Build a High Power Amplifier Using 20 Transistors - MICRO BOOSTRAP with M-270 BOX

PCBA from $0（Free Setup, Free Stencil）: jlcpcb.com/DYE
Hi friends, in this video I try to make a high power amplifier. This amplifier consists of 2 channels (stereo). Each channel uses 5 pairs of end transistors (2SC5200 & 2SA1943).
In this assembly, I only used a 5A 47VAC transformer. But this amplifier can still be upgraded up to 10A 55VAC (if using the same box). The total budget for this amplifier is around $120.
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#Amplifier #AmplifierBuild
#StereoAmplifier #PowerfulAmplifier
#HighPowerAmplifier #PowerAmplifierBuild
#cbzproject #StereoAmplifier20Transistor
#20Transistor #HowToMakeStereoAmplifier

[@cbzproject]

Full Assembly High Power Amplifier with Toroidal Transformer 70v 0 70v👇👇 kzbin.info/www/bejne/eqSchqOrpbmneNU

[@RFmaster89]

Couple of observations: 1) Use masking tape to protect painted panel from accidental damage while drilling holes. 2) Use nyloc nuts to secure modules to the chassis. If nyloc nuts are not available use thread-lock blue - Loctite 242 to keep nuts from backing off 3) Always use a wire hook to connect a wire to eyelet :( Do not rely on solder to provide mechanical support.

[@karmlan123]

OMG! The two loud cooling fans adds to the music.

[@dougieroberts7045]

Oh right, an amp that the fan sounds louder than the music, marvellous.

[@joshpoe]

You've never built a solid state amplifier that's obvious. People like you should start with a high voltage vacuum tube amp. Do zero research, maybe you won't live through it.

[@dougieroberts7045]

@@joshpoe Thanks for the advice, appreciated, I will save myself some money and buy something that sounds half decent instead.

[@joshpoe]

@@dougieroberts7045 before you judge maybe you should understand what speakers are being used and how this was recorded. I've listened to 1 million dollar Krell and Mark Levinson systems generating thousands of watts but for musicality I've been more blown away by analog systems running off batteries making less than 50 watts.

[@ConorNoakes]

That’s fairly average by PA amplifier standards…

[@Tremodua]

@@joshpoe This amplifier is not so powerful to run fans on idle or low load. My Yamaha amplifier turns on fans only on high load. And good amplifier has to have balanced inputs.

[@cbzproject]

Build a High Power Amplifier - MICRO BOOSTRAP with XTI-2000 BOX: kzbin.info/www/bejne/kKClqa2wnbSEibM

[@willowsdmx]

ha, i saw what you did with the speakon, mounting holes where drilled in mirror, so you needed self tapping screws :) instead of the normal M3 bolts Nice work, would have chosen a heavier transformer though.

[@Reza.Audio118]

joss tenan ki power balap

[@sakriayu9114]

Sangat kreatip sangat rapi seperti power pabrikan,sangat bangga ada orang sulsel bisa begini😊

[@cbzproject]

Thengkyu👌

[@uwok1081]

@@cbzproject itu dijual nda bang

[@john_smart7212]

@@cbzproject di jual berapa bang

[@cbzproject]

[NEW] Build a high power 4-channel amplifier: kzbin.info/www/bejne/pZ20ZqF7rpyMmtU

[@SylwerDragon]

Nice looking amp. I'm a bit worried about lack of protection. I didn't see any fuse on that transformer. Also there should be some inductance to remove noise from line. I also didn't see any fuse on other side of that transformer. But who knows maybe there was some. Anyway. I would suggest to add steel plate from both sides so actual amplifier is shielded from transformer .It might help a little to remove the hum/noise.

[@alexandrefournier-ahizoune8098]

the fuse is located in the ac connector socket @4:52

[@Daaremikkel]

There is a fuse on the power inlet. A noise filer would have been nice, but there is no switchmode stuff and a lot of capacity, so I am sure it is fine.

[@SylwerDragon]

@@Daaremikkel yes Sorry i did miss that. I'm glad for that also i'm glad for that second fuse on secondary. As you said some filtering would be nice and i'm not sure how effective it would be but i expect it will loose efficiency once higher power will come into play..but still it might be good idea to test it. Could you please make simple check ..Bring proper laboratory 6.5 digit meter and test AC voltage at the input of your power stage..I know you can't check all frequencies only line .but still this might show you how much AC you have in your amplifier..I would also suggest to check it with some load..lets say 400Hz on input with full power and then check it again..

