I Restored My MARANTZ 2250B! How Does It Sound?

[@tommysts1920]

The last tune "Walk In The Park" does sound better after your restoration. I don't know much about these kinds of electronics, but find it all fascinating and I am 70 years old. Great job kid!

[@jasondriver6579]

I work for marantz in the UK in the 80s. Top quality 👌

[@bobandes2016]

I recently discovered your channel. As a long-time Marantz 2220B owner (1976-ish) I am loving your videos. I plan on restoring the B once I retire in a few years. I also have my sister's 2270 to resolve a noise issue and my dad's old Pioneer SX1000TA with a noise issue. I already fixed wifey's Harmon Kardon 330C which had a dead right channel. Very rewarding. I look forward to watching all your vintage electronic videos. Not sure why more Marantz lovers have not subscriibed.

[@juliocubias9600]

Very informative video as usual, with the headphones or my main rig I can here the improvement clearly, the instruments separation , the sense of space, extended and detailed highs, a tad more robust bass and very upfront and present mids. Keep up the good work soldier !

[@jimcabezola3051]

You already own the equipment I'd like to see restored! No need to obtain more. I am enthralled with this Marantz restoration. I weep over the old '70s stuff I used, abused and turned to refuse... If only I'd restored what I had. Please enjoy this fantastic pastime!

[@johnr5847]

Sounds just a bit brighter with more separation. Nice work.

[@onzinlife]

That's what I was hearing as well! Brighter, mostly. Or 'cleaner'. Sounded warmer before though, and on my brighter sounding speakers, I actually preferred the 'before' sound tbh.

[@marcdavis8842]

Hell Yeah ! If you have an improvement in sound then that's a small bonues . Absolutely agreed it's all about keeping "longevity" of the said equipment.That unit may be over 40 years old as such ,but now you taken alot of time and effort to properly restore an Absolutely beautiful peace of equipment like you said it will come to life on and off for many years to come .😎👍

[@vcp93]

Wow, normally when I hear upgrades the obvious difference is in the highes and mids. However, here you're getting those enhancements AND the definition and punch of the bass is amazing. Great job. 👽👍

[@rlwings]

I thought the "highs" were clearer and more extended in the restored version. - Good job!

[@sdolsay]

Love the Marantz sound, I have a 2220b paired with a Pioneer PL-120 turntable and a set of HH Scott early 60's speakers...love the sound.

[@MichaelYates]

Excellent, well presented and restored.

[@longlist1421]

Job done well Michael, this and your channel is really helping me through the HiFi jungle

[@marcb8874]

thank you for this test, although I did not understand how the 1000Hz power test works, does it send a frequency?

[@Wil_Bloodworth]

Nice job and congrats on getting to the end. I'm sure you'll never get rid of it now that you've done so much work on it.

[@tuckermichael24]

What a great job you done on the reciever and the speakers you restored, just found your channel and enjoyed it very much, I also subscribed, thank you

[@michaelowens944]

It sounds brighter now I had one that was taken out of my storage unite while I was building a new house. Never could replace it. Best receiver I've ever owned FM reception was wonderful.

[@historymakesmesleep]

Good job Aidan. sounds great.

[@williamcobb6322]

Always great videos! I have the same passion for Marantz and Pioneer stereos from the 1970's. Growing up then, I couldn't afford any of them. Each one is a beauty and to restore them is a labor of love. Just purchased a decent Pioneer SX-580. Any videos on restoring this receiver is welcome. Your channel is awesome!

[@keving707]

Thanks and congrats! Sounded much better after restoration, less distortion and clearer sound.

[@markallen1782]

I fixed a Marantz PM 250 last year, and added a cheap Ebay speaker protection kit. It gives a 2 second switch on delay, and saves your speakers when something dies in the output stage. Just an idea to finish off your overhaul.

