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AudioFly AF78 - a new earphone king

technologyEdward Kiledjian

What am I looking for?

Before I review the Audiofly 78 with microphone, I wanted to take 2 minutes and explain what I look for in headphones or earphones. 

When testing audio gear (particularly headphones and earphones), I am looking for flat frequency response. Flat doesn't mean boring but rather it means the headphones reproduce the soundtrack exactly as the producer intended it.

When travelling or working, I may have my headphones on hour hours and therefore I am looking for a sound profile that doesn't tire my ears and I look for products that are comfortable to wear. 

I believe that you get what you pay for and I am willing to pay for quality products so I also expect my gear to be durable,

I tend to use my audio gear in noisy environments (on city streets, in a crowded office, on planes, on trains, etc) therefore I prefer devices that offer passive noise isolation ( I find active noise cancellation products tiresome after an hour or two of use.

Finally I pay close attention to the price/value ratio of the products I buy and test. Like most of my readers, I am prepared to pay more for quality and performance but don't have an unlimited budget.

What is the Audiofly 78 with microphone?

I tested the Audiofly AF-33 headphones in June (link) and was disappointed with the product.  When I decided to test the higher end Audiofly Af-78 earphones, I was cautiously pessimistic but I was wrong... These are fantastic and keep reading to find out why.

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Fit, design and build

The kit comes comes with sizes of silicon eartips and 2 pairs of Comply Foam tips. Like every other in-ear earphone that I have tested over the last 5 years, it is critically important (for noise isolation and sound quality) to find the right sized tip. After testing the silicon tips (medium worked for me), I went back to the Comply Foam tips they provided. Almost every earphone that I own is equipped with these tips because they provide an excellent seal, great noise isolation and are comfortable enough to wear for hours. I love the fact that they included Comply Foam tips in the base kit (great decision).

You'll notice that each earpiece has a larger enclosure than most in this class and I was worried this would make the umcomfortable for extended wear but it didn't. The design of the earpice is well thought out and the weight is properly balanced on the base of the ear therefore there is no excessive  weight to carry.

AF78.jpg

Audio fly describes the AF078's cable as:

"twisted core, Kevlar® reinforced conductors and a CORDURA™ fabric outer sheath for outstanding durability."

Marketing speak aside, the cable feels extremely durable (much better than the original cable provided with the UE Triple-Fi 10 or the Etymotic HF3). The cable feels solid, well built and is fairly tangle resistant. 

The design decisions do mean that you won't be able to wear the headphones "behind the ear style" but I don't wear my headphones like that anyway so this really doesn't impact me. 

There are 2 versions of this product:

  • without microphone & remove
  • with microphone & remote

I tested the later and call quality was excellent on both ends. I tested the call quality on a busy street, in the car while driving highway speed and in a quiet room. In all 3 cases the other party (to the call) didn't know I was using a headset and when asked said the quality of the call was excellent.

It's all about the sound

The headphones are rate for 18 Hz - 22 Khz which is a fantastic range. These specs should provide an incredibly wide soundstage and clear separation. Do the earphones deliver? In a word Yes.

Before testing the headphones, I ran them through 50 hours of burn-in as such

  • 10 hours of white noise
  • 10 hours of pink noise
  • 10 hours of brown noise
  • 10 hours of sweeping audio which pushes the drivers though different frequency responses (low medium and high)
  • 10 hours of various types of music

Once these were completed, I then performed a series of objective audio tests (most reviews just play music they like to evaluate headgear, I wanted something more).

Frequency Response tests

First I tested the bass extension using frequencies from 10 hz to 200 hz. This test is meant to confirm the low range frequency response of the headphones. The AF78 passed this test

Then I moved to the treble extension test which tests the high end frequencies from 22Khz to 8 Khz. Again the Af-78 performed very well and passed this test with flying colours.

Dynamic range of the AF-78

The purpose of this exercise is to compare how the earphone reproduces sound between the highest signal and the quietest. This is a great way to test the isolation capabilities of the headphone as you compare the loudest and quietest sounds together. 

