Isolating speakers from the floor

[bumpy]

To avoid transmitting (low frequency) speaker vibrations into the floor and eventually the structure of the room I want to try isolation.

A set of eight 'quality' isolating feet can rocket to well over £1000 and snake oil comes to mind.

https://www.futureshop.co.uk/isoacoustics-gaia-series-threaded-isolation-feet (https://www.futureshop.co.uk/isoacoustics-gaia-series-threaded-isolation-feet)

So do you good people have any recommendation for isolating a pair of heavy floorstander?

Thanks

[CageyH]

Do you need the threaded version?
IsoAcoustics also do a Professional/industrial version, the IsoPuck which works well, and is much cheaper.

[bumpy]

Do you need the threaded version?
IsoAcoustics also do a Professional/industrial version, the IsoPuck which works well, and is much cheaper.

Nope don't need the threaded part :)

[CageyH]

IsoPucks work well.
I have them under my Triangle Esprit Antal EZ, sat on a suspended wooden floor, and they do the job very well.
I also use IsoPuck Minis under my valve equipment, and they work well too.

They are just not as bling/shiney.
Just check the weight falls into the acceptable range.

[hifinutt]

how heavy are the speakers . as cageh says . iso pucks work well

iso puck 76 take 18kg and cost under 70 quid for 2

https://www.musicmatter.co.uk/isoacoustics-iso-puck-76-pack-of-2?gclid=Cj0KCQiAieWOBhCYARIsANcOw0webFQkJwxhZgKH_x ocrS7xmwOHBthqO-kLcRlRGWJpHS1F7sWysaIaAlBMEALw_wcB

[skimminstones]

i bought these when i moved last year and didnt like the bass coming through my laminate flooring. Expensive for essentially some thick foam but they worked.
https://www.amazon.co.uk/gp/product/B007YFWUDO/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&th=1

[bumpy]

how heavy are the speakers . as cageh says . iso pucks work well

iso puck 76 take 18kg and cost under 70 quid for 2

https://www.musicmatter.co.uk/isoacoustics-iso-puck-76-pack-of-2?gclid=Cj0KCQiAieWOBhCYARIsANcOw0webFQkJwxhZgKH_x ocrS7xmwOHBthqO-kLcRlRGWJpHS1F7sWysaIaAlBMEALw_wcB

Now there's a challenge. Normally I would just reply bloody heavy as they can't be lifted by one person but I guess I need to know.

They are prototype open baffles with 2" thick baffles and the bass drivers in particular are very heavy

[bumpy]

OK
Just had a fun moment with the speakers and our bathroom scales. They weigh in at 65KG each.

[AJSki2fly]

I have some Hudson Speaker isolation feet, I have tried them directly under the speakers instead of spikes and also placed the speakers(with spikes) onto oak plinths with the Hudsons under the oak plinths, I have found the second set up gives the best isolation and results in tight and detailed bass and I think overall a better soundstage definition. If you look at a lot of the isolation feet on sale they general incorporate some form of Sorbothane/rubber for isolation and some also utilise a hard point system to focus energy out of the device.

For Oak plinths just buy some 40mm Kitchen Oak worktop and cut to size, you can spray lacquer them black of leave them natural.

These would suit your speakers https://www.hudsonhifi.com/products/hudson-hi-fi-silicone-firm-soft-blocks note this Durometer 60 (Shore A) supports up to 150 LBS: this is important if they are to soft or too hard for the speaker weight then they will not be as effective.

I also found these https://www.ebay.co.uk/itm/274869685819?epid=2238256937&hash=item3fff828e3b:g:15EAAOSw1V5g8YZL but check on what weight 4 can take. Alternatively http://www.true-point.audio for SH30050 50mm Load 12.7 - 17.2kg(each)

[Pigmy Pony]

I have some Hudson Speaker isolation feet, I have tried them directly under the speakers instead of spikes and also placed the speakers(with spikes) onto oak plinths with the Hudsons under the oak plinths, I have found the second set up gives the best isolation and results in tight and detailed bass and I think overall a better soundstage definition. If you look at a lot of the isolation feet on sale they general incorporate some form of Sorbothane/rubber for isolation and some also utilise a hard point system to focus energy out of the device.

For Oak plinths just buy some 40mm Kitchen Oak worktop and cut to size, you can spray lacquer them black of leave them natural.

These would suit your speakers https://www.hudsonhifi.com/products/hudson-hi-fi-silicone-firm-soft-blocks note this Durometer 60 (Shore A) supports up to 150 LBS: this is important if they are to soft or too hard for the speaker weight then they will not be as effective.

I also found these https://www.ebay.co.uk/itm/274869685819?epid=2238256937&hash=item3fff828e3b:g:15EAAOSw1V5g8YZL but check on what weight 4 can take. Alternatively http://www.true-point.audio for SH30050 50mm Load 12.7 - 17.2kg(each)

Those you did for me last year are just the job for my speakers - recommended. And because they were the same dimensions as the speakers they look like they're part of the cabinets :)

[bumpy]

] but check on what weight 4 can take.

This is a good point to allow each support to works in its optimum range. Too much weigh and it is too squashed and too little weight and its barely doing its job.:)

For 'normal' speakers each corner would 'weigh' 16KG.

BUT for my open baffles probably 75% of the weight is concentrated on the front edge and only 25% at the rear edge.

So my calculations suggest that each front corner 'weighs' 24Kg and each rear corner 'weighs' just 8Kg. So I will probably need different front and back supports

[zanash]

similarly my panel speakers have much of the weight to the front edge ....The real eye opener were the townshend seismic bars ...I could place these at the appropriate points over the center of gravity. These were not cheap but the effect was as if I bought a whole new system at a fraction of the price. Al aspects of the musical presentation improved.

Incidentally there is a very good you tube presentation as to the whys and hows from townshend https://www.youtube.com/watch?v=dW9-r83IvhI

[CageyH]

This is a good point to allow each support to works in its optimum range. Too much weigh and it is too squashed and too little weight and its barely doing its job.:)

For 'normal' speakers each corner would 'weigh' 16KG.

BUT for my open baffles probably 75% of the weight is concentrated on the front edge and only 25% at the rear edge.

So my calculations suggest that each front corner 'weighs' 24Kg and each rear corner 'weighs' just 8Kg. So I will probably need different front and back supports

Or three pucks at the front, and one at the back?
I would get in touch with IsoAcoustics and see what they say. They usually respond fairly quickly.

[RMutt]

I once made my own isolation pads by squeezing silicone filler into a shallow mould. I made them rectangular, about a centimetre thick and just a little bigger than the footprint of the speaker. They isolated the speakers quite well from the cavity under the floor and tamed/ tightened up boomy bass.

[anthonyTD]

I have used the Townshend isolation system for many years now, and have removed them a few times just to make sure my mind isn't playing tricks with me, the diffrence with and without isnt subtle, so I can deffinately recomend those, not cheap, but IMHO well worth the investment. :)
A...