The outer shell/chassis of each of these amps is demolished. I found both of them at work. They have alot of water damage on the structural parts, and ive been soaking them in vinegar for days. Just finished cleaning up the shells. The boards however are intact. They look nearly untouched inside. No sign of age or even use. Shockingly out of the all the amps i have these 2 are the cleanest even though their exteriors are wrecked.
After cleaning them, they are getting a coat of ceramic paint and ill be trying to add the stickers back, or similar ones to the originals.
However, id like to maybe modify these beauties alittle. maybe try to squeeze some more watts out of them. Im considering changing the mosfets and transistors, and maybe caps, but im not entirely sure on the process. Ive asked friends who have knowledge in this field and they are unsure of what to do, without looking at it.
Where do i go from here?
After cleaning them, they are getting a coat of ceramic paint and ill be trying to add the stickers back, or similar ones to the originals.
However, id like to maybe modify these beauties alittle. maybe try to squeeze some more watts out of them. Im considering changing the mosfets and transistors, and maybe caps, but im not entirely sure on the process. Ive asked friends who have knowledge in this field and they are unsure of what to do, without looking at it.
Where do i go from here?
Amplifiers are designed as a 'system' of circuits that are all designed to work to produce a specific output level. With the exception of the PS FETs, there isn't much to modify. Even then, those simply make it a bit more rugged. There is virtually nothing you can do to make the amp produce significantly more power unless it's being used for intermittent use.
In effect, you turn a vehicle that was capable of driving cross country into a dragster.
In effect, you turn a vehicle that was capable of driving cross country into a dragster.
yea ive done DB drag before. i know how it works. i was wondering about swapping out caps, mosfets and transistors. Ive heard of modifying amps to make them produce more watts before, but my knowledge is very limited in this department.
I think you misread what I wrote.
It's a waste of time if you want an amp that can be used for extended periods of time at the higher power.
Replacing caps is useless in virtually all cases.
It's a waste of time if you want an amp that can be used for extended periods of time at the higher power.
Replacing caps is useless in virtually all cases.
yea. when you replace 1 part you have to replace other parts. i didnt once say specifically that i wanted to just replace the caps only. i know i have to have a finely tuned toroidal coil, aswell as matching transistors and mosfets, but to get the maximum power from any amp i have to focus on the power supply.
also the condescending attitude, you could lose. I wont learn anything necessary to accomplish what im trying to do, if you continue to talk to me like you are some superior high pedestal. im simply here for information. Ive read plenty in the last 24 hours on several other sites, that is abit more helpful, and goes into extensive detail about how to do what im attempting, rather than just telling me its not possible.
also the condescending attitude, you could lose. I wont learn anything necessary to accomplish what im trying to do, if you continue to talk to me like you are some superior high pedestal. im simply here for information. Ive read plenty in the last 24 hours on several other sites, that is abit more helpful, and goes into extensive detail about how to do what im attempting, rather than just telling me its not possible.
How much real power do you think the 499x makes, stock?
How much power do you expect to get from it when modified?
Can you post a photo of the bottom of the amp?
How much power do you expect to get from it when modified?
Can you post a photo of the bottom of the amp?
well it says 1000 watts. but considering the price, i doubt it. Verify your identity
ive mostly repaired this board so far. a few of the mosfets came loose, but i dont have a power supply to test them yet, so i wont know 100% if they are actually fixed til then. I am in the process of aquiring a proper power supply to test the amps i do have.
ive mostly repaired this board so far. a few of the mosfets came loose, but i dont have a power supply to test them yet, so i wont know 100% if they are actually fixed til then. I am in the process of aquiring a proper power supply to test the amps i do have.
No photo?
The amp is rated by pyramid at 125w/ch RMS. The stock 30 amp fuse is a good indicator that it's not more than that.
The terminals feeding the amp are only good for about 30 amps. That's not going to be good for much more than the stock power. How do you intend to get more power into it?
The amp is rated by pyramid at 125w/ch RMS. The stock 30 amp fuse is a good indicator that it's not more than that.
The terminals feeding the amp are only good for about 30 amps. That's not going to be good for much more than the stock power. How do you intend to get more power into it?
its currently disassembled in various parts, as the shell/chassis has alot of rust damage, im repairing those with my automotive knowledge.
no photos at the moment. when its all done, ill upload some.
I could change the terminals if need be, but id need to change the internal components of the power supply to match otherwise its not worth changing.
no photos at the moment. when its all done, ill upload some.
I could change the terminals if need be, but id need to change the internal components of the power supply to match otherwise its not worth changing.
The condition doesn't matter. I wanted to see the size/shape of the heatsink (some was hidden by the sheetmetal).
both the pyramid amps are basically garbage, they sell for like 70$ new. its best that i stop spending time on them. move over to my cerwin vega 7000 mobile. it needs actual repairs. part of the main pcb is missing. so i have to figure out what it looked like originally, and try to replicate/replace that part.