In my tests (un the quiet room), I was able to hear 66 db below full scale which is an excellent result. This shows that the earphones isolation is great and will allow for the reproduction of delicately nuanced music.

This test was performed in a quiet room, on a busy city street and in the middle of a busy retail store full of shoppers. Performance was excellent in every one of the scenarios.  

Testing for internal build quality

I have a special soundtrack that plays sweeping bass frequencies (used at high volumes) and I am looking for rattling sounds, buzz or other audio artifacts which would indicate bad build quality. 

The Audiofly AF-78 passed this test with flying colours. No artifacts were introduced.

3D audio test

I have various high quality 3d (holographic) soundtracks which allow me to test how well the earphones reproduce 3D sound. 3D sound is a reproduction of hour the human ear works and reproduces sound where you can clearly make our the origin of the sound in a 360 degree soundstage (even estimating distance).

The Audiofly AF-78 passed this test with flying colours.

Wiring test

I have an spoken word audio track that has cleanly separated left and right channel audio (each clearly identified as left fed or right fed audio). This is a simple test to ensure the right channel is wired into the right earphone and that there is no crosstalk.

On to the music

The AF78 is a balanced and dynamic armature setup which means everything you listen to sounds spacious, clean and crisp. It reproduces sound with a nice balanced tone and has the ability to churn out clean, crisp bass when called for. 

I tested the Audiofly AF78 with many different styles of music and it performed properly for all types (which is what I was expecting with a properly balanced sound profile): rock, hip hop, R&B, jazz, metal, bluegrass, country, acoustic, opera and classical.

Comparing this to other earphones in its price range, it performed fantastically well. The only negative comparison I could make was with comparing the vocal quaity (opera) of this versus my Triple-fi 10 pro. The triple-fi seemed to offer better vocal output. Its important to remember that the triple-fi 10 is a considerably more expensive earphone and has "3 individual speakers and an integrated passive crossover circuit board directs low-end frequencies to a dedicated speaker for bass".

When listening to an orchestral recording, I could easily make out each instrument. Everything sounded natural as if I was listening to it live. It didn't feel like the music was being pushed through a small device but that it was surrounding me with well spaced airy reproduction. 

Quality of music

Most earphones I test are not this high quality so I don't notice a difference between an MP3 recording or a lossless format. The AF78 is different. Because of its great sound reproduction capabilities, I could hear the quality difference between lossless and lossy formats.

This means the earphones are truly well designed and high quality. It is also important for me to note that the quality of your recordings is important. If your entire collection is based on 96kbit/s MP3s then you won't be getting the best performance from these little earphones. 

If you use iTunes Match, even your crappy recordings will be made available in 256-Kbps AAC which will greatly increase audio quality.

Verdict

Audiofly has done something fantastic with these sub $200 headphones. The balanced armature and dynamic driver combination are not unique to Audiofly but still very rare. I enjoyed testing these earphones and highly recommend them. 

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Monoprice 8320 Earphones - Amazing $7 headphones you have to try

technologyEdward Kiledjian

I love headphones and have relied on these 2 models as my go to devices: 

You wouldn’t catch me dead with a sub-100$ pair of headphones because they usually sound as good as music playing through a can of soup. Imagine my surprise when I tried the Monoprice 8320 and found them decent (they cost less than $7).

The only reason I tried these was because of the Monoprice name. For those that don’t know, I love Monoprice because they offer great quality items at very competitive prices. The headphones do them proud. For a measly $7, you get 14.2mm drivers (larger than most sub $50 earphones), a 48” cloth covered cord (which feels nice and solid) and a gold plated connector jack.

The Monoprice 8320 offers incredible clarity, a clean and full soundstage and solid build quality. I compared them to my beloved Triple-Fi and HF3 and the comparison was interesting. Using Apple Lossless encoded audio (from the source) and connecting it to my iPhone 4s with the EQ turned off, the Monoprice 8320 put up a good fight. I expected it to fail miserably (come on, it’s $7) but it competing well.

