Stringreen Posted August 29, 2021 Share Posted August 29, 2021 I tried some soft rubber thingies under 5A's.....quite a step backward. There is quite a stir for Townshend nevertheless . My flooring is Travertine tile cemented to the solid foundation of the house. Link to comment Share on other sites More sharing options...
Richard Vandersteen Posted August 29, 2021 Share Posted August 29, 2021 I have tried to duplicate Townshend's test results but was unable to measure the amount of movement of the floor in the lab or my home (was unable to sinc the test with a earthquake even though I am in Calif). Both locations are concrete floors directly on the ground. If ones floor has significant tympanic movement from some source (music, subway, train, freeway ,etc) spring isolation tuned to a very low frequency may allow the speaker to more accurately pressurize the room with music's information. It my rooms it caused dynamic compression and smearing because the speaker enclosure moves. It does make the sound less bright and the sound stage gets more diffuse (larger but less defined) which may sound better with some speakers especially if like most speakers the tweeter is too bright. The ultimate goal is for the speaker to be held in space as rigidly in space as possible so that any movement in any of the speakers drivers is not modified but a facsimile of what came from the amplifier. Like usual this will vary in different situations but in IMO 3 points works best in most situations. RV Link to comment Share on other sites More sharing options...
GdnrBob Posted August 29, 2021 Share Posted August 29, 2021 I bought a pair of Platforms to try under my Treo's, unfortunately the outrigger feet made them unusable as my speakers are placed in a rather confined area. Nut! So, a quick email to Townshend yielded a response- You can use them under any equipment-if they are within the weight limits. So, under my Ayre KX-R one of them went, the other under my Atma MP-1 (with a piece of Butcher Block to raise it to clear the knobs-of course it was 1/4 inch, too small). In both cases, I notice a definite 'refinement' of the lower bass notes. Things sounded 'clearer'/ less muddied. I really like Townshend products. They are constructed to high standards and look pretty nice, too. I wish I could report on their effect on speakers, but, alas, it was not to be. Bob Link to comment Share on other sites More sharing options...
TomicTime Posted August 30, 2021 Share Posted August 30, 2021 for TT and electronics HRS, look at most IF not all Vandy show awards and you find HRS at work…. Made in USA by great engineering talent with ears. Link to comment Share on other sites More sharing options...
TomicTime Posted August 30, 2021 Share Posted August 30, 2021 hey Bob - I have $ for shipping, insurance and a rental fee IF i can evaluate under my Treo CT w lightweight concrete floor, 9 ply glued down engineered hardwood and an impact strike foam / rubber / felt acoustic isolation layer. I can assemble a panel of fellow Reo CT owners who have heard my system. Fun Jim Link to comment Share on other sites More sharing options...
GdnrBob Posted August 31, 2021 Share Posted August 31, 2021 @TomicTime, If I can muster the energy to take the preamps off, then, sure, I'd be willing to give it a go. And, if I can muster the energy to book a flight to CA, then it would be even better! Bob Link to comment Share on other sites More sharing options...
TomicTime Posted September 1, 2021 Share Posted September 1, 2021 book the flight Bob ! leave the springs at home RV says the bars will honk up the bottom firing port unique to Treo. Link to comment Share on other sites More sharing options...
stratocaster Posted September 1, 2021 Share Posted September 1, 2021 5 hours ago, GdnrBob said: And, if I can muster the energy to book a flight to CA, then it would be even better! Bob I thought you said you were visiting us in SD this winter..hope you are not getting cold feet ....😀 Link to comment Share on other sites More sharing options...
TomicTime Posted September 1, 2021 Share Posted September 1, 2021 1 hour ago, stratocaster said: I thought you said you were visiting us in SD this winter..hope you are not getting cold feet ....😀 as we get ourself established back in SoCal in Fall, i will put together that Vandy owners gathering… don’t let me off the hook… 1 Link to comment Share on other sites More sharing options...
GdnrBob Posted September 1, 2021 Share Posted September 1, 2021 The Treo's have a bottom port? - I never knew. I was going to send you the Platforms for under the Treo's- would they also mess up the port? I can't see how as they would be the same distance as the floor would have been, but, hey, I'm not a speaker designer. Funny you should mention the Townshend Bars. I put them under my Sub 3's Normally, I wouldn't, but my monoblocks reside on a Sound Anchor rack that is bolted to the wall. It allows me to stack my amps and use the bottom for my subs. I figured that isolating any vibrations from the subs to the amps would be a 'good thing'. I want to put some Townshend Pods under the amps, but it is a bit complicated due to how the Sound Anchor shelves are configured. In any case, John Rutan/Samir set everything up and got them dialed in as best as possible. (In fact, Johnny really liked the set up. It really saves space-which is something I don't have). @stratocaster. I hope to get out there, but with Covid, and all this weird weather, who knows for sure? NY has had one of the wettest and most humid summers I can recall, God only knows what is in store for us in the coming months. Bob- Waiting for the remnants of Ida to come- 4 inches of rain overnight? Link to comment Share on other sites More sharing options...
