Well I was going to make a big deal about getting these today from Mouser.
But there are multiple dents and 1 significant dent. So no drooling just disappointment....blahView attachment 1233946 View attachment 1233947
Mouser is sending replacements for my replacements see I almost made it seem funny.
How are these main caps compared to the originals? Are they the exact same sizes in diameter and height? Have you removed the hum? I have 4 of these amps in my system and they're all stock. They sound fantastic and I'm not too concerned that the caps are old, but I won't be closed minded about it. I'd like to rebuild one and compare the sound next to each other. If I find a significant difference in sound with the rebuilt unit sounding much better I'll rebuild the others. Not sure about this, just a gut feeling, but I have a hunch rebuilding them might (just might) degrade the original sound of my stock L-09Ms. Of course I'll monitor the caps etc. for swelling & leaking. Rebuilding them just might make them sound exactly the same for all I know, but I also realize rebuilding them will give some piece of mind that they won't let the smoke out any time soon after rebuilding. I have found out over several years when using the KENWOOD L-Series that the sound is SIGNIFICANTLY better when using the matching L-07T, L-07CII, L-07M's, L-09M's and using the special one way interconnect OEM KENWOOD cables supplied with the L-07C's & L-07CII's. My speakers are just KENWOOD MV-5's, MV-7's & MV-9's but they sound great to me with those amps & some 10 gauge stranded copper wires. I can't emphasize enough how big of a difference in sound between the special factory KENWOOD interconnect cables & any regular interconnect cables used with the aforementioned KENWOOD L-Series components. I was shocked at how marked a difference they made! Those cables are very rare though. I luckily found a pair on eBay a couple years ago from a seller in England & snatched them up quickly. All you AK'ers running anything but those special KENWOOD interconnect cables on your KENWOOD L-series components, pre-amps & amps I feel for you, you just don't realize how much of a difference they are until you hear it for yourselves. THE DIFFERENCE IS HUGE! Now if I can just find a reasonably priced L-07D to complete my KENWOOD L-Series system, then I'll be happyOk good on Mouser the 2nd go round. The first shipment the caps were loose in a bubble wrap pouch and beat on each other. These were proper individually wrapped. Now they look purty enough to install. Drooling
Sorry just got round to checking on this post. I can say nothing about high frequency since I have just this one and use it for sub amp. But My hum is completely gone. The dynamics from the sub and the tightness with the rest of the system is improved after listening to it a lot now. I can not see any way that replacing electrolytics would hurt your sound, if anything it will improve the image. If your amp is original it can have some nasty pots on the bias board and those are not that precise. I improved that area and replaced every electrolytic on that board.How are these main caps compared to the originals? Are they the exact same sizes in diameter and height? Have you removed the hum? I have 4 of these amps in my system and they're all stock. They sound fantastic and I'm not too concerned that the caps are old, but I won't be closed minded about it. I'd like to rebuild one and compare the sound next to each other. If I find a significant difference in sound with the rebuilt unit sounding much better I'll rebuild the others. Not sure about this, just a gut feeling, but I have a hunch rebuilding them might (just might) degrade the original sound of my stock L-09Ms. Of course I'll monitor the caps etc. for swelling & leaking. Rebuilding them just might make them sound exactly the same for all I know, but I also realize rebuilding them will give some piece of mind that they won't let the smoke out any time soon after rebuilding. I have found out over several years when using the KENWOOD L-Series that the sound is SIGNIFICANTLY better when using the matching L-07T, L-07CII, L-07M's, L-09M's and using the special one way interconnect OEM KENWOOD cables supplied with the L-07C's & L-07CII's. My speakers are just KENWOOD MV-5's, MV-7's & MV-9's but they sound great to me with those amps & some 10 gauge stranded copper wires. I can't emphasize enough how big of a difference in sound between the special factory KENWOOD interconnect cables & any regular interconnect cables used with the aforementioned KENWOOD L-Series components. I was shocked at how marked a difference they made! Those cables are very rare though. I luckily found a pair on eBay a couple years ago from a seller in England & snatched them up quickly. All you AK'ers running anything but those special KENWOOD interconnect cables on your KENWOOD L-series components, pre-amps & amps I feel for you, you just don't realize how much of a difference they are until you hear it for yourselves. THE DIFFERENCE IS HUGE! Now if I can just find a reasonably priced L-07D to complete my KENWOOD L-Series system, then I'll be happy
You would not know part numbers for the aboveGlenn replaced the output transistors with On-Semi MJ21195 and MJ21196. The stock 18,000µF 120V filter caps were replaced with 22,000µF 160V caps. The cooling fans were replaced with ebmPapst fans.