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Tech Guys

Marko1960
Posts: 3145
Wow! Ok, the 12th fret is halfway between nut and bridge and on early guitars that's all you got, then there was compensator bridges which allowed for intonation but provided no adjustment. Fit the new bridge so the 12th fret is halfway between nut and bridge saddles but make sure there is room either way for intonation adjustment. Once its on, let me know and I'll talk you through intonation
IamMark
Posts: 1103
Are there ways of testing the output of an amp?

My Yorkville amp was a 400 watt amp, but then it and my speaker cab were struck by lightning.

I took them to a Yorkville licensed repairman and he got both working, but it's not right.

I never had my volume past 4 and it would punch nice and clean. Now I have to crank the volume to 8 to get the same volume level, but the speakers don't sound clean at all. Almost like they're blown. But not at low levels.

How do I know what the amp is putting out?
IamMark
Posts: 1103
So a little more information to my above problem…

I can turn the gain and volume up to level 4 (on both) and get the tone and punch I used to get. But the speakers fart. Not distorted like a distortion pedal, but a garbled fart on the low end.

I took the screen off my Eden cab and the cones look fine. No creases or cracks. When I lightly push on them there's no scratching or resistance other than the air pressure.

So I don't know.

I will pull the speakers out tomorrow and check the wiring.

I'm at a loss here.
Marko1960
Posts: 3145
I'm at a loss too but here's my theory, the cones are probably fine, its more likely that the circuit board has been damaged by the overload and the resistors and capacitors are no longer maintaining the amount of Ohms going through the cones. This is a shot in the dark, hope it helps. On the plus side, the amp and cab are not totally dead, where there's life there's hope
IamMark
Posts: 1103
I've sent an e-mail to Eden's support group. Hopefully they can provide some insight/options.

From what I've gathered, because of the age of my cabinet it doesn't appear I can replace the speakers with the same model 10-inch speakers.

I've asked for a schematic of the speaker cabinet, but again, because it's so old they may not have that to share.

This is all very depressing to me. I loved that cabinet before the lightning strike. I don't want to smack down $600 - $700 to replace it with a new cab.

I'm going to pull the speakers and the back panel tonight to see how the wiring looks.
IamMark
Posts: 1103
Could the voice coils have been damaged by the lightning strike and that's what's making this noise?

If I take the cabinet apart tonight and the wiring looks intact, and the board looks fine, I can only assume it's something internal to the speaker. Since magnets don't go bad (or at least these aren't because there is speaker movement) I can only assume what would be left is the voice coil.

I don't want to rip a speaker apart just to find out either.
IamMark
Posts: 1103
So the speakers and wiring all look fine.

Out of frustration I pulled my 25 year old Crate b10 practise amp out and plugged my bass in. The b10 is a 25w amp with an 8-inch driver. I get more volume out of that than my 400 watt setup.

Something is seriously screwed up.
Sidsquishus
Posts: 1499
You've somehow slipped into the parallel Anti-universe. Everything is going to be the opposite of what you are used to - get over it!
Marko1960
Posts: 3145
I think Sid has hit the nail on the head, you seem to be dealing with abandonment issues! Shit happens man!! Take it to a specialist. Sorry I was no help on this one but with a power surge it could be anything, even de-magnetising the magnets!
IamMark
Posts: 1103
I'm calling the tech that “repaired” the amp and speakers today for a “WTF” conversation.

He offered me $1,500 for both when I first picked them up from him after he “repaired” them. I should have taken the offer.

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