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update-- Review: Headroom Total Airhead

post #1 of 17
Thread Starter 
http://s533.photobucket.com/albums/ee334/baka1969/

Hello everyone,

I was planning on doing a review of the Headroom Total Airhead while also doing a comparison of my Grado SR-80s. vs my incoming Grado SR-225s simultaneously in one comprehensive post. After thinking about it, I felt that doing a review of three pieces of equipment would only muddle the issue. Especially since there would be no control product besides my source iPod. It also felt as if it would be an injustice to either the amp or the cans.

What I will do instead is review Headroom's Total Airhead here and do the compare/contrast of the earmuffs in a separate article. Either way the Grado 80s will play a key roll in both.

I have been on a search for improved sound for some time over the past several years. I am not in any way an Audiophile. I just want extremely high quality sound and precise detail. Pretty much what most of us here on Head-Fi want. I had been using a Sony CD Walkman D-EJ368CK for some time as my source before getting my iPod. The sound seemed passable. The weakest link to me was always the headphones.

I bought el cheapo 'phones almost on a weekly basis to seek better quality sound and more and more detail. I literally have a drawer full of them. None costing more than $20. Muddy or tinny or just all around crappy pretty much sums up what I had before. Being frustrated that I couldn't find anything of quality I settled of a listenable pair IEMs from Skull Candy. That is until I recently got my iPod.

My cousin had a 5th Gen 30g iPod he wanted to sell. He wanted a good price, so I bought it. I loaded my CDs onto it using the wav format. I've heard and read from others that Apple's Lossless (and other lossless formats) sound as good as Redbook. To my ear, wav just sounds fuller and no different than my discs. I sacrifice a lot of storage space but the results are superior and well worth it.

After getting the iPod my craving for audiophile sound kept growing. Since I now have a good portion of my music in a convenient package I found myself listening more often and for longer periods of time. Plus I thought about all the money I wasted on crap and decided that if I took all the money I threw away on bad stuff and invested in a pair of quality headphones I'd enjoy my music much better.

So I Googled simply 'best headphones' and a world of information was displayed in front of me. One of the many sites with terrific info was Head-Fi. So I lurked and learned for a while reading obsessively about all aspects of headphones. One name kept creeping into my cranium. Grado. Coupled with a catalog from Music Direct I made the leap into the world of high-end headphones. I ordered a pair of Grado SR-80s.

I will detail a full review of the 80s when I compare them with the Grado SR-225s when they (the 225s) come in and I've had some time to listen. What I will say is a new world has opened up to me and my music with the terrific 80s. The detail is amazing.

However I kept reading that they need an amp to sound their best. Ok not everyone said that, but it's a consistent theme. I wasn't completely convinced. Although not perfect (my headphone review will cover those areas), I love my 80s. How could they possibly sound better? BUT, I knew there could be more. So I said 'let me see what the hype is all about' to myself.

Again I read and read about amps. In the end I ordered a Total Airhead from Headroom. At the time it seemed like the best balance of price, sound, quality and portability based on what I'd researched. $100. Not bad. Along with the Airhead I ordered a SiK-Din lineout iPod adapter. This is supposed to improve sound by bypassing the noisy headphone jack by plugging into the bottom where the firewire port is. The other side is still a mini plug that plugs into the audio input of the amp. I ordered a wall-wart to give it a/c juice. I also needed a Grado 1/4 to 1/8 adapter so I got that too. $156 was the total damage including shipping. Certainly well within what would be called the budget category. If you subtract the $15 for the Grado adapter it's $141.

Three days after I ordered from Headroom, FedEx delivered my box-full-o-stuff!

After the initial excitement of getting a new toy wore off, I knew I had a task at hand. Prior to the arrival of the Airhead I was carefully selecting which music, songs and segments I would listen to while first testing out the amp. It's no surprise or secret that I'm a Pink Floyd fan. Their music just happens to be perfect for testing out audio equipment. With the excellent music production, wide array of styles, and the fact that I know almost every note, it just makes logical sense. I use other groups and songs but Floyd is used for most of it.

The very first exercise I give all equipment is listening to the song Wish You Were Here. Paying particular attention between the 30 second and 1 minute mark. The cough, sniff and sigh should be fairly easily picked up by even mediocre playback sources, headphones and especially amps. It's quiet, but it's there. However, before the cough and in between the sniff and sigh are very subtle details that most can miss. You can hear swallowing, movement, breathing and smacking (I don't know the exact term used for the sound that's made when your lips part or your tongue moves around inside the mouth or across the lips, but you get the idea) that is extremely difficult to detect. It's very subtle and it's in the mids.

So I had my music ready. I opened the FedEx box to reveal it's treasures. The packaging of the Airhead was pretty much what I expected. Nothing special. Ironically the Grado adapter is packaged much better than I thought it would. When I opened up the small Airhead box and removed it my initial thought was how light it is.