During my tests, I found that the 8320 offered a clean soundstage. Mids were full and clean. Bass was strong but clear, I didn’t experience any static or distortion at normal listening volumes.

Soundstage is a very subjective descriptor. To test a soundstage, I put on a track with lots of vocals and instruments (in lossless format ripped from a source), I close my eyes and try to feel the music. Can I hear all the instruments? Can I feel where each of the musicians is standing? When I tested my HF3 and Triple-Fi’s, I heard nuances I had never heard before. They really brought the music to life.  The Monoprice 8320’s didn’t perform as well as these two (and I didn’t expect them to) but to be honest, I was dumbfounded by how well they performed. They won’t replace my 2 beloved units but this is a nice pair you can through around and not worry about.

The Monoprice 8320’s do not have a mic option but they can’t be beat for price/value.

A question I get a lot about headphones is “Do I need to use a headphone amp with my…”. I tested the Monoprice 8320 with and without a headphone amp and had the exact same performance.

I can definitely say you do not need a headphone amp with the Monoprice 8320 earphones.

They won’t be replacing my high end earphones but they beat the pants of any other sub $100 earphone I have tried. 

A fantastic $60 headphone amp

ReviewEdward Kiledjian

If you are wondering why you may need a headphone amplifier (amp) then take a look at my previous blog entry here.

After buying a decent pair of headphones, a headphone amp is the next best investment if you want to get the best possible sound quality out of your media player (e.g. iphone, Android, ipad, Cowon media player or other).

Chu Moy headphone amp

The Chu Moy (CMoy) headphone amp is an extremely popular do-it-yourself headphone amplifier project that can be fun and easily customized to your equipments specifications. Like most other open source do-it-yourself projects, creative entrepreneurs have taken the basic cmoy concept and have made significant improvements. This is where the JDS Labs cMoyBB headphone amplifier comes in. 

Design and build

The product I am reviewing here is the JDS Labs cMoyBB v2.03 headphone amplifier.  As Chu Moy type amps go, this is considered to be the best designed product currently available.

 

As you can see, the amp is built into an Altoids mint tin which makes the entire product surprisingly sturdy. The kit I received was flawless (do dings or scratches) and even after normal wear will definitely hold up well. If seems to attract attention wherever I used it and people always asked me what it was, what it did and where they could get one.

As a frequent business traveler, I was concerned about how this would be perceived at the security checkpoint but I haven’t had too many issues. There was only one situation where the agent asked me to power the device, and prove that it was actually an audio device.

The device is powered by (an included) 9 volt battery which makes it portable and easy to replace. However you can also power it via a wall plug which can be purchased from any local electronics retailers. JDS Labs provide the plug specifications here.

The external power plug connects here (next to the blue power LED).

The device is smart enough to auto-shutdown when you unplug your headphones which is a nice battery saving feature. I tested the unit with a full new Duracell battery and the device powered by Ultimate Ears Triple-Fi 10 for about 12 hours straight.

There is a little switch on the board that turns on (or off) the build in bass boost feature to ensure you get the sound signature you want. The first thing I notices is the custom board they used. Many CMoy amp resellers build their products using generic proto-boards (breadboards) whereas the JDS Labs one uses a custom designed and manufactured board. Just goes to show how much care went into the design and production of the product.

A common complaint from many headphone amp buyers is that the units aren’t tuned for their headphones thus cause distortion or end up being underpowered for the really high end headphones. No issues here with the cMoyBB from JDS Labs. When you place your order, make sure to specific the brand and model of your headphones so the team can custom tune the amp for you. This means you get the best possible performance from the amp for your specific setup.

Bring on the sound 

Like everything else in the wonderful world of audio, garbage in equals garbage out. To get the best possible result from the cMoyBB, you have to use it with quality headphones and quality recordings.

