AudioCircle
Audio/Video Gear and Systems => Owner's Circles => Digital Amplifier Company Owners => Topic started by: Nsm1979 on 19 Feb 2022, 04:13 am
-
Anyone have suggestions on where to go to get an early version of the King inline maraschino mono amps repaired?
-
Not to state the obvious, but has the manufacturer declined to help? Support@DigitalAmp.com
Apologies. I checked the website (which looks to be running as usual) but had not heard the sad news.
-
Not to state the obvious, but has the manufacturer declined to help? Support@DigitalAmp.com
Might want to take a look here:
https://www.audiocircle.com/index.php?topic=179605.0
-
You might talk to Leo… here….
https://orchardaudio.com/shop/ols/products/starkrimson
Leo worked with Tommy in the electronics field, was a friend of Tommy’s and used some of his designs… he may be able to help.. either way, please post back here and let us know.
-
I would be interested to know where to get DAC amps repaired as well. Last fall, I purchased a pair of 3 King Cherry amps for vertically tri-amping a speaker that was being built for me. I did not have a way to test the amps during the wait time, as my other system is fully active with built in Hypex amps. My new speakers finally arrived this past Friday and I hooked everything up. One of the amps is having an issue. It will play for 10 minutes or so, then completely shut off for about 10 seconds, then will come back on. Obviously disappointing, and I would like to get it fixed. I do have other amps and configurations I can use, so it is not keeping me from listening. Sadly, Tommy is gone and I would like to find someone that can do the repair. It may be something simple, but I am not sure. I do hear some switching in the amp so I am wondering if it has something to do with the automatic idle used. Just guessing.
-
I reached out to Leo at Orchard Audio. He acknowledged working with Tommy in the past. He stated that he had reached out to the family offering to help with leftover product, but did not receive a reply. Leo would need access to the details of how Tommy’s products were constructed to enable any kind of repairs to be performed.
Possibly someone close to Tommy’s family can connect them with Leo. Seems a shame to have Tommy’s talent and hard work just vanish.
-
Let alone being overwhelmed by Tommy’s passing, It is likely that his kids don’t know that there is value to Tommy business and designs… nor what to do next. They probably need some help and guidance in this area. And I’m sure they have a lot on their plates way more important than this.
Other than maybe the cherryamp moderator, mfsoa, I’m not sure anyone here knew tommy or his family on a personal level. Maybe now that a few months have passed, Mike might feel he could reach out to them.
I’ve talked to Leo and if Tommy’s family were interested, there might be a way for Cherryamp to continue… but it would take someone putting everyone together and then working through the details.
Hopefully it can be done.
-
Leo is certainly the right guy, if both are willing. I pray for Tommy's family, as it's a tough road for sure. The product line still has significant value, at least for a time, so hopefully they can make something happen that is best for all concerned.
-
I reached out to Leo at Orchard Audio. He acknowledged working with Tommy in the past. He stated that he had reached out to the family offering to help with leftover product, but did not receive a reply. Leo would need access to the details of how Tommy’s products were constructed to enable any kind of repairs to be performed.
Possibly someone close to Tommy’s family can connect them with Leo. Seems a shame to have Tommy’s talent and hard work just vanish.
You might talk to Leo… here….
https://orchardaudio.com/shop/ols/products/starkrimson
Leo worked with Tommy in the electronics field, was a friend of Tommy’s and used some of his designs… he may be able to help.. either way, please post back here and let us know.
Leo is certainly the right guy, if both are willing. I pray for Tommy's family, as it's a tough road for sure. The product line still has significant value, at least for a time, so hopefully they can make something happen that is best for all concerned.
Hi everybody,
I would love to help. The situation is such that his family has to allow me access to Digital Amp Co's information. I have reached out to them a few times offering my support and to see if there is someway I can help with the Tom's business.
If somebody needs help with a DAC DAC, I can help there as I am the designer of that product.
As for the amps, I don't know what Tom did there and do no have any information on them.
Regards;
Leo
-
Hi Leo,
Tommy's passing certainly took me by surprise. I met him through my membership in The New Jersey Audio Society, and did purchase some of his products.
I am one of the people who paid upfront for the DAC DAC 3 Kickstarter project, which has been in long delays due to the unavailability of certain parts. This is certainly not a large amount of money in the audio world, and I would have no problem calling that a writeoff for the sake of Tommy's family. Perhaps you could approach Tommy's family about this item and/or the remaining earlier models of the DAC DAC that might still be in the production loop. I would also have no problem with additional funds to you for this work. I am not acquainted with any others who contributed to the Kickstarter project, and can not speak to their desires.
Thanks,
Steve
-
LostInPA, +1. I put 1000 dollars in the Kickstarter project. I did this without expecting anything in return, cept maybe a T shirt. I had no regrets then as now. With the heartbreaking loss of Tommy, I could care less about the money. I had the extra money, loved his amps. And like a few others, one of my Maraschinos failed-as to fault, again it doesn't matter, just would like it repaired. I understand Leo's reluctance to attempt repairs without a schematic at minimum. Hopefully as time goes on the family can help resolve the situation. Hopefully the family is working with a grief counsellor.
-
I have what may be a very naiive suggestion: every major city has shops that repair electronic equipment including audio gear. Sure, Tommy's designs are highly specialized and certain repairs may not be able to be done without schematics. On the other hand, if something basic has failed isn't it possible that someone with a good knowledge of amps can fix it? As an example, I'm having an issue with the power switch on my Maraschino STM power supply, it's likely my local electronics guy replace the switch. Of course OEM repair is ideal but when that's not an option I would think it would be worth taking Tommy's gear to a reputable repair shop. His amps are so damned good that I can't imagine trying to replace them with something else without first searching high and low for someone who can fix them.
-
I am hoping that someone can repair these beautiful sounding amps. I just bought a broken pair of King Maraschino's. I also have 15 channels of Cherry Amps now. I am going to be active triamping my diy speakers. They will have all King Maraschino's. I know way overkill. I couldn't find the Maraschino amps with the 45 volt supplies used. So I just went for the gusto. Oh well you only live once.
-
I also was looking for a repair for one of my Golden Cherry monoblocks ( a problem caused by my own stupid mistake). I communicated with Tommy just weeks prior to his passing and he advised me to send the amp in to him for repair. I sent the amp in and the timing couldn't have been worse. The amp was received and signed for by Tommy ..... so I have a Golden Cherry monoblock up there somewhere. If I could just get it back, I would attempt the repair myself even though I'm no technician.
I also purchased a dac dac 3 during the kickstarter campaign -- it's not likely that anything will come of that and I accept that.
I had several personal discussions with Tommy and admired and respected him a great deal and was more than saddened by his untimely passing.
-
They still in activity ?
-
It would be great if Leo could take over the line of Cherry amps or at least be able to service them.
I am a long time owner of the Marachino line of amps. One thing I can suggest to help avoid shorting them out is use speaker cables with banana connectors that are less likely to come loose and bridge between the +/- terminals.
-
So sorry to hear of Tommy's passing. He was so helpful when I was considering purchase of new amps, and when I had a failure.
I have a 4-Cherry with one dead card. Seems that one pair of output FET's is shorted. Does anyone now the manufacturer and part # of those devices?? Or does anyone have a dead card which is unlikely to have blown output FET's?
Thx, Bob
-
Very sorry to see Tommy's passing. Rip... I noticed when my Cherry STM broke, and wrote to Tommy, with no replies then searched what's happening... Now discovering this... I'm without words. I'm searching what to do with my STM. I just happened to take XLR out when it was on... And now there is repeating noise coming from power supply like a car starting engine... But it doesn't work. May be it's just a fuse, i don't know. Either way I'm thinking to sell my Cherry STM (60v). If someone interested, you can write me...
-
Very sorry to see Tommy's passing. Rip... I noticed when my Cherry STM broke, and wrote to Tommy, with no replies then searched what's happening... Now discovering this... I'm without words. I'm searching what to do with my STM. I just happened to take XLR out when it was on... And now there is repeating noise coming from power supply like a car starting engine... But it doesn't work. May be it's just a fuse, i don't know. Either way I'm thinking to sell my Cherry STM (60v). If someone interested, you can write me...
I had an issue with mine as well years ago when the two speaker cables hit and shorted. Tommy had to repair it and he told me there were no fuses. I'm sure there is someone somewhere who can repair these but I'm not sure whom. I emailed Tommys friend who posted on this board after his passing and he didn't know anyone.
-
Many, many years ago...long before I bought a 2Cherry, I was concerned about shorting whenever the amps I owned had both connections near each other, which is often the case....so, I cut a piece of plastic tubing 2" long to separate the Red and Black connections...and slit it end to end so that it would be easy on easy off....this method has worked perfectly.
Here is a picture taken of the rear of my 2Cherry. You can see the tubing in the photo on the right hand side of the amp on the table. One piece of tubing to insulate the black from red on the right side and another piece of tubing to insulate the black from red on the right side.
Simple solution and very inexpensive.
(https://www.audiocircle.com/image.php?id=241429)
-
I had an issue with mine as well years ago when the two speaker cables hit and shorted.
Same thing happened to me when I owned the STMs!
-
I touched one of the speaker cables to ground and seem to have shorted the output MOSFETs on my one of my 4-Cherry cards; the card says Maraschino Cherry Amp Rev F. The MOSFET part is a B416 made by Alpha Omega Semi, whose site says that part is discontinued. I have found a few suppliers with them in stock.
I was dumb enough to do this twice; Tommy repaired the first one. When a card fails, I hear what sounds like small relay clicking every few seconds; probably a safeguard for power supply since it doesn't seem to have any fuses.
I've read other postings that mention similar symptoms in various models.
Tommy may have had some MOSFETs in stock or some assembled cards in process in Dec. May be difficult to obtain those from his company. If difficult, I'm thinking about ordering some of the B416's and trying them on my card. If successful, I can offer parts to other owners with similar failures/symptoms.
Bob
-
I did a similar sleeve on my bananas; be nice if they were further apart.
Bob
-
Very sorry to see Tommy's passing. Rip... I noticed when my Cherry STM broke, and wrote to Tommy, with no replies then searched what's happening... Now discovering this... I'm without words. I'm searching what to do with my STM. I just happened to take XLR out when it was on... And now there is repeating noise coming from power supply like a car starting engine... But it doesn't work. May be it's just a fuse, i don't know. Either way I'm thinking to sell my Cherry STM (60v). If someone interested, you can write me...
Ealtan: See my posting from a few minutes ago; I have the repeating noise in my when the failed card is installed. Once I removed the failed card, the other 3 channels work fine.
Bob
-
Yes Bob, the sound is like what you described, a relay clicking. If there is no fuse, the situation I thought is even worse. The thing is I live in Turkey, so difficult to find someone who understands class d amps... If there is a failed card issue, I'll need all the help. Shorting from a touch of speaker cables is more common. But taking out XLR cable is what I did in all my previous amps. Nothing happened. A disturbing sound from speakers came at most. And I'm seriously thinking about selling it... Considering even sending to somewhere else, all repair, transportation and the extra VAT reduced price...
-
Likewise I also have a Cherry amp (STM with King power supply) with the clicking noise and no output, in need of repair.
If and when anyone finds either someone capable of repairing this amp, or supporting information so that a non-affiliated repair person can do the repair, I am interested in the info also.
-
... When a card fails, I hear what sounds like small relay clicking every few seconds; probably a safeguard for power supply since it doesn't seem to have any fuses. ... I've read other postings that mention similar symptoms in various models.
Tommy may have had some MOSFETs in stock or some assembled cards in process in Dec. May be difficult to obtain those from his company. If difficult, I'm thinking about ordering some of the B416's and trying them on my card. If successful, I can offer parts to other owners with similar failures/symptoms.
@bobh123, It's very kind of you to offer to share the result of the experiment you mentioned, and possibly some parts. if you would, please do let us know how it goes.
It seems that we are most likely on our own in terms of getting these amps fixed, so any info on potential solutions (whether successful or not) would be of interest and appreciated by many owners.
-
Several sites including Alpha Omega confirmed that the FET is obsolete. A few warehouses in China have them. I ordered a bunch tonight. Should be here in 2 weeks. Hopefully that'll fix the issue.
Bob
-
Yep that's supposedly the problem with mine. And supposedly they only come in matched pairs I was told. And very expensive.
-
@bobh123 or others, can you tell us how many of the B416 parts are used per channel? (I haven't opened my STM/power supply case yet to take a look, I guess that I might as well at this point.)
-
FL Guy: Each channel has 4 FET's. I touched one speaker lead to ground which seems to have shorted out 2 FET's.
RHale: Matched pairs are expensive since rarely does a semiconductor manufacturer provide them because of the relatively low volume compare to the quantity made within wafer runs; often we're looking for a pair that was close to each other on the same wafer. Pairs are normally matched by the equipment (amp) manufacturer. Is time/labor intensive, especially if the parts have wide variation in their characteristics necessitating more time to find a pair.
I received 100 of the FET's a few days ago; part numbers on the received parts match what's on my channel card. I will strive to match a pair then place into my failed card; I'm hoping that the shorted FET's didn't take out any components earlier in the signal path.
Will let you know my results, and if feasible for me to match & offer pairs for a reasonable cost.
-
Thanks for the reply. I hope it works and you can help others out. Mine will hopefully be done this week.
Thank You,
Ron
-
@bobh123, thanks for the info. @bobh123 & @rhale64l7, I'm looking forward (I'm sure others too) to hearing how it goes.
My case might be slightly different, not certain - mine failed around the time of an electrical storm (different path though of course, so I'm not sure whether it's the same problem). Or perhaps I might have been clumsy and touched a speaker wire to ground but didn't notice it. In any case it has the same clicking sound symptom, so it sounds like the FET(s) are likely at least a problem.
Likewise, I'm just hoping that this works, and no other components were damaged in the process.
-
I would like to say again that using a binding post sheath such as in the photo below is critical for Tommy's amps.
(https://www.audiocircle.com/image.php?id=243644)
Many amps have binding posts that are farther apart...or are encased in a plastic housing which makes shorting much more difficult (see photo below). Tommy's amps often have binding posts that are close to each other and not plastic housing so unless you always turn the amp off and wait a few minutes before changing speaker connections, you are at risk.
(https://www.audiocircle.com/image.php?id=243645)
FWIW, I would say that in Florida, lightning protection, power strips, or unplugging after listening are pretty important given how many storms there are from late may through September.
-
When time permits, it would be great if someone could post pic(s) of the correct - and genuine, FETs for reference. Thanks!
-
I would like to say again that using a binding post sheath such as in the photo below is critical for Tommy's amps.
(https://www.audiocircle.com/image.php?id=243644)
Many amps have binding posts that are farther apart...or are encased in a plastic housing which makes shorting much more difficult (see photo below). Tommy's amps often have binding posts that are close to each other and not plastic housing so unless you always turn the amp off and wait a few minutes before changing speaker connections, you are at risk.
(https://www.audiocircle.com/image.php?id=243645)
FWIW, I would say that in Florida, lightning protection, power strips, or unplugging after listening are pretty important given how many storms there are from late may through September.
Genius idea! Love Tommy's amps but why didn't he either install a freaking fuse or separate the binding posts wider? Regardless love what you've done!
-
Ron: After you'd earlier posted your idea about the sleeves, I installed them on the amp terminals. Unfortunately, when I moved the speaker for carpet shampoo'g I forgot to turn off the power and touched the speaker end of the cable to ground. Hence my current repairs.
Ron: Sounds that you sent your amp in for repair. What did you have repaired and where?
FL Guy: Here's pic of one channel card from my 4-Cherry
(https://www.audiocircle.com/image.php?id=243678)
-
@bobh123 - great, thanks. That may help folks who attempt to source parts (now or in the future).
