Fosi Audio BT20APRO 300+300 Watt Stereo Amplifier, Audiophile Quality Sound, Review and Audio Test

Audio test and in depth review of Fosi Audio BT20APRO 300+300 Watt Stereo Amplifier.
Click here to buy:खरीदने के लिये यहाँ क्लिक करें.
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Aliexpress: a.aliexpress.c...
Official website: www.fosiaudio....
15% off promo code:MKTBT20APRO15 (only works for official website)
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The Fosi Audio BT20A Pro is a new generation Bluetooth amplifier integrating the high-performance Texas Instruments 3255 amp chip, which can bring up to 300W power per channel and allows ultra-low distortion across the audio band and superior audio quality. With tone controls, you can adjust the treble and bass in catering to your own preference. The BT20A Pro is designed and made to bring you a whole new music enjoyment experience.
Specifications
Max Power Output: 300Wx2 @4Ω
SNR: ≥108dB
Terminating Impedance: 2-8Ω
THD: 0.005%
Power Amplifier Chip: TPA3255
Power Supply: 32V 5A
Input Range: DC 24V-48V
Frequency Response Range:
20Hz-20kHz(±1.2dB)
Bluetooth Transmission Range: Up to 50Ft
Bluetooth Codec: AAC/SBC

[@foreverrs4377]

Main iska baare main apko ek comments kiya tha sir or aaj app video leke aye thank y sir

[@shammidang5149]

One can buy these kind of small class D amplifiers as these are very reasonably priced but for long term users and ppl who give weightage to overall tonal balance and clarity in all tones like bass, mids and treble class A or AB with good set of speakers are the best options. Hope I am right on that. From the sound demo I can make out that this particular model sounded good only when bass and treble is above 3/4th and vol is more then half.

[@vishaalgargi]

U can fix it with eq man. No matter what class amp u got without boost to highs and lows u wouldn't enjoy listening at low volumes. Its just how it works.

[@shammidang5149]

@@vishaalgargi I have a class AB amplifier (100w per channel). It sound loud and clear even at flat setting and less then 1/4 volume I do not use equalizer as I use the CD source/other source routed through an external DAC to amp. However I am not against class D budget amps. They are good in that price range.

[@antibiotic534]

​@@shammidang5149 Absolutely.. class AB anyday

[@shiva1982]

only class A amplifier are the best and any technology can not replace it any how. class d is only can be good for low/deep bass. so just forget you can get a crisp and clear sound output from a class d amp. this same guy told us about the same... and now he is promoting a class "D" amp for his earnings (in $)= mind it, anyways its debatable. you guys 1st listen any good class A amplifier or in fact class AB amp then compare any top most class D amp .. you will get my point. class D = money/buisness. Class A= sound quality. Class AB = perfect balance between sound quality and affordability. 1st listen using 1 same set of speaker then decide. do not go for promoted videos like this. money is hard to earn. save it even for years to get the bestest best sound from you money. always listen with your ears practically with any sound device. before making any decision. save this comment as screenshot or copy paste it anywhere. trust me this is the only fact😅. this guy might remove or block me forever 😅😂..

[@shammidang5149]

@@shiva1982 I totally agree with u on class A and AB amp total quality. I myself have used an amp that was class A in the preamp section. Now i do not have that amplifier but I still remember it's tonal signature. I use a class AB simplistic, no nonsense amp now and I can say all this being a non technical/electronical person. There are class D amps in the higher price bracket that come from European and American brands but I am not sure how they sound.

[@SumanRoy-jy3rr]

सर, जब आपने पहली बार अपना चैनल खोला था तो यह सूचनात्मक सैद्धांतिक वीडियो थे, लेकिन धीरे-धीरे आपके वीडियो प्रमोशनल वीडियो बनते जा रहे हैं, पहले मैंने सोचा कि आपका चैनल दूसरे चैनलों से अलग ।लेकिन आज की स्ट्रीम में आपका वीडियो कंटेंट किसी अन्य चैनल जैसा होता जा रहा है। मैं उम्मीद करूंगा कि आपको अपने चैनल पर पहले की तरह ज्ञानवर्धक वीडियो मिलेंगे। नमस्ते

[@rajeshkumarsarswal8324]