[@h0ll0wm9n]

Very nice work! I had that receiver, 3 decades ago ... man I wish I would've kept it. I like how you edit the videos ... keep 'em nice and short ... jump cut to the important stuff ... and trim out trivial stuff. Nice and succinct!! For your before/after microphone capture tests ... did you allow the components to break in? I actually preferred the "before" because it sounded less bright. ON THAT NOTE: In my own restorations, I run into this issue invariably ... especially when I replace with HQ or "boutique" caps like Panasonic FM series. Break them in for 20 hours ... and then listen. Big difference and only then you appreciate all the time/money you invested in the restore!

[@kenr.4526]

Yes, although the sound comparison is close, I hear the difference mostly in the "air" around the instruments. More life like and cleaner. Marantz always had a slightly warmer sound but this restoration seems to have tweeked it to "spot on". Subscribed ! BTW, suggest you refrain from picking up things like 3 receivers at a time like that. Herniated discs are something you don't want and it usually happens when you least expect it. you'll end up being afraid to pick up just 1 receiver. Don't ask me how I know !

[@Silent-Lucidity]

Listening to the jazz recording, bafore and after, I could hear the change in audio quality very well. In the before sample, the bottom end is a bit muddy and transience is not crisp. In the after recording, the lower frequency's have been tightened up and the highs are much more vibrant. As a result, transience is really nice. I think this difference is clearly proving that the response (time) of the new components are really showing their value.

[@BillyHurst]

Rick, I agree with you completely. You can really tell the difference on the jazz sample. Really spectacular to be honest. As you mentioned, the low end frequencies being tightened up and not so loose really make a huge difference.

[@thomaslytle5519]

Wouldn’t the lower volume level be because all those caps need to break in? It’s possible that after like 24+ hours you would notice a significant change for the better. I’m no pro but I’ve been told that’s a thing. Great video btw 👍

[@User_not_found_403]

great restoration work - I think after your upgrades the sound quality is noticeably better! I've got a 2245 I'd love to get restored too, but not comfortable doing it myself.

[@mikerhodes9198]

Great job. Excellent. The sound is more pure. Definitely better.

[@sudhirsumongkol8972]

Great job. I wish to have someone hold my hand doing it. Yesterday(4/17/2023) I brought my Marantz to a well known technician in Washington DC area. He will charge $600 flat fee plus flat rate $5.00 each part and a few months (yes, a few months) to finish it.

[@myturkishlife1777]

The after restoration is definitely sunnier 😁 Great job, had a 2226b for 35 years sold it because I'm an idiot .. miss it loads.. Great content 👍

[@vintagestereocollector3415]

I have the Marantz 4430 receiver and it’s amazing stereo,I love it!!!!

[@dinosaursr]

Please do a 2230. Although it’s pretty similar to that 2250. I think. Nice video and analysis. Keep up the good work.

[@kevinbrock7223]

Looks grand. Great job.

[@ifly65]

You may just have shown why vintage snobs dont like new parts installed if you lost some headroom in wattage. Im not sure about all the mic placement stuff but the 'after' does sound cleaner at the highs. Great job! Dave the LED guy is really cool thanks!

[@Managua-f1n]

I'm waiting for the recap of the amps. I'm doing my best with my Marantz 2270 .. Thanks for your video . ..

[@AHFixIt]

It's here! 2270 is very similar, little bit more difficult to work on though. kzbin.info/www/bejne/nH2UYYGbhdp5ndU

[@ronbatson1960]

I have a marantz 2285. Sounds really good i bought it back in 1976! Its really hard to find someone to work on them and trust them to do the right thing. I had a place near me that said they could fix any issues. He changed the lighting to led lights still had the same problem with the volume static on my albums i have. Took 3 months with not changing much a couple capacitors he said diodes to. Didn't really feel to good about him after he worked on it. Research where they can be trusted.

[@tf7274]

Ron...buy yourself Deoxit d5 and fader lube on Amazon. Open the case with the stereo unplugged and give a very light spray on the body of the tuning knobs. Rotate every knob/switch 40 times. Don't forget the headphone jacks and RCA. Let it dry an hour before trying it. I'm not a pro or tech but have got many dead stereos going thru this process. If there isn't any change than you have a visit to a doctor...not someone who can change a bulb.

