Big and strong enough to put one of those 90s Krell amps on
And Amir can use it on his feet when typing his reviews
And Amir can use it on his feet when typing his reviews
That's the path I was on until folks talked me out of it! Then link you have is very cheap but it doesn't have programmable frequencies like the $400 one I found. These are all electromechanic (motor based) which are used to generate large displacements. We are looking for very small amount of that so I decided to go with electromagnetic ones (speakers).Big and strong enough to put one of those 90s Krell amps on
And Amir can use it on his feet when typing his reviews
He'd demand scheduling, budget/funding, manpower and more.A little project management can avoid unnecessary work and frustration too.
A vibrator with different vibration patterns would be even better, but you would get mail.This has been on my todo list since i started the forum! The blocking item is a vibration mechanism with predictive response so I can look for its response in the gear measurement. I thought about a custom one or using a subwoofer. If anyone has any ideas, let me know.
We will soon find out, hopefully.And cassette decks, tuners, many phono stages, pretty much all tube gear and even some integrated and pre amplifiers. So yeah, a few things...
Been a pilot for almost 50 years, and have had airplanes with radios of every type, tube (the same signal tubes in phono stages and preamps), solid-state, UHF, VHF, AM (ADF), GPS, etc. Nor any impact on the passenger A/V system, VHS, DVP, cassette decks satellite radio. Vibration is 1,000 times more intense than in a living room, with no impact on audio quality. No difference with engines off, engines at idle, or full/takeoff power.
He'd demand scheduling, budget/funding, manpower and more.
He would also request a Mechanical Engineer dedicated to the program.
The ME should know the difference between a MEMS accelerometer and a gas pedal!
I'm happy to see that the test is actually becoming a reality!
The purported problem of vibration with audiophile electronics has never made sense to me. It's not just that a cogent technical explanation is rarely put forth; I also wonder just how much vibration audiophiles imagine is happening in their gear? I presume it's supposed to come from the sound itself, from the speakers. Which would implicate mostly shaking from bass waves. But of course audiophiles won't confine the sonic benefits of their new isolation shelf or footer to just heavy bass tracks. Those "improved, smoother highs" will be cited across all music tracks, whether heavy vibration from the bass is likely to be implicated or not. There's no coherent theory that I can see.
My source equipment is all in another room down the hall from my listening room, so it's not affected by the speaker signal. No need for footers I guess, as I must have an enviably "black" noise floor.
And cassette decks, tuners, many phono stages, pretty much all tube gear and even some integrated and pre amplifiers. So yeah, a few things...
I would think physicaly hitting something is orders of magnitude more force than a sound wave. Was about to say, why not use a big speaker at high SPL. That would be real world testing. Keep the gear far enough away that any stray magnetic fields from the speaker dosn't creep into the measurements (or use mag. shielded speakers).That's the path I was on until folks talked me out of it! Then link you have is very cheap but it doesn't have programmable frequencies like the $400 one I found. These are all electromechanic (motor based) which are used to generate large displacements. We are looking for very small amount of that so I decided to go with electromagnetic ones (speakers).
By this do you mean isolation of the speakers? What is the floor construction of your home?What can be audible is vibrations transferred from speakers to other structures in the room, where isolation sometimes works.
Yes isolation of speakers.By this do you mean isolation of the speakers? What is the floor construction of your home?
The only thing that is affected by vibration are turntables and tube amps, and the latter only with heavy vibrations (earthquake like) i think.Old cd players may also skip when the vibrations are to big (but again, earthquake like vibrations are needed for that).
It sounds like you would get ultimate use out of a mobile, gyro-stabilized DJ turntable cart that uses magneto-hydraulic shocks w/auto vibration sense/cancel algorithm integral to the suspension system.I actually have my tube amps sitting on thick furniture sliders. Two main reasons: It allows me to easily slide the amps forward or back, to get at cabling when necessary or tube changing. But also, one of them is on the wood floor (old house) and, hand on amp, I can feel tons of vibration on the amp from footsteps, especially my huge son walking by. The thick footers seem to do a really good job at mitigating the floor vibrations getting to the amp from the footsteps. My concern isn't sonics, but just that there seems to be enough fine bits and pieces in those tubes, filaments etc, that it seems I don't want that shaking around too much in terms of wear of possibly something shaking loose, if I can help it.
Two 19 x 16 Vibraplane Active Isolation platforms is your answer. Only $2,500 each (air pump not included), BUT, they really work, really isolate, really kill vibration.My concern isn't sonics, but just that there seems to be enough fine bits and pieces in those tubes, filaments etc, that it seems I don't want that shaking around too much in terms of wear of possibly something shaking loose, if I can help it.
Min. Load @ 20 psi | |
Vertical Natural Frequency | 2.3 Hz |
Isolation Efficiency @ 5 Hz | 52% |
Isolation Efficiency @ 10 Hz | 83% |
Horizontal Natural Frequency | 2.9 Hz |
Isolation Efficiency @ 5 Hz | 40% |
Isolation Efficiency @ 10 Hz | 92% |
Max. Load @ 80 psi | |
Vertical Natural Frequency | 2.1 Hz |
Isolation Efficiency @ 5 Hz | 70% |
Isolation Efficiency @ 10 Hz | 91% |
Horizontal Natural Frequency | 1.8 Hz |
Isolation Efficiency @ 5 Hz | 81% |
Isolation Efficiency @ 10 Hz | 95% |