a raw diy (do-it-yourself) learning of (a) audio circuit design and implementation (b) modular board integration (c) MCU Firmware Programming (d) simple Project Management and (e) Teamwork + other amplifier
Salamat po sa nice comment, tiyaga lang na matapos nga DIY Amplifier at para naman masaya sa pakikinig ng sound, pang LISTENING PLEASURE. Kayo din po, enjoy your favourite Music.
Hii bro I have the same microcontroller STC8G1K08A can you please tell me how I can program this microcontroller with ftdi module ...and which application I need to use to program it .... And can you tell me how many individuals pwm output does this microcontroller have ... please bro help mee
@@RobStark-fw6ig You need to use the STC ISP software on Windows (not support Linux) select the STC ISP software that support your MCU., just be patience to fnd first the English version not the Chinese version.
Hi, that should be from the heart - honest comment....... I mean, this video is when the EQ (equalizer) is "Rock" and Turbo Bass is "On", as compared when it is Pop, Jazz, classic or normal, cheers!
RU-vid made a big mistake, the All I wanna Do Is To Make Love To You is not from "Halestorm" in the video, its from RIANNA RUSU. What a mesh done by RU-vid, I think you need to report this to RU-vid in fairness to the artist and content creator.
Sharp eye thanks for informing, I will inform RU-vid about this. Apologies, this is unintentional and unfortunate, now I know how bad is RU-vid algorithm.
Yes, its my collection of Chinese wine from different provinces, whenever I go for "DIY Travel" will get a wine from that place. Its ONKYO, TX-SR508. apologies for the late reply - its been hard to access youtube from my jobsite in China.
I am glad you find fm300a suit your audio needs - that should be the re-make version if its from BRZHifi, I heard it several times at their shop in HQB in Shenzhen China. the case is "macho" and heavy. The BRZHifi X30Y in my video is a part of Class-D adventure - demo on how a software can revive the TPA3255 class-D when it reach its killing point, and also I like casing with HMI on the front panel. Enjoy the music, cheers!
@@dr100wconceptpoweramplifier yes I heard the gears at the show that asking for 10-100x the price, and most of them don't sound good. I was like how can they sell these at that price tag? Pure white trash in my opinion....
@@MasterofPlay7 at their shop in Saige Building in Shenzhen, China, I got curious about its rose gold color, I tried and play a little bit with their own BRZHifi Speakers, I cannot judge how it souns using my own music connected via add-on BT modules, its a noisy environment. I can only say, its macho - barako - gigolo and color is eye capturing, but frankly, I dont want to own it, I prefer to DIY my own Amplifier in the way that I want. I asked the price, its not bad..... but maybe in your place, it will be expensive.
I see... but thanks for the personal comment. Sofia Laiti voice describe as "Her voice is smoky and deep there " sofialaiti.com/home, not all audiophile music is good hearing to someone (24 bit 96 KHz source on the CD with MQA player), I think I screwed the setting in the dr100w class-D to "Classics" instead of "Jazz", lol!
After many comparisons I also ended up with a tda chip (7498e). if you don't listen carefully you stuck with the tpa's because they sound great. but the tda's sound is true. gratulation for your finished project 👍
Thank you for the nice comment, yeah finally finished this dr100w concept project -- hardware part but I still trying to get back on the core firmware. I partially started the TPA3251 in its case and trying to do something on the "killing point" via software -- watch out for that video.
Thanks for asking, the short answer is ...... not really! I am sharing the adventure of this chipset specific to the modular board (chinese made board), oppurtunities, improvements , the good stuff and the thigns I personally I don't like --- its the "killing point". This link is the updated test and observations/conclusion : ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-qtGut4TUusg.htmlsi=FmrlH9wnxv9zYD2Z
Thank you for the nice comment - Salamat po! Almost everyone can do DIY Power Amplifier, Tone Control, sound processing and other audio stuff, with all the tools available at home now. I am still thinking something to share in this channel.
For me TDA7449L is a chip with analog functions. So I am concern on how to lay its pcb layout as part of embedded system in order to avoid noise/buzzing sound
you are right! a hybrid analog + I2C control signal is a bit difficult to do the PCB with respect to GND system. When you access the TDA7449 via I2C, you will hear the bit stream on the speaker. But with rules on PCB design of single point GND for analog and multi-point GND on digital - isolation component like inductor or low ohmic value resistor, you can optimized the co-existence of hybrid system, its more a trial and error GND, cut or connect PCB track during the test to optimized the noise. Sharing of V+ also for the MCU and TDA7449 matters - follow rules on Hardware and PCB design can help, for my project the Tone Control board is separate from the MCU and thus the I2C cable plays a lot -- twist it to immume to noise. Cheers!
