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Advice sought for Fosi BT20A Pro verses the Fosi P3 Tube

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Jul 16, 2024
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/ignore this post.


Hi,

Oh, look. Another *advice sought* thread :)

I am trying to decide between two small class D amps by Fosi Audio:


**Fosi BT20A Pro**
**Fosi P3 Tube**

Both have bluetooth for my iPhone, and both have RCA in, and have tone controls ( essential because of my tinnitus damage). The Fosi Audio ZA3 looks great, but I did not see a good small BT/RCA in to connect to the Fosi Audio ZA3.

I plan to use the RCA in for either my TV sound, or use it as an input for a tuner ( A Sangean ATS-909X2 so the hifi sound quality is not worth worrying about ). This means I have to plug/unplug each time. It is small lounge with 9 foot/3meter listening distance, and I will only use a 2 channel stereo set-up. I do not want anything fancier.

For comparison, my work speakers are a pair of Yamaha MSP-5 active monitors, but the Fosi needs are more relaxed warmer feel for everyday listening, but I do not wish to lose too much bite/attack around the 4khz mark if this makes sense.
However, I cannot tell which of these Fosi amps has a particular audio sound, or why.

Questions:

Bookshelf type speaker recommendations. I will actually put these on short stands. Any good ones out there? Will the Elec 6.2 work.

How does the V3 Tube sound and how does the BT20A Pro sound? (I will run the smaller PSU with this. *Not* the 48V.)


So, a first post help! :)
 
Last edited:
Please ignore my post.

Why? Every few years I seek out an tiny amp that I can connect stuff to, and then realise it does not exist. The Fosi kit looks great, but again we can only connect one source to it.

This means I must wait until 2025 to see if another manufacturer decides to make something small and versatile. It had been going like this since 1996! :)

Meanwhile, I will stick to my Yamaha MSP monitors for work, and just use my iphone speakers for everything else in the lounge. lol.
 
Screenshot at 2024-07-18 22-57-10.png
 
Please ignore my post.

Why? Every few years I seek out an tiny amp that I can connect stuff to, and then realise it does not exist. The Fosi kit looks great, but again we can only connect one source to it.

This means I must wait until 2025 to see if another manufacturer decides to make something small and versatile. It had been going like this since 1996! :)

Meanwhile, I will stick to my Yamaha MSP monitors for work, and just use my iphone speakers for everything else in the lounge. lol.

Fosi MC351 might be the solution for your problem? It only has one RCA, but a variety of input options: Opt, Coax, USB and Bluetooth.
 
Fosi MC351 might be the solution for your problem? It only has one RCA, but a variety of input options: Opt, Coax, USB and Bluetooth.
I think this could well work.


I can run TV and BT into it, and see if I can get a CD player into it as well later ( still unsure how) or even play my uncompressed AIFF over usb from my Mac, or from my iphone usb.
 
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