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I have nothing more to say about capacitors on this thread. As I said previously talk of capacitors on this forum never ends well. Mostly due to Dean who tells everyone that they need new capacitors every time capacitors are mentioned.  I will let Dean have the last word. He will not stop until he does. I am just stating the truth as I know it from my electronic background over decades.   I still consider him a friend that often disagrees when the talk of capacitors comes up. I am sure all of us have friends in the real world that often disagree so it is normal on a social media forum as well. Dean and the late Bob Crites disagreed on this subject continuously years ago which was in a way entertaining. With no clear winner. Both are decent individuals but I did favor Bob because in his disagreeing he was always a gentleman. 

I'll check it out. Thanks.  

Dean I know of no honest technician who would tell a potential customer who had measured their capacitors with whatever ESR meter and came up with the numbers this member did and tell them those capacitors were bad. If they needed the business they might say, you know those capacitors are old and you may want to replace them with more modern ones and I would appreciate your business.    Most of the ESR meters out there are perfectly fine for technicians working in the field to find a bad capacitor in any electronic product. I honestly have never heard measuring at 100khz is not the right way of measuring a capacitor. If that were true why would engineers not use a lower hz value in their product such as the Peak Atlas? I do not even know if what you are saying is true and that Peak Atlas is measuring at 100khz and do not care to find out. I will just trust Peak engineers know what frequency is best for checking capacitors and have used that frequency in their product.   I make no distinction between a capacitor made for a computer and one made specifically for audio. Both should be almost equal in specs on a data sheet. I cannot see how a film capacitor is designed and built differently for an audio product than use in another electronic product.    There have been thousands of Peak Atlas ESR meters sold to engineers and technicians all over the world and are you trying to say they do not know what they are doing and only you know what meter is best for audio work?   Let's just be truthful and honest on this forum.   

i can understand when your in the business of capacitors / crossovers building and selling like Dean does, the testing equipment should be as good as possible.   I've looked at the b&k Dean mentioned, the retail price of that meter is 500EUR against 90EUR for the Peak Atlas. For home use, and testing my speaker capacitors just once (or perhaps twice) the costs of a professional meter is too much.    @Deang in your professional opinion, what is the frequency the capacitors for our speakers should be measured at? In the specs of the b&k 880 the selectable frequencies are 100Hz, 120Hz, 1kHz, 10kHz, 100kHz. assuming that (from the image you posted), 1kHz is for capacitors smaller than 0.01uF and 120Hz for capacitors larger than 10uF.

I am spinning some great rock & roll that’s was considered a little on the dark side back in the day  Artist - Black Sabbath  Title - Paranoid    Album ID - https://www.discogs.com/release/11803355-Black-Sabbath-Paranoid      

Thanks all. It’s very helpful. It’s not overheating. It actually improves the longer it’s in use. I’ll try and find someone to check the amp out. Like you say the main thing is the speakers are ok. 🙏🏻🙏🏻🙏🏻   i will swap the amps around. I have another Sugden in my DJ room. That one is brand new. The other was secondhand but from a reputable dealer.    i really appreciate your help.

I'm not in the market, but that setup sounds pretty sweet

This thread is not a good representation of this forum. Needless bickering of the same old topics. To the op, please come back and let us know after 100 hours what you think about your speakers.

I bought one of the MC275 clones Jan of this year 2023, and absolutely LOVE it! I replaced the EH tubes that it came with, with high quality KR Audio KT88 tubes and NOS Telefunken ECC801S and Tesla E83CC tubes and it actually sounds better than a real MC275 with factory tubes! I currently own a real Mcintosh amplifier, and have owned a Mcintosh MC275 in the past. The transformers are different than the original Mac transformers the Chifi transformers have 16 layers and the Mac's have 12. The only issue I have had with the clone is the green diodes that light the small tubes have quit working. Now the original Mac the diodes serve a function, they turn from amber to green to notify the user that the amp is "ready". This amp the green diodes are purely cosmetic and serve absolutely no function. I actually was glad when they all failed, because I think the amplifier looks better without them! Other than this, the amplifier has performed flawlessly. Anyone wanting that Mac "tube"  sound should really consider this option, as it will literally save thousands of dollars.    Best Robert

Hi Vince…I might be passing by your way next week.  Any chance I could listen to them? Dave