mains - you might possibly be mistaking me for someone else as I never mentioned the Townshend video. I am a strong proponent of isolating everything due to the deleterious effects on the audio signal of seismic vibrations - produced by traffic, wind, ocean tides, speaker feedback, subways, footfall, local construction projects, Earth crust motion, etc. Generally speaking I eschew racks since most of them exacerbate the floor borne seismic vibration although I can certainly appreciate that racks organize one’s components. I also do not favor any vibration isolation device that employs rubber or really any soft materials whether for damping or any other reason. As far as your experience goes, everyone has a story and yours is neither better or worse than another's.
- ...
- 226 posts total
hi geoffkait heres what im referring to geoffkait5,196 posts09-17-2016 11:11ammains 3 posts 09-17-2016 5:12am YOUTUBE Townshend audio How to isolate speakers from ground borne vibrations. while it is probably true that the Townshend isolation devices prevent structural ground borne vibrations from getting up into the speakers wouldn’t the more important function of the Townshend iso devices be to prevent the speaker vibrations from getting down to the floor thus possibly producing what we generally refer to as acoustic breakthrough? Besides the speakers are going to be vibrating whilst playing anyway, so there’s not much the Townshend iso devices can do to alleviate that speaker vibration and it’s affect on the internal crossover, speaker input connectors, wiring, etc. inside the speakers, no? Excerpt from Townshend website: "Seismic Isolation Podium Designed as a range to accommodate any size and weight of speaker – standmount plus stand, floorstander or subwoofer – the Seismic Podium breaks the acoustic connection between the floor and the speaker, preventing the passage of deleterious vibrations both to and from the speaker cabinets. For a detailed explanation of why this is an absolute necessity before any speaker can perform to its true potential, read ‘Earthquakes on hi-fi’." when im listening to music no energy from the speakers vibrates threw the floor, using podiums your speakers are completely isolated measured down to 4hz so i would confidently say acoustic breakthrough has been achieved down to a measured 4hz regards john |
Just to be clear, I was quoting and responding to what someone else said in the reference to the Townshend video. Actually we are agreeing about the mechanical feedback issue. That is the most important thing when isolating speakers. Especially subwoofers. But the frequencies below 30 Hz - the so called seismic frequencies - are still running around. That's why you also need to isolate everything else. That's why Townshend called his first ISO stand SEISMIC SINK - because it dealt with seismic vibrations. |
if anyone wants to buy townshend audio seismic isolation products please contact Emporium hifi website or by phone on 01508518542 they are from the uk and the townshend audio prices are by far the cheapest anywhere , you can order any new product you require at discounted prices and shipping to anywhere in the usa or europe is not a problem |
- 226 posts total