The 5 kilowatt Crown 

UPDATE: So I’m running a 3-part LIVE workshop that takes us on… A Time Travel Through Vintage Electronics. We’ll rewind the clock, dive into the tech of the times… (and study the very history of how things were broken and repaired has evolved) The workshop is coming soon, but if you're reading this then you're in luck (or not)... And there's still time for you to sign up using the link below: www.menditmark.com/mend-mark-workshop The workshop dates are mentioned in the link above too.

When you said you would have to do the knobs, and I saw the amount of on-top effort, my jaw dropped. Best electronics repair channel on YT.

The knobs were the icing on the cake. Great job!

My favorite electronic repair channel and so much more. Thank you Mark you are an inspirational and talented chap.

Mark - you are my hero in this age of throw away out of date technology. I have always enjoyed taking things apart to see how they work, and I am fascinated by your detective - like scientific approach to mending just about anything!

I want to see the bench power supply repair now 😅

The clear difference between someone who takes pride in their work, verses a cow boy. Weldone Mark! Love the attention to detail.

It is a true pleasure to watch a man who is modest and really knows what he’s doing.

Crown International was started by a broadcast engineer and ham radio operator by the name of Clarence Moore (W9LZX). Clarence got his start in short-wave broadcasting in the high mountains of Quito Ecuador at radio station HCJB. In the 1970's when Clarence was back in the U.S., I was fortunate enough to talk to him on the ham bands as a kid in my late teens. He was the inventor of the Cubical Quad antenna, and I just so happened to have one. Naturally, our conversation drifted to antennas, and he was delighted to hear that mine was a Quad. He was a vast book of knowledge, but at the time I had no idea that he was the guy who'd invented the antenna to combat coronal discharge in the rare atmosphere of HCJB's antenna site in the mountains of Pifo Ecuador. It wasn't until he had cleared off of the frequency that we were talking on, that another ham told me who he was. I was a lucky teenager to work that father of the Quad and later the owner of Crown International. RIP, Clarence. de W4ABC...

Hi Mark, I'm a mech engineer (and previous trade qualified boilermaker/welder) who is about to start a degree in Elec engineering. I've been mad keen on electronics and audio since I was a kid, and I'd like to say I'm blown away by your channel. Your dedication to repairing things most would deem unrepairable gives me some hope for the future. Your videos have also helped me a lot with repairs I have undertaken. Cheers from Australia.

Insane repair, your skills are amazing.

As a retired electronic technician of many years (music stores, etc), I thoroughly enjoy your videos. Like you, I had to employ a wide variety of skills to cope with the abuse that some equipment had to put up with from life on the road - the absolute worst was a power amp used in a rodeo p.a., not only was it beat up, it stank! BUT, I must say, your skills (and your shop) are the very best by far! I am very impressed and envious.

Already looking forward to a power supply fix video! :)

I don’t understand electronics at all Mark but I find your videos fascinating and entertaining. Your skills and attention to detail are a credit to you. Thank you.

I like that every stage of the repair comes with a little chortle!

It is an absolute pleasure to watch a man who really knows what he's doing, AND, has the right kit. Most repair channels on YT give me high blood pressure! Always entertaining too. Thanks Mark

You are such a cool person with a wealth ok knowledge that most people don't have these days and great sense of humor

And this is why I don't work on stuff other people have been inside trying to fix 😅 Spend more time fixing the other person's idiocy than the actual original problem.. Good work as always Mark 👌🏻

You are brave Mark, my heart sinks when taking on previously repaired gear. You can spend hours correcting their bodges.

I have been an electronics technician since 1986 I have gone through the transition between black and white TV, digital TV, Bluetooth audio, wireless audio and so on. Many of my technician colleagues say this channel is the best repair channel in the WORLD. maybe my hope as your follower from Indonesia is. I hope you add Indonesian subtitles 🤗 and hopefully this channel will progress and continue to be there for us

Mark, the happiest repairman in the web! 😄

Honestly, your greatest asset is your patience. ALso that nothing seems to get to you. THe fact that you can fabricate gives you a huge advantage on repairs.

The amount of care taken in fixing someone else's mess... Is remarkable and commendable. Thanks for a great video 👍

Well the saying goes 'You can't turn a Sows Ear into a Silk Purse' but certainly have with this one. Well done, a brilliant transformation 😊 👍

well done for taking this on...lives to shout another day.