Thanks for watching, the summary of the test for TPA3251 was in this video ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-qtGut4TUusg.htmlsi=bl9bnWpheSU8gGKS jump to 18:35 mins, with the condition of 36Vdc 360W, 1 KHz, 4 Ohms resistive load @10% distortion both Channel driven is 144W/channel average power (and also at 1% distortion) - that was taken after soak test of 60 minutes, I used the FTC Clause 15 part 432 (14:04 mins of that video) . I also used 8 Ohms resistive, though the datasheet did not mention it. In this episode of the TPA3251 ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-qtGut4TUusg.htmlsi=VcovUuCuMBdSCcIq I shown on how I deep dive into the corect power supply of +36V 360W the highest power supply I can find in the live market, and the right 4 ohms resistive load (1000W) - with those on my bench, I can perform and do better on the electrical performance test, artifacts, distortion, soak test with real music - a dynamic signal with changing anmplitude and frequencies....and more! , watch the whole 22 mins video, its a bit lenghty compressed from a day test. Cheers!
Greetings from Zagreb, Croatia. Europe. We are coming to Shenzhen in two weeks with a friend who would like to check out the top audio equipment. Please write me the address of the center where your video was recorded. Thanks in advance.
thank you for your nice comment and suggestions. I do not make any modification just test as is, as per design of the board coming out from the China market. Yes! Using an exhaust fan can help on the temperature issue when use the TP325x series at high power. The exhaust fan may induce a kind of "fan noise" specially at low volume, or when using at bed time, a temperature sensor that control the fan may help on this.
I also had some tda's before. they sound warmer but with some inductor noise behind. tpa's run quite hot. my 3116 now too. the cheap changx cap there bulged after 2 weeks so I think the nichicon fine gold was a good replacement there. The sound changed too with the cap.
thanks for the info. If the board is coming out from the China market normally would not run into a standard manufacturing test or Reliability, its nice you get it work with the right caps. congratulations!
Nicely done friend. The 3255 is an impressive amplifier chip, the entire series is by far my favorite. Loved the end where you point out everything on your desk! Don't forget, God loves the curious mind!
like those use by Loxjie, SMSL, Fx audio and ither. I think there are dev board MERUS on the bench which maybe the next topic. if its interesting than revival of dny40W class AB.. class D not many can do DIY but class AB everyone can
i switched to infineon class D amplifiers for my design. it seems that ti lagged in development regarding audio. they kept on sucking out good companies to consolidate a product line. i used Analog devices DSP and infineon's class d ic including it's BTL class D.
Why do you want it? Do you want it for yourself? Then: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-QcxWxNO8idc.html Do you want it to impress others? I had a semi-high-end system for a while. My relatives came over for dinner, and I had some beautiful music playing on my system. They told me to turn it off because it annoyed them. The reality is, no one cares about your music system, or your watch, or anything. They're worried about themselves. And you may even find that if they *are* impressed by your expensive stuff, that you can become embarrassed by the attention. Or worse, they'll mock you for spending so much money when they can't tell the difference. It takes practice and experience to distinguish between high-end anything and something ordinary. I only experienced the difference high-end audio makes one time. I compared a CD and a vinyl record of the same piece on my system, switching back and forth, listening again and again, and for the first time I could tell that the vinyl was better. Most of the time, under most circumstances, it doesn't make any difference. Do experience it now while you're young and your hearing is still good, but don't obsess over it. Spending thousands of dollars chasing that last 5% isn't worth it.
Nice info, Salamat po Sir. Ma try minsan kapag may time na mag DIY sa speaker, as of now lacking of wood working know how ako and tools. May 2 akong kaibigan na may Markaudio full range DIY made ng baffle, its a display of the power of fingertips and the love of DIY. cheers!
Thanks for asking. Halimbawa HiFi critical listening ang gusto, di lang nakukuha sa class A power amplifier kundi sa CD Player like MQA at saka high performance speakers. In general Class AB would be good for general listening o listening pleasure. For high power with high efficiency go for class D - like TPA3255 which is powerful enough for home use, yet a PurePath ultra HD audio, go for it, pero need mo pa din maganda na sapeaker at saka music source - hindi iyong nga MP3 files kung Hifi music lover ka.
Thta's nice -- the best in Audio adventure is to enjoy of what you have with the type of music you like. I heard of icepower and I had a pair of module before based on the IRS2090s but I gave way to our derivative design of TDA8920BTH / TDA8950TH which is my all time favourite not because it is the best but its what "we have" in our DR100W concept class D project, its the core topic in this channel.
