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Thread: Amplifier shock absorbers

  1. #1
    Prayin' to Cheeses hydro's Avatar
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    Default Amplifier shock absorbers

    I am now in a band that is apparently Too Heavy and we keep blowing up amplifiers. Our amp guy suspects part of the problem is that our amp heads sit directly on top of our cabs and the tubes, and possibly other components, are getting out of sorts from too much vibration.

    We play in C standard and we are loud A.F. And no, turning down is not an option.

    Anyone dealt with this issue or have any suggestions as to how to address it? We could set the head cabs on the side but we have limited space plus it's a hassle.
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    Underglazed Hair Metalologist 80's_Metal's Avatar
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    Default Re: Amplifier shock absorbers

    Set the amps next to the cabs, or u can use sound foam between amp and can
    or even short, wide, soft springs around your amp legs/nubs
    Last edited by 80's_Metal; 04-26-2019 at 01:19 PM.

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    LoveMachineologist jeremy's Avatar
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    Default Re: Amplifier shock absorbers

    what part of the amp is failing?

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    A Ficus ehdwuld's Avatar
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    Default Re: Amplifier shock absorbers

    I gots the rubber feetz on my ampz

    Youze can two

    Amazon sells a set of eight 3/4 inch thick rubber feet for about $10-15
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    Default Re: Amplifier shock absorbers

    The place my band plays in has a layer of foam between the head and cabs on tube amps for that reason. Since the amps are prone to....well...being treated like a rented Buick they do all they can to minimize damage.

    The Tech there claims it makes a difference.

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    Ultimate Tone Slacker Nostalgic Distortion's Avatar
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    Default Re: Amplifier shock absorbers

    Take the head off the cabinet, I promise you will sound exactly the same as you do when they are on top.

    Perhaps even better since you won’t have all kinds of vibrations rattling your tubes, Etc...
    I live in Northern New Hampshire, we shoot the things we don't understand here???

  7. #7
    Prayin' to Cheeses hydro's Avatar
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    Default Re: Amplifier shock absorbers

    Quote Originally Posted by jeremy View Post
    what part of the amp is failing?
    A mix of things. Some of the amps had multiple issues, but mostly it seems to be tubes failing often.
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    Prayin' to Cheeses hydro's Avatar
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    Default Re: Amplifier shock absorbers

    I'm going to try some washing machine casters, basically they are big rubber pads. Will see how it goes. May try some acoustic foam too.
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    Default Re: Amplifier shock absorbers

    Don't forget a 3/2 levelling kit and 35's

    Or a cheap used bullbar and some chinese leds at least
    "New stuff always sucks" -Me

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    Ultimate Tone Slacker Nostalgic Distortion's Avatar
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    Default Re: Amplifier shock absorbers

    I’ve got a hot-rodded 5E3 that puts the 6V6’s in through hell because the right tube sits directly behind my speaker with only about 1/2in of space between them. I know, not ideal, I have a V30 in it now but I’ll be swapping it out for a P-12Q the day after tomorrow which will offer much more clearance with the dust cap removed. Anyway I originally just had clamp clips for stability but they were useless with many of the tubes that I wanted to use because they had smaller bases. The way I resolved it was by using both spring retailers & high temp tube dampeners.

    Granted it looks like a bit much but I’ve been running the same NOS Sylvania’s for about 6 months now whereas before I was lucky to get anything other than modern tubes to last more than a couple weeks before they’d start to rattle like crazy so I think it’s worked for the most part? Before even modern tubes that had being fat bases & fit inside the clamps would start to rattle after a month or so....
    I live in Northern New Hampshire, we shoot the things we don't understand here???

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    Mojo's Minions Gtrjunior's Avatar
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    Default Re: Amplifier shock absorbers

    Maybe a dumb question, but is your bias set correctly? Nothing will eat up tubes faster then a too hot bias.

