Fosi Audio TB10D Amplifier Review

[HuubFranssen]

This is the upgraded version and the noise is only 372u

Sorry for the confusing, we have upgraded a new version after Cheapaudioman reviewed, and the noise is only 372 uV now.View attachment 233732

Wow Cheapaudioman, thanks for the useful review!

 

[Fosi Audio]

Hey Fosi Audio, welcome to ASR and thanks for sending in this product for testing/review.

With respect to the above though, what about businesses that still have stock of the older release with the same model number? Or are you confident there are none?


JSmith

We are confident there are none old version in the market, because we only produced 200 units in the first batch, and they were sold through our own channel. When we received the feedback, we stopped the sales immediately and made the optimization.

And welcome to fosi audio to replace for the new release if you are not satisfied with the noise level.

 

[Sokel]

Soon, they'll build the whole amplifier into the SMPS supply and you'll just get a volume control in a matchbox on your desk...

Take a look at my mid-high amp (no PS,obviously)

 

[Michou]

We are confident there are none old version in the market, because we only produced 200 units in the first batch, and they were sold through our own channel. When we received the feedback, we stopped the sales immediately and made the optimization.

And welcome to fosi audio to replace for the new release if you are not satisfied with the noise level.

Challenge taken. Bought one just now on sale from Amazon's UK site, sold by FOSI Audio Factory. Final cost including shipping and taxes amounted to the grand total of $51.00. Will offer opinions after receipt.

【Old versions】Fosi Audio TB10D 600 Watts TPA3255 Mini Power Amplifier HiFi Stereo Class D Amp Integrated Digital 2 Channel Audio Receiver for Home Passive Speakers with Treble and Bass Control: Amazon.co.uk: Electronics & Photo

Free delivery and returns on eligible orders. Buy 【Old versions】Fosi Audio TB10D 600 Watts TPA3255 Mini Power Amplifier HiFi Stereo Class D Amp Integrated Digital 2 Channel Audio Receiver for Home Passive Speakers with Treble and Bass Control at Amazon UK.

www.amazon.co.uk

 

[composer]

This is an absolute minutia detail.

Shouldn't bass knob be on the left and trebbles on the right? According to what should be historically conventional

 

[PeteL]

That has become a norm in this class. If they tell the truth while others don't, it will cost them sales.

I have to admit, out anyone in the audio industry you are the last person I would have thought a comment like that would come from. Because It make it sound like an acceptable fatality, or maybe I misunderstand you you can perhaps elaborate. Getting more sales is the reason any manufacturers will lie in their specs, in any price bracket. But at the end of the day, disinformation is a plague, there is no good reason to lie and claim a product can do what it is incapable of doing. This disinformation spreads throughout buyers, buyers friends, not everybody has to understand the technical aspects but in this day and age of everybody can just say anything and present it as a fact, when a blatant lie like that is demonstrated, it really should be condemned, especially for the reason you mentioned, it becomes the norm if even science based forum consider this as just a business decision with not even a tap on the wrist, even a recommendation. A site like that should contribute in lies not becoming the norm. I think you agree, just felt this statement came trough with very much lightness, even if it's just an ascertainment.

 

[Sokel]

That has become a norm in this class. If they tell the truth while others don't, it will cost them sales.

Agreed,but if the single most important feature of an amp -power,amplification - is a lie we should know and avoid anyone lying and reward the honest ones.
This must be the norm.

 

[sarumbear]

All the Chinese "chip amp" suppliers exaggerate like that -- even the sensational Aiyima A07 is rated that way in advertising copy.

Everyone is a liar hence lying is acceptable? Where has the concept of punishing indecency gone?

 

[sarumbear]

This is the upgraded version, the noise is only 387UV nowView attachment 233724

Do you mean it is better than the one you sent to @amirm and tested above?

 

[sarumbear]

i dont know how anyone can complain about power... 40w @ 8 ohm w/ good thd at this price and size?

You buy a new cheap car to drive in town, to go to supermarket, etc. The dealer and the specs said it can do 90mph but you will only ever do 40mph at most so it is fine by you. One day you go out of town and realised that on the interstate you cannot even reach 50mph. Will you not complain and feel cheated?

