Model 2500 - Marantz Receiver. One Of Most Powerful Ever! Vintage Stereo Repair Restoration Testing
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- Опубликовано: 24 фев 2020
- A Marantz 2500 stereo receiver repair and restoration video. Old electrolytic capacitors, troublesome diodes and heat stressed/troublesome transistors were replaced. This Marantz Model 2500 stereo receiver which was one of the most powerful audio products ever produced was then bench tested with an audio analyzer. This was a top to bottom repair and restoration that after 40+ years of service this vintage receiver needed. This Marantz 2500 was in pretty rough shape when I obtained it. Many different issues made this vintage stereo repair and restoration a challenge. This Marantz Model 2500 receiver now sounds great and will be reliable for decades to come.
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Развлечения
When people cry about paying $5,000 for one of these beautiful pieces of artwork , absolutely clueless to the hard work that goes into rebuilding a masterpiece like this . Thank you for all your time and effort into showing all the time and patience that it takes to rebuild something like this .
It's only the ones still covered in dust at 5k that get me :)
Magnificent restoration of these devices that built the legend of Marantz and brought a lot of pleasure to their owners, it would have been really a crime to end up in recycling, a big thank you from France for saving these beautiful electronics!
Thank you so much for your kind words and greetings from the USA. The vintage audio equipment is engineered and built so well. All this Marantz 2500 needed was a chance to survive. She will now be making making music for many more decades. Thank you again,
@@vintageaudioaddict It is "easier" for a good electronics engineer to restore the devices of this era, because with digital, surface components, utra integration of circuits ... it is almost impossible to repair without having to change an entire board, which means that these new electronics can not be saved parts failures (whole board) !!!
By the way, my 55" LG screen has just given up after 5 years and the motherboard is nowhere to be found, it's the whole TV that goes in the trash, while the screen works perfectly, it's a real scandal, I wouldn't buy the LG brand for anything anymore!
Fortunately there are still guardian angels like you of the memory of the electronics of the golden age of Hi-Fi, thank you very much.
I'm really amazed by the patience, and technical know-how here in your video. This really seems to be more of a rare skill nowadays.
I admire your passion for restoration. These videos will help to preserve these units. Thank you for your efforts.
Thank you very much!
im a composer who just lately told myself , hell i might get a cheap 2500 and restore it, after watching this video im definetly not going to even try...remotly....ever..... lol your a artist the same way i learn my craft with orchestra... thanx for saving me countless hours of swearing in my garage.
LOL.....I can't imagine your talent either. I never could even manage chopsticks on the piano.
Really, really enjoy your vids!!! All this stuff was so cool and excellent... being over 70 myself, almost all units you restore were known to me... started in audio when I was 10 and joined a local radio club. Didn’t get really serious until 1973 when I bought my first system. Watching you is like having a time machine... I can visit the past.
What fabulous work!
That 2500’s a true thing of beauty, as it was meant to stay. Thank you for posting.
And, an edit: my first stereo ever was Designed by Marantz, a Portable Superscope CRS-2200, that sounded just beautiful in 1979. I’m in the process of getting one I purchased on eBay fully restored, and I’m very excited.
Another absolute beast of a receiver here! I could not choose between this or that wonderful Pioneer you featured a week or so back. They don't and will never make amps like this again! perfect 70's engineered excellence!
There were so many different manufacturers back in the day that made amazing equipment. It's hard to pick out just one as the best.
I remember drooling over this when it was New way back when.
Fresh out of school as a radio and TV repair tech, I actually ordered the service manual for this receiver to ser how it was constructed.
Such a beast. Nice to see you have one.
Thanks a lot. I've had this 2500 sense 2013. I'm sure she will still be making music decades from now.
Always admired this Marantz receiver....at the time was out of my range. I am glad you were able to restore this beautiful piece of history back to its former glory...good job.
I have a Marantz Model 1040 that I bought, second hand, over 50 years ago (wow am I that old?). I still use it on a daily basis.
I have really enjoyed your video. It has breathed in me new love for Vintage receivers like never before. Thank you 😊👍.
You have amazing videos. I would not attempt to do this but I appreciate your confident approach, expertise, and just nature. While some may think all of this is only technology and skills I think it is more your love of retro vintage sound equipment that shines on.
