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K-501 : first impressions

post #1 of 69
Thread Starter 
From the day I reached 200 hours on the K601, I found myself sincerely wishing I had posted some initial impressions so that I might be able to gauge how much of my recollection was clouded by the fogginess that comes with middle age.

I picked these up this afternoon, and folklore has it that they will need extensive burn-in, but I am willing to put a few thoughts down first. I apologise for any fanboyism and will try to keep the excalamation marks to a minimum.

- very surprised by how light and comfortable they are after the K601 - the latter are comfortable, but feel somewhat heavier.

- my kit isnt the most neutral, nor the most resolving, but listening to the 601s and my Grados has given me a pretty good idea of what to expect in terms of brightness. While there is an initial harshness to the 501 (we are talking hour one here ..) and a sibilance in the top end of male vocal, this headphone isnt anywhere near as 'in your face' as either the Grados (mosh pit) or the 601 (middle row, but with an upfront sound that some describe as harsh).

- I have read a lot about the 'notes disappearing into the blackness' on good headphones - while my kit is never going to give me 100% of that sensation, this is the first pair of headphones I have owned where I can say that I know what they mean.

- soundstage and separation are excellent, even on the fairly predictable rock I've listened to in this first hour. These headphones make me want to drag various CDs out and see what they can do with the recording.

- I appreciate the MD-10, modest performer that it is, more than I did previously. So easy to pigeonhole kit, including headphones, when you havent heard the right combinations. The Carat needs burn-in (also brand new), but this is a pocket dynamo that I think would surprise many here.

- I've read multiple posts from folk who claim that these arent a good choice for harder rock, and that they lack bass impact. All I can say is that I prefer the Grados from my brief sampling of Killswitch Engage with the 501, but there is bass aplenty here : it simply isnt HD228 bass, if that makes any sense. The crossover on drums is absolutely superb, although there does seem to be a tendency to pull the drums forward over the rest of the mix - it didnt seem that way with the Grados.

OK, so who assesses a pair of headphones based on a single hour of listening, straight out of the box ? Crazy, right, particularly with headphones that reportedly need 2-300 hours of burn-in ? Still, that could easily be what you would be doing if you auditioned a pair of phones from a store where they dont just happen to have 501/601/701s (or HD650, Beyer 770s etc) sitting around for audition. Would I have known what to expect from these if I hadnt owned the 601 ? Quite possibly not, but they seem more instantly accessible than I recall the 601 - DBT, anyone ?

Finally, Uncle Erik, I may owe you an apology - I need to get past first month fanboyism before I am prepared to admit that the pedestal in which the 501s are regarded on this forum isnt simply rose-coloured glasses.
post #2 of 69
Thread Starter 
Scrub anything I typed about the way bass impact is relayed to the listener in the 501s - I just plugged these into my CA integrated and the bass is sensational. Not 'adequate', not 'good' - sensational. Hindsight is a wonderful thing, but I really wish I had discovered these cans earlier.
post #3 of 69
Congratulation. The K501's one of my favorite acoustics and Jazz performer.
post #4 of 69
Thread Starter 
Thanks moonboy - I noticed that you have moved on to the K1000, but I hope to be able to get the message out to those of us who only have mid-priced cans that the K501 is a long way from the stereotype it seems to have been lumped with here in Head-Fi. No doubt someone will tell me that they don't have the necessary attack for hard rock, but I like what I'm hearing and thats the litmus test for mine. I definitely wasnt inclined to launch into this sort of fanboy rant with the Grados or the Ultrasones, both quite recent additions - as I said, reversing expectations is a powerful thing.
post #5 of 69
Thread Starter 
Just stumbled on the K501 version thread - as much as I am inclined to put a lot of it down to Head-Fi wishful thinking, it is entirely possible that my 501s are from a mystical final batch that AKG modified to instill more bass in these headphones. Not sure exactly why they would do that if they were in the process of touting the advantages of the 601/70* phones, but who knows : the change may have been signed off months before they had the new phones in production. If its true, it explains what I've been hearing tonite.
post #6 of 69
Quote:
Originally Posted by estreeter View Post
Just stumbled on the K501 version thread - as much as I am inclined to put a lot of it down to Head-Fi wishful thinking, it is entirely possible that my 501s are from a mystical final batch that AKG modified to instill more bass in these headphones. Not sure exactly why they would do that if they were in the process of touting the advantages of the 601/70* phones, but who knows : the change may have been signed off months before they had the new phones in production. If its true, it explains what I've been hearing tonite.
Many people here said that the hd 800 are bass light,but i found them to have just the right quantity of bass,(not less than my hd 600 on the same setup).