You are right S.Roy ji

[@farhankhan-dh2tu]

Very nice information given on the board specs.... Sir love to watch all of your videos may God bless you and your channel

[@mohansuryawanshi6216]

Dear Sudhir ji, I have LOTTE HF 50 (south Korean 3 way speakers with Midrange, Silk Dome, Woofer marketed by ONIDa long back in 2020's) I have short listed three amps here one is AIYIMA metal A01 Tpa3116 Power Amplifier, second: Fosi Audio BT30D Pro TPA3255 Hi-Fi Bluetooth 5.0 Stereo Audio Receiver Amplifier and third Sound king 25000 which has the Audiophiles sound qualities.

[@bingewatch3553]

All these amps claiming 300 and 400 amps are just marketing gimmicks and will result in very high harmonic distortion. or otherwise u have to use it in mono mode.. keep the thd below 1% and it should sound sweet ..

[@Mahitechnician]

Sir pls theory video continue kijiye ...

[@rohangharapankar1292]

Sir mera ek swal hai ki jaise ki sony philips ke jo music systems hote hai inme konsi ic lagi hoti hai ya iska kya circuit hota hai

[@VijayYadav-ym5ev]

Amazing review sir! For me its not possible to judge the sound quality but your words brings confidence. ‘Sound not so attacking, harsh treble Mellow and soft sound ‘ All these attributes make me imagine the sound in the light of your understanding. I wonder if you can get some music from your friend’s instrument or voice of your own That would prevent you from legal issues. And then the comparison of the sound with or without the amplifier etc. i trust its easy for you sir!

[@WhatIThink]

Thanks vijay ji..

[@VijayYadav-ym5ev]

@@WhatIThink Sudhir ji I am thinking of buying the DIY set of three way speakers from doodgesound You approve that?😅 Can i get use this amplifier for that? If no then which one is appropriate? Please suggest

[@iikatinggangsengii2471]

yes agree, the topping stack will sound good, or at least dx7/ m11

[@iikatinggangsengii2471]

ofc itll run well on anything s.a smartphones, but youre 'wasting' alot of their 'power'

[@kamleshshrivastava560]

इसके लिए कोई अच्छा सा pair में three way speaker भी बताने का kast karen

[@arnabelectrodiy]

Dear sir, Fosi audio sent me this same product in Bangladesh for review . But My question is Did you pay any taxes for this product?

[@sibajiray]

Kindly suggest the speakers and sub woofer to be used for this amplifier.

[@PradeepShakya-nm3yd]

सर आप power Amplifler के difirencial stage , VAS stage, driver stage and output stage, को आप bread board पर बनाकर DSO ocilloscope कि सहायता से उस पर बनने वाले signal को explain कर सकते हो कृपया आप कुछ videos इन topics के ऊपर बनाओ 🙏🏻🙏🏻🙏🏻😊😊😊

[@ManuKumar-jl6ek]

Sir please ak video vintej type ke amplifier pioneer tec silver colors vale bhi dikhao

[@ABMUSIC6791]

Greetings Sudhir Ji As usual :D Its not that easy to impress you , you found cons in here as well :) One question about it - whats the difference b/w the audio quality via BLUETIOOTH and RCA ports.. I have noticed there is always a difference , either the BT audio sounds better in some boards or in others Aux sounds better. I had just looked at this amp yesterday on amazon and liked the specifications and BAM!!! here is your review the very next day , great coincidence. I am still using your fav XY-T100L ( its my 2nd amp as I had accidentally burned the regulator chip on my first XY-T100L) and also bought a 50+50w XY-C50L as well just to nose around. You had advised me to look for 3255 based amps back then ( In may 23) .AIYIMA and Fosi look good and are solid performers.. I will be buying this one if you feel among all the 2.0 TPA3255 based amps this one ticks all the boxes. Thanks all the best Take care

[@WhatIThink]

Audio quality through BT is decent enough in this amp. But RCA audio quality greatly depends upon the source. This board has excellent audio quality through RCA input also.

