KRK KNS6400 Studio Headphones

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List Price: $149.00
Sale Price: $88.00
Today's Bonus: 41% Off

• Voiced to remain true to the character of KRK's class leading studio monitors, developed with 25 years of years of experience in studio sound.
• The latest reference quality frequency response for closed-back, circum-aural dynamic headphones.
• Newly developed headphone acoustical system bringing a new level of headphone performance for the first time.
• A new standard in headphone comfort, even over extended periods of use, designed to avoid feeling uncomfortable especially during long periods of use. The special foam conforms to the ear to help ensure an improved fit.
• Exceedingly accurate natural and wide frequency response.
• Voiced to remain true to the character of KRK's class leading studio monitors, developed with 25 years of years of experience in studio sound.
• The latest reference quality frequency response for closed-back, circum-aural dynamic headphones.
• Newly developed headphone acoustical system bringing a new level of headphone performance for the first time.
• Exceedingly accurate natural and wide frequency response.
• True to the character of KRK's class leading studio monitors, developed with 25 years of years of experience in studio sound.
• A new standard in headphone comfort, even over extended periods of use, designed to avoid feeling uncomfortable especially during long periods of use
• The special foam conforms to the ear to help ensure an improved fit.
• Designed to avoid feeling uncomfortable especially during long periods of use.

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The KRK name speaks for itself. And these headphones live up to the name. They have excellent reproduction across all frequencies, from what I can tell, especially in the bass range. In my home studio I created a pop-style mix with a vocal track over multiple orchestral instruments, and these headphone monitors never let me down. The final mix turned out wonderfully.

The KRKs are cushioned and comfortable to wear for long periods of time. They have good sound insulation to cut out background noise, but are breathable enough so that you don't sweat.

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With a fascinating combo of extreme extension and a balanced frequency response reminiscent of the Beyerdynamic DT880-600 (sans the Beyer's unfortunate treble peak), the KRK 6400 is my current pick for headphone under $100 with the best combination in this bracket I've come across of acceptable speed, extension, balance, and fairly, though imperfect, low distortion throughout its wide frequency response. It's not quite as low distortion as some others, which will prevent it from knocking anyone's socks off with musicality. Precise enough imaging, but not a particularly large soundstage even for a closed headphone. Not quite as flat as some. Has a slight dip in the 60hz band. And it's a little over-damped and lacking in refinement, resolution, and midrange articulation (e.g. the Sony 7506 has flatter midrange and better voice clarity). But with a good amp to keep the bass tuneful and free from excessive roll-off (no bass boost, either), it's pretty hard to fault for the price. Things are even, easy to pick out, and all in their right place and unsweetened even without cranking it up. I'd like it to be sweeter. I'd like it to be more musical and refined. I'd like it to be a sonic hologram stretching out far around my head. It's not, but it's great for monitoring and good for listening. And it's under a hundred bucks. My physical complaints: The headband can become uncomfortable, in spite of the obvious attempt to remedy this with a gap in the middle. You may want to replace the headband pad with a spare memory foam one from the KRK 8400 replacement parts, which can be purchased separately. The detachable cable is also fairly stiff and microphonic.

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I heard quite a bit of buzz about these before I purchased them. My friend (a protege of mine who is getting into producing dubstep and the like) got a pair (of the KNS-6400) and I had a chance to check them out and was impressed. I auditioned them further at guitar center off of an ipod and they responded extremely well to some skrillex and DJ Tiesto. I picked up a pair that same day. I've had them for about 9 months now and realized (a few days ago) I wanted a second reference set of phones. Again, Guitar Center had a great deal on a set of Audio Technica ATH-M45s. Picked those up (they were the white ones) and noticed that listening to the Audio Technica's (as much as I had liked the KRKs up to this point) opened up gobs more detail and richness in each of the recordings I auditioned. All of the songs I had mixed on the KRKs were excellent sounding on the Audio Technicas (the KRK's always tended to translate rather well for mixing duties) but I noticed a immense amount more bass depth and detail and a higher degree of "immediacy" from the Audio Technica's. Things were simply more exciting sounding... somehow.

