 90 degrees and swing inward toward the headband so you can more easily stuff it into the included cloth bag for storage and transport.

The look of these cans is very simple. The plastic is black semi-gloss with subtle glossy logo imprints on the headband and ear capsules. The 48" flat cable is in a "Y" configuration permanently attaching to each ear piece. A small one-button remote is included on the cable to the right ear.

At 130 grams, these are quite light. Caliper pressure on the ears is gentle, and the pleather earpads are plush and pliable. I did have a bit of trouble getting them to seal on my measurement head, but on my ears they seemed to fit and seal very well. This is a comfortable headphone that can be worn for quite a long time.

Reliability is something I really can't evaluate, I just don't spend enough time or place enough duress on products for that. But it is worth mentioning, in this case, that two of the three reviews on Head-Fi, and two of the eight reviews on Amazon for this headphone mention either creaking or breaking headbands.


Sound Quality
Sound quality of the Beyerdynamic DTX 350 m is simply superb at this price. This is a somewhat bass heavy headphone, but it's done quite tastefully. Measured bass is somewhat erratic due to problems sealing on my measurement head, but I heard it emphasized 5-7dB above baseline below about 200Hz. Bass was satisfyingly tight and undistorted at all but the highest levels. I would call this a borderline "basshead" headphone that many folks, myself included, will find quite satisfying.

Midrange is really good; a very even handed presentation with little in the way of coloration. Overtone balance is excellent; vocals seem coherent and properly present in the mix.

The treble is just a tad too bright up high for me, which means most folks will find the treble balance spot-on. Given the bass and treble mild emphasis, I would describe the DTX 350 m as having a mild "V" shaped response.

I did hear a somewhat cellophane-like mild glare to the treble, but it didn't seem to overly intrude on my listening pleasure. Cymbals and snares were consequently a little artificial sounding, but detail and resolving power remained quite good.

Though imaging wasn't particularly deep—headphones of this type rarely are—I found the image width good and nicely stable. Dynamic impact was also surprisingly good.

Against the similarly priced Skullcandy Grind I found the DTX 350 m somewhat more refined and well balanced. The Grind lacked the finesse and resolution of the DTX 350 m treble, and the bass extended further into the mids giving it a thicker sound down low. Imaging had less depth and width with the Grind, but dynamic punch was a bit stronger. Though the DTX 350 m is a bit better sounding, the Grind's construction does seem quite a bit more sturdy. If you'll be regularly throwing these into a backpack, the durability of the Grind might win the day.

Compared to the similarly price Noontec Zoro II HD (~$69) I found the Zoro to be a more neutral sounding can with a bit more restrained bass and treble. Generally, I'd recommend the Zoro II HD over the DTX 350 m for audiophiles, but I tend to think the younger crowd will like the warmth and excitement of the DTX 350 more. Build quality and styling of the Zoro are superior to the DTX 350 m.

The Beyerdynamic DTX 350 m is a dandy little headphone for folks desiring a well balanced tone with kickin' bass at a bargain price. Buyers should be aware that this may be a somewhat fragile headphone and should be used with care. If you plan to lovingly use and abuse your headphones, throwing it into backpacks care-free, check out the built-like-a-brick Skullcandy Grind. If you're looking for a more neutral tonal balance (less bass) the Noontec Zoro II HD may be right up your alley.

The Beyerdynamic DTX 350 m is going up on the "Wall of Fame" as a really great sounding, entry-level, basshead headphone. It's hard to believe you can get so much pleasingly punchy oomph at a price this low. Damned good.

Click here to view on YouTube.

Beyerdynamic home page and DTX 350 m product page.
Reviews on Head-Fi and Amazon.

beyerdynamic Inc. USA
56 Central Ave.
Farmingdale, NY 11735
(631) 293-3200

MLSensai's picture

Hi Tyll

first of all great article again!

Everytime you review a High End headphone I am very impressed and wondering, if I will spend so much money on a sigle headphone and a special amp in future. But for sure... I bet, I will. ;)
For now I am very satisfied that you review also low- and midrange headphones. As the Creative Aurvana is still a pretty good headphone.

Few sentences about me and my passion. I do a little reviews here in Germany, too. I the main I test bluetooth speaker and headphones, since a few months entering the cable only headphone area. My friends often ask me if I could suggest headphones in low- and midrange price and so I now concentrate more and more on headphones.

So this time you tested the DTX 350m and I agree, it is a really good headphone. But I did not expect you would put it on the wall of fame. :)

So because of this I decided to suggest the TDK WR680 OnEar headphone for a Tyll-Hertsens-Review. It is a very very cheap can included bluetooth and it is also all built of plastics. I own them half a year now and I did not expect that they will survive this time... but they did.
It is the same durability impression as with the DTX 350m. ;)

So let me tell following... I measured them and I can't believe this performance on a 20 bucks!!! can. They sound amazing neutral with a little emphazised deep and contoured base, natural mids and clear and warm highs. The stage for an OnEar headphone is really great. I would put them abvoe the Creative Aurvana... noo kidding.
The second impressive is their sound is the same played by cable or bluetooth connection. This is insane, most bluetooth headphones sound totally different played in this two ways. In nearly every case with cable they sound very poor because of lack of the active sound processing done with the bluetooth chip.

I am not affiliated with TDK in any way but this headphone is worth to get the innerfidelity check. Would be a pleasure for me, if you could have a listen on the WR680.

Thank you and keep up the great work!

Best regards

btw: for all able to read german here is my little review about the TDK WR680 with my light measurements

Phoniac's picture

Nice to see that you like my favourite on-the-go headphone. I too had a broken headband on my p (same phone without control buttons) after 1.5 years and received a new phone from beyerdynamic as replacement, so no reason to complain.

The main point for me is that the 350 accepts and produces very high levels of subbass without intermodulation distortions in the mids. It surpasses many other, even big closed reference headphones in this regard.

Makes me wonder when you will finally test the HA-SZ2000, which IMHO needs to be put on the wall of fame as well. Unique design and absolutely unique capabilities surpassing everything else I ever heard - if you know what to look for and are able to EQ it to a near linear frequency response (very important. It's trash without EQ correction in the mid and presence area). But then it will just blow you away.

johthor's picture

Excellent review Tyll. Just wanted to mention these are being sold on Amazon Canada for $45 USD or $59 CDN. I have not been able to try them anywhere yet but I have a lot of faith in them if Tyll says they are good. Going up on the "Wall of Fame" is enough for me.

jerseyd's picture

I still remember Steve Guttenberg turning me on to the DTX350 when I first met him a couple years ago. He suggested we should carry them at InnerSanctumAudio, and we have been ever since! Tyll's review is right on the money - fantastic sound for the low price point, if a little flimsy on build - but what do want for $60? Winner!

MarcoGV's picture

Tyll, thank you for another review of a budget headphone. The DTX 350 p seems to be the DTX 350 m without microphone. The white version of the DTX 350 p is available for $30 on as I type this. I own the (older and now discontinued) DTX 300 p, which seems similar. The DTX 300 p has a review on InnerFidelity: I wonder whether the differences between the 300p and the 350p are sufficient to justify an upgrade.

MarcoGV's picture

I should have looked in the measurement section! The 300p and the 350m have very different measurements. It seems that the 300p has much less bass.

Luigi's picture

Hi. i just purchased a k518le and once toggled the felt inside it literally shine in his category. can you compare the two?