|
Audio Asylum Thread Printer Get a view of an entire thread on one page |
For Sale Ads |
70.197.5.173
In Reply to: RE: Time to move on posted by 4everyoung on July 19, 2016 at 08:54:22
The price of brass ingot is $1.80 and the aprox. price of 3in. round bar from Sequoia metals is about $6.57lb. This is down from over $9 if I remember correctly. One foot of 3" rod is 26lbs. See what we're up against? If one could find some surplus pieces of like 2.25 or 2.5" at a good price that might be worth it. Pierre , in this case, didn't go through all that work for nothing. Tweaker
Follow Ups:
My nephew would order the brass through the shop he works for and that would be my cost. But you're right I should try a few small footers first.
I also need new tubes for my Novacron amps. I wish he could make those, too. Cheapest price I found was $59 each and I need 8.
Now back to the GOP convention. I may have to move to New Zealand come November.
Sue Kraft
The Audio Beat
thingies that have been posted about in the past six months, or so.
They seem to be quite similar to those sold by Mapleshade, and from what I've read they cost less than a buck each.
If the weight ratings jive (they have various versions) with your "quite" heavy amps I'd start with two near the corners of the board supporting the transformer(s) side of the amp and then a single one placed center/edge wise on the lighter side of the amp.
Just place your amps on the boards using their original footers (the ones that I assume the amps were voiced with) and give it a go.
Not a cone fan, though I do use a single Mapleshade brass cone as a record weight on my Thorens deck (it's affixed upside down to a Thorens 45/single adaptor) and it sounds super in this application.
Yes, I heard about the isoblock lookalike thingies. Where do I get them for a buck? I suppose I can try to find the thread.
Thanks
Sue Kraft
The Audio Beat
Look to the right of the page for the cork version.
I've also seen thicker ones in the past, but didn't look through the site.
I try not to place gear too close to the floor because of dust & also static electricity (if synthetic fiber carpet and/or rugs are involved).
If you have six of the old metal cones left try them as well.
Never experimented with gear in the 50-60 lb range, so don't know what to expect with either type of (soft/hard) footers.
OT (or maybe not;-)
Didn't find it on Google, but in the late 60's there was an "astral wash" theory going around.
The jist of it was that it was healthier to sleep a minimum of 12" above the floor (thin mattresses of the time placed directly on a floor were considered to be a health hazard).
The reason being that cosmic particles (bombarding everything) bounced/reflected back off of surfaces (a denser surface = more bounce back) and this bounce back (of cosmic particles) was disruptive in nature.
Perhaps Geoff can add more light as to how this might be crucial to the well being of your mono block amplifiers.
A friend of mine says he will split the cost on a box of those anti vibration pads AND my nephew says no problem on the brass footers. He thinks there's enough scrap brass to make 2 sets for free. I'm a happy camper. Thanks to all for the feedback.
Sue Kraft
The Audio Beat
I made the mistake (many years ago) of placing brass cones directly coupled to an Audion SET amp and they acted like little "Hot Plates" supporting the unit.
They drained the heat, but they also stored/maintained the heat (feeding it back into the bottom plate of the amp).
I'm not stupid, but my decision to do this @ the time was most certainly a dumb one.
I'd like to chalk it up to a med I was taking (depikote, or something like that), but that would be the easy out as my actions were clearly clueless.
I'm not sure of the exact design, but there won't be any pointy things on the bottom.
Sue Kraft
The Audio Beat
You punish yourself your way and I'll punish myself my way. I am not quit as self flagellating as you, I can see. Guess what, no woodpeckers in NZ. Those are some amps. You got more guts than me. Boy (girl) does that guy pay close attention to what he is doing. Bet they are fab. Tweaker
Edits: 07/19/16
While there may not be woodpeckers in NZ, I'm told they have "hidden people" living in the rocks. How cool is that?
Sue Kraft
The Audio Beat
Sue, What is not cool, of course IMHO, is even thinking about putting those stupid rubber cork rubber feet under one of the most expensive, well thought out, well reviewed , expensive amps in the known universe, personally chosen by you, someone with vast exposure to equipment, when there is EAR C-1002, considered "incredible" by the designer at Genisis, a winner of a best speaker of the year award. T
Edits: 07/20/16
Is the EAR-1002 similar to Dynamat? (Couldn't think of the name the other day.) Dynamat has foil on one side and some sort of sticky goo on the other. I'm asking because Amazon carries Dynamat.
Sue Kraft
The Audio Beat
Michael Percy has small amounts of EAR. It might be interesting if you read the technical info EAR has on their C-1000 product. Percy says it's excellent, Genisis's CEO, winner of a best speaker of the year award says it's incredible , I love it and The One Who Must Not Be Named doesn't like it. I rest my case. Dynamat is also viscoelastic. The proof is in the pudding. T
Edits: 07/21/16 07/21/16
The logical approach would be to first determine how basic compliant and noncompliant type footers sound in the particular application (using @ hand or inexpensive materials) and then go from there.
What is your first hand experience with 50-60 lb tube amps to be so opinionated?
Post a Followup:
FAQ |
Post a Message! |
Forgot Password? |
|
||||||||||||||
|
This post is made possible by the generous support of people like you and our sponsors: