Cheap 200w 2.1 Amplifier - Wuzhi ZK-TB21 Unboxing Assembly and Test
ฝัง
- เผยแพร่เมื่อ 31 ธ.ค. 2022
- The listing I bought it from: www.amazon.co.uk/gp/product/B...
Songs used (in chronological order):
Mortals - Warriyo • Warriyo - Mortals (fea...
Insight - Haywyre • Insight
Divide by Four Add Seven - C418 • Divide by Four Add Seven
I have made several Bluetooth boomboxes now and I made one with identical speakers but I paired them with some expensive bookshelves I found in the garbage. It’s awesome.
That woofer is beautiful😍.
É impressionante um amplificador tão pequeno ter todo esse poder sonora com tanta qualidade, fantástico😱
Tem o link dele?
Way cool video..that amp is pretty neat. Liked how you assembled it on camera. Nice speakers as well, good sound and clarity 👌.
Это определенно шедевр Д-класса! :-) Пойдем, поищем класс А :-)
@@DmitriNesterov qudoqq
Please don't say qudoqq my friend. It frightens the animals. @@RamilOmon
Nice setup i love it sounds crisp and clear
I buy same model today, 59rmb(about 8$ us dollar) on Taobao, thanks your video, so helpful!😅
I had this amp. I really recomend it.
Same
I have a qustion
If you connect it by Aux , Do you have to adjust input mode by every time turn it on?
The device automatically detected inputs and it's automatically select which has the signal.
Thank you
1@@user-zc5zg9nn2c
I own its little Brother zk-mt21 so good no hissing sound or the soind like its going to blow out
Ну я пока на том же уровне. 2.1 это всё, что я могу себе позволить. Но это не мешает мне развиваться! :)
For 10W such high output, wow
I just ordered the more poweful version of this cant wait til it gets here tomm
We need to try more speaker available in stores to choose the right one
Este amplificador é sensacional! Recomendo muito para quem gosta de musica e de pequenos projetos qualidade HIFI. Alimentação em 19.5v 4a. Toca muito. Compre e seja feliz.
Quanto é a potência desses alto-falantes
@@ezequiasdossantos3701 Os que eu utilizo em casa são (1 Tweeter Ultravox de 150rms; 1 Woofer Eros de 10 polegadas de 300rms e 1 sub Eastech de 250rms)... OBS: os falantes são mais potentes, mas desde que vc respeite a impedância... Vai tocar muito. Para meu uso está excelente.
@@rodrigoamorim5537 Sim, eu testei colocar a impedância abaixo de 4ohms pra testar o sistema de proteção, quando aumenta muito o volume, ele desliga para proteger o sistema, muito bom esse amplificador.
@@ezequiasdossantos3701 Eu tenho um apesar no manual diz 2 falantes de 50w cada e um sbwoofer de 100w porém eu uso caixas mais fortes que isso no talo a unica coisa que venho reclamar é dos vizinhos que vem bater na minha porta pedindo para abaixar o som kkkkkkkkkk
I have the model, ZK-MT21 but it looks exactly like this one, one thing I don't like is the Bluetooth for some reason skip like 2 seconds of the start of every song, no matter how many times reset, unpair and pair the unit, also if you turn the amp off the Bluetooth continues to be connected to my phone and I have to disconnect the power to be able to connect to my headphones, have you noticed any of this troubles or has been fixed on this model?
Yes it's the same with this one. They all use the same jieli Bluetooth/aux chip. It is just how A2DP Bluetooth works, it takes a while for the chip to start the output after periods of silence because when there is no signal on the Bluetooth audio it mutes the output to reduce the hiss, it takes a while for it to realise there is music playing and to unmute it.
Do you have the link for the subwoofer?
bom amplificador 👍
Заказал себе это творение, 670 рублей всего, точно такая же модель, жду недождусь. Хочу сделать небольшой саундбар. Спасибо за обзор!
Где заказал по такой цене?
Здравствуйте! Скажите пожалуйста где заказали такой усилитель по такой цене?
