The tubes are quality and easy to install int main unit body.

The tubes are quality and easy to install int main unit body.  Read Less

Great entry level tube amp with a good construction.

Great entry level tube amp with a good construction.  Read Less

This fosi x2 does not have a slow power-on buffer circuit, and it will pop really loud through the speakers at times, when turn...  Read More

This fosi x2 does not have a slow power-on buffer circuit, and it will pop really loud through the speakers at times, when turning it on, which is not good for the speakers or main amplifier.  Read Less

The amplification circuit of this fosi x2 is actually 3 digital op amps (intergrated circuits).

The amplification circuit of this fosi x2 is actually 3 digital op amps (intergrated circuits).  Read Less

For the cost and return on this product, in my mind it’s a 100% buy.

For the cost and return on this product, in my mind it’s a 100% buy.  Read Less

And it’s easy on the budget too!

And it’s easy on the budget too!  Read Less

I’ve tried about 6-7 including my vpi at a cost of 500.

I’ve tried about 6-7 including my vpi at a cost of 500.  Read Less

I could have gotten a cheaper pre amp for the turntable i received from someone down sizing.

I could have gotten a cheaper pre amp for the turntable i received from someone down sizing.  Read Less

The unit arrived quickly and was very easy to assemble and set up.

The unit arrived quickly and was very easy to assemble and set up.  Read Less

Tubes come packaged with the unit well protected.

Tubes come packaged with the unit well protected.  Read Less

Much better than the built-in preamp of pioneer plx-500, and similar hanpin products.

Much better than the built-in preamp of pioneer plx-500, and similar hanpin products.  Read Less

Makes a difference, i replaced the chinese tube with american made ge tube's (so it says on the tube) and the sound is great.

Makes a difference, i replaced the chinese tube with american made ge tube's (so it says on the tube) and the sound is great.  Read Less

For $60 dollars you won’t find a phono preamp any better than the fosi.

For $60 dollars you won’t find a phono preamp any better than the fosi.  Read Less

I’ve formerly used the phono preamp uturn orbit, phono preamp of emotiva, a nad phono preamp and all of these did not measure u...  Read More

I’ve formerly used the phono preamp uturn orbit, phono preamp of emotiva, a nad phono preamp and all of these did not measure up to this small and cheaper fosi.  Read Less