Wow man, you've really put the work into this one! The awesome part is you are teaching us along the way. Looks like this little amp is going to be a beast!

All of this is over my head, but I really enjoy watching it.

Who else is on deck waiting for the unveiling?!?!

This dude is a mad scientist. I freaking love it. I have no idea what the hell you’re talking about but I’m zoned in for sure.

Is there a part 3 to this series. These mods are very interesting.

Holy shit Sam! No wonder it's taking a minute! That is wildly complicated! I'll bet it's 6 or 7k+ before it gets too hot. The heat sink is gon get some work. I'm stoked man thanks for the update

I'm into car audio but I have no idea about half the things you talk about but your passion and enthusiasm is infectious!

Loving this modding series.

@barevids I absolutely love these episodes!!! When do you think part 3 is coming out?!?

Hey man! Super excited to see Part 3 if you're still planning on getting it all figured out. How is the progress??

So, you are able to figure out these issues and the entire R&D team can't. This tells me that you definitely know your shiznizzle. I absolutely enjoy your channel and can't wait for the unveiling!!!! Many complex! Such thinks! Wow.

I remember back in the day when I cranked up internals on two 1000w dirty radio shack amps…. Good times

This is awesome. Thanks Sam. Looking forward to your results.

I waited long and hard for this and you didn't disappoint. You're a f*cking genius man!

Excellent work Sam! You are a genius! It was so easy to just sit back and watch the whole video on this one. Beautiful work!

I wouldn't worry about the litz wire bro, even 30k amps don't use it, I can't think of a single amp that does. That core is a quality one and will do the heavy lifting, you can tell because of the lack of wire it needed on the 8k. Love your work!

Awsome video . Love the explanation and the information. Thank you for taking the time to go through,start to finish. Its very interesting to see this amp upgraded internally. Can't wait to see how much power you manage to squeeze out of this little amp

Wow you're videos are improving exponentially. Well done Sam.

Very well done, so we were correct about the duty varying being the feedback sensing. I will be sending my audio pipe to Derick soon as well, we'll see how much my modded Audio Pipe APMI1500 .1 does now.

Nothing can ever stay stock with this man! Heck of a video.

I think you should make your own amps. I would definitely buy one. Great content. Thank you for your time and knowledge.

as a community we should probably try to get this man some proper wire for this project

Yo Sam! This is the best series I've seen and the one I've been waiting for you to do! I always wondered why you didn't make slight changes to some amplifiers to improve reliability or power since you know so much about how it all works. I didn't know it would be so complicated and so difficult to get it all right. Im really looking forward to your part 3! I would really really love it if you worked with a Korean build house to design and have built your own line of original design amplifiers. You should consider doing it man. Start your own brand that is reliable and efficient, and obviously puts out gobs of clean power. I'd buy one in a heartbeat, and you have hundreds of thousands of potential customers once Derek puts your line of amplifiers on the Dyno. It's a golden opportunity. Don't pass it up. It could change your life.

This is beautiful! Love it! Keep at it chap!

So technical, I can't completely follow some stuff but what I can follow is that this project is freaking awesome!! I can't wait to see you hairtricking with that little thing. Enjoying a lot Sam, thank you for the content!

O and I’m waiting for the day for DD Audio or Kicker to hire you bro! I personally think Kicker would be awesome but it has been cool to see your progression over the years.

When are you going to design your own amps? ;)

Wow can’t wait to see the results 💪🏼

Man oh man. You make such killer videos. Thanks for making content that fellow sound nerds can appreciate oh so much! :D

Good job. Very interesting. You're a smart young man, keep up the great work

This is going to drive me crazy till Dereck gets that amp. Nice work, Sam!! 💪👌

I'm really into audio electronics that much but not really knowledgeable about these kind of stuff, I always thought I could change the components on my amps to make more power and just by watching this, I feel like I had an electronics degree 🤣 cant wait to see to the final stage.