На озоне, была распродажа, открывалась на 5 часов. Была по 900 рублей, + бонусы списал. Сейчас уже дороже, от 1400.. Эх надо было 2 брать..
@@Denisaviches спасибо за ответ! Не подскажете в чем отличие этого усилителя от zk-mt21?
@@Denisavichesспасибо! Можно ссылку прислать сюда где заказывали?
Great.. 👍
I recomand 4 Ohm speakers and 24v power supply and you will get more watts RMS (inside it's TPA3116d2 one bridged for subwoofer and one for L&R channels)
Yes that's right.
I'm using 2ohm on subwoofer side without any heat problem
@@kartiksharmakartiksharma4399its still a bit unsafe , find two subwoofer of 2ohm connect both in series bring it to 4 ohms then no problems at all. It will run longer , i have build a system with one mono mini 200watt amplifier for sub and a 2.0 150+150 watt amplifier for 4 home theater stand speaker , thats mean one speaker is 75 watt 8ohms , i connect two in parallel i manage to get 150watt 4ohms for one channel in the amplifier and the other channel i connect the other 2, the only problem is i couldn't run the system at full potential because of my power supply, i was a bit hurry for the build and i didn't have enough money for the power supply so i bought a 24v 15a lighting power supply instead of 24v 20a which will give me around 480 watt that mean near the full potential of the whole system, but even with the 360 watt power the system is very loud, for the sub amplifier is too powerful for my subwoofer, my sub is 100watt so i only run the mono amplifier at half volume only , so the 360 watt is not a problem at all . i manage to run this combination for around 3 years , now im looking to extend it with another 2.0 amplifier + plus one mono amplifier and another 24v 20a power supply, to be honest ok let me send the item link in the comment you will see all things i bought online
@kartiksharmakartiksharma4399 so that amplifier requires any ohms
Is 8 ohm work great with this amp?
That's dope than mine xD
Sir tnry ko iconnect s aux ung magjc sing pero ndi sya gumana.gumamit ako ng adaptor to rca cable
Bus ya car ya Tector ya koi bhi bahan me chala sakte hain ishe
Tenho um fantástico , vale cada centavo .
Boa tarde tenho 4 caixas de 200w RMS e mais uma frontal total de 880W RMS 9700PMPO,, Impedância 6 ohms gostaria saber qual amplicador poderi ausar nestas caixas uma vez que a minha central queimou nao tenho mais obrigado.
I have the upgraded version with th2 cooling fan and it feels like it will burnout a pair of sony lbt soeakers and a 10" sub
When pushing a lot of power through it you will absolutely need a fan
Agreed, but the small one is impressive with the right power source, I'm running a power source with 24v @ 3amp and it makes the amp run solo good
Nice amplifier small but powerful how can order like that my friend 🥰
Hi, one problem I have with this board is that I see no BT-Wuzhi in bluetooth devices. Is my board bad, or is there a way to rest BT?
BT is off on my device when aux is connected
Bro what’s the name not the bass speaker?
Hi. Some say, with aux sound is mono. Did u encounter that?
I have been using it with aux mode and have not experienced this, however the connector is very fussy with what cable I use. Some cables do not give a good connection and only work at specific angles while others work perfectly.
Is there any video review of the Sinilink Xinyi amplifier?
There are some reviews on TH-cam for this, but maybe one day I'll make my own.
what does the frequency knob on the bass do? i mean the range is already between 20 to 200.
it adjusts the low pass filter for the subwoofer
Hey guy’s what’s the RMS I have a 8inch 100w rms 200w peak sub with 8ohms and some speaker with 50w Max. 24V 6A power supplie is that ok or do I have to use a lower power sub?
This can do 50w RMS @ 4ohms on the subwoofer, so only 25wrms on your 8ohm sub. Also 50wrms for left+right channels.
18- 20 ватт rms ,будет выдавать ваш сабвуфер при данном питании ,слишком много 8 Ом ,нужно 2 Ом
The lower the ohms are the more power they pull,which in all actuality gives you more from your amp
I wonder if it would sound ok through really nice speakers?