  12. #12
    BadHairDayologist Empty Pockets's Avatar
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    Default Re: Amplifier shock absorbers

    Sounds like you're using ****ty amps that break

    Maybe get some good ones instead
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    A Ficus ehdwuld's Avatar
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    Default Re: Amplifier shock absorbers

    I suspect a bias problem as well
    EHD
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    SR500 / Martin 000CE-1/Epiphone Hummingbird
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    Ehdwuld branded Blue semi hollow custom with JB/Jazz
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    Default Re: Amplifier shock absorbers

    i have lots of experience with these issues.

    First I would suggest that the more likely culprit is amplifier transport -because bumps in the road that jolt the element in a tube is 1000x worse than your amp being on the head.

    How often and how do your transport you amps?
    “For me, when everything goes wrong – that’s when adventure starts.” Yvonne Chouinard

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    Mojo's Minions Gtrjunior's Avatar
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    Default Re: Amplifier shock absorbers

    Quote Originally Posted by NegativeEase View Post
    i have lots of experience with these issues.

    First I would suggest that the more likely culprit is amplifier transport -because bumps in the road that jolt the element in a tube is 1000x worse than your amp being on the head.

    How often and how do your transport you amps?
    Good point.
    I have also noticed that the vast majority of bumps and bruises my gear sustains is due to transport

  16. #16
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    Default Re: Amplifier shock absorbers

    Quote Originally Posted by Gtrjunior View Post
    Good point.
    I have also noticed that the vast majority of bumps and bruises my gear sustains is due to transport
    Yeah, agreed -if you transport an amp in a car with s stiff suspension or bad struts and shocks you can really do a number on your amp over time. Anytime I ship expensive amplifier and vintage studio equipment -I specify carriers with air ride truck suspensions or a "white gloves" shipper who specializes in this. Otherwise, they will get beat to hell. I used to haul amps across the country and back in 3-8 hr rides between each gig -thats when it really gets bad.

    Though tubes are not the only components that die over time from vibration -they potted into solid state all of the Apollo capsule components for a reason -too much vibration or hits are bad -especially caps and solder points on perf.

    Also -putting an amp on it's side or back where the tubes are horizontal is bad -because gravity is making the upper sockets which are away from the fulcrum point pull down and out at a different angle from the lower pins being pushed in -at the fulcrum point -which over time in a long ride with normal jolts in the car/truck cause the socket to open very slightly -not to mention creates deflection on the pins -which over a long time creates issues. Pulling tubes is a great practice -but I get that it's not practical for regular daily practice.

    If you are going to a gig, stand your amp on a small block of foam or even a blanket in a pinch or in the seat, if you want to better mitigate long term wear. -Anything to de-couple the tubes from the bumps and jolts of the car chassis.
    “For me, when everything goes wrong – that’s when adventure starts.” Yvonne Chouinard

  17. #17
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    Default Re: Amplifier shock absorbers

    Also OP, your AMP being on your head during a gig is actually decoupling the vibration from the PA and Drum Set -which are a bigger issue if your head is directly on the stage (depending on the stage of course) -If anything you want your head on your Amp rather than on the stage directly -or on something else on the stage and not direct -your guitar amp vibrations are likely no the source of all your issues -the drums and sound reinforcement present a larger risk in many ways.

    Buy some memory foam and put a few inches between your amp and head feet or buy some turntable feet isolation pads on Amazon and set your amp on those.
    “For me, when everything goes wrong – that’s when adventure starts.” Yvonne Chouinard

  18. #18
    Mojo's Minions
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    Default Re: Amplifier shock absorbers

    Sorbothane isolators may help.

  19. #19
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    Default Re: Amplifier shock absorbers

    Quote Originally Posted by Darg1911 View Post
    Sorbothane isolators may help.
    Those look great





    “For me, when everything goes wrong – that’s when adventure starts.” Yvonne Chouinard

  20. #20
    Underglazed Hair Metalologist 80's_Metal's Avatar
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    Default Re: Amplifier shock absorbers

    Has anyone suggested a road case yet?

    I second the whole "check your bias" thing.

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