I like how you just giggle at the different kinds of fasteners, instead of getting frustrated that someone put a bunch of random screws in

Mark, your repair was super-human...and THEN you fab'd up a pair of knobbers for it. You're a *beast* This is the best e-repairs channel on yootoob.

Great job very professional and time consuming locating the parts, l bet your customer was over the moon with that quality repair.

With all the repair channels on RU-vid these days, there are levels. This guy is absolute top-tier. My only complaint is I want more content Mark !! And every time I watch you getting that shock in the intro I laugh so hard...I always skip back so I can watch it again. It sums the guy up, and he doesn't try to hide it...everyone working on electronics will, at some point, get a belt !

Mark! Yes! I burned through the back catalog of videos, and have been impatiently waiting. So excited to see this post go up!

Watching Mark mending things make me smile. His repair videos are gems! Thank you Mark!❤😊

I am so impressed in what you able to do. It’s a shame you don’t have more subscribers so I will share what I watch with some of my friends who are also interested. Good work😊

Brave lad our Young Mark! Especially when someone has been in there before and bodged and given up!! Good man!

Madness crown rebadged a phonic amp, nice job as always mark

ONCE AGAIN MARK YOU HAVE NAILED IT ........YOUR AN ABSOLUTE ELECTRONICS GENIUS WELL DONE TO YOU SIR

Mark takes joy in his work

The rivets on the pots is a great idea 😎 Certainly one to file away in my brain somewhere.

Again, a LOT of fun ! Merci !

It needed putting straight. And you surely did. Thanks Mark for what I think is one of your best videos. Nothing better to start a leisurely weekend. Pure joy to watch. 😊

Perfect amplifier for a small flat.

Es gibt Bastler und Fachkräfte. Der Mann hat sein Handwerk gelernt. Eine fantastische Fachkraft mit viel Geduld und Können.

Boy, that one had seen some better days, rode hard and sent home limping. Excellent work mate.

Really impressive work! And the surprise fabrication at the end was such a cool bonus. Bravo.

Amazing what you do. Attention to detail that is Mend it Mark. Enjoy watching your work. 👍💪💪🇩🇰

This guy is a god. All that complicated work..and then HE MADE THE KNOBS! Now how often have I thought, "I'll be done as soon as I MAKE some knobs"!

My favorite repairs are ones where someone else bodged it up. Yes, much more time is spent and probably no profit but its satisfying.

I'm not even 5 minutes into this video and I'm so glad I found this channel.

For some reason I enjoy watching these videos.

46 minutes of bliss,great work Mark..excellent repair..well done Mark.

You are incredible! What a masterpiece! I was a certified electronics technician back in the 80s and 90s. Our shop wouldn't have touched this due to the previous "work" (aka "butchering") done on it. Your skillset and your tools are like a technical arsenal on steroids! I thoroughly enjoy watching you work. YOU GO GUY!

Your use of colloquial English makes your videos such a joy to view, the lovable West Midlands accent. Wonderful..

Once again easy to understand. and easy on the eye. Brilliant just want more please?

Excellent repair Mark! A 5kW amp WHOA! 🤪👍

Pure Zen watching and listening to you Mark I love to watch you work.

these always put me in a good mood

That was amazing!! Junk to treasure...

Brave. Masterful. Exemplary. 👏

👍Love your work Mark!

43:43 Experienced turners will say that an emulsion (a 50/50 mixture of water and oil) provides a better cooling and lubrication effect than pure oil. This is why we see white liquid in production - the emulsion of water and oil will be white when the mixture is churned in the pump.

Just amazed you got that mess working so well! Excellent. 👍

I’m impressed, especially making your own knobs and they look really good probably better than the originals.

Superb work , Mark!

I was so impressed with your electronics skills. Then you got the lathe out, crikey, I think I'm in love!

You're the Bob Ross of electronics repair. Fun to watch even if I don't know always how or why you do things. Instead of painting a pretty tree, you're shimming a pretty transistor.

Nice to see someone doing repairs properly, attention to detail is fab !

Well done, Sir. That was a proper job.

I'm not a fan of Crown amps and not a fan of the XLS series. But it broke my heart to see someone had abused this unit so badly. So happy to see it under your very capable hands! I remember playing with a JBL MPX 1200 (it was a rebadged QSC mx) and when I saw the dual layer, the massive transformers and the spaghetti of wires I decided I didn't want to touch it!