Being a cheap device it definitely won't be audiophile levels of quality, but for non professional stuff I think it would be fine. Beware though that the 3.5mm input seems to have issues with these devices.
I need help I have the same model and a 24v adapter and a 800w subwoofer . When I turn the volume up the Amp shuts down 😅
What impedance is the subwoofer? this amplifier is only designed for 4-8 ohms. Also I suggest using a small fan to keep the heatsink cool when using it at high power.
When you see 200 watts those speakers look like they came out out of a TV can flat screen TVs use those kind of speakers
Yes this amplifier is described as being able to output 200w, but I'm not driving it even close to that in this video because I do not have any speakers even remotely capable of it. It's more of an unboxing/building/simple test video.
This amp is very good but on online shop in my country some people sell it with fake Ic not the real Ic.Wuzhi zk tb21 using tpa3116 2.1 Ic,the fake ones use the others and it's not tpa3116 2.1, u can check it by opening the heatsink
I think the ZK-MT21 is the one with the fake chip, you can also tell by looking at the components next to the speaker terminals.
Is there a way to change source bewtween BT and AUX? everytime i connect my bt on the phone, the source changes to my phone and the aux to my pc isnt sounding anymore
No, there isn't any way which frustrated me a lot. From what I read online, the only way to fix it is to reflash the jieli MCU on the board with a firmware that prioritises AUX over bluetooth.
good for you, on my device if I plug in aux it turns off BT completely :/
Subwoofer name , power and online shopping link 🙂
Hello mate. Can I power a low watt Satellites with high watt Sub? Means Can you lower main Volume knob to minimum and Sub level knob to Maximum and still get good volume sound from Sub? Are those independent Volume levels or are closely linked to same level with master Volume?
1
6:23
the master volume controls both the sub and L+R channels together, it is after all the master volume. however the subwoofer output has a very high gain so I don't think you will have problems.
Donde lo puedo conseguir gracias y cuanto cuesta
i have two subwoofer like this 4inch but 8ohm, i create 4ohm parrarel to isobaric box 24v 5a and wow 😮
Hi! Is it possible to use a switching power supply with a power of 150 W 24 V 6 amps, but not 5 amps???
i've searched these matters before.. as long as you use 12-24v with at least 5a, example 12v 5a or 19v 5a, you can power it up but the speakers might be distorted on higher volume, if you're not using 24v.. but amps must be sure to match or higher.. do not get anything past 24v for this
@@TanJianWei92 It is recommended to use 24v 5A, but I have a 24v 6A power supply.
Нужен 25в , 8-10 ампер
damn..is that a real one?...not using the box case..but bass sound is perfect😱
Yes, the amplifier in the video is a genuine one. You can tell because the fakes have glossy PCB top covers and do not have small SMD components around the chokes.
I'm sorry i'm kinda dumb, if I just connect my old ass speakers(used to go in those old vinyl players) will they work?
Well speaker are speakers
Hello! Can I connect this amplifier to an audio mixer? Thank you!
You can with the 3.5mm input but it's not super good in terms of audio quality and if someone connects to it with bluetooth that will override the 3.5mm input
Super Preis Leistung Verhältnis
nice
I own a few and one by FOSI Audio. They are great for my use cases. The only think I dislike is that when I have aux connected the Bluetooth chip is still available for pairing, and it's not good to have your music stream interrupted in the best part.
I've though of hacking the device to add a switch -- not sure it's easy to do. I've even thought of cutting the antenna and using external Bluetooth receiver.
Thanks for the video.
Yes that's common with the jieli microcontrollers on them, they can be flashed with firmware that gives aux priority over Bluetooth so you can't connect to it when aux is connected. I so far have not found any way to do this though. There are some forum threads online that discuss it but don't have any success.
if only you could show us how to cut the bluetooth output to the preamp section.... or perhapas any idea to mix the signal from bluetooth with some signals from microphone preamp?
I have this exact amp I bought 2 years ago and have abused it daily and it still works perfectly. However at some point the Bluetooth range went from a dismal 10' range new to about 12"! I literally had to leave my phone on top of the amp to get clear reception (have another 100wx2 amp that does this too). I bought a cheap Bluetooth antenna from parts express($5) and cut the PCB antenna about 5mm in and soldered the tiny antenna wires to it and now my range is about 20 feet!