[@expired56k]

@@SylwerDragon That and adding speaker protection would be a great idea especially given plenty of room inside the chassis. Overall, I think for the advertised budget it's a pretty solid build. Speaker protection would have only added maybe $10-15. At least in this build amp heatsinks are properly installed in line with fan airflow, seen so many in these DIY videos that are installed perpendicular to the airflow.

[@anwarbudiono8621]

Makasih atas ilmunya

[@garyalexander5686]

Beautiful work. Thanks for this.

[@cbzproject]

High power amplifier using 40 transistors. Video link👇👇 kzbin.info/www/bejne/bpSvoGRmrZKSkMk

[@girlanecunha972]

Compra

[@john_smart7212]

Kalo pesen lewat mana bang

[@jeevanwaghela8285]

@@girlanecunha972 CBZ.projackt.kaha.milte.hai.thoda.bata.sakte.hai.ple

[@Dutch-linux]

where did you get the amps from? can't find them anywhere .. would be nice if you included that information thanks

[@MarkPrince1317]

Very good looks so professional 👏👏👏👏🇵🇭

[@cbzproject]

Thanks

[@lilushan1]

Nice build... But the amplifier looks underpowered with that transformer

[@ivan_production1448]

Mantap Mirip built up mas salam dari jateng kab.pemalang hadir terus tapi jarang komen

[@cbzproject]

Sipp👌

[@McSepplens]

This is the highest quality advertisement I have ever seen in my life, for this please take my money

[@ChakshuSharma_CANNOT]

Transformer needs to be 10 amp at least for utilizing those transistors at full power output. otherwise nice build.

[@archdukeofsynth]

Invest a couple bucks in an automatic center punch, it will make drilling accurately a lot easier.

[@andrizaenal6398]

Im from indonesia i love sulawesi 🙏

[@irwinkuswardi2237]

Well built👍👍nice looking amp

[@jhabarretto9697]

Amazing. I had no clue 1 person could make an amp

[@AkkerKid]

This one person didn't make an amp. This one person assembled a few store-bought parts in nearly the worst, still usable configuration. This is a demonstration of what NOT to do. Instead, use the right sized components, don't run power, signal and output wiring anywhere near each other, add more fuses, etc...

[@dtwistrewind7361]

@@AkkerKid balanced input would be nice but as you stated I don't think isolation of power and signal was his priority.

[@R124FL]

Makasar sulawesi - surabaya jawa timur 😂😂✈✈✈✈

[@stevesmyth4982]

Never rely on a soft soldered joint for mechanical strength. The holes in the transformer tabs are there for a reason, you're meant to hook a wire through each and make the joint so the end of the wire is evident. See 11:40 into the video for what I'm typing about. With the transformer connected as shown you'll get around +/- 21 V DC, hardly a high powered amplifier - maybe this is an advertisement for the PCB manufacturer that you get paid for.

[@wraiths_]

I know its been months, but I believe that is a particualr brand of transformer prevalent in Indonesia which has multiple outputs. Usually it has support for preamp 12-0-12 or 15-0-15 located at the bottom while on the other side has the higher output usually 28 to 55 volts

[@JLCPCB]

Very cool, great work! 😁

[@lizettegarma6280]

Beautiful work and slowdown your video im a beginner in electronics bro

[@mikerichards8171]

Hi... amazing work But do you have a component list and a tutorial on how to build the board off the pcb??? For the amp section

[@mikem4633]

Great video 👍🏻 Back room amp, not a fan of fans in amplifiers.

[@circuitsimulations]

Such type of videos are only assembly. Nothing about actual circuit design. Btw good effort

[@AnilKumar-qo6ei]

Super clearty good job sir ❤

[@ubaicreative86]

Jakut hadir broo

[@dominikusqdjempal6845]

Seems like a picture of Sulawesi island of Indonesia attached to the board.

[@bonkchannel1058]

West Sulawesi product🔥

[@ppaolosan]

what kit is this and what features has it? output power ....price brand and so on

[@davetechvlog]

Nice power sound system

[@AbdulAzis-zt1ud]

How much does the power cost bro

[@user-he4dl7cj7k]

Behtarin luk👍👍👍👍👍

[@DafitFirdausVMU]

next bikin power 500 watt untuk class indoor gan ....4 channel

[@yogiyogi7896]

Elahhh beli ajaaaa yg pake tabung juga adaa... Udah dolby atmos pulak.... Optical cable to speaker pake velodine

[@whatevernamegoeshere3644]

Bro... Why did you zip tie audio, power and mains power cables together? That single step blew your insulation rating AND made it more sensitive to noise and interference. Also using black for earth? You took 4 premade components, put it in a box and screwed up the wiring. That was a 16 minute video. Nice.

