Epic Sansui G-9000DB Monster Receiver Repair & Overhaul
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- čas přidán 19. 05. 2018
- This is a short piece about a recent repair and overhaul I did on an incredible Sansui G-9000DB Pure Power Stereo Receiver.
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Sansui's of this magnitude generate their own Gravity field, Don't think for a second that I haven't gotten down on my knees and thanked god for the Sansui corporation and all their works. ( at least till around '88) Life is so much better when you have one of those monsters stacked up in the living room.
Amazning audio engineers back in the day.
Great job restoring this magnificent piece. Sansui truly made some awesome receivers and they have certainly stood up over time. The sound is amazing and the power is just massive. I have a G7700 and it still works fine.
Thank you very much!
I have a Sansui G-9000DB. I bought it in Korea in 1979 along with speakers of the same brand. Never been repaired and still looks like brand new.
You are blessed. I am totally envious.
I had the G22000 back in 1978 hooked up to a pair of Magnaplaner MGIIa's - totally awesome & sublime... truly the best most musically accurate receivers of their day.
Sansui at no#1 with this receiver pure power what a name for a monster like this !
I’m a bit late to the party here but I have a “garage find” Sansui G-9000. You mentioned that the two pieces in front of the dual capacitors had the right side with a lid and the left side without. Mine has the same configuration. BTW, I got the receiver, a pair of Cerwin-Vega hed U-351 speakers and a pair of Cerwin-Vega 300SE speakers for US $250.00!!
I bought my G9000 DB at the Pony LTD in Fussa City Tokyo Japan in 1978 brand new for $450.00 Left channel has a short in the balance knob but its still a audiophile piece of beauty I love this receiver even in 2020 💪🏿👌🏾😎✅😃🎶🎶🎶
I have a G-7000 with a pair of Altec 804-8G. Wonderful sound.
A very good friend of mine has a G8000and I can't imagine anything any louder or that could sound any better!!!!!!!!!!
I had the G22000, yes 2200. It was 220 RMS into 8 ohm. Same face plate but the body was two parts, amp in back and front was the rest. Wanted to give it to the kids but none wanted it!! Had it for 20 years, sold it a few years ago after taking forever to get it fixed. They have so many parts. I think the 22000 was never imported into the US but Japan only. They did make a 33000 which I think was the highest power receiver ever made. Same body as the 2200 but with 8 TP3O outputs rather then the 6 that mine had.
Starting to miss that unit now,
Excellent video.. you are obviously highly proficient with your work. I have the Sansui G-8000 from 1979, and it looks identical to this one, with a few less features. It developed the volume control, static, transistor and output failure problem gradually over time, but still powers up. It is just too beautiful and well crafted to part with, and I'm sure it needs the repair and overhaul like you did here.. At least now I am optimistic that there is still hope for this wonderful piece of equipment.. Thank you, from Florida.
Sansui's 1,000 line is the best and most crystal clear sound of all non-tube transistorized receivers.
G 8000 Love it !! Sansui Rules sound is Incredible
that is worth the effort you put in to keep it running. nice receiver
Wish you lived in the US !! But Godbless 🇦🇺 been praying for all of you , and i have kepted the redcross relief for 🇦🇺 on my channel, You all have been threw it ! 🇺🇸 has your alls back believe that !!!
I admire your detailed work. So thankful for caring people like you. Keep it up.
I recalled my bro owning a Pioneer sx1980. Unfortunately no one could do the repairs when it went sour back home in my country mid 80’s. I recalled as a young man how clean the sound was and lawd it was heavy.
Good stuff! Bless
Great video Mike
I have a Sansui G-901DB, which I believe is the European version of the G-9000DB. Dynamite receiver! Except for replacing two burned out dial lamps, it is all original. It’s a beast with massive power to spare. It’s connected to a pair of JBL Jubal L65 speakers. Awesome!
As big and beautiful as the G-9000 clearly is! I own one. There's two bigger by Sansui. Their G-22000 and the G-33000!! Each unit are of a two piece configuration!
The G9700 is bigger also..
@@markdavis3629 No, it is not. It is from a later series and it is much lighter.
must have been a very happy owner .