The antenna is a chassis mount and the antenna can unscrew from the mount. I drilled a hole to mount it in the top cover and when the antenna is attached lays almost flat with the cover. Antenna and cover are parallel to each other.
@@KGrasso89 thanks for the feedback as im planing to buy buy one to reuse some old stereo speakers.
@@voodooyam I've been very happy with the performance of the amps I own with exception to the Bluetooth range. I have no idea how the range can deteriorate like it did. I use one to power 2 old Polk speakers and an 8" subwoofer hooked to my TV. Another is used to push 4 8" ceiling mounted speakers(2 on each channel in parallel to make 4ohm load) in my enclosed porch.
i want u to use this in car with car stereo..
also, which subwoofer are you using?
Dayton TCP115-8
that is now a 200w speaker, but maximum 30W
the woofer is rated for 40w RMS I think
Sir 200 watt subwoofers plz
Hola cuanto cuesta?? $$ y un envio a El Salvador lo hacen?
Can I use 8 or 10 inch subwoofer with this device ...
You can as long as it is 4Ω or more but you'd probably want a bigger amplifier for something like that
I am interested in this amplifier. Can you tell Dose it has any start-up thumbing problem?
No there is a delay from it turning on and the speaker output being enabled
@@scellysspeakers thank you 😊. I have a problem with the Tpa3116d2 amplifier. It does that start-up thumbing.
@@Geniusinventor I personally have not experienced it, you can see in the video when I power it on with the speakers connected that it's silent until the Bluetooth sound plays.
@@scellysspeakers how is the sound quality on it? Does it have distortion on higher volumes?
@@Geniusinventor Sound quality is generally good, there is distortion at high volumes if you use a power supply less than 19v.
good
Matik nb to n may bluetooth?
Он расчитан на саб 100 ватт 2 Ом, 50 ватт 4 Ом х2,при питании 24 вольта 10 ампер
is it on normaly temprature if i put 19v ? for daily uses ? not hot / overheat??
For constant use I suggest you use a small fan on the heatsink to keep it cool, it will get hot if you use it at high power continuously.
@@scellysspeakers thanks my broo... i've been subscribe to you 👌
Which driver you using for base?
TCP115-8
what is the cost of that amplifier without speakers and woofer
£22 from amazon
If u turn sub chanel at full volume the distorsion is insane..
What power supply did you use? It will distort heavily at high volumes if you use anything under 24v with at least 4 amps of current capacity.
Spec wofer and satelite please?
Огонь
wow 700k views for a device like this on a channel with 2.7k subs. congrats! I exactly have a copy of this but it has completely no right channel using AUX/Line IN. another problem is electronic noise at higher gain/volume setting. Electronic noise disappears when you don't play anything or immediately after stopping audio. Do you have a problem like this?
I have had some issues with the 3.5mm input where I'd have to hold the connector a specific way to make it work, but it hasn't been an issue for me since I am using it almost exclusively with Bluetooth. As for the noises, I think that's just part of the experience with cheap Bluetooth devices. I haven't noticed it much because I don't use it at very high volumes.
@@scellysspeakers thanks! my dilemma if I should return mine. I also resorted to Bluetooth but it is not too reliable under Windows PC once I started touching settings, on top of the tiny latency. The small amp is indeed powerful but I did a lot of tweaks to enhance low bass/subwoofer channel while reducing the rest of frequencies. now I'm around 80% volume. I slightly made the noise less noticeable by using smaller weaker main speakers and reducing treble on device and equalizer. anyways you say it is normal so it won't make sense to return mine and buy a more powerful one like the Zk-HT21. I'll probably reuse this amp for a DIY bluetooth speaker in the future. thanks again, subbed!
Can it be connected to an equaliser? How would it be done?
You could use a software based equaliser for bluetooth (like wavelet) or you could pass an analogue signal through a physical equaliser into the aux input of the amplifier, but the aux input isn't great on this amplifier and the normal L and R channels have a high pass filter for some reason so you won't get much bass through them
Bro you should have used case woofer to test
I don't have one, that small woofer was all I had to test with.
