|
|
Post by gravesnumber9 on Nov 1, 2024 17:51:26 GMT -6
Kinda weird. I was sending a bass signal through it and it came out hot at first. Now the gain reduction meter isn't registering. The meter works on the other settings so it's not that. It also feels like no compression is happening, actually no compression is happening for sure.
Seems sort of odd. I wouldn't think that the output from my DA could possibly get hot enough to damage a unit like this.
Any thoughts?
|
|
|
|
Post by smashlord on Nov 1, 2024 18:10:40 GMT -6
If GR is not working but it still functions like a line amp then it's most likely the opto cell is toast. They should be good for about 10-15 years, though......
|
|
|
|
Post by gravesnumber9 on Nov 1, 2024 18:21:52 GMT -6
If GR is not working but it still functions like a line amp then it's most likely the opto cell is toast. They should be good for about 10-15 years, though...... Weird right? It's probably two or three years old. Could it just be a tube? |
|
|
|
Post by EmRR on Nov 1, 2024 18:22:55 GMT -6
If there's a side chain driver tube, yes.
|
|
|
|
Post by gravesnumber9 on Nov 1, 2024 19:03:30 GMT -6
If there's a side chain driver tube, yes. Hmm... this is a bit beyond my scope so bear with me. There is a side chain knob so would that mean there's a side chain driver tube? And would it be incorrect to assume that swapping out a tube is as simple as it is on a guitar amp? |
|
|
|
Post by smashlord on Nov 1, 2024 19:12:46 GMT -6
If there's a side chain driver tube, yes. Hmm... this is a bit beyond my scope so bear with me. There is a side chain knob so would that mean there's a side chain driver tube? And would it be incorrect to assume that swapping out a tube is as simple as it is on a guitar amp? Yes and in fact one of the tubes in the side chain driver is a 12AX7 like you would find in most guitar amps. Swapping the opto is also just as simple. It's the same type of socket as a power tube. |
|
|
|
Post by gravesnumber9 on Nov 1, 2024 19:31:43 GMT -6
Hmm... this is a bit beyond my scope so bear with me. There is a side chain knob so would that mean there's a side chain driver tube? And would it be incorrect to assume that swapping out a tube is as simple as it is on a guitar amp? Yes and in fact one of the tubes in the side chain driver is a 12AX7 like you would find in most guitar amps. Swapping the opto is also just as simple. It's the same type of socket as a power tube. Nice. That's something I can handle. Do y'all think I fried it with a hot signal? That seems a bit hard to believe but it happened when the bass signal hit it. Must have been that, right? |
|
|
|
Post by smashlord on Nov 1, 2024 20:04:32 GMT -6
Yes and in fact one of the tubes in the side chain driver is a 12AX7 like you would find in most guitar amps. Swapping the opto is also just as simple. It's the same type of socket as a power tube. Nice. That's something I can handle. Do y'all think I fried it with a hot signal? That seems a bit hard to believe but it happened when the bass signal hit it. Must have been that, right? To be honest, I don't know. That's beyond my pay grade. I've only had one opto go and it was an original UREI in a a 35 year old LA-2A, which I just chalked up to age. |
|
|
|
Post by Ward on Nov 1, 2024 20:23:03 GMT -6
Most likely the T4 opto cell.
Think of this as a great opportunity to contact Bill at Kenetek an pick from one of his various T4 cells which are all fantastic
|
|
ericn
Temp
Balance Engineer
Posts: 16,082 
|
Post by ericn on Nov 1, 2024 20:30:49 GMT -6
Yes and in fact one of the tubes in the side chain driver is a 12AX7 like you would find in most guitar amps. Swapping the opto is also just as simple. It's the same type of socket as a power tube. Nice. That's something I can handle. Do y'all think I fried it with a hot signal? That seems a bit hard to believe but it happened when the bass signal hit it. Must have been that, right? Doubt it, it most likely just gave up the ghost. |
|
|
|
Post by gravesnumber9 on Nov 1, 2024 20:34:49 GMT -6
Well the cool thing is this forced me to try a new signal chain for my bass and I got a pretty cool sound using the Aphex 661 instead. Man that thing is the best $100 I've ever spent.
|
|
|
|
Post by copperx on Nov 1, 2024 21:07:18 GMT -6
Most likely the T4 opto cell. Think of this as a great opportunity to contact Bill at Kenetek an pick from one of his various T4 cells which are all fantastic I am curious to know how it sounds with a Kenetek cell. Apparently AS wanted to build their own T4 cells because Kenetek has a different value resistor in the cell which makes a difference in the behavior. Found the link: www.audio-scape.com/news/t4b |
|
|
|
Post by tasteliketape on Nov 1, 2024 22:11:10 GMT -6
I’d shoot Chris @as an email . My experience with them has been beyond excellent
|
|
|
|
Post by smashlord on Nov 1, 2024 23:02:38 GMT -6
Most likely the T4 opto cell. Think of this as a great opportunity to contact Bill at Kenetek an pick from one of his various T4 cells which are all fantastic I am curious to know how it sounds with a Kenetek cell. Apparently AS wanted to build their own T4 cells because Kenetek has a different value resistor in the cell which makes a difference in the behavior. Found the link: www.audio-scape.com/news/t4b Kenetek makes several different ones with different time constants. I imagine there is probably a slower one akin to the 60s ones AS seems to be copying. FWIW, I have one of the "JBL Era" LA-2As and it sounds killer. |
|
|
|
Post by drbill on Nov 2, 2024 8:54:16 GMT -6
You should reach out to Chris at AS. He will get you up and running. And yes, the 661 works great on Bass.  |
|
ericn
Temp
Balance Engineer
Posts: 16,082
|
Post by ericn on Nov 2, 2024 15:23:14 GMT -6
You should reach out to Chris at AS. He will get you up and running. And yes, the 661 works great on Bass. I know this hard to believe but there are actually guys out there who don’t like Steinway! |
|
|
|
Post by thehightenor on Nov 2, 2024 16:04:28 GMT -6
Yes and in fact one of the tubes in the side chain driver is a 12AX7 like you would find in most guitar amps. Swapping the opto is also just as simple. It's the same type of socket as a power tube. Nice. That's something I can handle. Do y'all think I fried it with a hot signal? That seems a bit hard to believe but it happened when the bass signal hit it. Must have been that, right? Exceeding the max input level would cause audible distortion first and to cause damage you'd need a higher voltage than normal line level can deliver - like a fault in a connected device. |
|
|
|
Post by drbill on Nov 2, 2024 16:14:52 GMT -6
You should reach out to Chris at AS. He will get you up and running. And yes, the 661 works great on Bass. I know this hard to believe but there are actually guys out there who don’t like Steinway! Yeah - I HATE the 661 Steinways!! |
|
ericn
Temp
Balance Engineer
Posts: 16,082
|
Post by ericn on Nov 2, 2024 16:30:33 GMT -6
I know this hard to believe but there are actually guys out there who don’t like Steinway! Yeah - I HATE the 661 Steinways!! I tried to delete it |
|
|
|
Post by drbill on Nov 2, 2024 19:35:31 GMT -6
Yeah - I HATE the 661 Steinways!! I tried to delete it |
|
