Hidden Hi-Fi - The equipment you never knew you *didn't* need - Fosi Audio N3

What is this peculiar device? If you had one, could you use it? Would you use it? A mystery is created, evolves and resolves all in the space of one video. Featuring Audio Phil.

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[marxman]

The Warmth of bluetooth is so much nicer than that of modern valve equipment .

[paulphilippart]

I would use that device to ward off audiophiles and clear HiFi stores.

[NotAyFox]

I own a FiiO BTR5 and a BTR7 Bluetooth headphone DAC/Amp. I use BTR7 on a daily basis even when I'm just sitting at my desktop, simply because it's super convenient to put the BTR7 in the pocket, if I need to get up and do some quick chores around the flat. I also take it whenever I travel and connect it to my phone. Of course, I can always use USB-C to connect it to PC or phone and skip the Bluetooth altogether, but because it's using LDAC Bluetooth codec, I can't really tell the difference between wired and wireless. Also, while BTR5 is half the size of BTR7 and much more convenient for travel and just carrying about, I prefer BTR7 because the Amp is more potent and I do notice that on my 7Hz Timeless AE IEMs, because they use single 14mm planar magnetic driver and if you don't give them enough "juice", the low-bass and sub-bass is noticeably more anemic on BTR5 compared to BTR7. But for most other IEMs in my collection, the BTR5 has more than enough power.

[X]

I bought a whole bunch of China made Bluetooth receiver circuit boards and, as far as I can tell, the audio is nothing to complain about. I have built in several of these receivers into different stuff, among them: our lovely Sangean kitchen radio - which my significant other really love to listen on - and one of my mixers. To implement these It just take some small modifications in order to build a small internal 5 volt power supply and some other minor changes to get it work.

[stevezeidman]

I get great enjoyment out of your “taking the piss” out of audio and audiophiles. I learned that phrase from Britbox. Phil is perfect and makes me chuckle every time.

[disklamer]

These things are great if you have to otherwise pull cables around the entire room. I also use one as an aux input on my soundsystem, so I can connect whatever I want to it wirelessly. Plugged into an AC adapter so it never needs charging.

[homeopathical]

I use a bluetooth audio receiver to stream music from my iPhone to a HiFi system in the kitchen/diner for when I'm preparing food and eating breakfast. I could plug the phone straight in using the 'dongle' but I prefer to be able to adjust the volume, skip tracks and that sort of thing, wirelessly, some distance away from the HiFi set-up. Since I'm hearing the music rather than really sitting and listening to the music, I'm happy to sacrifice the very minor degradation in sound quality from using bluetooth-based streaming.

[IAmNotA.]

Here in Tasmania, I use my Fiio BTR5 daily for my walk to work. I believe the BTR5 is a BT transmitter as well as receiver. It means I can use whichever headphones or IEMs I want on any particular day. I find that type of device very useful. I'd not heard of the Fosi Audio take on it, so I am keen to try it out now.

[ramonmendoza]

Bat (beep beep )crazy person with cats😂😂😂😂😂 !!!! You are now my favorite Person/Channel/YouTuber(All of these descriptions seem to come up short)!!! FANTASTIC!!! BTW love your technical insights and your honest don’t gave a (add here)knowledgeable (I consider expert opinions) on all the subjects you chose to share with us. I’m not any (add here) of what goes for simple uncomplicated appreciation of these very entertaining knowledge filled and well made videos .Keep up the good work!

[eaches]

I have a $20 Bluetooth audio receiver. I simply use it so I can watch television with my favorite existing wired headphones without disturbing my wife.


Made more sense than buying a dedicated pair of bluetooth headphones.

[marxman]

HiFi Phil is missing the essential "Audio Gas" that conducts the sound waves from his speakers and connects them to his ears without the troublesome air impedance associated with distance .
I exclusivly use headphones ( as does most of the planet now) . I found some small BT receivers that can attach to any headphones via a compact cable I made . A glued magnet on the receiver and a glued washer on all my" nice" headphones gives the option to lose the floating cable problem

[popinmid]

Yes, I have a use for such a device. I use mine to play music and podcasts from my iPhone to my high-end straight wire with gain stereo system. I realize there is an audio degradation as compared to the hard-wired DAC dongle, but the convenience of having my phone NOT physically connected to the stereo rig outweighs the fidelity loss. I have both high quality Bluetooth and wired headphones, but I prefer the sound of my more traditional stereo system. So yeah, I use the thing every day to add a Bluetooth input to a purist analog stereo system.

[obscurazone]

How timely! Im actually looking for a Bluetooth receiver right now as I just got an Epson projector that has Bluetooth built in, and I want to throw the audio output to my HiFi stereo set-up which is placed on the wall I project onto. It's an Onkyo A9050 amp, which has an inbuilt DAC that sounds great, but I just need a Bluetooth receiver now plugged in to it in order to catch the audio from the projector. The only other alternative is to trail an 8 meter wire across the room. Bleugh! So yep, for Bluetooth ready projectors and getting great sound through your stereo speakers, a Bluetooth receiver for your amp is super handy :-)

[imqqmi]

Could be used to mod an old mediocre amp from the 70ies or 80ies for example and hook it up to bluetooth. It's small enough to put it in the case with a 5v usb psu.

Or combine it with an power amp module to make active BT speakers.

[MechFrankaTLieu]

Yes as a commuter using public transportation, and having to spend upward of 80 min per trip and 2 trip a day I got a lot of time to had music on the go and the bluetooth DAC/AMP is a very useful part of the setup, I can put it inthe bag and had the cable run from the bag to the headphones or I can put it inside my coat pocket and had the short cable to run the signal when all the time I had the control and player on the phone which now is not hindered by a cable that need to run to the headphones

As always there is a reason for any product's existence, Bluetooth DAC/AMP is not even new it had been around for a very very long time and while the Fosi is tailored towards the Audiophile / Music enjoyment sector there are other that tailor to more mundane needs like industrial, educational, etc etc

[carminedesanto]

Good morning from Toronto

My daily carry consists of the IFI go blue and a nice wire that is soft supple, and that plugs into a nice sounding IEM’s of which I have many to choose from great video and you’re never as old as you think you are in the Audio game take care enjoy the weekend

[wayneg]

I have a 35 year old Proton table radio in my garage with RCA inputs and an AM/FM receiver. I use my iphone as a source and broadcast a Bluetooth signal to a Bluetooth receiver with the receiver output in turn patched into the RCA inputs of the Proton. Provides good-sounding music while I work on my cars.

[DartzIRL]

Yes. I've one hooked up to my old AV receiver right now.

It lets me save my Spotify playlists to cassette tape for offline use.

Home taping - still killing music to this day.

[zloboslav_]

I have 2 of these type of devices, from different manufacturers.
One I use in my car, the other I use with my computer, when I want to move without taking off my headphones.
I find these devices very convenient.

[poekiemanpoekieman]

Using it for my oldish Pioneer VSX-2021 receiver, for which it seems there exists a Bluetooth thingie, but I couldn't find it.

Bluetooth SBC (or sth) has (sometimes) audible compression issues, so you may want to look for a bt receiver that supports aptx or similar.