[@AkkerKid]

None of the wires soldered went through the loops. No vibration mitigation on the solder joints. Fans blow back to front and are powered by wires parallel the audio signal. Eventual galvanic corrosion between steel and aluminum due to lack of isolation. Undersized transformer. No fuses beyond the C15 power jack. Binding posts are INPUTS?!!? I'm guessing this guy is FRESH out of school. Make a few PCBs and now you think you know everyhing.

[@dexcronicle9813]

@@AkkerKid mohon buatkan saya video yang benar tentang ini,saya sangat membutuhkan dari seorang profesional seperti anda...mohon

[@dexcronicle9813]

@@AkkerKid mohon buatkan saya video yang benar tentang ini,saya sangat membutuhkan dari seorang profesional seperti anda...mohon

[@AkkerKid]

@@dexcronicle9813 Sorry brother, I don't have need to build one of these. If you plan on building your own, keep in mind a few requirements. Keep high power and low power signals separate so you don't introduce noise. Make sure your weakest components are fuses so they break first before anything else. Consider gluing down large components like power capacitors so they don't break off of your PCBs.

[@eudesjose6733]

Muito bom. Da hora.parabens . Eu compraria. Só falta colocar mais LED . Na frente.

[@sanjeevkumar-hx4hi]

love your skill and your Indonesian brother Romadhon work too. Mantap. Love from India.

[@KraeuterDZ]

a powerful amplifier with a radiators located UNDER the amplifier boards, with no air inlets in the bottom of the housing; probably only for use WITHOUT the housing...?

[@jlinkels]

it is not very relevant. The amount of air blown by the fans is way larger than the amount of convected air. If it is a sound design when listening to low level music is a different issue. I don't believe in power cooling by default.

[@raxxtango]

NEIGHBORS LOVE IT

[@pankajverma9412]

Amplifier finishing so good voice quality 💕 full amplifier beautiful 🥰

[@faltukfunde8867]

I want to buy this cabinet please tell me how can I buy this cabinet....

[@mumukardan1009]

KK klo itu di jual harga brapa ya... 🙏

[@tgctech]

kirain org barat njir, pas lihat pcb kok pulau sulawesi trnyata org indo, mantab

[@edifierbass7821]

Its more on assembly not a DiY for sure, but if you're in a hurry this one is practical less job in no time...

[@shundhem_electrick]

Wow amazing

[@vigilanciacem2670]

Me puede compartir gerber de las salidas a bocinas??

[@harisprayogo6665]

Pcb untuk potensionya dong bos di upload di shoope dong

[@emilhiprock7580]

Mantap ada logo dri pulau sulawesi

[@KILL-pz8ns]

thank you sir useful video

[@Alcharim46]

Nunggu offlinenya. Akhirnya bisa di dwonload . Wkwkwk

[@gmmixvlogs3321]

Quality build👍

[@ramachandran5854]

5amptransformer..notenough..power..two..board..work👍

[@rickr7333]

Do you have a parts list and vendor information beyond the proto circuit board house? Or are you selling plans?

[@anwarpspsanwar]

Congratulations 👏

[@nazlafarhan9050]

Outputnya berapa watt bang,dan sanggup angkat berapa speaker??

[@dedeporesofficial2796]

Mantap jga yg ini mas.

[@suhartantotanto6558]

Joss mase...

[@MT_Pro_Audio]

Bikin produk masal saja bang, dijual dipasaran pasti banyak peminatnya bang👍

[@yogibeghie2246]

merk trafo ditutup, tp coba saya tebak.. pasti merknya Beii.. 😆 oh ya, sekali kali backsound ny pake tarling mas, biar mantep.. 😀

[@JohnDoe-es5xh]

You scratched the case next to the red connectors on the back. Why?

[@iceman45ification1]

I love the work you do!! 👌 Would it possible in the future if you can get a good set of speakers with tweeters too? I'd love to hear how your amps perform in the upper frequencies.

[@narmale]

lolol imagine judging audio quality of components over a sampled and encrypted data stream on youtube...

[@iceman45ification1]

@@narmale and I'm supposed to care about that?

[@narmale]

@@iceman45ification1 well its obvious you dont 🤣🤣

[@iceman45ification1]

@@narmale you do realize that people that laugh at their own comments is a sign of mental issues? You definitely made that obvious.