-
Bob… I never had to have my 2Cherry repaired. Because I live in Florida with lots of lightening, I never leave the system powered on, so almost no chance for shorting. As for the sleeves, I’ve used those on and off over the years depending on the binding posts of the amp I had at the time… and when I kept reading about Cherries shorting out, it seemed like posting this idea might help others.
-
I went through quite a process to match MOSFET's both for current and voltage to less than 1%. I selected a pair and replaced the shorted pair of MOSFET's; I did not replace the functional pair. The amp works and sounds great.
If you have what sounds like a small relay clicking, that's likely an overcurrent protection in case a channel shorts out. You can easily check by unplugging the AC power plug, removing the top cover and using a DVM to check resistance between the 3 leads on the FET; for my shorted channel, all 3 combos of lead pairs showed a short so was easy to confirm.
If someone needs pair(s) for a channel, I can match more and sell them to you.
For those wanting to repair a unit, realize the MOSFET's are challenging to gently remove without damaging the PC board traces. I may entertain replacing MOSFET's on cards that have known shorted MOSFET's; shipping the card costs less than shipping the whole amp. Most other repairs will be harder without a schematic. Seems to be an FPGA or similar on the board.
Bob
-
Bob… I never had to have my 2Cherry repaired. Because I live in Florida with lots of lightening, I never leave the system powered on, so almost no chance for shorting. As for the sleeves, I’ve used those on and off over the years depending on the binding posts of the amp I had at the time… and when I kept reading about Cherries shorting out, it seemed like posting this idea might help others.
Hi Ron: I misunderstood because one of your earlier postings said something like that's what happened to mine, which I inferred to mean that you had a failure. Sorry for confusion. Bob
-
I'm pretty sure you could start a side business repairing these amps for people if you wanted to do so!
-
Excellent info, thank you @bobh123 - and congrats on the successful repair, and restoring your amp to operational.
I went through quite a process to match MOSFET's both for current and voltage to less than 1%. I selected a pair and replaced the shorted pair of MOSFET's; I did not replace the functional pair. The amp works and sounds great.
If you have what sounds like a small relay clicking, that's likely an overcurrent protection in case a channel shorts out. You can easily check by unplugging the AC power plug, removing the top cover and using a DVM to check resistance between the 3 leads on the FET; for my shorted channel, all 3 combos of lead pairs showed a short so was easy to confirm.
If someone needs pair(s) for a channel, I can match more and sell them to you.
For those wanting to repair a unit, realize the MOSFET's are challenging to gently remove without damaging the PC board traces. I may entertain replacing MOSFET's on cards that have known shorted MOSFET's; shipping the card costs less than shipping the whole amp. Most other repairs will be harder without a schematic. Seems to be an FPGA or similar on the board.
Bob
-
I would be interested to know where to get DAC amps repaired as well. Last fall, I purchased a pair of 3 King Cherry amps for vertically tri-amping a speaker that was being built for me. I did not have a way to test the amps during the wait time, as my other system is fully active with built in Hypex amps. My new speakers finally arrived this past Friday and I hooked everything up. One of the amps is having an issue. It will play for 10 minutes or so, then completely shut off for about 10 seconds, then will come back on. Obviously disappointing, and I would like to get it fixed. I do have other amps and configurations I can use, so it is not keeping me from listening. Sadly, Tommy is gone and I would like to find someone that can do the repair. It may be something simple, but I am not sure. I do hear some switching in the amp so I am wondering if it has something to do with the automatic idle used. Just guessing.
Hi csmgolf: See my recent postings on successfully repairing one of my Cherry Amp cards by replacing MOSFET's. I have more FET's. Bob
-
Yes Bob, the sound is like what you described, a relay clicking. If there is no fuse, the situation I thought is even worse. The thing is I live in Turkey, so difficult to find someone who understands class d amps... If there is a failed card issue, I'll need all the help. Shorting from a touch of speaker cables is more common. But taking out XLR cable is what I did in all my previous amps. Nothing happened. A disturbing sound from speakers came at most. And I'm seriously thinking about selling it... Considering even sending to somewhere else, all repair, transportation and the extra VAT reduced price...