Found this channel yesterday and have been on a mega marathon watch session. Great gear, great narration.
Awesome, thank you!
Excellent video, looking forward to seeing more, till then I'll watch the others 👍
Well done!! This amplifier looks like a brand new one.. Congrats!.. I begin to collect old and vintage sound equipments.
Excellent restoration work Sir!
Omg. This amp Was THE amp during my youth days. Sounded great with wharfedales.
These vintage Marantz receivers are beautiful. Great work! I like your style......
Thank you very much for your kind words. I appreciate it.
I'm not sure why I watched this. I liked the image on the thumbnail and decided to give it a try. I thought I would watch for a minute or so but ended up watching all of it. I don't know what you are talking about 90% of the time, but I really enjoyed listening to you as you engage with the process. I especially loved the part at the end when you described the finish on the cabinet and what you did about it. I really enjoyed this video. Thank you.
enjoyed this video very much! I'm cleaning the pots of my 2238 as I watch. When I was a kid back in the 70s the best I could come close to owning Marantz was taking a brochure or 3 home to drool over. Thanks to ebay and others I've since owned several. The 2500 and 2272, 2272 are on my bucket list. Thank you for the great information!
Your very welcome and thank you for the kind words. You sound like me. In the 70's when I was a teenager my pizza hut salary was not going to buy a Marantz 2500 or any other higher priced component. The $300 receiver was more what I could afford and that was after saving for a while.
I have a Marantz 2220B that my dad bought back in 1975. I love the tuning knob. Just keeps going.
Yes that turning knob was smooth lol
Very cool that you got your Dad's receiver. You'll probably have her the rest of your life.
@@vintageaudioaddict for sure. I bought a few on eBay over the years for parts. Most of them just needed the knobs cleaned to eliminate the crackling and static in the background. They produce some very nice sound.
Vintage gear just has a special look that I miss in today's audio components.
Thank you. Your english is intelligible even for a non native speaker, like I am.
I'd love to get my hands on one of these. Very handsome unit
you a great teacher of audio, and electronics old school expert teacher, young people watch and learn from this gentleman of knowledge.
Thank You
Such a beautiful unit, and the oscilloscope is simply mesmerizing. Thanks for the video!
Your welcome and thank you!
@@vintageaudioaddict what web site do you buy your capacitors and transistors
I have just discovered your channel recently. Thank you for putting this information out. I am enjoying all of your videos. I am hoping since I own a few vintage receivers and other equipment to do some of my own work. I find your videos extremely informative and well detailed great job!
You are so welcome! Thank you for watching.
Wow, these receivers had way more power than many of today's receivers.
This looks like it's way better quality too.
"Remember, this isn't trauma surgery" - best advice I've heard in a while!!
Thanks!
*GOOD AS NEW, AND VERY BEAUTIFUL...JOB WELL DONE...i'M READY TO BUY IT!!*
Wonderful 👍🏼 At the beginning I thought the timber cabinet took away from the looks, but after cleaned up it looks like it should look, very nice.
Thanks! This Marantz 2500 was/is a little beat up but that's part of this receiver's history. Just show's how tough the vintage audio equipment is. Thanks again.
Amazing restoration 👍
Thank you very much!
Beautiful craftsmanship
Truly an amazing component. I've only used the Marantz models 2252B and 1090 and found both to be excellent performers. Reserve power on both units was surprising. Very conservatively rated. Had the 1090 in 1979 for a few weeks as a "loaner" from Tech Hifi (12 W45th st, NYC) as my newly purchased Hitachi SR-804 was out of stock.
Such a beautiful piece of equipment. I had a lower end Marantz reciever of that era, wish I had never sold it for $30 in 1992!
Thank you. Marantz made so many great audio products back in the day.
I believe mine was the 2250b model.
Outstanding video! Thx for sharing.
By some unimaginable luck I found two of these. Had them both restored 100% by having them recapped which was around 125 lyrics, power filters, caps and new fan and soft start etc.
They sound absolutely fantastic paired with my Klipsch Bell's. Very musical.
It'll be with me till the end.
Very nice! Man, I wish I had your luck. Enjoy!
My older cousin Rick had one of these back in the day, with Infinity speakers. He was so cool.
Nice!
Fantastic, cheers from MONTEVIDEO, URUGUAY
I neglected to point out that the servicing and repair component of your video was nothing short of excellent!