 

[sarumbear]

• What you Get: TB10D amplifier x1, User Manual x1, 32V/5A Power Adapter x1(Note: You need a more powerful power supply to get the MAX 300W x2 power output, such as 48V/10A), AC Cord x1, 18-month worry-free warranty, and friendly customer service.

Their specs say:

• DC Input Range: DC 18V -48V

If we feed the amplifier with PSU rated at 48VDC @ 10A we can have a 480W power at input.

How do they then think the amplifier can generate 300W x 2 = 600W? Do they expect to generate 120W of energy from air?

 

[Sokel]

Their specs say:

If we feed the amplifier with PSU rated at 48VDC @ 10A we can have a 480W power at input.

How do they then think the amplifier can generate 300W x 2 = 600W? Do they expect to generate 120W of energy from air?

I feed mine +60/-60 plus +15/-15 plus 12V for Vdrive to meet the spec of 2X300watt.Sometimes I think they consider that people can't even use a simple calculator

 

[PeteL]

I feed mine +60/-60 plus+15/-15 plus 12V for Vdrive to meet the spec of 2X300watt.Sometimes I think they consider that people can't even use a simple calculator

Yours? You mean you have this amp and it does produce 600 Watts? In this enclosure with the same heat sinks? (if there are any). How long have you been able to run this test?

 

[Sokel]

Yours? You mean you have this amp and it does produce 600 Watts? In this enclosure with the same heat sinks? (if there are any). How long have you been able to run this test?

Your right to ask,it's not clear,no,I don't have fosi,obviously,I have Ice Power edge 300a2 (hooked on an 1200as2) and I'm runing them 24/7 for 9 months now (allthough they get on stand-by if they detect no signal for 13 min.)

 

[PeteL]

Your right to ask,it's not clear,no,I don't have fosi,obviously,I have Ice Power edge 300a2 (hooked on an 1200as2) and I'm runing them 24/7 for 9 months now (allthough they get on stand-by if they detect no signal for 13 min.)

Got it thanks.

 

[raif71]

 

[tomtoo]

r

Their specs say:

If we feed the amplifier with PSU rated at 48VDC @ 10A we can have a 480W power at input.

How do they then think the amplifier can generate 300W x 2 = 600W? Do they expect to generate 120W of energy from air?

Dear @sarumbear , dont you know that cheap class d amps and marketing will solve all energy proplems we have.

100W in 200W out. Fantastic!!!

 

[hex168]

Can someone recommend a safe, easy way to use this power supply with this amp or an Aiyima A07? Is is worth it?

https://www.digikey.com/en/products/detail/mean-well-usa-inc./ERPF-400-48/7703223?utm_adgroup=AC%20DC%20Converters&utm_source=google&utm_medium=cpc&utm_campaign=Shopping_Product_Power%20Supplies%20-%20External%2FInternal%20%28Off-Board%29_NEW&utm_term=&utm_content=AC%20DC%20Converters&gclid=CjwKCAjw4c-ZBhAEEiwAZ105RTQFSXWG1lu2Bfyla5kgijfs5izUAFwxRY6QiBlvIz1qQnFie-y05BoCTe0QAvD_BwE

 

[tomtoo]

Can someone recommend a safe, easy way to use this power supply with this amp or an Aiyima A07? Is is worth it?

https://www.digikey.com/en/products/detail/mean-well-usa-inc./ERPF-400-48/7703223?utm_adgroup=AC%20DC%20Converters&utm_source=google&utm_medium=cpc&utm_campaign=Shopping_Product_Power%20Supplies%20-%20External%2FInternal%20%28Off-Board%29_NEW&utm_term=&utm_content=AC%20DC%20Converters&gclid=CjwKCAjw4c-ZBhAEEiwAZ105RTQFSXWG1lu2Bfyla5kgijfs5izUAFwxRY6QiBlvIz1qQnFie-y05BoCTe0QAvD_BwE

That some more watts that you could get out from a different psu. Is like pissing in the missisipi and thinking you produce a flood.

 

[Xduoo Audio]

What does the SINAD mean? Why is it important that it even has a rank list?