The size was pretty much as I anticipated it being as I'd seen pics of it coupled to iPods prior to ordering. It's about 10cm x 7cm x 2.5cm (4" x 2.75" x 1"). I was hoping the dimensions would be equal in ratio to the Golden Rectangle, but they're not. Oh well.

The corners are cut off to give it eight angles. Those corner angles are not just for aesthetics, but are functional design elements that house the headphone jacks in the front (Yes there are two jacks so you and another can plug in and listen together. Amped!) and the input for the a/c adapter and the audio input on the back.

In front there are two switches, the power switch and the switch for the crossfeed. The front also has 2 LEDs. The left one is green and is the power indicator. The right one is red and is the clipping/low battery indicator. In the center is a wheel type volume control.

On the top is a rubber battery cover with the Headroom logo and Airhead embossed onto it. Aww cute. Around the edge of the battery cover it also has symbols telling you what all the lights and switches do. Although they're very difficult to read. The overall layout is intuitive once you're familiar with it.

Inside the battery cover is where you put the 4 AAA batteries. Also it's where the amp hides it's high-low gain switch. You can switch to high gain if you don't get the volume you need while using the low gain.

The bottom has places for the hook and loop dot fasteners that come with the AH to attach it to places like your iPod or a desk. Little rubber feet are also supplied. I chose neither.


I plugged the wall-wart into the AH. Plugged one end of the supplied mini-to-mini adapter into the phone jack of my iPod and the other into the Airhead. I then plugged my Grado 80s into right phone jack. Finally I get to listen to some music!

I turned the volume all the way down on the AH, switched the power on and moved the volume to half on the Airhead. Crossfeed on. I turned up the volume to full on the Pod. I selected the song Wish You Were Here and clicked PLAY.

My first reaction was WTF? I barely hear a thing! What? What's going on? What just happened? I rechecked all the connections and settings. And restarted. Same result. This is an amplifier right? It's supposed to amplify sound. So I crank the volume to it's highest setting and the volume is NO HIGHER than it is coming straight out of my iPod. NONE.

I was pretty upset at this point. So I remove the battery cover and switch to high gain. I start the song over and I get loud hissing. Now if you know the song Wish You Were Here you know it starts off with radio static. This might seem counter productive to start out listening to static but I know this static well as it's an intentional part of the recording and I know how to isolate it while listening. What I was getting now was a noise floor well above this. I was fuming now.

While thinking what a POS this thing was and cursing audiophiles, Golden Ears and anyone else that ever mentioned Airhead and cursing Headroom themselves the song continued. The 30 second mark came and something happened. An amazing amount of detail lept into my ears. I heard things I NEVER heard before.

Even more than with the 80s straight out of th iPod! And the 80s have revealed more than any headphone I'd heard before. But the difference through the amp was dramatic. It was amazing what I could hear. I could hear the moisture in David Gilmour's mouth!

As I continued listening the 1 minute mark came and Gilmour starts playing his guitar to the radio. The volume was too loud for me (and I like it loud) so I turned the volume wheel down on the amp about 15-20%. A funny thing happened. The noise floor dropped. Significantly.

So I listened to the song further and just before the 1:30 mark the vocals come in. The increase in clarity was quite apparent. The separation of his voice from the guitar was immediately recognized. You can tell every nuance in David's singing.

At 2 minutes the drum starts and the cymbals crash. Crystalline. No clipping.

It was time to switch songs. I chose Time from the Dark Side of the Moon album. The 30th anniversary remaster with the hybrid SACD.

The beginning of which has a room filled with clocks. Without the Airhead and the Grado plugged directly to the iPod I could hear ticking and some of the gears turning. Through the AH however it all comes to life. You can actually hear the gears moving and the pallets hitting and moving across the turning gears. You can also hear the pendulums swinging on some of the clocks. When the alarm and chimes make their awakening appearance it feels as if it's filling from all around me. The increase in soundstage moves from being in and around your head to outside my body. It was a 360 degree placement of all of the various clocks crying their cacophony of splendor. You can hear each tone resonate well beyond the initial strike. And the decay seemed to echo wonderfully.

Next up is the Toms. This is another true test. I love this section of the song. The resonate quality of the Toms are beautiful. When the Grado is direct in the iPod it's great. I hear all the distinct sounds and the pace is well timed. Listening through the Airhead raises the bar. You can actually hear the impact of the drums. Hell, you can FEEL the impact. You can hear the sound moving through the drum and expanding outward. You know it's a Tom, being hit on it's skin and making its sound.

I analyzed the detail with various songs and without boring you with every single note, I will say that the Airhead amp with the Grado SR-80s are extremely detailed. If a song or album is poorly produced or just plain recorded badly, all will be exposed. However, given a good source and excellent music and it's there, you'll probably hear it.

