The sound of chassis? - Page 11 - diyAudio
Go Back   Home > Forums > Amplifiers > Tubes / Valves

Tubes / Valves All about our sweet vacuum tubes :) Threads about Musical Instrument Amps of all kinds should be in the Instruments & Amps forum

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 7th January 2003, 02:44 AM   #101
ststone is offline ststone  United States
diyAudio Member
 
ststone's Avatar
 
Join Date: Jul 2002
Location: Marriott Assisted Living, Boca Raton, FL
Between you and me I would rather have a west malle, next to the convent, where they rest and water the horses... ahh the mossels and bear. You have to look @ SY's webplace.

Guys wake up There is more to live
__________________
alleen vragen
  Reply With Quote
Old 7th January 2003, 02:55 AM   #102
diyAudio Senior Member
 
fdegrove's Avatar
 
Join Date: Aug 2002
Location: Belgium
Default NOSTALGIA

Hi Steve,

All of that beauty is slowly but surely disapearing sadly.

Incidentally it was a Westmalle I was having...I don't hold my hopes up too high for the mussels next year either with all the oil spillages we've been having on the Nortsea.

Still I count myself lucky to live in one of the most beautiful parts of the country.

Quote:
You have to look @ SY's webplace.
You didn't think for a minute I hadn't, did you?

Cheers,
__________________
Frank
  Reply With Quote
Old 7th January 2003, 01:35 PM   #103
diyAudio Member
 
mrfeedback's Avatar
 
Join Date: Feb 2002
Location: Perth, Australia.
Default Party Cones ?.....

"I am afraid it would make the whole thing tilt sideways when loaded"
Taking a look at the picture should clarify things.
Placing or glueing a cone to one end of the springs would give single contact points and not compromise lateral stability imo - the cone needs to have a suitable base diameter, or machined with a step so as to locate the cone centrally on/under the spring end.
Valve spring retainers discs are ripe for placing a marble or steel ball, or custom machined cone, in the central hole, and with or without the spring.
This Spring Specifications Chart should give you more information.

"What I had in mind is a metal triangular frame with three predrilled holes in it and then fix the springs underneath with bolts to support heavy cabs.
The top should then fit flush underneath the cabinet."


I am toying with ideas regarding fixing four springs to a heavy board that has four hard feet underneath, and the bottom cabinet mounted directly on the tops of the springs, with or without retainer discs, and maybe with balls on top of the retainers.
The combined weight of my mates bass rig is pushing 300 lbs - each cab is about 120 lbs, and the amplifier about 60 lbs, and the other day when using four springs, the compression of the springs was about 1 cm, and the whole lot rocked gently but safely when prodded.
I do not want the cabinets to sit directly on a board at this stage, because the altered cabinet panel vibrational modes and the additional mass would reduce or modify at least, the pretty much total isolation that I am getting - perhaps the cabinet mounted on the board (cones underneath) is better and is another experiment in this series for the near future.

"In that way the springs won't get lost in transport and a product could be put out to the market after further development."
The cogs upstairs were already turning over with ideas for more elaborate (more woodwork mostly) versions that could be safer and more practical and able to survive the average muso or crew, but I am/we are still at the first live show experiment stage.
Other versions currently in thought form are ones for isolation of tube amplifier heads from the cabinet that they are usually placed upon.
The venue the other day was a daggy cement block constructed pub out in the middle of nowhere with fantastic virgin bush views inland and to the coast, an outside beer garden with permanent stage, and large public bar area with 10" high stage at one end, and about 50 patrons total, inside and outside.
The PA was an old EM series Yamaha self powered desk, 2 x 18"subs and 2 x15" full range cabs for FOH, and 3 12" FR cabs as monitors, and the FOH PA used only for vocals - about as unplugged as you're gunna get for a blues 3 piece.
The guitarist ran a Marshall quad box and big Marshall amplifier, that unfortunately needed turning down, mainly because the sound of his rig does not quite sit right with the bass or drums.
After John (the bassist) and I fitted the springs, he found that he needed to alter his eq and needed to turn up a bit, and that the feet feel through the stage was quite different
After two songs I signalled him to turn up a bit more.
His initial comment was that the bass seemed a bit diminished, but after that one bracket he reported that he found his rig to have better attack/slap, dynamics and articulation, and more power, drive and more musical - after 45 minutes he liked it a lot and wants to explore it further too - he also wants me to fix up "that damm lead guitar sound" when we have given his complete bass rig the once over - cables, speaker Z correction networks etc - electronics later.
With the bass turned up a bit but not all that much, the drummer turned up too, and the two cohered sonically really well - better than I've heard previously.
Sitting in a pretty much empty lounge bar room with large area of doors to the outside, the drum/bass combination was really seriously strong and clean, really clean, and strongly excited the soles of my shoes on the thinly carpeted cement floor - the table that we were sitting at was vibrating strongly but nicely too.
My GF also commented that that the sound was seriously loud, but did not sound hurtingly 'LOUD', and that she liked it too.
She is now even becoming picky with sounds - before she met me 5 years ago she lived with a cheap rotten system - now that she is living with much better audio and visual, she is becoming rather more discerning and good thing too.
There is of course more experimentation to be done, but so far older ears like the resultant sound and young ones too - during the last 45 minute bracket about 8 kids from 6yo and down, boys and girls had a great time dancing in front of the stage.

