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Scosche RH1060 ($199)
If the Koss BT540i is a Plain Jane, then the Scosche RH1060 is a big, fat drag queen. A bulbous and cumbersome agglomeration of curvaceous gloss black plastic with shiny bits as accents. Fortunately, other than their garish looks, they're a pretty nice BT headphone at this price.

Earpieces fold up and inward for storage and transport in the included hard-side clam-shell case. Ear pads are real leather covered with memory foam underneath, and are fairly spacious providing a comfortable, though a bit warm, fit. Headband pad touches only at the top…

MEElectronics Air-Fi Matrix2 AF62 ($129)
Oh. My. Goodness. This is an awesome BT headphone! And at the $90 price you can get at Amazon, this is a ridiculously good value proposition. Ed Note: Price is rapidly changing upward at the moment, get 'em while they're cheap.

One might be tempted to chuckle at the carbon fiber pattern imprinted in the cheap vinyl padded coverings on the outside of the ear pieces and headband, but upon reflection I've decided it's a pretty masterful way of using low-cost materials. Similarly, the matte black plastic of the rest of the…

Summary
There are a heck of a lot of Bluetooth headphones out there and this survey is not much more than a sampling to indicate where this category performs. My take? Headphones of all kinds have gotten quite a bit better over the last five years and Bluetooth headphones have kept up the pace. But, they still lag behind in sound quality relative to their passively wired brethren. Bluetooth itself is now a pretty damned good audio transport, but all that electronics and batteries shoved into the ear capsules makes it tough on the designers. My guess is they'll keep working on…

Some introductory thoughts on Koss.
I have to admit significant mixed feelings about Koss. On the one hand, they've produced some truly excellent headphones in terms of value/dollar. The Porta-Pro (reviewed here), KSC-75 (and earlier variants), and ESP 950 headphones have had a strong following and fan base in the headphone hobby since day one. There's even a meme of sorts among enthusiasts giving advice to novices entering the fray, "Buy a set of Porta-Pros, then, if you can find something better, get it." Many experienced…

Measurements

Raw frequency response measurements show an ear pad that varies some with bass placement. In listening tests it became apparent that the actual ability to seal and deliver bass response was much worse in real listening situations. (I guess I try to be careful when taking the measurements. I think it would be very difficult to have the goal to recreate real-world listening performance when positioning the headphones, as opposed to trying for best seal in each position.) If these headphones don't seal…

Master & Dynamic MH40 ($399)
"My goodness, what a striking headphone," was my first thought laying eyes on the sealed, around-ear, Master & Dynamic MH40. My impressions remained quite similar during my first listening tests. Now, with many months experience, I can say with surety, "striking" is an excellent descriptor.

Let's start with the look of these cans...which is for me a strike right down the middle of my modern-day geek sensibilities. Real leather, real metal, stitching and texture, utilitarian yet…

Sound Quality
Now that I've spent a little time complaining about the problems of a strongly sealed headphone, I'll do an about face and mention what seems to be their characteristic strengths: dynamics. Maybe it's the tight pressure coupling of the driver into the ear that does it, but holy mackerel, what ever it is, the MH40 hits hard. Unfortunately I can't find it again, but a quote from one of the Head-Fi threads on the MH40 keeps repeating itself inside my…

Raw frequency response plots show a headphone with significant changes in response due to positional changes on the ear. These cans were quite challenging to move on the ears and get good measurements; I spent quite a bit of time in each position to ensure a good seal. Because it was so cumbersome, I did allow one set of measurements with poor bass response into the set as it probably is indicative of how they will get heard on the head at times. You can see that changes in seal effects response all the way…

Audio Technica ATH-MSR7 ($249)
Saw these at CES with their official "Hi-Res Audio" sticker. My mind's first thought: Yeah right, like "Digital Ready" meant anything either. Turns out the label is pretty darned accurate.

The ATH-MSR7 is a circumaural, sealed headphone with a 45mm angled driver. The styling is handsome and conservative with a pretty nice mixture of materials for a headphone at this price. It does bare a striking resemblance to the Sony MDR-1R. With both in hand I'd say the Sony looks better with excellent…

Sound Quality
It's been a tough week around the InnerFidelity lab. I've got the Pono in and have been blind testing it against all sorts of stuff. Blind testing is a pain in the butt, and definitely not the way I like to listen...but it's got to be done. The trick with the Pono is I've got to use a roughly 30-50 Ohm relatively efficient headphone for volume matching with all the other things I'm testing it against—I'll go into why in the Pono review—and it's got to have killer resolution as blind testing Amp/DACs requires the ability to hear into the very finest details. I had…