In order to test the sound reproduction quality, I use the following setup: 

  • an iPhone 4S (with and without the FIIO L3 Line Out Dock)
  • Cowon i7 audio player
  • stock Apple original headphone (not the new EarPod)
  • various headphones including the Etymotic ER-6, Etymotic HF3, Ultimate Ears Triple-Fi 10, Sennheiser PXC-250, Sennheiser HD515, Audio Tecnica ATH-ANC7b and the Audio Tecnica ATH-A700x.
  • MP3 files encoded directly from the original CDs in various bit rates from 128 to 320  kbit/s
  • audio files stored in the Apple lossless codec format 

The songs I used were: 

  • Bizet – Carmen Suite No. 1 - chosen because of the various instruments included such as flute, harp and worn.
  • Wolfgang Amadeus Mozart – Clarinet Concerto in A  - a song that represent a full symphony range.
  • Pink Floyd – Mother - this song includes both guitar and drums. A great way to find out how clean sound reproduction actually is.
  • AC/DC – Back In Black - this is an excellent representation of rock music, and a fantastic way to test the lows in the mids.
  • The ultimate demonstration disc  (difficult to find but worth it).
  • Some spoken word from Audible using the highest quality format available.

Regardless of the headphone and song combination, the device performed very well. The best results came when I used my higher end headphones with the Apple lossless (or 320bit encoded) songs and the FIIO L3 LOD cable. The amp had no issues. Even when I was listening to extremely wide sound stage songs with small nuances with a fast tempo, the device kept up wonderfully. To be honest, it shamed some other (more expensive) headphone amps I have previously tested. The important point was that it kept all of the audio details, provided the beautiful wide sound stage my headphones support and didn’t introduce any distortion or other audio artifacts. 

The sound signature of the amp was a bit warm but just slightly. All the frequency ranges were clear and without distortion. I kept the bass boost off because I prefer a more balanced sound. I found that the bass boost modified the soundstage too much for some songs making these sound less natural but for others (songs made for bass) it provided a nice clear boost to the low end.  This is where the quality and sound signature of your headphones is important. It will accentuate the characteristics of your headphone so you may want to experiment with bass boost and see how it performed with your cans.

There are other headphone amps that provide better performance but not at this price point. Few people want to invest $300-500 just for a headphone amplifier.  Again the JDS Labs cMoyBB  blew away the competition in the $50-$150 range.

If you are slightly more geeky and want to further improve on a great design, you can replace the stock OPA2227 opamp with a faster one but for most users, this would be overkill.

Verdict 

After having spent a couple of weeks with the device, my preferred setup became my Ultimate Ears Triple-fi 10, the FIIO L3 LOD, 320bit encoded MP3s and my iPhone 4s. I love this thing and recommend it highly. It is well built, can be customized by the factory for your headphones and a very good value (quality/price).

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Review of the Etymotic HF3 in ear monitor headphone

ReviewEdward Kiledjian

Over the last 15 years, I've spent a considerable amount of time living in airports and airplanes. Because of this, I am always searching for the next gadget or technology that will make my trip easier or more enjoyable. The first gadget that most travelers buy is a quality pair of noise canceling headphones. 

My first active noise canceling headphones were to Sennheiser PCX-250 then I graduated to one of the first Bose Quiet Comfort's . Although these devices performed extremely well, they had some negative factors that motivated me to look elsewhere.

  • I'm a one bag traveler - this means that I travel light. The last thing I want is gigantic headphones that don't fit into my carry-on bag.
  • Batteries - most active noise cancellation headphones require their own batteries. Most stop working as soon as the batteries die, not good when on a long flight.
  • Sound quality - the primary function of most noise canceling headphones, is noise cancellation. If sound quality is important to you, then many of them may not fit the bill. Read my review of the Bose QuietComfort 15

I've been using passive noise isolating headphones for about four years now, and own some of the best models currently available in the market (brands like Shure, Westone, Ultimate Ears and Etymotic.) Imagine my excitement when I was able to get my hands on the new Etymotic HF-3.

Introduction to the hf3

this is an extremely well-designed smart phone compatible headset that includes all of the features we've come to expect at an extremely competitive price (sub $200). 

The enclosed three button remote, allows you to perform all the standard tasks: play/pause, skipping or rewinding a track, answering the call, disconnecting from a call and of course volume control. 