That's all well and good, but how do they play music you ask? Wonderfully.

The 80s unamped are a little bright. There is the matter of them being a tad sibilant. I found the bass to be a bit wanting also. This is not to say I don't love them. They are terrific and inviting. They the best cans I've ever owned. I always want more though.

And Headroom's Airhead do just that. It fills in the music. The brightness is reigned in. Highs soar even further without clipping. Mids fill all around you. The bass is much deeper and tight. No slop.

One of These Days from Pink Floyd's Meddle albums is structured around a dueling baseline. A bass guitar in each channel. It can be difficult to differentiate the two instruments and they seem to overlap. With the 80/AH combo, the delineations are much more pronounced. I'm not a bass head but I appreciate the added depth the amp brought out.

Also the sibilant behavior I found before was reduced by about 90%.

Overall the Airhead made listening to music much more enjoyable and involving. Being in the middle of the music is not just hyperbole, it's really true.

Headrooms entry-level amp is not perfect though. I was disappointed by the need to use the high gain. As a matter of fact I listened to music in the low gain mode and detail was lost even when compared to straight out of the source iPod! Really, it sounded worse!

The noise floor is still higher than I'd like. I want blacker blacks.

It also can use shielding as when I use my cell phone whether I'm using it for the internet or to send an email or text there is clearly audible signal interference that comes through every time there is a data exchange on the phone. Even up to 6 feet away. It's extremely irritating. Considering this the Airhead is a mobile device, it borders on unacceptable. I often surf the web while listening to music. And my BlackBerry is my internet source. Period. I have to move the rig to the end of Grado's cord to get relief from it. I'm not sure if any of the other amps out there in the under $150 range do this or not, I don't care for that part of it.

Overall I think the Headroom Total Airhead amp sounds great for it's price. For those who say that the Grado SR-80s don't need an amp, should listen to them through an amp like the AH. Unless other mobile amps in this class and price are different, the Grado needs the high gain.

In the end the advantages outweigh the downside. The music is better. Isn't that the point? And for under $500 you get a very high quality experience from your iPod, Airhead, Grado setup.

I don't know if I covered everything. I hope I did Head-Fi and you guys a little justice by writing my little review here.

Please let me know if you have any questions.



Update October 3, 2008:

When I did my initial observations of the Total Airhead amp in the above review I did so with the wall-warts plugged into both the amp and iPod. They were also plugged into a cheap surge protector. I have since then listened to both D/C. The iPod with it's stock internal battery and the TAH with 4 AAA batteries.

To be fair, I've been listening through a pair of Grado SR-225s recently and not the SR-80s. I did a comparison review of the 225 vs 80. Please click below in my sig if you haven't yet read it.

I want to give a few observations.

The noise floor has dropped. Not dramatically, but significantly. If I had to quantify it I'd say about 25%. If I'm not mistaken a 10db drop would be about 50%. Please correct me if I'm misguided. So, if that's the case, judge for yourself the improvement.

Another thing that happened is the detail and clarity also increased a little. I seem to hear more bass response and it tightened up further. It's vibrates through the notes. Not boom. Does that make sense? LoL

I'm listening to Is There Anybody Out There? off Pink Floyd's; The Wall as I type this and I really believe the soundstage changed. It seems more directional. Not bigger, just more 3D.

The music filled out more too.

I'll just sum it all by saying that it sounds better when D/C is running things. A lot better. I know it's obvious that it would, but it's still nice to hear it for yourself. A/C is just noisy.
at it does say is that a quality power conditioner is probably needed for a high-end home audiophile system to improve sonics. But that's another thread. LoL

PS- This was all written on my BlackBerry.
post #2 of 17
Nice write-up!

I've always said that the Total Airhead is one of the best bang-for-the-bucks amps out there, especially with the wall-wart external power supply.
post #3 of 17
Nice review. I own its more computer-literate twin and its bigger brother, so if you like a low noise floor consider the Headroom Micro. The 225s should sound fantastic through it.
post #4 of 17
Wow your review sounds like the airhead is something else hehehe. I don't even hear that big of a difference with grados comparing my ipod to the cd player directly to a gilmore lite with dps

Ive had the pa2v2 and thought it was a downgrade from the ipods headphone jack which turned me off low budget portable amps. From then on I told myself to stop wasting money on battery operated amps.

Just for reference, has anyone here compared the airhead and a glite? Just want to know what to expect if I renew my faith in battery powered amps.
post #5 of 17
Thread Starter 
Quote:
Originally Posted by donunus View Post
Wow your review sounds like the airhead is something else hehehe. I don't even hear that big of a difference with grados comparing my ipod to the cd player directly to a gilmore lite with dps

Ive had the pa2v2 and thought it was a downgrade from the ipods headphone jack which turned me off low budget portable amps. From then on I told myself to stop wasting money on battery operated amps.