You know,people usually like strong bass,and if a headphone has balanced sound,they are not impressed.

Good heaqdphones should have a balanced and refined sound,so when you upgrade your equipment,they will start show their true potential.That's why some headphones may sound a bit boring or bass light etc,out of not so good setups.
post #7 of 69
Congrats to your K501. I feel the same about my K400 - people said they don't have enough weight and body for rock etc., but I feel they are great for any genre I've thrown at them.
post #8 of 69
Thread Starter 
Thanks guys.

To further document this, I am burning the 501s in with the Topaz and my SR325is - the latter had a few hours on them, but nothing like the 150 some claim they need. The Topaz distributor here claims the amp also needs 150 hours, so its this weekend and much of next week shot. I am doing this for two reasons:

1. if I dont, the inevitable 'how much burn-in did you give it ?' will arise
2. its a good way to ensure that I dont have a dud, particularly in the case of the Topaz. So far, its been excellent - fingers crossed.

Captains Log - 14 hour mark

Basically, I am cycling both phones between my integrated and the Topaz every 8 or so hours - briefly listening in the process - and these are two very different cans. Any 'ear burn-in' that may have already taken place with the Grados inevitably has me questioning whether the 501 is recessed in the mids. The initial sibilance appears to have disappeared, but there is a hollowness to the sound which may simply be the effect of moving from the Grados to the 501s so quickly. Again, not sure who makes a judgement this early, but I am keen to keep logging my perceptions. More tonight.
post #9 of 69
Thread Starter 
Another 21 hours in and the only part of the puzzle that doesnt seem to have changed is the Topaz - its aggressive as hell. If we do rely on ear burn-in to acclimatise to the sound of new kit, Topaz owners must be a hardy lot if they are prepared to burn the little guy in with phones on their head ..... the consensus in the review thread was that its a great DAC and a reasonable headphone amp, and it was interesting to note that there was some consternation over the burn-in time until the Styleaudio rep insisted that it was 150 hours : I suspect that some of the earlier reviewers were subjected to the little wasps nest I currently have in my living room.

It also gets quite warm to the touch (our days are getting hot here in Brissie), so I gave it the night off last night. My CA integrated, by contrast, has run non-stop without a problem, and both phones sound really good from this amp. The 501, in particular, seems to be opening up, but that may be the weight of my high expectations. Neither the AKG nor the Grados mate well with the Topaz at the moment, but it really brings out the worst in the 325is : blistering treble that would melt your brain if you auditioned this combo. Plug them into the CA, same playlist (I have various DAPs providing my 'loop') and its liquid gold - really wish the 325's detractors could hear this. Interestingly, the Topaz is tamed somewhat through my K601, the only phone that I can guarantee has more than 200 hours - sure, my ears know what to expect, but many here claim that there isnt a lot of difference between the 501 and the 601, yet they are two very different experiences from the angry little Topaz. This little guy has so much oomph, but I am looking forward to that magical 150 hour mark - if burn-in is all in our heads, its unlikely to come with this amp : I will simply use it as a DAC and route the outputs into my integrated if the aggression doesnt disaappear.

Tally : phones - 35 hours, Topaz - 24 hours

More tonight.
post #10 of 69
When I owned them, I found the 325i decidedly treble-tipped, but with almost asymptotic high frequency detail/transparency. Right now, I am reduced to the AMC XIA integrated and the K501, which I had re-cabled with UP-OCC solid silver wire. A surprisingly nice match.

I like early/period music (like Ensemble PAN, The Baltimore Consort, The Hilliard Ensemble, Sequentia, etc.), and the K501 serve it up very, very well. Remarkably coherent, with fine midrange. But I can also appreciate Santana's Abraxas with the K501, when the mood strikes--which, admittedly, is becoming less and less frequently.