Sound quality

Since I'm an audiophile and we're talking about headphones, I wanted to jump straight into audio quality. The HF3 (hf-3) offers honest and uncompromising sound reproduction (even compared to my other headphones that cost 3 to 4 times more). 

In order to test the sound reproduction quality, I use the following setup:

  • an iPhone 4S
  • various headphone amplifiers
  • MP3 files encoded directly from the original CDs in various bit rates from 128 to 320  kbit/s
  • audio files stored in the Apple lossless codec format

The songs I used were: 

  • Bizet – Carmen Suite No. 1 - chosen because of the various instruments included such as flute, harp and worn.
  • Wolfgang Amadeus Mozart – Clarinet Concerto in A  - a song that represent a full symphony range.
  • Pink Floyd – Mother - this song includes both guitar and drums. A great way to find out how clean sound reproduction actually is.
  • AC/DC – Back In Black - this is an excellent representation of rock music, and a fantastic way to test the lows in the mids.
  • The ultimate demonstration disc  (difficult to find but worth it). 
  • Some spoken word from Audible using the highest quality format available.

I quickly discovered that the device is tuned in such a way, that you do not need to use a headphone amplifier. This is a plus for portability. 

I love my Ultimate Ear Triple-Fi 10 but too often they sound overly"bright". The HF-3 deliver's a clear, detailed and unbiased reproduction of your content. Regardless of how complex the music was, the HF-3 performed like a champ and never sounded muddied or clouded. 

Mids and highs were crystal clear. Lows were well balanced (as long as the earphone’s had a proper seal in the ear canal).In order to achieve maximum sound reproduction (especially for the lows), you need to ensure the headphones have made a nice tight seal in the ear canal. Users that have just moved to these may not realize how "deep" the headphones need to be inserted. 

I was able to hear instruments and nuances that are lost with most earphones in this price range. Sound stage was wide and open. The Etymotic HF3 is closer to reference headphones than my Ultimate Ear Triple-Fi 10 or Shure headphones. 

I compared the HF3 to its more expensive sibling (the ER-4s) and was amazed at how the HF3 could provide very similar sound reproduction at this price range.  

Some of the most popular headphones sold today are specifically built to provide enhanced bass (sacrificing the quality of the mids and highs). If this is the type of headphone you are looking for then the HF3 is not for you. The HF3 is not a boom boom style headphone.

At high volume (not recommended) the headphones performed without disortion or audio artifacts. When playing some of the lower quality MP3s (128 kbit/s) I could hear compression artifacts which really impressed me. 

Build Quality

Unlike the cheaper feeling remote on the ZAGGsmartbuds, the remote on the Etymotic HF3 feels solid and well made. They have used a nice high quality cable that minimizes bumps and scratches introduced by the cable rubs against your clothes (a complaint I have with many other earbuds).

As soon as you touch the product, you can feel the care that went into it. You know this is a quality product that will last for many years.

Microphone

I read other reviews and have to acknowledge that many complain that sound level of the microphone is low but this isnt a problem I encountered. I tested the microphones by making standard cell phone calls on an iPhone 4s and a Google Nexus and callers said my end of the conversation was clear. I also tested calls via Voice Over IP applications (Skype, Dell Voice and Nettalk) and again callers said I sounded clean and clear.

Even calls overseas to Europe and Asia worked beautifully. 

Noice Isolation

The kit comes with various earphone tips and it is important to take the time to test the different ones and find the best one for your specific ear shape. Finding the right one means you will get better sound and better noice isolation. As soon as you find that best fit tip, you will be dumbfounded at how much sound this little device keeps out.

Etymotic claims

"Documented highest noise isolation of any earphones or headphones on the market today"

and I believe them. The loud road of a jet engine is quieted to a gentle lull. The screaming baby 3 rows down is easily drowned out by your music. 

Noise isolation was better on the HF3 than on any of my other In Ear Monitors including the Triple-Fi 10. 

Custom Ear Tips

I have not gone through the process yet but Etymotic has a program where you can have custom molded eartips produced for your HF3 by a certified audiologist. The cost is about $150 and I will update my review if I ever get around to having a custom pair done. 

The Awareness App

The one "downside" of extreme noise isolation is that you may be too disconnected from the world (i.e. not hearing a warning horn or an announcement that you have arrived at your destination). Etymotic has made available an IOS app called Awareness that uses the HF3's microphone to alert you of sounds louder than a certain threshold. When triggered, the app can pause your music. reduce the music volume or leave the music volume as is but add the external sound to your music. 

Etymotic explains the app as "preserving the listening experience while adding awareness of outside sounds for safety's sake". Etymotic customers get the app for free, but others can buy it from the app store $6.99

 

Verdict

I can't recommmend the Etymotic HF3 enough. I absolutely love it and it is now my Everyday Carry headphones. The sound quality and noise isolation are unbeatable. They outperformed many competitors that cost 4-5 times as much.

 

Some Pictures

Click on the thumbnail below to see the full size one.

The packaging

Nice visual box

properly protected box 

The zippered pouch, the different eartips and the earwax filter + replacement tool

The 3 button remote

The angled connector (nice touch and well designed)

Comparing the tips of 3 earphones (the ZAGGsmartbuds, the Etymotic HF3 and the Etymotic ER-6)

The Zagg and ER-6 have Comply Foam tips while the HF3 has the original stock tip.

 

Review of the FIIO L3 Line Out Dock cable for the iPhone

technologyEdward Kiledjian

July 24, I wrote an article entitled “DO I NEED AN AMPLIFIER FOR MY HEADPHONES?” , if you are at all interested in good sound, I recommend you read it. In it I explain that most audio devices are built with cheaper built in headphone amplifiers to reduce device cost and I explain the benefits of a headphone amplifier (headphone amp).

The one question is how to connect the headphone amp to your device? This article concentrates on connecting them to iDevices (particularly to an iPhone 4 or 4s). You could always use your devices headphone jack but this goes through that cheap built in headphone amp which will negatively impact sound quality. For iDevices, the best option is a Line Out Dock adaptor which connects using an Apple 30 pin dock connector. These special cables bypass the devices headphone amp and thus they allow you to have a better (cleaner) sound.

One of these cables that I recently tested was the FIIO L3 cable.

Testing

My testing setup was with 3 different portable headphone amplifiers and my Ultimate Ears Triple-Fi / Grado 60 headphones. My audio came from an iPhone 4S and all audio files were encoded in Apple Lossless directly from the CDs. My testing consisted of listening to a song while connecting the headphone amp to the iPhone’s headphone jack, then listening to it through the FIIO L3 connection.

I could clearly hear a difference in sound quality. The songs played through the L3+headphone amp sounded much crisper. The sound was more dynamic and details much more vivid. An overall improved listening experience. This isn’t the most high tech LOD but it’s value can’t be beat at its super affordable price.

Build

The cable feels well built with gold platted connectors. It fits nicely into the iPhone’s dock connector and to release it requires that you press 2 little spring loaded buttons on the side of the cable (nice design touch). The cable itself is about 4” which is excellent when using it with a headphone amp but may be problematic if hooking it up to a home or car stereo.

After 3 months of solid use, my little cable is still in excellent condition and performing like new. It is important to note that I took care of it (like most of my equipment). If you through this in your pocket and constantly nock the connector and cable, I can imagine that it will eventually break, this is not a design flaw but a reality of rough use.

When you connect the cable to your iPhone, volume control is no longer possible from the iDevice. This is normal, since you are bypassing the iPhone’s built in headphone amp. Volume control has to be done through your external amp (which is a nice benefit).

What about the other LOD the FIIO L9?

I wasn’t able to get a FIIO L9 for testing but it seems (based on the literature) that the only difference is an angled connection and the L9 does not have the spring loaded connector hooks.

Verdict

If you use an external headphone amp and want an excellent affordable Line Out Dock connector cable, get the FIIO L3.