See my recent postings about finding MOSFET's and repairing one of my channels. Bob
-
Thanks for the reply. I hope it works and you can help others out. Mine will hopefully be done this week.
Thank You,
Ron
Hi Ron: Where did you have your amp fixed and what needed to be repaired? See recent postings on getting MOSFET's & fixing mine. Bob
-
Hi Ron: Where did you have your amp fixed and what needed to be repaired? See recent postings on getting MOSFET's & fixing mine. Bob
Bob, Thanks for sharing your findings regarding the amp repairs. It is encouraging to know the amps can be repaired in the event of a short.
I am curious to know where Ron sent his amp to be repaired.
-
For those that my be interested, I have used this company to repair boards, they do good work:
https://circuitrework.com/
My contact:
aprice@circuitrework.com
-
For those that my be interested, I have used this company to repair boards, they do good work:
https://circuitrework.com/
My contact:
aprice@circuitrework.com
Thanks for the contact information.
-
+1 @GregC. Thanks @orchardaudio.
-
Sorry folks forgot about this thread. My amp finally got repaired. It took a while. It was the fets as everyone else has mentioned. It was done at Protech repair in Cuyahoga Falls Ohio. Phone number is 330-879-8974. Just mention that it is one of them small amps with the Fets. The only problem is he is getting ready to retire so is taking a lot of vacations. Lol So the person on here might be a good choice also. If you need more help PM me. Or I will try to remember and check back. He would have to order the Fets from China also.
-
Also Bob it would be nice if you could do it. If you have any questions please feel free to ask either on here or in PM
-
I bought 100 of the FETs, have 90 left, and can match sets of 4. $40 per set plus $9 shipping.
Bob
-
Hi Bob,
Are 4 FETS needed to repair a single mono amp? Thanks for your contributions to help owners keep these amazing amps!
Greg
-
Hi Greg:
I've repaired my 4-Cherry and one Stereo Maraschino. Both have 4 FET's for each channel. Since you're asking about a mono amp, I presume it's a Maraschino and likely has 4 output FET's. If you're game to open the chassis and access the board you can confirm if you have AO B416 FET's; that's what my amp uses.
When losing a channel, seems that only one pair goes out. Matching is important in two areas:
* Balancing source current between a pair of FET's that are in parallel. This is more critical in amps with many more parallel FET's.
* Matching Vgs of the FET pair on one side with the pair on the other side. For some amp designs, this is important to adjust crossover distortion to a desirable value; I don't know if that's critical for Tommy's Class D amps. Presumably it is because of a posting I ran across (I think from Tommy) that talked about the extensive work involved in matching FET's in a channel; no specifics about how well matched or the consequences if not matched. Part of his secret sauce !!!
Nelson Pass posted a great article in 1993 about how to match FET's; he advocated that MOSFET's P's and N's don't need to be matched. I matched mine for Isource of a few hundred mA's to within a few mA and Vgs to 20mV or less.
I'm suggesting a set of 4 FET's for those that want to replace all 4 in a channel, or want to have spares on hand if another channel fails; can save time hunting for more FET's in the future. The manufacturer no longer makes the parts or has inventory; I found inventory at 2-3 distributors in China and decided to order 100 to give a better chance of matching and to help other Cherry Amp owners in a situation similar to me. I chose to only replace the shorted pair on one side of the one failed channel of my 4-Cherry. My aged, tinnitus-affected ears can likely not detect the last few hundredths of a % of distortion. :icon_lol: :icon_lol: :icon_lol:
For those that don't need matching or want to do their own matching, I'll sell to each amp owner up to 8 FET's for $2 each plus $9 shipping.
Bob
-
Hi Bob,
Thanks for the detailed response. I have all Cherry amplification in my setup.
Mains: 2 Golden Cherry mono amps with very rare linear PSUs that Tommy fit into his 60v cases. Mine has blue LEDs and the no sleep feature.
1 King Cherry mono amp with a 60v supply (Tommy disconnected the LED because the amp is under my center channel stand that sits below the TV in direct line of sight).