The work shown in this video is fundamental service work - clean, swap out and tidy up. Nothing can be done to fix that wiring mess though, aside a total rewire job. AND complete removal of all those wire wrap connections. There are many good reasons why that rubbish isn't used now.
Wow, this thing is sick. This amount of work makes sense as a collector. I guess no customer would pay for such effort.
Thanks, good point about the cost to repair.
That would depend on the customer.
Customer here. Cost $1,000+ship to have mine completely recapped which was around 125 caps. A small zip lock bag filled with them. Not including the filters which had to be restuffed. Actually had two of these sold one. Paired with me Klipsch Bell's it's a wonderful sound. Love it.
love marantz cant go wrong great sound great video stay with marantz
Really perfect work!
Thanks a lot!
Very good stereo amplifier and good looking . Thanks .....
Beautiful Unit
I have a Mint Marantz 4400, also Vintage Kenwood 9600 Reciever, Kenwood LO7M Purist Monoblocks with associated LO7C preamp!
Along with a Mint McIntosh 2275 Integrated Tube Amp mated to B & W Nautilus 805D Speakers-Amazing Sweet Bliss!!!
There is nothing better than Vintage Audio Equipmemt!!!!
Great Presentation!!!
Omg , i remember seeing those NEW in the store sound rooms back in the day... i love it
Thanks, I was a teenager at that time. I was looking at the $300 receivers that my Pizza Hut wages could afford ,LOL
This is crazy, this is by far the coolest stereo I've ever seen, if it can even be called that
thanks and a backbreaker to move around.
That’s back in the day back in the 70s when they had the power wars were each manufacturer was trying to outdo the other. What a great piece of gear.
Thank you, It was a great time in audio history.
what a beast ! nice job as always
Thanks, appreciate that.
Excellent video!
Who on earth downvotes this labor of love? Excellent video sir.
You are a RUclips gem. They don't deserve you.
Thanks for the info and guiding us through your process.. Love the Receiver. Keep up the great work! 😁 Jer
Your welcome and thank you!
Awesome video. These are rare on YT. Keep it up!
Thank You. So many great Marantz units from back in the day, From the 60's into the early 80's.
@@vintageaudioaddict These from the 50s to the middle of the 70s were the best. Good building quality... made in the US
You are a master! I wish I was as talented. I enjoyed every minute.
Wow, thank you! Most of this stuff is not that difficult. It just takes some experience like almost everything in life does.
I very much appreciate the pace of your narration. With others, I feel like they are teasing me with too much verbage. Your helpful, reasonable, concise and specific. Great video on the invaluable restoration of this grail receiver. I have to wonder what a retoration of this calibre would be worth.
Gawd, what a beast!!! I thought my Marantz 2330 was badass (130 wpc). But this thing is built like a tank!!! The 1970's were the best for audio equipment.
Wow, what a reciever. They literally do not make analog equipment like this anymore. The cnc machined knows and dial are amazing. And the blue lights.
It's a work of art that would look nice at the Smithsonian Museum.
I really enjoyed this video.
Subscribed
Awesome, thank you!
You’re craft is a dying art. I knew a broadcast engineer with his own retail shop way back in the 70’s. He said If he had to do it all over again, he would chose being a lawyer in the entertainment industry representing artists. The way American industry mistreated Electrical engineers was the main reason.
My Dad loved his Marantz!
Great Equipment!
Awesome video. I love these old Receivers. Someday I'll get me one for both show and Go. Good luck with that China-made fan. The original was Rotron, Japan-made. Definitely much better quality.
I like marantz also. I have the realistic sta 2100 I bought in 1980. Never needed repair. Still plays great!.
You sir,...Are the MAN !!!!!
WOW, 2500 😍
you got the 2600 too?
you can open an audio museum with nothing but top stuff
No 2600 but I'd love to add one to the collection.
They made a 2600? What was the wattage on that unit....is the 2600 the top dog, or did the make something greater! !
@@trentdawg2832 it is 300wpc and it is top of the line Marantz receiver!
@@AudioElectronicsChicago damn.....300 per channel, so 600 total...that's alot.........at 8 ohm too, what would happen if you ran 4 ohm
Trent robey than it will be interesting 😃
Nice job 😃👍
Thank you! Cheers!