I've been following this for a good while now. I would love to see this thing in action when it's finished. I was wondering if you will finish this wild and interesting project. Love what you do.

HEY MAN I AM SUPPER EXITTED ABOUT THIS SERIES!!!!! Off to watch part one> I really enjoy watching repair. But mod for awesomeness. What a great idea. Love your work. Keep on keepin on Brother LOL

I wish more people would follow this feller!! SOOOOOO MUCHHHHHH knowledge here and the guy isn’t a dull stale shlep to watch

Love the vid. I used to repair amps, mostly re-soldering "jumpers" on the boards.

Best electronics vid I have seen so far... Kudos 👍🙂

I’m super excited!!! Don’t have any clue what you where talking about for the last half hour or so but I learned a little something 😂

Very good video! That amp is going to be bananas!

Awesome in all videos , unbelievable freak dyno amp test I think a tons of watt coming out with bigger fet can handle more amps. Great job about reverse engineering 👍

Mannn, I'm super stoked to see this lil guy pushing them DD monsters lol

Looking forward to this!

Looking forward to see what the little monster will make for power.😁👍

cant wait for part 3!

This is exactly what I want to do to my MTX7801 and my brand new Orion XTR 2500Dz, I have the equipment and electronic experience to do so BUT I don't have the experience of what other components (that you pointed out, and what waveforms to look for). This modification is really exciting to watch what problems that you come across and the remedy that you come up with. As Wiledy Coyote said "GENIUS SUPER GENIUS!)

Awesome content man!

Awesome video!

Cant wait to see how much power it makes.

Bro you are a god with this.

Hi Sam, nice job indeed; some comments about your mods: 1. 200v rail is the absolute maximum limit for irs2092. It may run pretty fine at idle but when you ask for some serious current trough the load overvoltage spikes will appear on your fets. The spikes WILL kill your irs2092 at 200V. Stay below 170...180v to be on the safe side. This can also explain why your irs2092 is killed sometimes at power on. 2. Dead time: from the waveforms you measured the fets are hard switching at idle and means the dead time is too short. You said it is set to minimum (DT pin) which is a very bad choice. Since I don't think you are too concerned with the Thd of this amp simply put it at maximum by changing the R around DT pin. This will remove some stress from the output fet that are clearly slower than the original ones. 3. Output inductor: good idea to increase the value but don't use the transformer core for it, it will never work. The transformer uses an high permeability core (2000..5000u) while the output inductor uses a low one (10..100u). Winding the output chocke on the transformer core will make it instantly saturate and you fets will be broken right away. Increase the turns on the original core or stack 2 identical cores if you need more inductance. A suitable core will be something like T130-2 or T157-2 or other distributed gap cores like Kool mu, sendust or MPP types. 4. Duty cycle change with rail voltage: this is something not intended by irs2092 and I think is a kind of protection to make it clip earlier at high rail voltage like you clearly explain. Check whether there is a resistor going from the positive rail to the feedback circuit around pin 2 or 4 of irs2092. If you find something like this simply remove it. The output idling voltage shall always be vrail/2 whatever vrail is. If this is noz the case means there is something addind DC offset to the feedback and has to be removed. 5. Litz wire: you don't need it at 25kHz and I don't think you can push the PWM frequency up too much with these beefy power supply fets you choose. Use many small wires in parallel to make it easier to wind Great job so far... I hope you the best when you will start asking some serious power from it.... Good luck

Hooked, can’t wait for the next few videos

This is going to be fun !

he can design his own brand of power amps in the future

Not a clue, however this is great viewing and very inspiring to learn about the mystifying world of electronics.

Good content my guy

That was awsome!!!

amazing work tks

Very nice I normally scrap old microwave and ups transformers for the wires to do projects.

I was looking at amplifier boards that you can buy that doesn't have a power supply part of the board. You can build a full bridge rectifier with a filter capacitor hook it up to a 120 VAC wall socket and get it to output around 170 VDC going to the rails it would be cool building your own home audio amplifier with high output. You also could use a toroidal step up transformer and have more voltage if 170 VDC isn't enough.