First song I tried mixing on the Audio Technica's (ATH-M45s) turned out way better than I had anticipated. Pleasant surprise.

There's an interesting trade-off here for the KRK KNS-6400 that I've noticed from my experience in using the amount of headphones I have over the years (I've owned a lot of phones/headphone amps/interfaces). The KRK's seem to strike a tonal balance that is conducive towards mixing that will translate very well across playback platforms. I've written a good deal of songs through the KRKs and they always tended to sound very "even" on any system I tried them on (with the exception of managing low-bass, this was actually somewhat problematic). In comparison, the Audio Technica ATH-M45s made it easier to really enjoy mixing (sounds just felt more real and alive) but caused the overall mix balance to apparently suffer a bit (at least upon a couple initial comparisons with reference songs). It gets even more interesting though, because the more I listened through the KRKs to the song I just finished mixing on the Audio Technica's, the more I actually started to prefer the tonal balance of my own song to that of reference commercial pieces that I typically use in comparison. For as many years as I've spent mixing, I've come across strange scenarios like this on a somewhat frequent basis that are especially confounding.

What I think it boils down to is this. The KRK KNS-6400s are really decent phones. They allow for very accurate mix balancing in terms of the scope of frequency spectrum (expect problems in the low-bass where they lack definition and extension). However, they don't make mixing all that exciting. The can definitely do the job and if the level of detail is what you want then they could very well be a great fit as they have for many other people. But something about what I was able to accomplish with the Audio Technica's was so much more immediately satisfying in terms of crafting an end-product from both a production and mixing perspective that I can't really look back. The KRKs do (in direct comparison) actually sound a little hollow I suppose. I don't think what I'm describing is really a factor of frequency response per say. I could see how people would really like this set. I can also see how you might come to the same conclusion as I did. I never had that "wow" moment with the KRKs where I was so impressed with a mix that I just sat there wondering how it ended up sounding so good when (by all considerations) it really shouldn't have. The KRKs always just sort of delivered what I generally expected from them.

I prefer being pleasantly surprised. Other phones have done that for me. The KRKs will make an excellent second reference set however.

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If you desire some bass-heavy, fun, fashionable cans for pop/rock/hip-hop, look elsewhere. If you would rather enjoy clear, unaltered sound that closely resembles the artists' intentions, look no further. The KRK KNS6400s are incredibly flat, but they are by no means dull. I know there are so many different headphone makes and models out there just buy these! I was content with them right out of the box. (I've played instruments and listened to music all my life, Btw.) Comment if you have a question!

I do not usually write reviews, but this time I must do it.

I have to say, the KRK marketing and customer reviews are for real. I own several headsets and headphones. For gaming, I have the Logitech G35, Sennheiser PC-350, Plantronics GameCom 777. My most recent configuration before the KRK Headphone purchase was the sb08880 Titanium Sound Blaster and the PC-350. I have used the PC-350 with Extreme Gamer and Bravura sound cards. I wanted a headphone to get the most out of my music, because the headsets are not quite right for music and movies. On the internet, some forum comments on the KRK made be interested to do more research. Even after all the research, I was still skeptical and thought that many of the reviewer comments were just hype. Well, now that I have these bad boys, they are for real. The headphone presents the music as it is and originally recorded. There are no undesired built-in enhancements by the headphone. With or without an AMP, this headphone surpasses the sound quality of my headsets and I sort of expected this increased quality for music and movies. I was impressed even more when I used the KRK 6400 in gaming and made my subjective comparisons. Even gaming with the internal sound cards and USB surround sound emulators, the KRK is superior in clarity and positioning. In fact, I forget I have on the headphone, because the sounds are so precise and realistic. I hear sound I have not heard with my other headsets built specifically for gaming.

Do not be mislead by the price of the KRK 6400. Initially, I could not imagine a headphone that cost less than any one of the headsets or headphones I own or have owned could be so superior. Yet, the KRK 6400 is far superior to the other, in my opinion.

The soundstage and 3D positioning is perfect in gaming. The presentation of the music is so accurate, I hear sounds in songs I have never heard before now. The KNS6400 is worth more than the cost.