Sony MDR-D66 "Eggo" Review
May 26, 2003 at 7:31 PM Thread Starter Post #1 of 34

fiddler

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Sony MDR-D66 "Eggo" Review

Initially, I was very impressed with these headphones. Compared to other sub-$100 headphones, they seemed to convey to me far more clarity and detail without sounding grainy or analytical. They have some good qualities that can't be found in other headphones in this price range, such as the MDR-V6 and the Koss Porta Pro line, including the KSC-35. However, with extended listening I've found a few quirks about this headphone that I find troubling.

Personally, I don't find these headphones particularly appealing aesthetics-wise. They're been obviously geared towards teenagers and younger. They just don't quite look like $100 headphones in my opinion. When I first picked them up, they felt plasticky and cheap. The plastic earcups feel hollow when you tap them. Despite all of this, they are built quite solidly, just not on the same level as say, the MDR-V6. They fold up into a ball which makes them somewhat portable. They might fit into a coat pocket, but I wouldn't try shoving these into your pants. If you want something more portable, you should consider the Koss KSC-35.

The Eggo earcups are rather narrow and takes some time to put on your ears, particularly if you have larger ears like me. You have to tuck the cartilage of your ears into the cups for them to fit comfortably. They feel quite comfy after that. They are completely circumaural on me, but they don't block out a whole lot of sound. If my memory serves me correctly, the MDR-V6 had more isolation than the Eggos. They are closed however, so they will give you more isolation than any open phone. They leak a lot less sound than say, the Sennheiser HD600. Listening at "normal" volume levels, I'd say that sound leakage isn't a major issue with the Eggos.

From my initial listening, the first thing that hit me was seemingly smooth midrange. They seemed to have good treble extension, and tight, controlled bass. I know many people have complained about the Eggos lacking bass, but I don’t quite think this is the main weakness of these headphones.

Let’s talk about that midrange. This is where the heart of the music lies, where most of the “emotion” is conveyed. Cymbal splashes accentuate, while double bass drones form harmonic foundations, but neither are usually the main feature in most pieces of music. In my view, how a pair of headphones conveys midrange defines to a large extent its overall character. In the Eggo’s case, midrange performance varies wildly from source to source, from amp to amp. I’ve come to the conclusion that the Eggos have a general upward tilt in the frequency response (hence “bright”), with a peak somewhere in the upper midrange. I often heard an artificial glossiness in this region of the spectrum, such as when the violin section of an orchestra is wailing away on high notes. This was particularly apparent using a brighter source (CT570) and a brighter amp (META42 with AD8620). The result was utterly unpleasant; the aforementioned violins sounded glossed over with no definition or details whatsoever, yet at the same time they were in the forefront because of the slight brightness I sense in these phones. On the other hand, switching over to a rather bottom-heavy source with rolled off highs, my Sony SRF-S84 pocket radio with Fixup’s mods, the same glossiness in the midrange becomes pleasant, and the audible spectrum from bass to treble is far more balanced. With anything more high-rez than this radio, the sound becomes thin, tinny and “meatless”. For example, listening to a string quartet piece, if it’s only the cello, viola and second violin playing lower notes, the sound is well balanced. However, as soon as the first violin enters (particularly if it’s on the higher end of the instrument’s range), the balance is thrown off; it sounds as though the first violin just doesn’t belong in the music. This sort of reminded me of my first audition of the Grado SR325 which I found to be unbearably bright. Perhaps fans of Grado’s SR series would appreciate the Eggo sound, but being an HD600 kinda guy, the Eggos are just too bright for my tastes. Despite the brightness, I didn’t hear any obvious harshness in the treble. They seem to have more treble extention than the Koss KSC-35. The result is a lot more “air” around instruments, and a better sense of the recording venue and its acoustics. The bass doesn’t go as deep as I’d like it to go, but this is a minor quibble in comparison with the upper midrange problem. All in all, they just sound too artificial and incoherent to my ears. But hey, what can ya do? There’s really not much other choice when it comes to headphones that cost under $100. With headphones in this price range, you have to make compromises, and it’s all up to your taste to decide which compromises should be made over others. Personally, I don’t think I can live with the Eggos and their smeared upper midrange. I think I might stick with my KSC-35 for portable use, for now.
 
May 26, 2003 at 7:36 PM Post #2 of 34
Excellent review my friend!
-Mag
 
May 26, 2003 at 7:51 PM Post #3 of 34
I just got a D66 myself. In general I agree with your review about this headphone. It's quite unlistenable with my Sugden source/amp. However, it seems to work better with Corda setup. I only listened to it for about half an hour, I'm going to experiment it a little more.

