I have recently stumbled upon two cheap Over-Ear headphones. I still have the older Koss ones working (those things last for many years, no matter how cheap model you choose). With four pairs of headphones, it is time to rank them a bit, especially against the non-Koss SilverCrest one.
Here is the list of tracks I usually test my tech with.
1. Rough Edge (Alice Sound Collection vol. 3 ver), Shade, Rance IX https://www.youtube.com/watch?v=O43vXMcYz-g
2. Running to the Straight (Alice Sound Collection vol. 5 ver), Shade, Mamatoto the Record of War https://www.youtube.com/watch?v=jtIXQL9_dpU
3. A Tiny Spaceship’s Final Mission , FantomenK https://www.youtube.com/watch?v=GIN_cpdLyw4
4. Up in da Club , TJ Kirk / SirJamesKaye https://www.youtube.com/watch?v=4hio6TJlYqQ
5. Lotus 2 Turbo Challenge Main Theme, Barry Leitch https://www.youtube.com/watch?v=LQSsq7HCNHw
6. A Skullish Maze , Crystal Beans (various artists) https://www.youtube.com/watch?v=u65GEQUK0T0
7. Dark Princess , Noriyuki Iwadare, Der Langrisser SNES/SFC https://www.youtube.com/watch?v=txuEVfL63Kc
8. Loops of Fields , Noriyuki Iwadare , Growlanser https://www.youtube.com/watch?v=FIGTAJUzdHQ
9. Jurian , Noriyuki Iwadare , Growlanser https://www.youtube.com/watch?v=-gQylix7pgU
10. Fighting the Spirit , S.S.H. , Tales of Phatasia cover https://www.youtube.com/watch?v=ZbrKFoj-lRw
11. Avatar , S.S.H. , Lost Child https://www.youtube.com/watch?v=GMGblLbTvEI
12. Black Gate , S.S.H. , Lost Child https://www.youtube.com/watch?v=ONH9sWogtWk
13. Pagan , S.S.H. , Lost Child https://www.youtube.com/watch?v=31CzbmatQQs
14. Returning Home from the Sky , S.S.H. (ZUN) , Touhou cover https://www.youtube.com/watch?v=HpgtQiRHtt0
15. Flapper Girl , S.S.H. , Super Robot Taisen https://www.youtube.com/watch?v=CX45gwTo4tY
16. Midnight Shooter , S.S.H. https://www.youtube.com/watch?v=w5Rx6UfuBdo
17. Girl’s Sealing Club, S.S.H. (ZUN) , Touhou cover https://www.youtube.com/watch?v=GymnTfHkg2A
18. Palace of Destruction , Toshinori Hiramatsu , Ys I https://www.youtube.com/watch?v=Mtsd-N7QqvE
Condition comparison:
*Koss KPH5 , procured 2016/11 , externally almost destroyed with no speaker cloth left and duct tape all over , 80 – 20 kHz range
*Koss UR10 , 06/2018 , lightly used , 60 – 20 kHz range , some holes taped over to reduce the boxy sound
*Koss UR23i and Silvercrest SKO 40 A1 , 03/2018 , almost unused , 20 – 20 kHz ramge (full)
The master volume was 37% (Windows 7). The low volume level hurts the cheaper On-Ears and absolutely murders UR5 that requires over 75% to not sound half-silent. This was on purpose — with some low-volume programs it would be quiet anyway.
Results
Best melodic clarity / best sound wins. Ranking from best to worst. The best gets 3 (or less in the case of a tie) points and the worst 0.
1. Rough Edge: SKO 40 A1 (no over-muffling and the drum beats have punch, a terrific car-stereo sound, no compaints) – UR23i (clear over-muffling issues to the point of having worse background melody clarity than UR10, maintains position with superior low-frequency clarity) – UR10 (superior instrumental clarity over UR5) – UR5 (makes the better ones sound really good, under-amplification/volume problems with low volume despite the missing fluffy parts) :
an echo/surround-heavy track , echoing sounds favor the 20 Hz range headsets hands down
2. Running to the Straight: SKO 40 A1 (a clear bass) – UR23i (the discant is on par with SKO, muffled melody, harder to follow, possible padding/sound processing issue) – UR10 (a step worse than the two, a step better than UR5) – UR5 : a high-discant synthesizer track with some bass and a lot of background melody
3. Tiny Spaceship’s Last Mission: SKO 40 A1 & UR23i (SKO has a bit more closed-room space-feel sound, no significant difference, the studio-clear effects eliminate SKO’s muffling issue) – UR10 (half the background melody is not clearly audible on UR10) – UR5 (you cannot even hear most of the smooth echoing effects on this one) : a synthesizer track with studio-clean effects
4. Up in da Club: SKO 40 A1 ( the rare bass segments make the song ) – UR23i & UR10 (barely edges over UR5) – UR5 : a very simple synth track with low bass and some low-quality voice samples
5. Lotus Turbo Challenge 2 Main Theme: SKO 40 A1 (it is obvious that the composer used this kind of bass-oriented headsets as the drums mesh perfectly with the sound) – UR23 (some of the high-pitch effects are muffled to death) – UR10 – UR5 (the sound is not as full as intended, the softer drum instrument is barely audible) : a bass-heavy track with some L-R-channel-asymmetric high-pitch effects [ Upon checking with the original playback, the chirping effects seems to have been almost completely muted by the YouTube compression algorithm. ]
6. A Skullish Maze: NO DIFFERENCE (the Over-Ears have some non-melodic extra clarity to one echoing part) : a discant-dominated track with absolutely dull and single-note drum instruments
7. Dark Princess: SKO 40 A1 (the extra bass focus brings out a faint drumming melody not recognizable on other sets and underlines how the track itself has some low-volume issues with its background instruments) – all Koss : a drums galore track despite the synthesizer melody lead
