V-MODA Crossfade Wireless a Mixed Bag Measurements

Measurements Wired
Click on graphs image to download .pdf for closer inspection.

Measurements Wireless

Click on graphs image to download .pdf for closer inspection.

Wired and wireless raw frequency response plots show significant similarity between these two modes of operation. I don't have any explanation for the observation that there is significantly more change in level during headphone movement across the entire frequency range in the wireless mode.

Both plots show bass emphasis starting at about 400Hz, which grows to about 13dB of emphasis (relative to the level at 500Hz) in a broad hump centered at around 100Hz. This is about 8dB too much emphasis, and it should be back to baseline at least an octave lower than 400Hz.

The rising response after the bass emphasis is probably a good thing, as is the fact that the peak of that rise is centered at 3.5kHz, but the peak is again far to emphatic (about 22dB above baseline) to be considered neutral (which would be about 12-15dB).

Ideally, after the peak at 3.5kHz response should roll-off at an ever increasing rate such that it crosses baseline at about 10kHz. Obviously, the Crossfade Wireless shows a rather uneven treble response, with a significant notch at 6-8kHz, and a significant peak at 10kHz. The 6-8kHz notch, though inaccurate, is sometimes a good thing as it reduces the tendency for piercing treble response. The elevated response at 10kHz helps give the impression that treble response is at an appropriate level even though it's too low at 6-8kHz.

My take is that the frequency response profile here has roughly a good shape, it's just that it's significantly over emphasized. As an example of a headphone that has a very similar shape, but with an appropriate amount of emphasis, I suggest having a look at the Master & Dynamic MH 40 measurements. Another interesting observation is that V-MODA does have strong relationships to the DJ world, and the latest Sennheiser DJ headphones were specifically tuned for that activity. There is a fairly strong resemblance between the V-MODA full size headphones response and the Sennheiser HD 8DJ, for example. So the tuning of V-MODA headphones may be due in part to their familiarity with using headphones in a DJ environment.

30Hz square wave plots show a significant sway back shape, which echoes the bass hump of the headphones. The wireless measurements show the tale of the waveform below zero while the wired measurements have the tale at zero. Because I don't see any significant differences at the low end of the frequency response or THD+noise plots, I see this as possible evidence of phase shift due to capacitive coupling of the internal amplifier, but I'm just guessing here.

Both 30Hz and 300Hz square waves show the headphone switches polarity when switching modes. The wired mode has proper non-inverted response.

Impulse response and 300Hz square wave show significant noise after the first transient edge, which can be expected with the uneven treble response seen elsewhere.

THD+noise plots indicate a couple of things to me. The 100dB plot is above the 90dB plot in the wired mode, indicating it my have poor power handling capability. And the 90dB plot is much higher wireless measurement than the wired measurement, which may indicate the noise I heard in the headphones when active.

The wired measurements show a headphone with a 35 Ohm impedance, having a broad primary driver resonance hump centered at about 100Hz.

Isolation in both modes is nearly identical at about average for this type of headphone with -15dBspl broadband reduction.

At 35mVrms needed to achieve 90dB at the ear in wired mode, these headphones are fairly sensitive and will be driven to solid listening levels with portable devices.

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ARTICLE CONTENTS

COMMENTS
david.parker83's picture

I believe it's AAC/AAC+ btw (will remove this message post-edit)

Tyll Hertsens's picture
Actually, I clipped that claim directly from their site. Because of your comment I had a look at wiki's entry on AAC+ but also found this excellent post about the AAC codec family. I'll change the text to AAC+ but I think there's a lot to know about the exact implementation and how it interacts particularly with your device that makes the performance of wireless transmission pretty hard to predict. I will say it generally WAY better than it was 10 years ago, and the tuning of the headphones themselves is probably more relevant than the particular codecs used as long as they're fairly modern. No need to remove your post, and thanks for your comment on the writing. I think I do a decent job of getting ideas across efficiently, but the actual quality of the prose could be way better. I'd need a different brain to get there, however.
david.parker83's picture

Maybe the marketing team got their dirty little red pens on that text before it was published to the VMODA website. :-)

tony's picture

Something happened to the sound and perhaps video quality of your reporting.

I started listening with my RS120s and noticed the crappy sound. So I switched over to my Big System and the quality was even worse.

The Colors and Image quality also seems deteriorating.

Are you having to use a cheapie jiggle Cam?

I bought a gifting pair of V-Moda phones, the folks love em. ( not wireless ) I bought them because of your review! Thanks, nice work!

Tony in Michigan

Tyll Hertsens's picture
The very expensive Canon 7D I bought for photos a year or two ago has a known bug that adds noise to the audio. Today it seemed a bit worse...maybe some random additional RF interference from somewhere. The only fix is a completely new camera for video, or to add a separate audio recorder and add another step and the video production workflow. I've not done it yet because both options suck, but I've had it with the problem at this point. You may see one more with bad sound, but I'm gonna get it fixed.
detlev24's picture

You should have a look at www.magiclantern.fm - a must have on Canon, especially for video!

Best regards

meringo's picture

I'd refrain from using in camera audio, especially when your video quality is that of the 7D. Buy a cheap audio recorder and add that in afterwards. Just my two cents. A homemade clapboard and $50-100 recorder investment would go a long way.

barun432's picture

Appreciate the honest review both in the article and the video. Your videos help people like me, who want to make an informed decision before purchase, unlike the product announcement reviews published by various websites these days who love everything and find everything amazing!!!!

BTW are you going to review the HD 800 S this year?

Merck's picture

Audio Stream is pretty bad about that. Nearly everything they review gets added to the Greatest Bits, and to top it off, it's almost always really expensive stuff. There is certainly a following for that kind of stuff but I actually prefer reading about products that might actually be at a price I may be able to afford. To each his own.

tony's picture

The 7D does far better work.