Thanks for the review, fiddler!
smily_headphones1.gif
 
May 26, 2003 at 8:12 PM Post #5 of 34
Quote:

Perhaps fans of Grado's SR series would appreciate the Eggo sound, but being an HD600 kinda guy, the Eggos are just too bright for my tastes.


Maybe that's why I really like the Eggo sound. However, I don't find them to be bright at all, at least in comparison to the SR-325s. To my ears, the Eggos are extremely well balanced headphones and do not emphasize any part of the frequency spectrum at the expense of any other part.
Then again, I haven't listened to any classical music on them........this might change my perception.
Nice review, fiddler.......thanks for sharing.
biggrin.gif
 
May 26, 2003 at 8:19 PM Post #6 of 34
Like joelongwood, I too chime in supporting the Grado / Eggo correlation. I love my SR325s and think the Eggos are just dandy (to use a technical term).
tongue.gif
 
May 26, 2003 at 9:19 PM Post #7 of 34
as far as appearance goes, i like the eggos. they are quite unobtrusive, and really dont bring attention to the wearer. i like this. also, their unique design allows for many different "wearing styles", to aim the cans at ones friend or something, or just to keep an ear free. i love the eggos. coincedentaly, i dislike the ksc-35s... the brightness of the eggos is perfect for punk, rock, and some metal. the lack of bass is somewhat disappointing, but my little cmoy deals with this nicely. as soon as i get more money, i intend to pick up a pair of d77s.... cant wait! i hear theyre everything this eggos have, and everything they dont! yay
 
May 26, 2003 at 11:12 PM Post #8 of 34
I'll note that I did most of my listening on classical stuff, and a bit of jazz. I wonder if SR325 fans like Eggos, HD600 fans dislike them?
 
May 26, 2003 at 11:35 PM Post #9 of 34
Quote:

Originally posted by fiddler
Sony MDR-D66 "Eggo" Review

Initially, I was very impressed with these headphones. Compared to other sub-$100 headphones, they seemed to convey to me far more clarity and detail without sounding grainy or analytical. They have some good qualities that can't be found in other headphones in this price range, such as the MDR-V6 and the Koss Porta Pro line, including the KSC-35. However, with extended listening I've found a few quirks about this headphone that I find troubling.


Remember the eggos are engineered to use with low-powered portables. Driving them with high-power amps may not be the best thing for them. Connect them to a CD or an MD player and then listen.
 
May 26, 2003 at 11:48 PM Post #10 of 34
Quote:

Originally posted by Mike Scarpitti
Remember the eggos are engineered to use with low-powered portables. Driving them with high-power amps may not be the best thing for them. Connect them to a CD or an MD player and then listen.


Do you think somethign as small as a super-mini or cmoy or mint is overkill with an iPod or other not-so-low-power portable?
 
May 26, 2003 at 11:51 PM Post #11 of 34
Quote:

Originally posted by sonichead
Do you think somethign as small as a super-mini or cmoy or mint is overkill with an iPod or other not-so-low-power portable?


I don't know the products you mention here, but I'm sure that Sony has designed the eggos for use with low-power amps. They may(!) sound worse with more power.
 
May 27, 2003 at 12:06 AM Post #12 of 34
Quote:

Originally posted by Mike Scarpitti
Remember the eggos are engineered to use with low-powered portables. Driving them with high-power amps may not be the best thing for them. Connect them to a CD or an MD player and then listen.


I listened straight out of the headphone jack of the CT570 PCDP as well. My opinions remain unchanged. Keep in mind that my point of reference for this particular review is other sub-$100 headphones which in general (particularly in the case of the KSC-35) are also designed to be driven by less-than-ideal amplification.
 
May 27, 2003 at 5:46 AM Post #13 of 34
Nice review, fiddler. It's probably been pointed out before, but it seems that alot of Sony headphones tend to the bright side (v6, d66, those crappy clip ons I can't remember the name of) and their portables tend to the dark side. Is this just some eccentric matching on Sony's part?
 
May 27, 2003 at 8:35 AM Post #14 of 34
So Fiddler, what are your plans for the D66?
 
May 27, 2003 at 9:44 AM Post #15 of 34
Quote:

Originally posted by Davie
Nice review, fiddler. It's probably been pointed out before, but it seems that alot of Sony headphones tend to the bright side (v6, d66, those crappy clip ons I can't remember the name of) and their portables tend to the dark side. Is this just some eccentric matching on Sony's part?


Eccentric matching or eccentric marketing? That's crazy; I'd never known that about Sony gear... Maybe when people say "Team Sony," they REALLY mean it.
 

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