I bought a used Gryphon Colosseum stereo amp about nine months ago from a seller who was upgrading to the Gryphon Mephisto Solos. I consider the Colosseum to be a destination amp for me, I plan on keeping it for a long time. I use it to drive a pair of Cantatas.
So, the amp has been running fine for the past nine months. A few times it detected DC on an input but recycled itself and was fine after that. However, a couple of days ago, when I got back from a trip out of town I turned on my source components, waited a bit, and then hit the power button on the Colosseum. The red Gryphon light on top immediately went out and the amp would not power up. I tried turning the bottom AC switch on and off but that didn't make any difference. I contacted Niels at Gryphon service and he told me to check the main AC fuse on the bottom of the unit. I did that and found that the fuse is still good, it has continuity.
We had a brown out when I was out of town but all of my other components are fine, and I can't understand why a brown out would have damaged the Colosseum as it sat in standby mode.
At this point, I guess I'm looking at bringing the amp into a service center, not an easy feat as the shipping container is out in Connecticut, at my mom's house, as I have no storage space. Luckily, there is a service center, SoundSmith, in Peekskill, in New York state. I live in New York City, and don't own a truck or a car but can make it all happen with a rental van. Of course, it's going to cost a lot.
Are there any other fuses that might have blown? Any thoughts from anybody?
For me, 2019 is shaping up to be the year the music died. ;-( At least my classical guitars still work.
Best,
Larry
So, the amp has been running fine for the past nine months. A few times it detected DC on an input but recycled itself and was fine after that. However, a couple of days ago, when I got back from a trip out of town I turned on my source components, waited a bit, and then hit the power button on the Colosseum. The red Gryphon light on top immediately went out and the amp would not power up. I tried turning the bottom AC switch on and off but that didn't make any difference. I contacted Niels at Gryphon service and he told me to check the main AC fuse on the bottom of the unit. I did that and found that the fuse is still good, it has continuity.
We had a brown out when I was out of town but all of my other components are fine, and I can't understand why a brown out would have damaged the Colosseum as it sat in standby mode.
At this point, I guess I'm looking at bringing the amp into a service center, not an easy feat as the shipping container is out in Connecticut, at my mom's house, as I have no storage space. Luckily, there is a service center, SoundSmith, in Peekskill, in New York state. I live in New York City, and don't own a truck or a car but can make it all happen with a rental van. Of course, it's going to cost a lot.
Are there any other fuses that might have blown? Any thoughts from anybody?
For me, 2019 is shaping up to be the year the music died. ;-( At least my classical guitars still work.
Best,
Larry
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