Spectacular work..

Looking forward to watching the bench PSU repair!! Good work on the amp repair though.

The Dr Hibbert of Audio Equipment Repair. God I love this channel.

Hi Mark. Thanks for the great video. I always love seeing you make things.

Awesome job Mark and very entertaining. 😃

Methodical and thorough, excellent to see all the steps! Thanks for sharing your repairs and awesome workshop.

An electronics expert with hardware skills. Man, I wish we were neighbors. I’ve got a whole pile of music synthesizers in need of somebody like you.

$100 Fee Just For The Custom Aluminum Knobs…. a Master of His Craft… with a Joy of Life 🎉 on another level. Cheers 🥂

Amazing! 99% of what you do goes over my head but it's enjoyable to watch someone who's on top of his game.

Mark your videos are fascinating, no offence but you need to put more out , best repair channel out there , great stuff can’t wait for the next 👍👍👍

Fantastic repair by a very skilled technician!

Amazing Repair !!! It's Mind Boggling the amount of Effort Involved to make this Amp. Work.

I just discovered your Cannel. I feel very good when i see you smile. Greetings from Germany

Nice. Love the way you mostly end up doing metalwork in these videos.

I hope it wasn't anything serious about the power supply. Your work is admirable! Cheers from Argentina!

This gentleman is so very thorough

I watched two of your repair jobs. This Crown amp and the board. You sir deserve 👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍👍's up. Well done, skills galore!

Always good to watch someone who knows what they are doing.

You truly are a knob expert ...in the nicest possible way.

What a repair job! I don’t have much of a clue about the technicalities of the repairs you do but I still find your videos entertaining and a must watch. Thanks for taking the time to film and edit these videos.

WOW! what a mess you had to deal with ,and you have some beautiful test gear and brilliant job on the knobs, Thanks for the Video

How can a person be so positive all the time. I guess he leaves all the cursing to me when I make mistakes. Now I understand.

Amazing Job done Mark ! I am watching your Work and it is so good to see the fun you have ! I love old stuff too and it is a pleasure to repair what is worth to be saved ! Rudi, from Germany...

Great video again and wow I wasn't expecting you to go to the trouble of machining those knobs. Just goes to show what dedication you have in doing a good job.

Crown amps are only good for a few things: Blowing up speakers, Setting speakers on fire, oscillating and blowing tweeters, unstable operation, and they make great boat anchors. I used to service many amplifiers for cinemas and live sound. Crowns were on my bench at a ratio of seven to one compared to ALL other brands combined. And despite the hype, they do NOT sound "cleaner" or "better" than most other brands. And to top it off, they are one of the most expensive amps made. The most reliable brand out there now? QSC, hands down. The ONLY repairs I have had to do to QSC were minor. Dirty gain controls, worn out cooling fans, and the very rare output stage failure.

Wow, great video, and happy chappy. I once had a Peavey CS1000 posted to me in a flimsy cardboard box. No packing material or effort made to ensure it arrived safely. It was completely smashed up, and it took 6 months to get a refund. Those machined aluminium knobs look incredible. You're definitely ahead of the rest

What a brilliant job, Mark. Thanks for sharing.

I reckon most people opening that up would see the rat’s nest and just put the lid straight back on again. But not our Mark! It doesn’t matter what your field of expertise - if you leave the world in a better state than you found it, good on you 😎😎

One of a kind Electronic channel. I love your channel Mark. Your knowledge and skills, your tools, gadgets and instruments marriage into one precise excellent repair. All the best ! Your channel is rapidly growing. Keep it up. Looking forward to your next repair videos.🙏👌❤

Excellent very entertaining repair job!

If only you lived near me! Love watching you wreak miracles on these broken treasures. In my case I admit to being electrically incompetent. I have a really sophisticated AM radio in my 1974 DS Citroen (you can have AM or AM) where the volume cuts in & out. I’m wanting to keep the radio - it’s true to the time of the car, but none of the audio shops hereabouts (Victoria, Australia) will even look at it… they are all in the ‘throw it away - we can sell you something much better.” Doubtless they would laugh at my stereo system Sonab speakers, Lenco turntable & B&O tuner/amplifier…

Asmr and successful repair puts my soul at peace!

Great to see another upload!