My dad had one of those when I was a kid! I always assumed it was cheap crap, not something actually decent.
My brother and I used to pretend the hi-fi was spaceship controls, that little visualiser screen was the radar.
Later You found out that You were actually playing with a Hi-FI monster!
@@manzanaresantonio
Everything that has Vu meters of shiny blue lights makes it hi-fi equipment?
@@Duijnkiller Not really, unless you play with the best receiver from that era. A high end receiver from that era will smoke your modern receriver easily.
@@manzanaresantonio BS. More likely something of that era creates smoke.
The 'visualiser' was a stupid idea to include in a 'HiFi'... pure gadget of very limited value.
Today, you can buy better made Amps and a proper DSO for less than the inflated US$5,000 some people think these are worth.
I'd love to find one of those.
The 2500 was my first reciever!! Loved it!! Used it to power a pair of Klipsch LaScalas!! Eventually went to seperates and picked up a Phase Linear 300 Series II amp I believe. Starting doing parties for money!!
That much power into those Klipsch? Walls would blow out! lol! But I bet the Marantz sounded better than the 300.
So... you sold one of the most sought after receivers just to downgrade your system?
That's a FLAME Linear... as they have always been known as.
Klipsch have no credibility now due to consistently over rating power handling and efficiency specifications.
@@JasonMontell2501 You know what makes for a 'Legend'?
Simple equation.... Bullshit + Time = Legend
@@BTW... The La Scalas were great for parties when I was young! The Phase Linear never gave me any trouble. I think I replace it with a Carver Cube. I have Bowers 802D3 now with Audio Research pre and Pass Labs mono blocs. Wish I still had the Marantz though!
Nice work and congrats ! I have a 2385 which is pretty similar but I’d love to score a 2500 for a good price . Take care and thanks for sharing.
Found one of these baby's in a garage sale. Sticker price was $100, gave him exactly $100. Changed both output relays, all switches, bulbs, and mcguires polish on the chrome. Flipped it for $3800. chaching ring a ding ding !
A friend had one and it rocks
Yes, it does. Thanks for watching.
I don’t know what to say. I’m so very impressed with your knowledge on this equipment! Would love to see a video on how they made these at the factory back in Japan. I still have a Pioneer SK something receiver from the mid seventies. 35 watts per channel. It will fire up but needs some switches. Lights still work. I always used Koss headphones in the day and sometimes it sounded like mono and not stereo. I would flick a front panel switch and sometimes it sounded right. But like you said in this video it’s 40 years plus old! I think you are a genius at this. But I’m wondering if you do this for a living. I’d really like to get my Pioneer repaired so I can listen to at night while in bed with headphones. I remember chasing am stations in California while I was in idaho. I remember a program called The King Biscuit Flour Hour ( album rock review and sometimes concerts). The receiver was a huge part of my life growing up. Do you do repair work for other people’s electronics or just your own. Do you keep all your electronics or sell them? You must have enough to fill a warehouse! Very impressed with your work and knowledge. Thank you for doing what you do.
Love this old radios
Thanks
great job restoring that beast i can remember seeing amps like that as a teenager in the 80ty's they always looked so cool thanks
Your welcome and thank you!
Thank you !
You're welcome!
master master master of transistors...
I've heard of people opening up old receivers to find a colony of roaches running out. Never know what you'lll find. If it's been laying up a while, I'd put it in a garbage bag with mothballs overnight to avoid "lively" surprises. Beautiful machine though. I knew a couple folks with the smaller models from the early seventies that just blew me away. A pair of 901's seemed to go hand in hand with a lot of these audiophiles. Thanks for a great video,.
I sometimes go on a board for collectors of old acoustic gramophones. Somebody dismantling one of those found a dead, mummified cockroach stuck halfway into the soundbox.
Woodworm's the real problem with those, if they get loose it could be goodbye house!
I saw one of these for $2,800 on Ebay. Who knew that would become so valuable? Had I known, I would have bought a dozen of them.
Yes, their value has really risen over the last few years.
Just..WOW!!!
Thank You!
@@vintageaudioaddict Your welcome. Thank you for all the hard work you put into this and educating those of us still climbing the electronics ladder.
At 14 years old in 1981, I saved up money to buy my first real nice receiver. It was the Marantz SR 1000. To this day, it was one of the best receivers I've ever owned. Not the most powerful, but nice sounding for sure.