Call Canon's 800 number and have them look at the Video!

I'll bet they'll send you a New replacement.

They simply can't have their stuff performing like this. I've never seen Color Quality that rough from anything they offer including their Elphs. Betcha you got a bad processor!

On top of all that, I couldn't hear any background sounds that are quite typical of your work on Big Sound.

Something failed, anyway, they'll fix it.

Tony in Michigan

maelob's picture

Tyll - I umderstand your comments about neutral sound but as you know there are a lot of closet "bass heads" in our hobby that actuallu prefer a more colored sound signature.Also i believe this type of headphone is more apt for potable use. I found that for portable use in a noisy enviroment the colored sound signature of the Vmodas is more to my liking than even the Oppo PM-3 which in noisy enviroments i found them boring. I guess something to consider as a future topic would be how sound preferences changes in different environments.

Feilong4's picture

Sorry if this is going off topic or if you've mentioned it already but are the Ausdom M05 and Mee Audio Air-Fi/Air-Fi matrix2 essentially the same headphone but just the Ausdom M05 at a lower price?

Tyll Hertsens's picture
MEE is discontinuing it, so the OEM---who has recognized it's popularity with enthusiasts---will continue to make the same product selling it through their branded channel (Ausdom.com) as the M05.
jcheadphone's picture

Nice review Tyll! Have you ever tried this product? http://thebtunes.com I use it with my Oppo PM-3s to add wireless functionality for my Apple TV and iPad movies etc. It works and sounds great and BTunes even makes a model for some of the Bose QC cans. .

Tagjazz's picture

Hi. I have been looking at the BTunes as an option and also have Oppo PM3. Does it have enough power to make the Oppo's loud enough? I heard that the BTunes lacks volume. Would appreciate your take on it. Cheers.

jcheadphone's picture

I use the BTunes with my PM-3s and Apple TV. Even though Btunes does not have its own volume control, I'm still able to obtain plenty of volume which a few clicks to spare.

Impulse's picture

The discontinued MW600 or it's current day equivalents in the SBH52/54. I've been using the former for years, mainly with my V-Moda XS (and the M-80 previously) but also occasionally at home (NAD HP50, X2, etc).

Yeah you do need to use a cable in between (it and the headphone), but no one says it has to be a long one. I think the cable + clip on the receiver looks more ergonomically versatile than something hanging right off the bottom of the headphone cup.

I tend to use my MW600 with very short 1-3' cables and I just clip it to my shirt collar or even to the headphone's headband if I'm at home. With larger headphones you could even get away with it in the go (having it directly on the headphone that is).

The screen, playback controls, and call functionality are all nice bonuses tho Sony has a smaller/cheaper model without all but the playback controls. The MW600 has a decent amp/DAC section, at least by phone standards.

zobel's picture

and found that they list 53 different on-ear or over-ear Bluetooth wireless headphones!!!!

There were even more in-ear headsets. This looks like an entirely new category for your reviews Tyll. Where to start?

I was mainly interested in the Noontec Bluetooth 4.0 Zoro II, with lossless transmission encoding. I really like the Noontec Zorro II HD, and thought that these might be a good choice for Bluetooth. It goes for $150.

NA Blur gave it a rave review at Head-Fi, so I ordered one to give as a gift. Are you thinking about starting a section of tests and reviews of your own on the latest and greatest Bluetooth cans?

zobel's picture

I wonder how many different headphones are on the market now. It must be a staggering number. Fifteen years ago there were only a fraction of models of headphones available. Even then I remember a little shop in Bozeman MT, on Peach Street, where the staff was swimming in cans. Trivia question; Who said "We handle headphones with pitchforks here." ?

zobel's picture

That was closer to 18 years ago...

ednaz's picture

I have a number of the headphones you mentioned, right down to wearing ES5 for lawn work... the MEE wireless, which continues to baffle me by how good it sounds at the price or forgetting about price, but how little environmental isolation they have. Over ear sealed... but they don't sound that way. I also have a set of V-Moda, and specifically to listen to some types of music that I think are compatible with them, but I've found each of the V-Moda to be also very poorly isolating compared to other sealed headphones. Almost an echo of environmental noise. I've also found that the V-Moda seem to sound better with my i-devices and terrible with the few high def players I've got, for the same reasons you identify here.

I've pretty much abandoned wireless other than for bluetooth talk - one ear. I love my music, and the wires are a minuscule price to pay for great sound. My wife's a books on tape enthusiast and loves her bluetooth earphones, which I find put my teeth on edge.

Mr.TAD91's picture

Your review was as accurate as a first-rate studio monitor.

Cheers!

Dawindyk's picture

I hope M05 changes a lot compared to OOB because otherwise I have no clue what You're writing about. Yes it's cheap and sound is kinda OK but kinda at best. Soundstage is practically nonexistent, bass is boomy and uncontrolled and highs are very muted. For me it's at least as bassy as VMODA but lacks nice sparkle, details and some soundstage that was present in VMODA

Paul Williams's picture

Tyll, based on your recommendation I've just bought the Ausdom M05. Initially I thought they had a great mid range, but seemed a bit bloated in the bass and dark in the treble - but after a week's listening I really like them. I find them non-fatiguing and fun. Any chance you could measure them? Also as I'm a vinyl fan I listen to them mostly wired rather than wireless. Would they measure differently wired v wireless. (Note: I bought the cheapest Audioquest cable I could find which made them sound even better.) Thanks

alex.wood518's picture

Tyll, can you review the Shure SRH940's? I wanna here your take on them

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