[@ABMUSIC6791]

@@WhatIThink Thanks for the reply Sudhir Ji , But I am in a fix now, it seems the amp is out of stock at amazon ( I was about to make the payment and poof.. it just went OOs) , and buying from aliexpress and ebay is out of the question ... Any thoughts on where to buy at a decent price .. Thank you ( I don't prefer to buy from conceptkart , haven't had good experiences ever buying from them )

[@WhatIThink]

Please wait for few days... It will come back in stock.

[@dilippandey3963]

sir apka review to bahut acha h lekin ek bat samajh me nhi ati ek traf to aap kahte ho class ab se achhi sound quality kisi ki nhi hoti whi aap class d ki bhi itni tarif kr rhe ho hm ye smajh nhi pa rhe ki kisme paisa lgaye ab ye aap hi btaiye reply jrur kriega

[@WhatIThink]

Class ab to best hai but branded me beyond budget hai... Class d ke acche amp budget me aa rahe hain... Decide aapko karna hai

[@kingpklowbasslover7220]

Output to clear h❤❤❤

[@lijojose3462]

SIr, Fosi BT20APro or Aiyima A07 Pro...which would u suggest?

[@Amal-hp9ny]

Sudhir ji, Excellent Reviews. Between BT20a pro and Aiyima D03, which sounds better?

[@bajradebmitra3827]

Very nice and cute product. It is a made in China amplifier. I want to know if there is any service centre of Fosi Audio in India?

[@mohansuryawanshi6216]

What is the difference between Class A and Class D amplifiers in all aspects like sound quality power handling etc.

[@amitghosh6966]

Please tell us which company 3773 transistors we should use if we don't get original Bel transistors because so many local brands like NL, DE, RFT, CDIL etc are available but we don't know which one is better and can work properly on higher suppy voltage of 18-0-18 to 24-0-24 Volt Instead of 12-0-12 Volt & also what's difference between using 3055 & 3773 transistors in amplifier board? Please do a detailed video on this topics because many confusing videos are available on KZbin which says many things but all confusing

[@Okhe133]

Sir please please i request you 🙏🙏🙏 (g tech audio) ki 4k hdni colour decoder ka ek video banae....usse kese use Karen amplifier main aaur kya kya sound decider jarta hai wo sab kuch please sir 🙏🙏🙏

[@dilshanansari2441]

Sir ek sawal hai. Xinyi sini 350 model class d amplifier 220w × 2. 350w sir inme kitne amp ki battery honi chahiye aur toroidal transformer kitne ampere ka hona Chahiye jo battery charge aur amplifier dono use kar saken please sir give me a answer.

[@jppj1231]

बहुत शानदार है

[@prakasheraniyan3262]

This is best for three way speaker

[@jaihindjaimaharashtra8414]

Mera 3116 d2 2.1 is se jada accha bajta hai bhai ek dum blast kar deta hai 256 square fit hall ko

[@agsarijeetgraphicsstudios4420]

What is the best for quality wise Bluetooth or Aux or RCA beacuse some time network connectivity may vary

[@SSK.T2]

Great suggestion for a best buying option at least for me, thank you.

[@VIKASKUMAR-sg2yj]

Sir kya class AB or class D ko merge kar kay Amplifier bna skte hai kya? Agar yes toh kaise bnaye. Or nhi toh kyu nhi bna skte, please ek details video bnaiye.

[@vikasswami2661]

Sir pls suggest speakers for the same model,can i use Elac Debut 2.0 B6.2 bookshelf speakers???

[@encashash]

Hi Sir, should I go with fosi audio or sound king 2 channel amplifier?

[@gyclevererdaisyyt]

Sir home made Studio monitor ke liye konsa Amplifier kit thik rahega pls reply

[@kuntalroychowdhury7125]

Dear sir, how can i play two different Bluetooth speake and a subwoofer though any Bluetooth/device at a time. If you please explain it, i will be great full to you.

[@sumandhamala8514]

Please make a detailed review of ZK-AS21P 2.1 amplifier board.

[@bestvideos3337]

Sir good evening sir aapko mail kiya hai sony GT4D home theater k liye vo work nhi kr rha hai to please koi best board ko solution dijiye.

[@zulfiqarhussain1103]

Very informative and interesting video ✌

[@aakshgaikwad6995]

sir mere pas 12v 14amp ki battery hai usme mujhe 200 watt or koi aur amp bataiye jisme 8 in ka 1 woofer and 4/6 in ke 2 mid laga sakte hai

[@bilaljaved8882]

What would be the best voltage for this amplifier When i am using 2ohm load per channel?