[@narmale]

@@iceman45ification1 haha, well i did get 37/36 on a psychologist test for a psychopathic tendency questionnaire... but id rather laugh at jokes then be a karen like most people sour with life and age, they typically just end up fat, bald, jowled, bitter and hatefull of everyone around them.

[@subramaniamchandrasekar1397]

Looks like 40+40 watts amp with small transformer (47V CT 5A), very large heatsink and 2 unnecessary fans. Why you go with small transformer?

[@ridwanmursalim2754]

Hadir bosku, salam dari sulawesi tenggara

[@cbzproject]

Sipp👌

[@syaifulboy2452]

Mantap boss👍👍

[@kitamuram4389]

High quality audio amp is always being quiet itself then no fans , no?

[@bones007able]

what are the possibilities of putting in a bass and treble control?

[@moondewri7080]

loved it

[@MdAsik-qw8rz]

Nice

[@snaudio43]

I really like this video

[@cbzproject]

Thanks

[@moondewri7080]

nice work

[@luiscarlossilva3744]

Luiz from Brazil , Schematic please .

[@GOLDOLESTEGP]

Aku suka karia-kariamu brow👍👍

[@cbzproject]

Sipp👌

[@Supraseries]

Bang gak jual power di toko online shopee yang sudah jadi semua

[@cbzproject]

Nggak ada

[@Supraseries]

Adanya bikin sendiri dan beli kit power nya aja mas

[@syaifulboy2452]

Kerjanya kemas👍👍

[@febrianibrahim4610]

Where are you from, why is there the Indonesian island of Sulawesi

[@solder_jahat.]

josss masszeh

[@hasanamirudin6249]

Mixernya merek asley tipe apa mas ?

[@Sajuamunger1234]

Yah machine humko lena hai iska pura saman ka rate bataiye

[@konohh]

Anyone noticed the upsidedown caution and warning triangles on the backside?

[@kesumallula3153]

good project sir nice video how much watts ka amplifier boards used?

[@music_reup]

Micro boostrap mantap..

[@ROCKxFARMAN]

5ampere is very low use 20 ampere transformer for 20 transistor

[@cbzproject]

20A transformer is not suitable for this box

[@sanjaymaisuria703]

Veri good

[@saringaclose]

GOOD WORK BUT HOW MUCH DID IT ALL COST AND HOW MUCH RMS IS IT KICKING OUT

[@user-hl5fk2qe3e]

สุดยอดเยี่ยม

[@rullypratama]

It may be a silly question, but I rarely if never see an amplifier using switching type power supply. Why?

[@jorgearrivasplata8505]

Buenos días, Las fuentes switching no se recomiendan en estas aplicaciones por su esquema de entrega de corriente casi constante. Las fuentes para equipos de sonido pueden entregar grandes cantidades de corriente por un periodo corto de tiempo, para responder adecuadamente a la naturaleza transitoria del sonido. En resumen, las fuentes swithching se recomiendan en aplicaciones donde el consumo de corriente es prácticamente constante, mientras que las normales para estos casos (y otros, claro)

[@AkkerKid]

1: cost 2: "this is how we've always done it" mentality 3: SMPS would need high switching frequency and good filtering to make sure noise doesn't make it's way through. 4: would need tight integration with the amplifier section so it can preempt large current draw and not rely on watching the voltage of it's output dipping before it reacts to add more current in. 5: Most professional amps (at least all the recent ones I've seen) DO have SMPSs. 6: in the end, amps with SMPS are better since they can recharge capacitors must faster than 60Hz so you can use capacitors that are smaller and produce higher total output at lower frequencies.

[@veerendrasingh2079]

Your video is very good but where to buy this amplifier why you don't know please enter the link

[@yogeshsingh_1177]

Price?

[@Istoryahetvvlogs]

Good Job .... super like amigo..

[@teampakoyvlog1975]

Wow nice amp

[@TUTORIALLISTRIK303]

Is very good 👍👍

[@edisugito1977]

Pcb terminal spiker itu sama panel depan caranya beli di mana

[@hasanuddinlalot4363]

Senin 24 Januari 2022 15:43 👍

[@marsukivivoy2190]

Sama punya ku 5@ tpi trfonya murni 45 tpi mau ganti yang gede 10@ tau 15@ biar tambah power. Tpi aq salut n bangga dengan hasil nya rapi dan oke punya

[@cbzproject]

Thanks

[@haridasmardi9981]

Kitna wat ka hai kitna dam hai bata do

[@AkbarTradingCenter]

Terima kasih sharing vidionya..