8. Loops of Fields: SKO 40 A1 (I can hear guitar stringing and other effects) – all Koss : a flute lead effect-rich track
9. Jurian: SKO 40 A1 (a lot of weak low-frequency effect sounds are properly amplified and audible) – UR10 – UR5 & UR23i (you read right — the muffling is so bad it makes UR23i sound worse than UR10 with a lot of low-volume effects wiped out) : an effects track with a lot of low volume background instruments and effects
10. Fighting the Spirit: SKO 40 A1 & UR23i (zero white noise sensations, the track is such a mess I cannot tell any melodical difference) – UR10 – UR5 (some effects get muffled down to annoying white noise) : a heavy effects track with channel-asymmetry both volume- and effect-wise (left channel is 20 – 30 % louder) and echoing, void-filling effects
11. Avatar: SKO 40 A1 & UR23i (the track effectively muffles and drowns itself with effect-overuse, drums alone make it Over-Ear superior ) – UR5 & UR10 (the background melody is very difficult to follow in its echoing blandness) : an effects track with a competing foreground and background melodies
12. Black Gate: NO DIFFERENCE (the drums sound slightly better on SKO, too much one-note instruments for a good sound in general) : a basic drum-heavy track
13. Pagan: NO DIFFERENCE (SKO 40 A1 is the bass headset, even it cannot fix a FLAT drum sound) : a dull drum track with non-melodic effects and plates
14. Returning Home from the Sky: SKO 40 A1 (the instruments are easy to tell apart and the frail acoustic guitar sound remains audible at all times ) – UR23i & UR10 – UR5 (the electric guitar sounds really non-clear with this one ) : a diverse guitar track with basic synth melody and placeholder drums
15. Flapper Girl: SKO 40 A1 (get this: the flat-sound drums manage to pull out a secondary melody ) – UR10 & UR23i – UR5 (minor volume issues) : a drums and electric guitar track
16. Midnight Shooter: NO DIFFERENCE (it sounds worst with SKO 40 A1 because of a terrible drum instrument at one point) : a basic synth track with nominal drums
17. Girl’s Sealing Club: NO DIFFERENCE : a synthesizer-heavy track
18. Palace of Destruction: NO DIFFERENCE : a basic synthesizer track
The ranking: I Silvercrest SKO 40 A1 (24 points, RECOMMENDED) , II Koss UR23i (14 points) , III Koss UR10 (9 points, RECOMMENDED) and the loser / the base-level-setter Koss UR5 (0 points)
Conclusions: the very low end headsets have their limits, especially after years of heavy use. The high-end, on the other hand, has no strict price-quality correlation. In this benchmark, a 16 euro car stereo headset beat a 25 euro one with identical specs with no sweat. In practice, the importance of tests and reading the reviews becomes more important.
Most importantly: if you do not play bass-heavy tracks, medium tier or medium-low tier headphones are plenty good for you. Just buy Koss ones as they last very long. From the test, you should get UR10 for very basic use or SKO 40 A1 for any bass-heavy use.
UR23i has some serious muffling issues despite being the most expensive one. The cheapest UR5 needs no recommendations — people are likely to buy the cheapest one anyway if you do not care at all. I hope Koss’s higher tier products such as Koss’ major productline brand Porta Pro (á 50 euros) can match Silvercrest SKO 40 A1 at producing a decent bass sound. I do not think Koss wants to be beat by a product from a discount chain store.
Range or other stats are not everything. The stuff you want to listen to is a much bigger factor. There already are plenty of guides about it. You only need to search for the best equipment for your intended use in your price range.
This benchmarking took about 6.0 hours of non-stop working.
UPDATE: 2.0 months later, the wires of the SKO 40 A1 are giving out. Currently one of the headphone copper wires close to the jack is almost cut and most of the time only one side is playing audio. This is a major weakness in comparison to the Koss wiring that lasts for years and I have not experienced wire cuts with its products. Two months is not much, devaluing the product. I would rather use a cheap Koss instead of a more clear though unreliable Silvercrest. Because of this, SKO 40 A1 is now the worst product in the benchmark. After all, better have bad audio than none at all 10 times out of 10.
Update 2019/07/16 : Silvercrest seems to sell completely different product with the same product code SKO 40 A1, expensive ( about 60 bucks ) Bluetooth headphones AFAIK. It is a production code, not a model code. Another note is that I later managed to damage my UR23i and my sturdy-n-cheap KPH5/UR5 beyond repair. Apparently I tend to move around in a way that tugs from the cords, making the copper wires sever an an inch from the base of the headphone plug. UR5 had even its plastic wire cover ripped from the base. I nowadays use my another 7-buck UR5 with extra duct-taping over the base area of the plug. The cheapest Koss is good enough for me. So for very rough-and-tumbly users like me, the dirt-cheap Koss KPH5 aka UR5 is the headphones for you.