Congratulations and enjoy the truly fine 'phones these K501 are. : )
post #11 of 69
The K501 is one of my favorite cans and I have had mine for at least 3 years, like pataburd mine have been recabled w/ a silver plated copper (APureSound V3) and they sound superb to me.
post #12 of 69
Quote:
Originally Posted by mrarroyo View Post
The K501 is one of my favorite cans and I have had mine for at least 3 years, like pataburd mine have been recabled w/ a silver plated copper (APureSound V3) and they sound superb to me.
Mr. A,
I did have the opportunity to own/hear the K501 with the APS V2 (single entry) re-cable and was pretty impressed with the enhanced sense of transparency. After buying a new set of K501 with the intention of getting them V3 re-cabled, I balked at the price and opted instead for the UP-OCC (which Zach, of Enigma Audio, did for me).

The UP-OCC brings out a level of detail and tonal clarity missing in the stock cable, as well as improving upon the already excellent coherency of the stock K501.

It would be an interesting a/b: the APS V3 and the silver UP-OCC with the K501. : )

Right now, I'm listening to Ensemble PAN, The Island of St. Hylarion, on the New Albion Records label: simply captivating over the K501!

PAB

(I'm making up for all of the exclamation marks that estreeter had foresworn.)
post #13 of 69
Thread Starter 
12 hours on :

Phones - 52 hours, Topaz - 36 hours

The amp is behaving itself - less aggressive and less heat - but my earlier post was as much about the perils of firing up a cold amp first thing in the morning as it was about my burn-in experiences. Still, the chasm between my integrated and the Topaz remains huge - everything from the warmth of the sound to the separation between instruments improves the instant I move either set of phones back to the integrated. Havent done the little guy any favours by migrating it to my Mac Mini - some fairly ordinary 128K iTunes rips in that mix, and it really shines a bright, harsh light on anything that isnt up to scratch : both phones are happy to pass that displeasure onto one's ears. Time to go out and buy CDs for the stuff I want, trash the rest, and send a letter to Apple voicing my displeasure that it took them so long to move to 256K.

From the integrated, I still prefer the Grados, but the 501s are very enjoyable. The Topaz reportedly begins to settle down somewhere around 50 hours, according to the review thread, and is burnt in by 150 : as much as another week of this doesnt thrill me, there is a perverse joy in continually messing with my 'ear burn-in' by cycling cans/sources/amps. The 501s, if the mythology is to be believed, will be fully burnt in sometime around 2014. Happy days.
post #14 of 69
Thread Starter 
12 more hours:

Phones - 64 hours, Topaz - 48 hours

Not sure how much value there is in anyone giving their impressions of anything on a (groan) Monday morning, but here goes:

- if the Grados (or my ears..) aren't completely burnt in, I can only wonder how much better they could possibly get : I am removing them from the mix and concentrating on the 501s. To my ears, the jagged highs these phones are notorious for completely disappear from both my integrated and my Sony DAP - still there from the Topaz, but significantly subdued from those initial hours together. That said, I have been willing to live with the treble from day one, so perhaps I'm not the best judge on that score.

- my mix-and-match strategy has made it hard for my ears to burn in to the 501s, and they still sound a bit hollow after the Grados, particularly from the Topaz. Still plenty of detail, but the comfies put the Grado drivers right next to my ears and that gives them an advantage, IMO. How anyone could make a fair assessment switching from one to another in a shop escapes me - you really need to sit down and listen to each of them for 20 minutes at a time. There is a laidback aspect to the 501s that I find immensely appealing after the attack of the 325s.

- the Topaz, at roughly 48 hours, sounds much the same as it did at 36. I will turn it off before I go to work and see what my impressions are tonight, including some time with the unit in DAC-only mode, phones plugged into my integrated.

As I said, assessing anything on a Monday morning probably isnt the best idea I ever had.
post #15 of 69
How do you find soundstaging of the two headphones? It's one of the characteristics I love the most about my K400 and Grados are not that good at it, FWIR (the only "Grado" I have is Alessandro MS1 and soundstage on them is practically nonexistent when compared to the AKGs...).
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