[@nordland2235]

I have a 2275...bone stock....still works like new...minus a few burn out lights.

[@brucetungsten5714]

Wow - that really made a difference.

[@donaldchamble6897]

Dude you are always entertaining and I enjoy your posts. Please let us know what's coming next.

[@AHFixIt]

Right now it's Magnepan MG-1 vs MG-2, Ortofon 2M Blue review, and *potentially* an LS swap....

[@tonyciriello6872]

I still have my 2250B from the early 70s. It needs refurbishing badly. Where could I get done what you did?

[@alpe3911]

The restoration was absolutely necessary to extend the operational reliability and life of the reciver! I prefer the sound BEFORE the Restoration! The sound is clearer, and more detailed! and the separation is better! The sound after the restoraton, is warmer and more analog... So a matter of personal taste! sidenote: The Nichicon Gold Tune Filter capacitors need up to TWO YEARS (!!) until they are fully burnd-in Only then they unfold their full sound potential! Many do NOT know this!

[@pietromanno8916]

GOOD JOB!!! SOUNDS LIKE A BEAUTIFUL CLEAR DAY!!!!!!👍👍⚡⚡✨✨✨🎼🎵🎶🎵🎶🎵✌️

[@PossibleAudio]

Awesome work!

[@insolentstickleback3266]

That is just awesome to behold! What was the total cost in parts on this restore?

[@AHFixIt]

With the Sparkos Labs upgrade, I think it's around $250. Tough for me to calculate it though since I had most of the parts beforehand. Without the Sparkos Labs upgrade it would be about $150.

[@elazardc]

How much did you turn the volume pot before wave starting to cut?

[@hhvictor2462]

I took a broken Nikko 301S to get it repaired and restored. The techie repaired the unit and restored it but only replaced 13 small blue capacitors. He claimed that for this unit, nothing else needed to be replaced to make it purr.

[@Viacri5d]

Really well done - thanks

[@kenwoodjens1]

May you have the part # for the 2 main Caps you used please? Love your videos

[@DXingSlovenija]

Was wondering if all Marantz have quadradial output socket Or if not, what models have that?

[@NCislander]

KLH Model 17 speakers, Have you done anything to your KLH speakers? Capacitor replacements? Refoaming? Modifications? - Thanks

[@AHFixIt]

Just a recap years ago

[@NCislander]

Nice... Your YT videos inspired me to pickup a pair of the KLH Model 17's. On the lookout now for a Marantz unit. -Thank you for all you share out here.

[@NCislander]

Performed an easy Capictor replacement on the KLH Model 17 speakers, incredible difference! Thanks for all your videos out here. @@AHFixIt

[@austinlibby7025]

If I’m not mistaken this morass was built one super scope had control of manufacturing and if that’s the case there’s never been a good sounding more rounds until recent years the tubes were excellent and then the day nobody not even Macintosh can compete with the sound of Saul Marantz I was around in those days 12 1/2 year old kid

[@jonsays3762]

That looks just like my mr-220! … well, except for all the pretty, lol. Grats on the build!

[@TheDynamiteGuy]

I heard a big difference!

[@dondorfman3951]

Do you sell it now?

[@ripmcmanus773]

How about a Kenwood KR-9400? Had one way back when. Incredible tuner. Follow-up model KR-9600 had more power, but wasn't as clean. I believe the KR-9400 is an easier restore. I went through several more expensive but sonically no better alternatives when I decided to "upgrade," although I admit I didn't try out a Marantz 2325. Ended up with an Apt Holman pre-amp feeding a Yamaha M-80 before really hearing a difference...