1 King Cherry STM MK2 with 60v supply for surrounds.
I have not had a short in awhile. I take extra care to use banana plugs and be careful to not let the end bridge between the metal speaker posts.
I am thinking about buying some FETs in case I need them in the future. I do not have the skill to replace them myself if I ever have an amp short out but having the parts may come in handy.
-
Bob it seems I need some of those Fets. Don't ask how I did it. I am going to PM you. Also can someone confirm on the 60volt power supply I have a 8Amp small but are they fast or slo blow? I have the SMPS800RS and it is one that has two outputs.
Thank you,
Ron Hale
-
Greg C: Let me know how FET's and whether matched or not.
Bob
-
Hi Ron:
We won't ask :D :) :(
If you're game to remove the cover, you can check if the fuse is blown with a DVM. My guess is that it is a slow blow given current of 8A; the current surge to charge the filter caps could be hefty. You might be able to read some fine print on the fuse. The 2 amps I've repaired have relays in them; I hear relays clicking some seconds after power on, and again at power down.
Bob
-
Yeah I blew the fuse also. It is a slow blow I believe. I ordered one. 8 amp is not common. And the relay kicks then it kicks off within a second. Se problem with the other amp I had.
-
Well folks I love to diy. I wanted to send out a feeler, And this goes along with people not finding parts. So I am thinking of putting up my 60 volt Cherry amp supplies. I have 4. I will take 300$ each or 550$ for two. So if you blew one up like I did I would have spares. I would sell all 4 for 1,000$
-
I'll take one. Sending you a PM.
-
For anyone interested on a related note...
I have 3 Cherry amps that I will be listing in a day or so and a very good price.
They will include ALL the misc. parts, XLR/RCA converters, extra power supplies, etc.
I think there are 4 power supplies total.
If anyone is interested please PM and I'll reach out with early info.
One PAIR inline cherry Maraschino King In-line 60 Volt
One single amp Cherry King DTM with triple caps
I'll likely be selling these at a very good price, especially as a combo of all 3.
-
If anyone else is interested in any of these power supplies I have 2 left I will sell for 250$ ea. They are the King 60 volt power supplies that are the original ones that came with the King Maraschino amps.
Ron
-
Looks like I am needing a set of FETs also. These would be for an STM Mk2. The part number on these FETs is BV8N11. I have a local tech that is willing to replace the blown parts, we just need to get our hands on the replacements.
Larry D.
-
Try Mouser or Digi-Key.
-
Thanks FRM. Already tried those two. They are my regular go-to sources.
-
oops, sorry...
-
Folks I have two 60 volt power supplies from Micro Audio that are in custom boxes. All OCC copper Neotech and Vampire wire inside. Also have good IEC inlets and Neutrik DC cable outlet. I will take 250$ a piece. Both for 400$
-
If you want photos email me or message me on here and give me your email address.
-
Yesterday I discovered that one of my three MEGAschino mono blocks stopped outputting sound. Upon inspection, there is an internal red LED light inside indicating some sort of Ch2 fault. The other two monos have only the blue lights and function perfect. Has anyone else experienced this? Any ideas for possible repair if needed? I've reached out to Tommy's son for possible direction, but don't expect a response as he never responded to my prior messages upon Tommy's passing (RIP buddy).
(https://www.audiocircle.com/image.php?id=263688)
(https://www.audiocircle.com/image.php?id=263689)
-
Just FYI:
I did get my STM King MK2 repaired after buying a matched quad of FETs from bobh123 and having the local tech in Twin Falls install them and test out the unit. Now, it sounds as great as it did before. I'm being more careful now with the amp's cables while it's running. It's been working well for over a year now, so as long as you have a good tech, these amps can be fixed.
Larry D.
-
Thanks Larry. I'm not sure the issue, but would like to explore a fix. There are no signs of damage and no bad/odd smell. I have used shielding on the binding posts since I bought them new from Tommy in late 2020 as I wasn't comfortable with the closeness of them. I am thinking that it is another issue and would be willing to ship it to someone competent for a prognosis. I'll PM you if you don't mind sharing the repair shop in Twin Falls.