The first that I saw that " monster was year 1981 when I was in Jubail ksa The weight is 50 kls with 350 watts per channel It is my " dream " up to now I just got " short of cash That's why.i was not able to bring it home when they test it with 17 inch diameter speaker The whole store was shaken because of the " base" Really up to now it's still my dream Although I've got my marantz pioneer And some " local" assembly amp but still nothing beat that monster!
Beautiful. I wish I had one.
You and me both!
I found one of these in the trash 2 days ago and brought it home not knowing what it really was. So far it turns on but haven't hooked up any speakers yet. I am going to restore it and learn about it
Wow, quite a find! Lots of amazing equipment like this ends up in the trash because technicians lack the ability to repair it and owners don't want to spend the money to have it properly repaired. Tragic really, because most faults with these and other vintage amplifiers and receivers are very fixable.
@@LiquidAudio Speaker hookup part lost its springy feel but managed to hook up at least the right side A and it sounded amazing even for cheap 2000s Sharp speakers. Also, upon closer inspection its a G5500. The woodgrain case is beat up at the corners and the aluminum dials and face have light scruffs.
Its no museum piece but I'll try to make it look decent. I wanna swap out the bulbs for white LEDs at least but don't know what to do about the woodgrain. I originally thought of making my own case with my 3D Printer, sort of bringing it to the 2020s without making it look bad
It's a beauty! I just found a Sansui G-5500 at my local goodwill and they had it priced at 7.98...what a grab!!!
What an absolute beauty! I love it.
Fantastic machine by all means :
Awesome àss piece of equipment
Wish I still had mine the best receiver ever
Wow amazing tuner amp I hope the makers of current day "Audiophile" equipment take a look inside this beauty
Great video. Thanks.
What a beauty
Bons tempos! (Good times)
I see one of these currently for auction at the shopgoodwill auction site. They describe as tested all working and very nice cosmetic condition. The auction ends on the 15th but bids now are already $12 dollars plus shipping of $21 dollars.
Wow, that's amazing pricing so far, it has to skyrocket one would think..!
I have a G5500 which is a baby compared to this. The biggest model from this lineup was the G33000. Rare as hell and certainly not cheap
Agreed, the 33000 is indeed ridiculous and might be the ultimate monster receiver. My customer who owns this G-9000 is actually looking for one!
Those drivers boards made me cry . I've been looking for a 2sk97 like a year and a half...
Hi and yes I feel your pain! You will likely only ever find fake 2SK97, best to move on with using two separate single FETs or a dual LSK389 or something else that matches the specs of the Sony part. Singles will need to be hand matched and graded the same of course, so you need to buy more than you need and have a way to characterise them. Duals like the LKS389 may just work as is and will be nicely matched out of the box. Try these guys, they may have something - www.littlediode.com/components/2SK97.html
The best sansui stereo receiver EVER where can i find this good things.
at 5m45 you mention the left driver board F2806 has no lid (compared to its sibiling on the right side.) I don't remember the exact phrasing, but from the service manual - this was designed that way, and it has to do with the proximity of the tuner
i just picked up the g-8000 totally idenitical except the power is 200wpc and it works but really need cleaned and gone thru and the tape scource selector needs replaced
The switches on these are still the weak link. I was lucky enough to get some on eBay all the way from Croatia. Now mine works flawlessly.
Awesome Video made me a subscriber today. I have a Sansui G 5000 That I'm trying to restore, would like your recommendations. Thank You
Hi Reuben, thanks for your kind words. The best advice I can give you is that if you don't have a lot of experience, take her to an expert with the experience, tools and test and measurement equipment to get the job done properly. If you have a variac and can measure transistor gain, ESR, DC offset and quiescent current, then by all means have a go yourself. Things to look for are noisy transistors, transistors that have drifted in terms of hFE, leaky capacitors, fuse resistors that have gone high, dirty contacts and connectors and noisy switches and controls. This particular G-9000 is still running strongly for my customer and almost everything in these great old units is fixable. Good luck and get in touch via my website if you have other questions.
Hey dude, nice repair vid. I was just wondering what brands of electrolytic caps you would recommend for this type of repair...or any audio repair come to it?
Cheers,
Mark
Hi Mark, glad you liked the video. I use a range of lab and mil-grade capacitors, and my choices depend on customer budget, equipment type / value and where in the circuit a part is going. In general I can recommend Panasonic, Nippon Chemicon, Elna, Nichicon, Epcos, Vishay, Kemet etc. Remember though that all manufactures make ranges of products, from cheap through to expensive and really good. You need to consider usage in-circuit, ESR, ripple current, voltage temperature and so on.