[@alcameron6071]

Pretty hard to tell the before and after sound, at least for those of us who are watching this video with an iPhone. But, the fact that it was fully restored, and it will fire up for the next 40 years when you punch the power button makes a believer out of me. I saw your relamp video and that was pretty cool. Do you take in outside work for restoration? Just curious because I have a Kenwood KR-7070 that could probably stand to be re-capped and realigned. Even though it still does sounds excellent, considering I bought it in 1972 I’m sure there is stuff getting pretty tired in my receiver. Excellent video, I appreciate your hard work.

[@hermitsgrotto3812]

Nice job, very nice.

[@kdomster9141]

Much more life in the highs and bass is thighter , better presence and space on the restored unit.... I did use Sparkos discrete opamps and they sound the best

[@johnsmallberries3476]

nicely done!

[@docjeffry]

What position was the volume when clipping started? Great video! I grew up with a 4300.

[@test40323]

Great job! Base definitely has better definition, transient and attack. Less distortion in other passages. Question: how is the conditions of the wires, has the plastic coating dried up?

[@AHFixIt]

The wires inside the unit are perfect, still flexible and intact

[@rajendrabareto8065]

I blew up my 2215b. I tried something with speakers and that costed me.one channel is not working. After opening and checking I found 2 resistors are burnt. 733 and 715 and the 2 driver transistors are gone. They are not the originals. Seems like the previous owner fixed this channel before it was sold. Now I ordered the transistors-capacitors kit from ebay. Hopefully I can get it back.

[@viniciusdacunha8967]

Hi, I have a Marantz 2235b and I moving from a 220v country to the US. Could you explain how to switch the voltage? It seems simple but I don't want to damage the equipment. Thank you :)

[@DerekJason3000]

Tube stereo receivers from the late 50’s. Madison Mayfield etc.

[@mat.b.]

awesome! great video

[@20x20Ghost]

can you repair mine its the exact same model as yours my right channel works fine but the left has some issues its allot quieter on the left and seems to throw a saftey switch if I turn it up to much on the left channel when I turn the volume back down it comes back on .I have looked for damaged or leaking resistors and cannot find anything that looks suspicious mine is not in mint condition like yours it has allot of use and has some signs of rust from high humidity

[@scottifly]

It sounds much better. However, I think modifying the preamps fundamentally changes the design and therefore the sound. This makes it difficult to know what is causing the perceived improvement in audio quality.

[@ashookramroop9778]

May I ask as to where you are located. City and State?

[@cplin9669]

Great video,can you do a non lighted tuner pointer to a lighted led tuner pointer,my sansui amp has got no lighted pointer,hope to install one,thanks.

[@mikefc55]

hello, did not know of rightmark before your video, thanks. Line Level inputs on soundcards will have a high input impedance,( approx 30k) did you connect the 8ohm speaker outs directly without resistors to match impedance? If not won't the data show errors?

[@AHFixIt]

2250B's main speaker outs were connected directly to the sound card's line in. No resistors were used.

[@mat.b.]

So I recently got an amp recapped and in looking through my box of parts I got back, noticed he accidentally missed a few 1uf caps. Is it worth going back to have them installed for peace of mind, or stick with the 45 year old ones since nothing's broken? 2 small caps on 2 boards...

[@AHFixIt]

If they're easy to get to and you have the new parts, might as well. Especially if they're in an amp or power stage. If it's on a tuner stage and hard to get to, just leave it

[@mat.b.]

@@AHFixIt yeah, two 1uf's in the power stage, two in EQ...now that I'm looking at it I see he skipped some others...ahhh my god

[@elopes77]

I have one 2385 marantz monster for 20 years. I have serviced it once and i am planning a second service. It would be nice if you service one of this. Regards.

[@josuesantiago723]

The Marantz 2250b sounds better than the 2230 or 2230 sounds better than the 2250b. Please let me know.

[@frodobaggins7252]

To me it sounds like the sound has less in the high frequency after the upgrade. It sounds like a veil has been put on the treble. The lows sound better. Maybe it just needed to break in the new caps.

[@dondorfman3951]

What is your training and words of wisdom for a young sharp person that wants to pursue a similar career

[@davidfrost-ue1lx]

How much does normally cost?