Still enjoy my 42 year old Sansui 8080db receiver !
That thang is BAD ASS!
Thanks, She's a beast!
I’m still using the 7T preamp I bought in 1968 when I was in college, along with the 901s from Bose, their first year making speakers.
Very Cool!
And I thought getting an Onkyo amp from 1980 and running it was oldskool!
Hi
When you replace the drivers, how do you ensure the stability, meaning no oscillation, in the output and what about the temperature profile alignment with the bias transistor?
Wow! You're extremely knowledgeable about the inner workings of old audio equipment. I have a Sony STR-D2020 Receiver I packed back up in it's original box for 10 years because the display stopped working. Other than the display everything works fine. Watching your video inspires me to finally get it fixed. Anyway just curious, what would you have changed for all the work you did on yours?
Thanks for watching and for the kind words. I had 30-35 hours of time into this Marantz 2500. If I were doing this professionally which I'm not as I'm strictly a hobbyist, I'd say $1000 anyways.
Somebody's pride and joy back in the day and was very expensive at one time no doubt. Cassette went out but every format goes obsolete sooner or later.
Yup, big bucks back in the day. My pizza hut salary at the time wasn't supporting a Marantz 2500 purchase.
I bought a Marantz 2225 25 watt receiver way back in 1977. It weighed a fair amount! The only thing that would ever go wrong was that the volume control would have to be taken apart and cleaned or replaced every 5 years or so. That was a pain and the Achilles heel of this era of Marantz gear.
The smaller Marantz's were/are really nice. Thanks for commenting.
Super Love marantz
Thank you for watching!
Like 159 ! Parabéns pela restauração !
Grazie
Well done Chris. I really enjoy watching your work. This rig is a monster! Don't know what you have in it, but it's a $4-5k rig as it sets now.
Thanks a lot, George. I purchased this 2500 in 2013 for $600. The guy I got it from paid $50! We both felt like we got a heck of a deal. Vintage audio gear has gone up in value the past few years. Like they say "Buy What You Like" that way even if the value happens to go goes down over time you don't feel like you got stuck with it. Like everything I'm sure the values will peak at some point but for me it's about the equipment not the money.
Love the vid! Do you happen to know if there is a replacement for the Hitachi Oscillator tube?
Thats awesome, Ive got a 1250 pre main thru akai spx8000s, its nice
Thanks. You have some nice gear!
Nice video! Curious on your breakdown on replacement costs (you said a lot of components were pennies...) vs repair time. But sometimes it's better just to do a complete overhaul vs a spot repair. My Dad had a Marantz 2210 (maybe). H e had my BIL arrange to ship it from Japan when he was over in Asia during the Vietnam War. It was nice for all the years we had it in the house. When we emptied it a couple years ago, it didn't seem to work, and we tossed it. Didn't think there would be a market of aficionados who might have wanted it.
Cost me $1,000 to have mine completely recapped. About 125 caps.
best job
Thank You!
I did not realize that my old 2252B was worth so much!
I was just using it to run a subwoofer.
The old Marantz's do have some worth.
Also a key feature of the stereo receivers in the 60 and 70's was total harmonic distortion THD. A high wattage stereo with .01 to .03 THD you then crank up that system and it would be crystal clear.
Remember in 1970 when THD/IM figures were 1% on even the expensive amps?? By 1979 even the budget receivers had THD/IM of under 0.04%. Gotta love technology.
1977, what a year for what is now Classic Rock and for my girlfriends I had that year.
LOL
I still have a Marantz 4400 Quad receiver I bought new back in the early 1970's. don't use it anymore and it just sits there in it's original wood cabinet. Thing weighs a ton for sure. Use to love using the scope on it. Still turns on but probably needs caps replaced by now. Have a Dual turntable I bought with it also that hasn't been played in a long time also. always thought my Marantz sounded great back in the day.
Wow! A 4400 how nice. I'd love to have one in my collection. I've just never had an opportunity. The 4400 is a wonderful piece of audio history and is desired by vintage audio enthusiasts.
@@vintageaudioaddict If your ever in the area make me an offer as it hasn't been used in many years and it will eventually be gotten rid of. We are to old to move it around as it weighs a ton so I doubt I would ever try to ship it anywhere.