Do I need a 100w subwoofer or can I use the 800w ?
You can use a 800w subwoofer, but this amplifier will not drive it at its full potential. Also, if you are going to use the amplifier at full power for a long time, make sure you keep the amplifier chip cool with a fan on the heatsink.
what’s the difference between this amplifier and the zk mt 21
MT21 uses a generic chip instead of TPA3116D2 and has fewer supporting components
Does it have short circuit protection on speaker output on this amp? In case of accidentally shorted the speaker output terminal?
It doesn't mention having this anywhere in its marketing material online so I'd assume it doesn't.
Can you share the subwoofer purchase link please
www.amazon.co.uk/TCP115-8-Treated-Paper-Cone-Woofer/dp/B07C7MY2D5 This is where I bought my one
do you think it has the power to drive a 10 inch sub?
Probably but it might not drive it with very much power
Question...
the bluetooth is always on even if the power/volume knob is off.
is there a way to add a switch or tie the bluetooth power to the knob??
For me turning the amplifier off also turns off bluetooth. Maybe you have a different model or a fake version?
@@scellysspeakers just plugging the amp to a power source turns the bluetooth on even if the volume knob and the indicator light is off.... i might have a fake one.
do you have the datasheet of the bluetooth ic? ive been looking for the it but no luck.
maybe i can mod the ic and add a physical switch.
@@scellysspeakersi mean u can try it on the amp.
unplug everything connected the amp... make sure to turn the amp off... plug to power... then scan the amp bluetooth or connect to it....
@@denspants7852 yes when i turn the power off from the volume dial it also turns off the bluetooth chip, when its connected to power but turns off there is no bluetooth signal broadcast, i don't have the datasheet because it is unfortunately proprietary
@@scellysspeakers mine does not turn off.
maybe its fake.😥😥😥
Maliit lng cia pero sulit nman tumunog
hello, what are the specs of this woofer? size? watts? ohms?
Dayton audio TCP115-8, 4" 40w RMS 8Ω
ขับซับดอก8นี้วได้ใหมคับ
I use a zk-tb21 circuit and a 19.5v 4.62a power supply, how many watts should the subwoofer use?
You'd expect probably around 70ish watts maximum power output from the subwoofer channel at that voltage.
@@scellysspeakers 70 watts but how much resistance do you think the subwoofer should have?
@@nguyenhoangduykhai4303 4 ohms ideally
@@scellysspeakers 3 ohms usable and can you tell me what effect the ohms spec has on the speaker
@@nguyenhoangduykhai4303 The lower the impedance (ohms), the more current the speaker will draw from the amplifier at a given RMS voltage. If you use a speaker below 4 ohms you are drawing more current from the amplifier than it is designed to and this can cause overheating of the amplifier. This is why in car audio subwoofers have very low impedances but other scenarios like home theatres have higher impedances, because in car audio systems the voltage used is lower (12v) so therefore a lower impedance is needed to get more power.
I just bought it and......wow tiny little cayenne pepper
top de mais
I got the same amp but mines sound distorted and chaotic
What power supply are you using?
Kaya poba nian120watt na speaker ko? 12v 6amp na power supply
can this amplifier be connected to the car?
Any amplifier can in theory be connected to a car, but this one is not designed for that purpose. It doesn't use the connectors and wire harnesses that are for cars. You create your own custom harness for your car to connect to it and power it from the car's battery, but you will have to make these adapters and harnesses yourself.
my ZK-TB21 subwoofer channel is gone.😔😔 I tried looking for burnt components like a resistor or capacitor but can't find it.😔😔 I bought an Aiyima amp with true dual tpa3251 chips but the AUX/Line in does not work and bass frequency range knob is terrible, it still sends human voice to the subwoofer.
Did you connect a very low impedance subwoofer to the amplifier or use it at full volume for a long time? These amplifiers are known to overheat if used at high power for a long time so I suggest using a small fan to keep the heatsink cool.