Steve Edwards Posted September 2, 2021 Share Posted September 2, 2021 We’ve got good friends in Boston and have been keeping up on the weather back there. Sending cooler & drier vibes your way Bob. Link to comment Share on other sites More sharing options...
ctsooner Posted September 2, 2021 Share Posted September 2, 2021 Lots of flash flooding around us in CT. What a year. I am trying to do a reunion this winter in SD for my former Kitty Hawk shipmates. If I get it done, I’ll let you guys know. I really would love to drive up to Hanford to visit Richard on that trip if I can put it together. Link to comment Share on other sites More sharing options...
GdnrBob Posted September 2, 2021 Share Posted September 2, 2021 I ended up with 6+ inches of rain- which came down in roughly 2 hours. Luckily, just a wet garage was the worst of it. (I shudder to think how bad it is in New Orleans). @ctsooner, Do you have an idea of when your reunion will take place? It would be fun to meet up, as well as get to meet other forum members. B Link to comment Share on other sites More sharing options...
TomicTime Posted September 3, 2021 Share Posted September 3, 2021 Let me know, i have some ideas…but dates matter Link to comment Share on other sites More sharing options...
ctsooner Posted September 3, 2021 Share Posted September 3, 2021 no idea right now. We are trying to find out guys schedules as some are in FL, Northern CA, CT, Chicago and a few other states and countries. I'll keep you all posted to see if we can make something happen. Link to comment Share on other sites More sharing options...
John Gallup Posted September 6, 2021 Share Posted September 6, 2021 On 9/2/2021 at 2:15 PM, GdnrBob said: @ctsooner, Do you have an idea of when your reunion will take place? It would be fun to meet up, as well as get to meet other forum members. Count me in for a Vandersteen owners' meetup if you're willing to accept an AF vet. Pretty sure Bruce could host it at Stereo Unlimited. 1 Link to comment Share on other sites More sharing options...
Holmz Posted September 6, 2021 Share Posted September 6, 2021 I may be in San Diego in Dec/Jan. Debating between there and around Moro bay depending on what the kiddies want to… Link to comment Share on other sites More sharing options...
Stringreen Posted September 11, 2021 Author Share Posted September 11, 2021 On 9/6/2021 at 5:43 AM, Holmz said: I may be in San Diego in Dec/Jan. Debating between there and around Moro bay depending on what the kiddies want to… No one ever comes to Scottsdale, Az.......is it the weather? Link to comment Share on other sites More sharing options...
ctsooner Posted September 11, 2021 Share Posted September 11, 2021 I have gone there a bit over the last 10 years, lol. Great place. Link to comment Share on other sites More sharing options...
TomicTime Posted September 11, 2021 Share Posted September 11, 2021 String - i spent a lot of time in Mesa helping build attack Helo and every January at our “ seance in the desert in Scottsdale. Would be great to get together if you make it to San Diego this winter. best to you Jim Link to comment Share on other sites More sharing options...
Holmz Posted September 11, 2021 Share Posted September 11, 2021 1 hour ago, Stringreen said: No one ever comes to Scottsdale, Az.......is it the weather? Actually that is not a bad idea… We did do Canyon De Chelly a few XMAS’s ago. I found out that the ground work done to have a legal scheme to get back into Au, may be thwarted by Qantas and others not having scheduled flights. So the trip is up in the air (but not literally), as the planes are generally grounded. At the local airport there must be a hundred air craft (most foreign) lined up like a car rental yard. The SW US could have a few of these places as well? Maybe there is a cruise ship😉 Link to comment Share on other sites More sharing options...
GdnrBob Posted September 13, 2021 Share Posted September 13, 2021 @TomicTime, Looking at your post on another tread that showed you 7's next to the Vandy Amps, I wonder if putting the Townshend Platforms under those might be another trial? Though, It would depend upon the weight...-Platforms come in various weight load capabilities. B Link to comment Share on other sites More sharing options...
Richard Vandersteen Posted September 14, 2021 Share Posted September 14, 2021 The M7-HPA amplifiers have a truss that holds all of the active circuitry which are suspended with four HRS isolators (polymer springs) tuned to isolate the active devices from external vibrations. One should never put two springs in series as they can provide up to 30 db of gain instead of 30 db of isolation! Use caution. RV 1 Link to comment Share on other sites More sharing options...
TomicTime Posted September 14, 2021 Share Posted September 14, 2021 Like RV said, springs on springs rarely ends well…. The HRS isolation are the blue “ donuts “. Note the photo is of the amp “ locked “ in the shipping position… 2 Link to comment Share on other sites More sharing options...
GdnrBob Posted September 14, 2021 Share Posted September 14, 2021 Ohh. Like Johnny Carson used to say: 'I did not know this'. @TomicTime, So, when unlocked, do your blue donuts jiggle?😆 B Link to comment Share on other sites More sharing options...
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