Well I recieved my first of three pro amps.It's a Ashly Fet-200.it's about twenty years old and still sounds fine.It stinks like a smoker should.It cost 127.00 shipped.I will need two more to complete the project.
I will post some pics of my progress.The outputs are on some nice aluminum heat sinks that should work fine without fans.There are four devices per channel.It's rated at about 350 watts bridged.I know i'll tax it with a four ohm load, but i'm looking for headroom not max output.
My plan is to house all parts under one roof for a 350 watt X (3) HT amp.Why.....who knows.The transformer is not a toroidal type.There is a bit of mechanical hum but, not audio hum. I have heard that a good place to upgrade is the bridge rectifier.How would i measure to be sure the new one will handle the load ? I'll power the amp with a nice dedicated 20amp line as i have a few left over in my room. Once done i can use balance connections from my Outlaw 990 to my Ashly PEQ's and then to the new (old) frankinstein amp.
I'll need a amp case to trans plant into if anyone has any suggestions.I know I had a great site but lost the link.If anyone knows, you guys do. Once i get aquainted with the parts I'll start to dismantle and label for reassembly.This should be interesting.
The main reason for the dismantle is that this amp is a forced cool unit , and I can't just turn off the fan and let all the parts cook.So, I'll reassemble with the heatsinks on the outside which will be fine.The heat sinks are huge..pics to come tonight!
I will post some pics of my progress.The outputs are on some nice aluminum heat sinks that should work fine without fans.There are four devices per channel.It's rated at about 350 watts bridged.I know i'll tax it with a four ohm load, but i'm looking for headroom not max output.
My plan is to house all parts under one roof for a 350 watt X (3) HT amp.Why.....who knows.The transformer is not a toroidal type.There is a bit of mechanical hum but, not audio hum. I have heard that a good place to upgrade is the bridge rectifier.How would i measure to be sure the new one will handle the load ? I'll power the amp with a nice dedicated 20amp line as i have a few left over in my room. Once done i can use balance connections from my Outlaw 990 to my Ashly PEQ's and then to the new (old) frankinstein amp.
I'll need a amp case to trans plant into if anyone has any suggestions.I know I had a great site but lost the link.If anyone knows, you guys do. Once i get aquainted with the parts I'll start to dismantle and label for reassembly.This should be interesting.
The main reason for the dismantle is that this amp is a forced cool unit , and I can't just turn off the fan and let all the parts cook.So, I'll reassemble with the heatsinks on the outside which will be fine.The heat sinks are huge..pics to come tonight!
Attached Files
.I'm not real worried about the heat.I ran the amp with the fan turned off for about three hours and they were hot to the touch, but not that hot.If I mounted them to the side out in the air of the room they'll be fine.
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