"I don't dwell in those circles anymore but since you do? "
The word gets around that I can reliably fix their gear, so they come to me - last sunday the show was about 6km from my GF's place so that seemed like a good thing to do.

Eric, The Recalibrated Live Unplugged Ears.
__________________
I believe not to believe in any fixed belief system.
  Reply With Quote
Old 7th January 2003, 01:37 PM   #104
diyAudio Member
 
mrfeedback's Avatar
 
Join Date: Feb 2002
Location: Perth, Australia.
Default Oooops....

The pictures I promised...
Attached Images
File Type: gif springs.gif (22.0 KB, 242 views)
__________________
I believe not to believe in any fixed belief system.
  Reply With Quote
Old 7th January 2003, 02:27 PM   #105
Joel is offline Joel  United States
diyAudio Member
 
Joel's Avatar
 
Join Date: Oct 2002
Location: Brooklyn, NY
Nice bedsprings.
  Reply With Quote
Old 7th January 2003, 02:42 PM   #106
diyAudio Member
 
mrfeedback's Avatar
 
Join Date: Feb 2002
Location: Perth, Australia.
Default Built For Speed.....

Joel. those springs are rated at around 250 lbs/inch - are you saying that you are into 'comfortable' women ?

Eric.
__________________
I believe not to believe in any fixed belief system.
  Reply With Quote
Old 7th January 2003, 02:55 PM   #107
Joel is offline Joel  United States
diyAudio Member
 
Joel's Avatar
 
Join Date: Oct 2002
Location: Brooklyn, NY
I like 'em round, and big - when I'm throwin' a gig.
  Reply With Quote
Old 7th January 2003, 03:07 PM   #108
diyAudio Member
 
mrfeedback's Avatar
 
Join Date: Feb 2002
Location: Perth, Australia.
Default Preferences...

"I like 'em round, and big"
You mean fat.
Reminds me of a tour I did a few years ago - after a few shows, due to female audience response it got renamed 'The No More Fat Chicks Tour'.

Eric, The Likes Them Trim.
__________________
I believe not to believe in any fixed belief system.
  Reply With Quote
Old 9th January 2003, 11:32 PM   #109
diyAudio Member
 
mrfeedback's Avatar
 
Join Date: Feb 2002
Location: Perth, Australia.
Default Manna From Heaven...

I got more springs yesterday (for free), so now I have enough to place 3 under each speaker, amplifier and cdp at home (in addition to the ones that I am using at work).
Under the cdp makes an immediate nice improvement - more relaxed sounding and more detailed and more musical overall.
I just thought somebody might like to know........

Eric.
__________________
I believe not to believe in any fixed belief system.
  Reply With Quote
Old 9th January 2003, 11:39 PM   #110
diyAudio Senior Member
 
fdegrove's Avatar
 
Join Date: Aug 2002
Location: Belgium
Default WHERE'S THE AUDIENCE GONE TO?

Hi,

Quote:
I just thought somebody might like to know........
I know the feeling...

Cheers,
__________________
Frank
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Eighteen Sound (18 Sound) NSD 1095N Compression Drivers and XT1086 Horns opc Swap Meet 6 1st May 2009 03:48 AM
What d'you put in the PSU chassis, and what in the circuit chassis? andyjevans Tubes / Valves 5 14th December 2007 11:41 PM
How to star ground to Chassis without a Chassis?? Minion Chip Amps 10 5th November 2006 04:28 PM
FS Gainclone Great Chassis, Potted toroidal, great sound PHilgeman Swap Meet 4 2nd May 2006 01:20 PM
Where to get chassis or chassis parts in Vancouver? Prune Parts 1 7th July 2004 05:37 PM


New To Site? Need Help?

All times are GMT. The time now is 08:09 AM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2