No I wish I had known how to do that. A freind help me build the box and he didn’t help me enough it’s possible it needs extra bracing too but the sub is stuck in a bedroom I cannot take the amp off right now. Pics . The cord kept falling off I had to glue it on.
I have no idea why those stickers got there either . Weird … total waste of them.
Look at this old sub. The back of the box ends , sealed, with an enclosure for the amp .
With the box already made its kind of hard without having to take it apart and re build it.
Easiest thing that you can do is get a piece of wood , mdf , plywood , at least as thick as the wood that the box is made of and glue it , screw it on the back of the sub , instead of the plate amp. And make a small enclosure for the plate amp that you screw on the back of the sub , it will stick out , not elegant but works.
To do it right you ll have to take the back piece of wood from the enclosure, cut another piece that fits inside the sub walls, 10 cm or so deep , depends how big the plate amp is , secure that. And glue again the piece you have now , where the plate amp sits
With the box already made its kind of hard without having to take it apart and re build it.
Easiest thing that you can do is get a piece of wood , mdf , plywood , at least as thick as the wood that the box is made of and glue it , screw it on the back of the sub , instead of the plate amp. And make a small enclosure for the plate amp that you screw on the back of the sub , it will stick out , not elegant but works.
To do it right you ll have to take the back piece of wood from the enclosure, cut another piece that fits inside the sub walls, 10 cm or so deep , depends how big the plate amp is , secure that. And glue again the piece you have now , where the plate amp sits
Attachments
Nice build !
I might try lowering the gain to half and see if the rattling is less. But this sub driver is too powerful for the not well enough built box I should had ported it. Or got a weaker driver.
I don’t know if it’s possible to add them later on without internal support for ports or they might wobble? What a catastrophe. Either way I can’t do it right now. I could find old pics of the inside of the box but either way it’s not enough bracing. Still doesn’t explain why the amp would rattle so much. For all I know the box is fine.
The driver model
Stereo integrity
si ht15 dvc
Well he said the amp rattles. So not the speaker? Is it the sound coming out of the speaker?
Before starting to fix something it is probably useful to know what it is that needs fixing 😎
Jan
Before starting to fix something it is probably useful to know what it is that needs fixing 😎
Jan
It seems like the louder it gets the more the internal pressure rattles the sub plate amp. When I turned it down lower it wasn’t as bad. I checked and the screws seem pretty tight. Could they be too tight??
Yes! Of course...
This implies a shorter RCA cable and a longer speaker cable.
The mains plug/receptacle can be skipped too.
You say it is the plate amp that rattles. So it is not useful to try to 'fix' the box or speaker.
There could be some parts on the plate amp that are a bit loose, that are rattling.
It must have brackets and boards and stuff that is mechanically mounted on the inside of the plate.
I would open up the plate amp unit and check for mechanical parts that need to be tightened.
Could even be an internal piece of cable rattling against some other part.
Jan
In that logic the problem would not occur when taking the amplifier from the loudspeaker box as it could be the amplifiers PCB/parts rattling against the wood. About the first thing one should check. Just 10 screws and OP will know.
Tightening screws again and again usually means worn out thread or screws that can not be tightened anymore. Too tight is just not OK. Doing the same thing twice and expecting a different outcome will not give satisfying results either. One should do a good first diagnosis before action and carefully describe the undesired phenomenon to others when wanting help. Many that are here are used to more exact phrasing as we deal with native English speakers. Rattling can be many things. Compare it with going to the doctor and saying you have pain.
* To avoid fire because of possible bad contacts (the plug can not fall out when contact pressure is OK) one should of course replace the IEC inlet and its cable. Glueing plugs to mains connectors is not OK.
Tightening screws again and again usually means worn out thread or screws that can not be tightened anymore. Too tight is just not OK. Doing the same thing twice and expecting a different outcome will not give satisfying results either. One should do a good first diagnosis before action and carefully describe the undesired phenomenon to others when wanting help. Many that are here are used to more exact phrasing as we deal with native English speakers. Rattling can be many things. Compare it with going to the doctor and saying you have pain.
* To avoid fire because of possible bad contacts (the plug can not fall out when contact pressure is OK) one should of course replace the IEC inlet and its cable. Glueing plugs to mains connectors is not OK.
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Exactly. Why people don't look at the evidence before drawing conclusions is something that continues to amaze me.
Jan
Jan
🙂 I bet you got it explained with the "hammer/hand" model in your youth/education too. In general to me (and others I am sure) the smart phones and modern education do not seem to have brought an improvement to logical thinking and cause/effect reasoning.
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I’ll try and loosen them a little bit and test it out then. I don’t know if I can test it out today or not but I’ll get around to it eventually. I’ll try half gain on the sub also.
Ok so remove it to check if anything is loose inside ?
Wouldn’t it had caught fire by now?it’s been like that for years.
I don’t think it’s possible to remove from the cable I’d have to buy a new amp. It’s pretty hard gorilla super glue i can try and remove some of it but even with pliars I cannot rip the plug out?
Pretty much the only sensible thing to do. Separate amplifier and loudspeaker and test/check if either one rattles and what is causing it. Put them together without screws and check if stuff then rattles. And why and how to solve. Tip: check the speaker itself if its magnet has attracted a metal object.
Replacing that glued IEC inlet is an easy job when the amplifier and loudspeaker are separated. Just unscrew the nuts at the backside. It is too much of a risk to leave it like it is. Connectors and cables should never be glued. When unreliable/wornout just replace stuff.
Replacing that glued IEC inlet is an easy job when the amplifier and loudspeaker are separated. Just unscrew the nuts at the backside. It is too much of a risk to leave it like it is. Connectors and cables should never be glued. When unreliable/wornout just replace stuff.
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You say turning it down to halfway lessens the problem. Exactly how loud are you running this thing? Are you driving the speaker beyond its limits, is it hitting the grill? As said above you have a lot bits you should fix on this sub.