Just for reference, has anyone here compared the airhead and a glite? Just want to know what to expect if I renew my faith in battery powered amps.
Hi, The dramatic difference I hear is comparing the headphones through the Airhead vs straight throug the source like my iPod. That difference was only achieved when I switched to high gain.

I've not compared or even heard other heaphone amplifiers so I just can't say. Do I think an amp like the Total Airhead is worth it? Absolutely without reservation. It's night and day.

When I have my home system setup, I'll get a nice amp. But that's a topic for another thread.
post #6 of 17
Also I thought I might add that I recall reading in Headroom's sponsor forum that their amp's "gain" setting is just an extra set of resistors- think a single-setting on-or-off stepped attenuator. Supposedly "high" means not attenuated, so that's probably the best setting for full-size cans. I think the "low" gain setting was added for highly sensitive IEMs and such.
post #7 of 17
Quote:
Just for reference, has anyone here compared the airhead and a glite?
Not quite, but I once did an A/B comparison between the Total AirHead (TAH) and my HeadAmp GS-1 (with DACT stepped attenuator) home amp, which now sells for over $1000. I used the Grado SR225 in my comparison.

I had both amps fed with the same source (Music Hall CD25.2 (digital out)-> Ack! dAck! v2.0 DAC). That's a $600 "transport" and a $800 DAC, so I think it is more than adequate to do a valid comparison. I hooked the TAH to the loop out of the GS-1 via a Wal-Mart mini-to-RCA cable. Most importantly, I level matched the outputs of the amps to the nearest decibel with a Rat Shack SPL meter before doing the comparisons, something I bet most people don't bother doing. I ran the TAH only through AC power; never tried it with batteries.

I would listen to a portion of a song many times over to get it into my memory. I would then rapidly switch amps and relisten and mentally note any differences I hear.

To my surprise, the sound was quite close to my ears. It took hours of A/B comparison to hear the subtle differences. The GS-1 had slightly more powerful bass, slightly greater treble extension and sense of space. The GS-1 also seems to have a slightly more forward midrange. The differences certainly was not "night and day." I probably would not be able to tell the difference in a blind test. I also certainly would not bet money on such a test either.

I wound up selling the TAH and getting a used Gilmore Lite + DPS for my desktop system, only because I wanted a full-sized amp to operate rather than a portable since I was using it strictly as a desktop amp. A full-size amp did not require me to use an adapter and the larger volume knob (vs the TAH's dial) is easier to grasp and turn. Admittedly, I upgraded mainly for the tactile feel of using a metal bodied amp. The GS-1 was a keeper because I also use it as a preamp in my speaker/home theater system.

The Total AirHead (TAH) is a good sounding amp.
post #8 of 17
Nice Review,

You should try their bigger brother later on,

Dave
post #9 of 17
kontai69 is eeeevil! now i want me a total bithead for mee laptop hehehe
post #10 of 17
Wow, that really puts it in a favourable light. If the DECWARE Zen Head didn't have a lifetime warranty I'd have a hard time choosing between it and the Airhead for my next purchase.
post #11 of 17
Thread Starter 
I'm sure the Zen Head is a great amp but at three times the price. That's three lifetimes. LoL
post #12 of 17
Quote:
Originally Posted by baka1969 View Post
I'm sure the Zen Head is a great amp but at three times the price. That's three lifetimes. LoL
That's a good point, and while I consider the Zen Head a 'lifetime' purchase now, I'm sure a new portable will change that
post #13 of 17
Thread Starter 
If I had a dollar for everything I thought would be a lifetime I'd be... Lmao!
post #14 of 17
One thing I want to remind everyone here though is that baka1969 and kontai69s impressions of the airhead/bithead is done with grados/alessandros. It takes a different animal to drive high impedance cans. It would be great if someone with experience driving hd650s for example chime in
post #15 of 17
Baka1969,

Terrific review. I have a Total Bithead and a Decware Zen Head ZH1. The Total Bithead has a DAC; otherwise it's the same as the Total Airhead. It's a brilliant amp/dac for the money. I like the crossfeed and the 2 headphone jacks so I can share. The Decware Zen Head ZH1 is considerably better at twice the price. The soundstage outclasses the Total Bithead, the noise floor is black, and the crossfeed is the best I've ever heard. I think with the Total Bithead you get a lot of amp for your lolly, but the Zen Head is much better. That being said, at half the price of the Zen Head, the Bithead is a veritable bargain. With my laptop, I use the Total Bithead (I want the DAC). With my ipod clone, I use the Zen Head. My headphone of choice is the Grado 325i. It has a lovely synergy with the Zen Head. I'll have to try my Total Bithead with my Grado 325i's and then I'll report back to you (I don't remember having to use the high gain setting). More later.

Cheers!
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