Thanks so much Mike, very much appreciate the sharing of knowledge. Also great to see a good audiophile repair channel.
Is the "protection/regulation board" the same as a power supply board? And are those "driver" boards the same thing as an amp board? Also, why isn't thermal paste used on all of those transistors lying on their backs? Is it because they have the silicone washers? Also, it would have been nice to have the bulb replacement on video just because there aren't many Sansui videos.
i mean you never mentioned the marantz 2600 which is 300 watts per channel and about the same size as your G-9000DB, and puts out more power than the sx-1980
An audiophile's wet dream.
Just picked up a nice G-7500 and wondering how to replace the bulbs...
😍😍😍😍😍😍
Great work,just wondering sound wise how do these receivers compare to say a au9500 or au7900 etc or even seperate pre amp and power amp?
They sound great but there's a lot going on in one box. The AU-9500 is a lovely thing, it doesn't have quite the balls this has, but they sound very good, possibly better, but smaller. Pre/power separation is always the way to go, if possible. Monster receivers hold a lot of appeal though!
@@LiquidAudio thanks for the reply.
The Pioneer SX1980 compared to the Sansui G22000 or G33000 would be interesting.
Agreed, very interesting! I have a customer out there somewhere who is meant to be bringing me an SX-1980, don't know anyone with a 22000 or 33000 yet though...
@@LiquidAudio The Sansui G22000 weighs 92 pounds. The Sansui G33000 weighs 101 pounds. The Pioneer SX1980 weighs 78 pounds. So the Sansui's were built better. Also Sansui made some amazing integrated amps and tuners in the mid to late 70s.
My friend has the Sansui AU-9900 and Sansui TU9900 tuner from 1976 and they sound great. The Sansui TU9900 and Sansui TU919 are 2 of the best tuners i'v heard. The only better tuner i'v heard is the Yamaha CT7000 from the 70s
Hi Dan, thanks for the specs. I'm familiar with them, I work on all sorts of the craziest gear as youll see if you check out my channel and website, but I'd like to work on one for sure! I agree that the Sansui tuners you mention are two of the best out there. I actually run one of the few remaining full tuner alignment workshops anywhere. My modified Marantz 125 is one of the very best tuners I've heard. Killer tuner when properly aligned and tweaked. CT-7000 is very cool!
Another guy that has a vintage audio repair channel had both at some point. I cant remember his channel but it was a video where he was working on his SX1980 and for a moment he mentioned a Sansui G33000 in the background. It'd be cool if Amir over at AudioScienceReview forum could get a really nice vintage receiver in to test against all the new stuff hes done. Just waiting for someone to send one in, people have to donate their gear and send it to him. He'll test it and post the results on the forum then send your gear back to you.
hi,i have a Sansui QRX7001 quad receiver and the front left channel has stopped working plus if set to "phono" i get very loud "popping" sound through speakers,is this an easy or inexpensive repair? thanks
Hi Jason, hard to estimate a repair cost without seeing and properly testing and diagnosing your unit. These quad receivers are complex and often present with several faults. I worked on one recently and it also had suffered output transistor failures. If you are anywhere local to Perth though, get in touch and we can book her in and figure out exactly what the problem is for you and go from there.
Picked up a FREE G-2000 other day, plugged it in, wont turn on...any obvious things to look for when i pull the cover tonight?
Hi and well done on the free G-2000! Possibly some basic things to look for but keep in mind that things that are obvious to me are not to most other people. Even if you do find charred components for example, replacing them in a home environment is not recommended in most cases. The most obvious one is fuses, some will be easily visible, others will not. Beyond this point we need to get technical, so if you replace 3AG/M205 fuses and they blow again, just take her to an expert for a repair. Every piece of electronics of this age will need professional attention, service, adjustment, lubrication and so on and it makes sense to do all that whilst it's in for repair.
Absolutely insane? I would be more apt to say beautiful beyond all compare, but okay. I don't want to know how much this set you back.
Hello, how are you? I need the output transistors and the Sansuo G5700 icitators. Would you have it for sale or would you know of any contacts? Here in Brazil I can't find them. I also need those two plates that come out of the price plate, and go to the dicipator, where the output transistors go. If you can please help me.