@@scellysspeakers slightly, it is a 3 ohm sub. My use will not overheat as only the subwoofer channel is driven hard and most bass songs don't have constant load. I think my fault of mine is using 26 volt power, I used it because it is the max recommended of the Chipstar cs8673e datasheet but it is likely that the board is designed to max at 24volts.😢 It was a slow death as the bass drops, it sounds distorted or electronic and weak until it complete disappeared in 30 seconds.😔 I want to fix it but still can't find the faulty component. I finally made the Line/AUX In in the Aiyima 2.1 amp TPA3116D2 to work. No more issues unlike the ZK-Wuzhi amps! It is more efficient or puts out more sound for the same power, maybe 20-40% more efficient. I was also able to find a PC Equalizer so that bass gets low like the Wuzhi amps. It feels I don't I need to upgrade the 20V, 4.5A power adapter I currently use. It is only $6.68 more expensive than Zk-tb21.
@@zodiacfml Still you ran the device out of spec, that would definitely be the reason. Even if it is only the subwoofer channel, there is an entire chip dedicated to it that will easily burn out if ran improperly. For 3 ohms I would've suggested never going above around 70% volume for the subwoofer channel, which is the point at which the AC current would match the peak of what you'd get at 4 ohms.
@@scellysspeakers true. it is hard to maintain a safe power output because I listen to youtuber bass music which has all sorts of bass frequencies and gain. I hope to fix the Zk-Tb21 someday though- I will check again once I'm done with other tasks. the subwoofer chip looks fine and the pin resistances seems similar to the other chip. thanks for the replies!🤩🤩
Please tell me that 200w(50w+50w+100w) is it peak power or RMS? If it's peak then what it's actual RMS watt?
The 200w most likely is just peak power, i'd expect continuous RMS power to be closer to 150ish watts (37w+37w+75w) since the amplifier is rated for maximum 24v and a bit over 5a.
There, these capacities are almost two times less than those declared as usual by marketing ...
Depending on what power supply and amperage, remove from this RMC 25% and you will get pure power without distortion of the real one in the measurement standard DIN What is real and not RMS for beautiful ciphers
He’s running at half power at 7.83 watts, it’s a scam device with fake lettering. In reality it’s a 20w amp. Having djd for 30 years with a commercial 150 watt amp it would tear those little speakers apart.
I am using this circut, it't good enough for me
why buy tb21 instead of mt 21? whats the difference?
TB21 uses genuine Texas Instruments TPA3116D2 amplifier chips and has more filtering circuitry, MT21 uses a Chinese chip and has less filtering.
Gamer amp
Que marca y modelo son las bocinas?
El woofer es de Dayton Audio, TCP115-8 y los parlantes más pequeños son de un televisor JVC, no tienen un número de modelo específico.
I was looking for this video just to make sure there is no "ze blutoos devais isa connectedu sucsheshfule"
Bai ata ki pawa jaba
Which capacitor add in this board volt and mfd details
For output filtering or input?
how much was it when you purchased it?
£25.99
Que bocina utilizaste para la subwoofer ? Necesito saver
Dayton Audio TCP115-8
Muchas gracias !!!!!!!!!!
Suported 4 or 8 ohm?
Thank you
It supports 4-8 ohm speaker drivers according to the datasheet for the amplifier chips used.
5:30 name of the song?
All songs are in the description
God maxx
Can i use 12v 10ampere, is it enough for power supply
You would want to use a 24v power supply of at least 5 amps current capacity to get the most out of it, if you use anything under 18v it will distort heavily at high volumes.
@@scellysspeakers but 10A.
@@emesacolney2756 That bit is fine but you won't get the full power out of it unless it's a 24v input, no matter how big the current capacity is you will still get distortion at high volumes if it's under 18v
@@scellysspeakers thanks, ...... I ordered on amazon and almost arrive, ZK TB21
@@emesacolney2756 I hope you enjoy it when it arrives!
Does your subwoofer clip at high vol?
Yes it bottoms out, it's only designed for around 40w RMS
Could you use a rechargeable battery?
if its of a sufficient voltage then sure
Link plss