FiiO M7 Dap and the FiiO μBTR 

FiiO - μBTR - Bluetooth head phone amp

The new FiiO μBTR - Bluetooth head phone amp is an easy to use device that connected easily to my ipod touch 6G, FiiO M7 and Android based daps.

A device that is lightweight and sounds good. Useful for casual use, on the go or working out etc.

Unboxing and build

μBTR Specifications and features.

FiiO - μBTR with Echobox Finder earphones

The FiiO - μBTR - Bluetooth head phone amp is simple looking but quite functional. 
Sometimes simple is best.

Volume down/up. Power on/BT pairing, mic.

See the mic for taking calls up the top.

USB C cable as is becoming more common these days.


I connecting successfully with several devices, FiiO M7, ipod touch 6G and Opus#3.

I didnt venture further as I thought this was a representative enough of iOS and Android and the FiiO - μBTR - Bluetooth head phone amps ability to connect with ease.


At US$27.99 its a steal.

These days more and more companies are coming out with functional and useable products to meet the needs of anyone with an interest in listening to music.

At work, on the go, resting at home or working out.


Tested with the FiiO M7, Opus#3 and ipod touch 6G.
Tested mainly with earbuds as I suspect many will be using this for jogging or exercising.

 TY Hi-Z HP-32S earbuds
The sound is pleasing and full bodied.
It presents a fairly even sound with vocals a bit forward.

Campfire Audio Andromeda
Retains the general signature, sound stage and resolution to a point. Not disappointing by any means, but I know it can stretch further and perform higher with a more upmarket device.
But thats not the aim of this BT amp. Still satisfying.

Campfire Audio Comet
More laid back, neutral and even with a naturalness to it.

All in all the FiiO - μBTR - Bluetooth head phone amp performs excellent within its parameters.
Fairly neutral and smooth.


The FiiO - μBTR - Bluetooth head phone amp is an affordable device at US$27.99. Hardly a price to complain about at all.

Its lightweight, has a handy clip for moving about.

The device pairs easily with many devices.

Saves one get the precious iphone all sweaty, or falling out of the pocket etc.

The Bluetooth signal is quite strong.

The volume can be dependent on the source. I managed to squeeze out a bit more from the Opus#3 than the ipod touch when I cranked up the gain. But the volume from the ipod touch was more than adequate. And I like it loud.

My upper room of my house is open plan and I could walk around quite freely with a solid connection. When I ventured downstairs I had some stutters. But that it to be expected, Its designed more as a close proximity device.

The sound quality is clear, has enough body and resolution to please.

If you are looking for an affordable, easy pairing, lightweight BT amp with decent sound for your earphones the  FiiO - μBTR is a good choice.

Thank you to FiiO for sending the FiiO - μBTR BT amp for review.

Magaosi K3 HD Review: The Capable Hybrid

I am a simple person that is after a few goals. There is one goal in particular that makes my heart race. The Ultimate Sound in Portable Audio. I will keep hunting for it. It seems like an endless goal. Although that's the fun of it. The journey.
Penon Audio and Head Pie gave me a chance to review the K3 HD. Thanks to the both of you.

Build Quality:
Not worried about this at all. These IEMs are very durable. The shell is made out of metal. It has a neat capital A that looks like a Radio Tower on both shells. The nozzle is angled pretty well. There are two cables. The normal Gun Metal Black Cable and the High Quality Silver Cable. I like the Gun Metal Cable. It looks very stylish. The Silver Cable looks even better. The problem is that the Silver Cable has a memory cable issue. It tends to curl up after properly wrapping it up a few times. Not a good thing at all. I hope that gets fixed if Magaosi is planning to do a revision or a Flagship Model.

Leather Clam Case
MMCX cable (L-shaped plug)
MMCX silver-plated upgrade cable (straight plug)
Tuning Filters (Silver and Gunmetal)
Silicone Eartips (S/M/L)
Foam Eartips (S/M/L)


IBasso DX150
Tracks Used:
Stratovarius – Abyss (FLAC 16/44) (UPPER MIDS/TREBLE)
Stratovarius -  Dreamscape (FLAC 16/44) (UPPER MIDS/TREBLE)
Radical Face – Secrets (Cellar Door) (FLAC 24/96) (MIDS)
Razihel & Aero Chord – Titans (MP3 320 KBPS 44.1 KHZ) (BASS & LOWER TREBLE)

Sound Quality:

BASS: After careful listen. I’ve noticed that the K3 HD has more bass presence and slower decay with the Silver Filters than the Gunmetal Filters. The Gunmetal Filters have more agile bass. Wasting almost no time transitioning to other bass tones. This resulted in a less present bass for the Gunmetal Filters. There is however more bass impact with the Gunmetal Filters. Probably due to the lower sub bass and heightened mid bass. As a result. The bass impact sounds more hammer like with the Gunmetal Filters and more cushioned impact with the Silver Filters.

MIDS: Now because of the varied effects of filters. The mids take on a rather semi typical approach on their response of the implications of the bass from both filters. The Silver filters have less present mids. Basically recessed. The vocals take a bit of a beating with the detail rendering. Not so much the lower mids. So this is a saving grace for the male vocals. Although the female vocals sound a bit washed out. Yet still very present. It won’t sound terrible. It just won’t satisfy critical listeners. The Gunmetal filters on the other hand is far better at presenting vocal reproduction. It’s still not quite there for critical listeners. Although it will still be impressive for those that wish to hear more forward vocals. While there isn’t a lot of micro detail. It’s still more superior to the Silver filter. Very adequate for picking out macro detail.

TREBLE: The enhancement of the upper midrange is making the lower mids a bit too hot. Almost sizzling. There’s a lack of control here on both filters. Yet even more so on the Gunmetal Filter. The Gunmetal filter makes it a bit hard to listen to treble centric songs for extended periods of time. The Silver filters have a more bearable treble response. Which makes it more suitable for long listening sessions. Best thing to do for the Gunmetal filter is to use eartips that enriches the frequency. Basically eartips that introduces more bass and smooths out mids. Foam tips and SpinFits will do the trick. Also make sure that the volume on your source is adequate. Otherwise it can get a little painful.

SOUNDSTAGE/CHARACTERISTICS: Overall pretty well rounded. There’s good imaging with both filters. Although the Gunmetal Filters do better with overall imaging, dynamics and sense of space. While the Gunmetal Filters are better with a more accurate Soundstage. The Silver filters have a relatively better sense of naturalness. Mostly due to the warmer atmosphere of the soundscape. It’s not extremely natural. Although it doesn’t sound nearly as bright and tactile as the Gunmetal Filters.
Conclusion: For an IEM for around $100 to $125 dollars. I found the K3 HD to be a rather nice approach into the world of IEMs in the midranged price bracket. It’s great for interchangeable sound. Has great comfort. Although that comfort and Capable Sound comes at a price. Which is the hot treble from the Gunmetal Filters. As I said before. It can be remedied easily with Foam Eartips. If you don’t mind interchangeable sound/filters and slightly hot treble and you need tough IEMs with great and capable sound. Then this is your perfect match. Otherwise if you don’t want to spend $110 and you are sensitive to enhanced treble. Then you may need to look elsewhere.

COST: 110 USDs


Review on its way...