[@danielramirezcruz.2209]

Good work l love it thanks for posting...

[@fishroombum3771]

cool project. how did you learn to work on these beauties? do you have any recommendations on how to get started with this hobby? I know a little.

[@AHFixIt]

Watch the repair videos on this channel! Really though, I try to make them easy to understand so people can learn something. I had a mentor that was generous enough to invest their time in me.

[@fishroombum3771]

@@AHFixIt Thanks, appreciate your response. I'm subscribing! :)

[@emorris272]

Maybe the replacing of parts changed the bias?

[@Gabrielishere]

The imaging, soundstage, and clarity improved exponentially, because of the Sparkos Labs thingamajig... just kidding... sounded great before and sounded great after... in my earbuds, and on my laptop speakers. Peace of mind that a future house fire has probably been mitigated is always the real value, for me, whenever I refurbish. 🤣

[@3ddruckerverleih338]

Cooles Teil!

[@danmartinez5502]

Great job my 2250b went to the shop yesterday. BTW the 2250b had only one year 1976. They are rare and when you can find one it gets pricy

[@todddenio3200]

The 2250B was rated at 50 watts but it is likely that it was actually putting out anywhere from 65 watts to about 70 to 75 watts.

[@denniskapczynski8213]

If you want to do another Marantz, I have a 2325 that i would like restored.

[@mxbishop]

With vintage Marantz, Pioneer, and Sansui stereo receivers commanding such lofty prices on reseller web sites, one would think that an audio manufacturer would take notice. Someone needs to build limited runs of the more famous models. Who would not want to buy a brand spanking new Marantz 2285B, Pioneer SX-1250, or Sansui G9000? These, of course, would be replicas, but hopefully matching the originals as closely as possible. It would be a cool thing to see and hear. And I would buy one of each. Very nice video, by the way. I have a cherry 45 year-old Marantz 2265B, and it rocks the house.

[@RobbofSOCAL]

After replacing all of the components, it is very important to adjust the DC Bias, then the DC offset Voltages. This applies to ALL Receivers of ANY Brands.

[@williamjverhagen]

Are you selling this unit?

[@r.weaver3769]

I have a 2215b, and 2270

[@cpgixxer]

I want to see you tackle a 4400

[@johnnyd63]

Jeez...Revisit this page in the year 2081. That's when a 4400 restoration should be complete.

[@cpgixxer]

@@johnnyd63 about a 3 week job 👍

[@leonidbreshnew401]

Hi AH, very good job, with time Your appetite will rise, then You'll get external high quality sound card and make even more measurements maybe. I'm insisting on that, because that's only objective truth to be proved.

[@RockNRod.]

Great job young man, very impressive work. I have a dumb question, when replacing that much stuff when is it no longer a marantz?

[@tylerjezowski5633]

Can you restore an sx535 for me

[@AHFixIt]

Boy, have I got a video in the queue for you!

[@HappyJ]

Highs sound crisper after restoration, to me. Bass, a hair less bold.

[@rajoconnor]

More dynamic after.

[@sighoa4489]

Hello There, where can I get to talk to you about a receiver? do you have a P?M to contact you?

[@AHFixIt]

[e-mail]

[@berylhemmings7003]

More head room after less distaution

[@JoseDelamota-s4y]

Duu can you get better music for test?

[@JohnLee-mq4hk]

Pre repair it sounded like a dead one, post resto now it sounds like a live one.

[@matthiasmartin1975]

Haha, recording the result of playing music through crummy loudspeakers that are stuffed in the corners and touching the walls via a single microphone - hilarious! Troll level 200000.

[@antoniojoseandreomartinez9710]

🙋🫂👍

[@26Jorgeb]

Hi AH.I'm just hoping,but,will you accept a restoration job?If so,please send me a personal message.Thanks for your time.

[@neil301]

sorry i dont think much of this amp looks like its done with cheep components but your channel is great its ashame you cant see that amp is crap

[@alphabeets]

Sell it to me!