[@Mrpraveen8686]

12 inch 200 watt Ahuja how many speakers can be used? Pls ryply bro

[@9505616688]

Bro which one is best fosi BT 30 D PRO VS BT 20 A PRO VS V3

[@anupamdas4913]

Brother Mera pas edifier 1380 t 42 watt bookshelf speaker Hai... keya e amp se pair kerne ke bad or achha sound milegi...! Na mujhe Q acoustics boolsefspeaker Lena chahiye

[@WhatIThink]

This amp is for passive speakers.

[@abdulshaikh4512]

Sir muje tower speaker ka design chahiye prosiser kya hai

[@ErROHITGUPTA]

Best home theatre par bhi video bana dijiye

[@urmilachristian]

Main ish model ke saath 2 speaker banana chata hun so please guide me which brand speaker and tweeter

[@tusharafuwale7225]

very in-depth understanding and explanation of products and technology.. would love to know your name and contact.. why don't you add all these info in your about section.. I have few queries and interesting projects in mind. would love to get in touch with you..

[@user-dm7gl5ms5t]

Sir hamare pass 2200w class d amplifier hai.iska mosfet kam sound par bajane par garm nahi ho raha hai.or halka bhi tej karne par bahut jayda hit ho ga raha hai. 5819 diode nahi milne par 4148 ko lagaya hai. Sir hit kyo ho raha hai. 🙏please sir bataye...........

[@somnathnandi2444]

सर यह मिक्सर लग जाएगा. गाना गाने के लिए जो इको मिचार है उसमे सेट होगा

[@harishmehta8765]

Can you please inform in your testing video, which speakers have you used?

[@WhatIThink]

Soundking

[@harishmehta8765]

Thanks

[@nickdad7136]

nice amp. Sir 100 watt per channel at 8 ohms speaker ke sath chalega yeh amp?

[@WhatIThink]

Yes ... But then use 48 volt power supply.

[@djsutej9013]

Sir ji kya Hum TPA3118 D2 Class D Board Ko Pro Audio Me HF ke liye Use Kar sakte hai ??

[@WhatIThink]

Not advised

[@djsutej9013]

Please Suggest Me Cheap Board For Using As A Inbuilt Amplifier board for using 100 watt

[@musicready-ot9gg]

Can you please suggest me the best speakers for fosi bt20 a pro under rs 10000

[@masterbabban5748]

Which speakers are you using, from where to buy the speakers

[@ABMUSIC6791]

Greetings Sudhir ji🙏🙏 , with luck I was able to grab one piece of Fosi BT20A pro , from amazon India :), As it was recommended by you so I decided to go ahead. Now after buying XY-T100L (2 pieces, bought 2nd as I had burned the voltage regulator of the first and didn't want to wait but incidentally got the LM1805 regulator from mkt and got the first one fixed and working again :) 😁 ) and XY-C50L this will be my 4th amplifier . I am hoping for a better, wider and clear audio quality :) Its still in shipping so will update upon receiving it . Even purchased a few good sturdy BANA connectors as well to be used with FOSI with my speakers. There was one thing I wanted to ask, now that Fosi has option to change OP amps , can you suggest a reliable place to get genuine OP amps with some info about kind of audio quality that one can expect from them.... many Thanks 👍🙏🙏

[@WhatIThink]

Great..... Op amp sound choices are personal... There are many cheap one also. Since it has option to change, you can experiment and choose as per your taste. Start from 4458 and tl072.

[@dezgames5976]

which amp did you like the most? XY-T100L or Fosi?

[@ABMUSIC6791]

@@dezgames5976 if you are asking me then XY-T00L is cost effective already greatly tuned amplifier, use it with 24v good quality power supply and it's output will be great... Fosi has been tuned with more frontal mids and great low frequency response.. The higher frequencies have been kept at a level that they ll never become harsh ever... It has a wider sound stage and can woek with all kinds of speakers... With proper preamp and other equipments in audio chain, this could prove top class... But if you are looking for something at a budget just by XY-T00L and you ll never regret..