Hi Marcos, I'd love to help but I don't sell service parts on their own, only as part of the work I do here, on equipment brought to me for service, repair and restoration. Parts can be sourced from the usual suppliers like Mouser and Digikey though modern replacements will need to be determined in many cases.
Can you help me fix my sansui g9000db if i turn it on the protection light keep on blinking what do you think is the problem thank you.
Hi, I'd be happy to assist if you live locally and can get your receiver to me for inspection. The protection light indicates and fault and is saving further damage from occurring. It needs to go to someone able to test and trace the fault/s, don't be tempted to mess around here if you don't know what you are doing, the right technician will be able to sort this for you though!
i have the same unit, but mine emanates a foul smell a little after warm up, and is constant! After 30 minutes of use i nust turn the darn thing off, ant ideas what might cause this? Purchased it non-operational, and had it fixed, and cleaned. Could a cleaner do this, or does anyone else experience this? Any insight would be appreciated...
Hi, it shouldn't smell. Smells can be caused by many things, examples of things that can cause bad smells include: contamination from previous environment, eg smoker; liquid ingress; failed or failing capacitors; contamination from low-quality / bad cleaner; insects; even a small, dead animal...! Sounds like it needs a proper clean. This takes time, the right technique and chemicals. I hope you get it resolved.
Thanks, i hope to get it resolved, do not want to sell =(
Bought an Marantz from a heavy smoker...it's the worst. I have heard of guys in the ham radio world take the tuner out and put all the boards thru the dishwasher...i do not recommend...yet...i had a devastating flood. 5 ft of cold clean water. I have a 52 amp power supply that is flawless after 6 hours under water...been working like a champ for 4 years.
Those Oval Caps DO fail. I currently rebuild Sansui AU-919 and all 4 caps have capacitance between 9900 to 11200 instead of nominal 15000 uF and it is not isolated case. there is a nice video how to re-stuff those.
Hi Deniss, all caps can and will eventually fail, this is no secret or revelation. The problem is too many hobbyists adopt a shotgun approach because they don't know any better and replace perfectly good parts because they read somewhere that they 'should'. Most don't own the sort of gear to be able to properly test capacitors, leading to a proliferation of shotgun parts replacement. If a filter cap is bad it should be replaced. If it isn't, it shouldn't, unless there is a technically valid improvement being made. I've seen and worked on thousands of vintage Sansuis and others @ liquidaudio.com.au. The filter capacitors in most, but not all, were fine.
Sansui G-33000 bro...300 wpc
i have a sansui a60 not good ..sound qualites
Ninguém pergunta sobre potencia
Aren't The G22000 and the G33000 bigger than this???
Yep they are, I think I mention this in the video at some point, here are a couple of bigger receivers, but all of them, including the 9000DB are BIG units...!
@@LiquidAudio Golden era, I have a fully functional Pioneer SX-1250, I also have new stuf, but I dont change the Pioneer, its a keeper for life.
Don't get no brtterthen this !
i hava G9000 in h,k
How come you never show the actual repair?
Sometimes I do, but my focus on our core business of customer repairs, and my resultant lack of time and energy mean my videos are made very quickly. Even with almost zero editing, I can barely get them out!
No Sound?!
I bought one of this for $50 DLS, I was Dusty it turned on but not sound, I took it to the electronics guy for repair and He make it work the sound, but when I put it to test with the CZcams Left and right channel I noticed that just right channel is working, it doesn't matter if you connect the speakers to either Aor B idiot outputs it will show in the test just right channel is outputting sound, don't know what to do, I already paid the guy $230 dls and He didn't fix the problem, He doesn't understand me , also He moved the oudio outputs from their original position, I am afraid I will have to take it to a professional place because they will want to charge me a lot!!! What do you think is the problem and possibly solution? Thanks in advance!!!!
You definitely should be taking something like this to a professional. This is a priceless, irreplaceable piece of vintage hi-fi. It needs expert attention and when properly fixed, will reward you with many more years of pleasure. Yes, this will cost money, but it's always worth it!
The first easy thing to do with these is look for that switch on the side that has the protective plastic slot piece screwed in to keep it from moving. Remove that protective piece and cycle that switch a few times. This is one of the main causes for a channel that is in and out. Clean that switch.