I am really excited to see how this turns out. Also could you go over the output inductor? Thank you for the great comtent!

love this!

LOL checking everyday for the last part or next part

Thanks for the info 😌

Dude. Your a freaking genius! Why aren't you working for these companies designing boards?! Soooo looking forward to part 3. I'm a big fan of A.P. My whole audio build is A.P. the D is an APCLE30001.D and the 4 channel is an APCLE2004. But honestly I was disappointed when I saw them copying the Brazilian amp.

exceptional

When is part 3 of this video coming out?? I have been waiting for the last 2 years lol😂

That thumbnail tho 🔥

Talking about going down the rabbit hole. I love your videos your enthusiasm keeps me hyped. Yes big D I love his stuff. I’ve made amplifiers so I understand what you’re doing. I just have to wonder if anyone else does? Keep up the cool work I definitely will keep watching. I never got an answer back do you know what the comb is Nguyen talking about Speakers?

amazing! dude your on track for being an amp designer. there is a guy GR Research on youtube, he upgrades the Xovers of premium 2 channel loudspeakers. you could be the car audio version of him

Very curious to see how the traces handle. Always makes me laugh to see a ~200 figure on those tiny transistor legs but it is a very short run. Either way, all the solder and everything else increases resistance and learning how that stacks up would be cool. I wish you were closer, we have a few high res (lol high res IR is .5-1MP) thermal cameras you could use. Maybe someone local who works with drones or industrial apps has one.

Definitely can't wait. Can I have this amp when you are done Sam. Thanks 😊 🙏.

I wonder what you’re IQ is , you got to be pretty dam smart to figure all this shit out with out formal training, can’t wait for part 3

So damn cool!!!!

This dude really knows his shit

U are amazing.

mad scientist!

I wish I was still working in the machine shops, I'd make Sam a Barevids heat sink for this board on the cnc mill.

Part 3, even if it smoked!

I got to watch part 3

This is an awesome video! it's even cooler when you learn how amplifiers work in class just to see that if you change the resistance in the voltage divider portion of the cct actually affects the output impedance to the stage. and just curious what channel will the other video be on?

I can't wait to see this in the van I hope it pulls hair tricks...

Waiting on part 3 please

You are OpAm-man!!!! 🥳🤩😂

I liked it

Always great videos! Can you show taramp users how to install a remote bass knob?

🔥🔥

Been waiting for a update on this, I thought u scrapped the idea. To me your speaking Mandarin lol but waiting for vid 3!!

Genius

More powah baby

I wish I could get my crossfire cfa 202 repaired but I don't know where to buy the rca and and the switches for the crossover and the bass boost. The amp power's up and runs but only 1 of the rca's work I looked at it and check soldering for cracks and found one but that didn't change anything so it's something internally behind the plastic.

please open up and discuss with us a Tarantula Extreme Power Full Bridge Series amplifier I would love to see you break it down!

Where is the Part 3? This was a big project, I hope you were able to see it through.

I THINK THAT ONE GONNA END UP IN A POOL OF MINERAL OIL TO KEEP IT COOL. :)

I know just enough to be scared to even attempt a minor repair and be confident that im not gonna start a fire....because I'd most likely burn shit down or totally destroy something that could've been made functional by someone not me.. wish i had your knowledge and skill in this area of electronics

How is is going with the Audiopipe brazilian clone amp you've been tuning up for testing in the van and sending to Derek for the dyno test? Please let us know if and when you get to publishing part 3. We're looking out for that. Thanks.

Hola amigo. Has probado el powerbass xa-4000d??? Que te parece ese amplificador??🤔

@barevids where's the part 3?

When is part 3?

@barevids, did did part 3 ever get made?

I’d buy a amp if you ever decide to manufacture them 🥲