[@ANANDSHARMA-ug6hr]

Sir tpa 3255 cabinet set amplifier 150+150×300 wattage ka link vejiye

[@matharpravinpravin1134]

Sar aap stereo bluetooth vs normal bluetooth jankari de sakte hai plys..

[@um3035]

Very good video

[@vishnudevipujak2372]

Sar tda7388ic and 2sc5200 1943 mosfet 4.1 hometheater board banaye ye sir please

[@aditya391]

Is type k board me issue rehta h kharab hone pr repair karne me bahut dikkat aati h parts nhi milte and local repair shop wale ko samaj hi nhi ata hai.

[@Rockyt-om3vu]

UA 741 IC ka bass tribal cricket banaiye sir

[@A2Aelectronic]

nice video

[@mrnigam4486]

why no Ldac support for bluetooth codecs !

[@dinusingh5010]

Kya isme led tv connect kar sakte hai ,

[@TrozenTPlayzZz]

Awesome review sir 👍❤

[@dilipkumarpatra2617]

Sir tower speaker system box banake dikhao

[@abdulsayed1994]

Jbl key speakers ki Video banao plz

[@JaspalSingh-bk4ty]

Very good Video

[@rohangharapankar1292]

Sir class ab ke amp se bluetooth speaker ban sakta hai kya

[@pyvfx]

Can you please share the your speaker buy link

[@sandeeppradhan6873]

Which is better soundking sk 25000 vs this amplifier

[@ramanaraomandava6771]

Excellent sir

[@biplobkhan4564]

I am watching from Bangladesh How to get its price

[@milanmusicsounds746]

Sar ji namaskar mere ko cabinet design karna hai abhi tak mein cabinetper mujhe kuchh software ki jarurat hai vah aap available karwayenge sar ji

[@monomoynandi]

Tube preamplifier review plz

[@jigerpatel2666]

Sara kuch 60-70% use Kiya he to aavaj clear aayehigi na sir company wale smart Khel Rahe he

[@vijaytamrakar1019]

Please send price and link to purchase.

[@p.c1505]

For your knowledge👍

[@sudhirarya158]

Very nice performence of this amplifier, please make tube amplifier viseo, i will wait

[@abdulmusawir9668]

Does it really give 300 Watts as per you?

[@PradeepShakya-nm3yd]

Thank you Sir

[@narengurung8086]

Soundking sk2500 2.1 or fossi audio 30d pro which is best

[@tenida_chatterjee]

Obviously FOSI AUDIO . Please don't buy sound king . I am suffering.. go for FOSI audio ..🙏

[@VinodKumar-pi5ni]

Laptop ya computer se audio chala sakte hain ???

[@vikasswami2661]

Sir pls guide which speakers you are used in this video ?

[@vikasswami2661]

Pls tell sir

[@NOOBstar_YT]

😱😱omg price😲😲

[@gamrfire710]

Kya esma subwoofer calya ja sakta ha sir ❤

[@musicready-ot9gg]

What speakers are you using

[@karandex]

How it compares with t9

[@pwnjangid]

Ye bridge mode par chalega kya?

[@MisterBPK]

Compare it with Ahuja amplifier

[@musicready-ot9gg]

Which speakers are you using??

[@user-xl5kr7fl6b]

Sir price of unit, where to get from,, thnx

[@Gourab.92]

koi 100 watt wala stero amplifier ? audio qualty ka output asa hi ho ..

[@sonusoliwal1339]

Sir aap ke woofer konse company ke hai

[@therishabhdhiman]

Sir this one or SiniLink XY-T100?

[@WhatIThink]

Both are in different categories ... Choose as per your budget.

[@therishabhdhiman]

What if we do not have a budget problem?

[@bhanuprasadchinthapalli5760]

Aiyima 2.1 amplifier Review plzz

[@IDEALU123]

Price...?

[@hiteshghazal]

🎼👌💐

[@abdulsattarsekh679]

Vay tpa3255 iski rad (Rs)batao

[@yuvrajsinghrohilla]

Audio power RMS me hai ya pmpo me

[@WhatIThink]

RMS

[@abdulshaikh4512]

Sir main aap se batt karna chata hun

[@MdKalam-hg6sy]

how much