My Prattquake sub was shipped to me with the spike isolators attached. I had never used spikes before so went ahead and set up the sub as is. However, after playing LOTR Return Of The King, I could hear the sub rattling during the extreme low end scenes, of which there are plenty in this film. I also thought I heard some rattling during the U571 depthcharge scenes, but it wasn't as bad as the LOTR scenes so I just ignored it, but couldn't ignore the problem with Return Of The King. At first I thought perhaps I was running the sub with the gain too high and made a correction, but that didn't make any difference. The same rattles occurred during the same scenes. Now my HT has a carpeted concrete floor and no sub floor. So I was wondering if perhaps the isolating spikes were the culprit. Well I went ahead and removed them and low and behold, the rattle was gone. Anyone else ever run into this problem with spikes ?
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George there should have been four nuts that came with that sub that I taped to the side of the box. If you screwed them down tight against the feet they shouldn't rattle. That said you might not notice much of a difference with them on or off so if its just easier to live with them off then go for it. -
Andrew, yeah the nuts were tightened. I think the weight of the sub was driving the spikes through the carpet and resting directly on the concrete. During the scenes I mentioned, when the spikes were on I could place my hand on the cabinet and feel the whole thing shaking violently. With the spikes off I can feel what you would normally feel when a subwoofer is being driven hard, but there was no violent rumble or rattle. I replaced the spikes with 1" square 1/4 " deep rubber pads. Everything is great now.Comment
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"Sounds" good :WComment
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George,
Your problem is not unique. Many people with high output subs have notice this same thing. The majority have removed them and found no audible difference. My SVS came with them and I've never installed them."I have come here, to chew bubblegum and kickass. And I'm all out of bubblegum!!!"Comment
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Yaeh, John, the spikes were something new to me so I didn't know they could cause a problem. Actually, the bass seems even more powerful now that the spikes have been removed.Comment
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Hmmmm, that's interesting! I've never heard of anyone getting that kind of response. However, more output for free has got to be a good thing!!! :BActually, the bass seems even more powerful now that the spikes have been removed."I have come here, to chew bubblegum and kickass. And I'm all out of bubblegum!!!"Comment
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That was the big question about the punch at parties in college. In that situation, people claimed sounds were louder when it WAS "spiked". (Especially the next morning.) :>)To Spike Or Not To Spike ?
Burke
What you DON'T say may be held against you...Comment
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:rofl: Ooooh it's Friday alright! The bad jokes are a flying! :lol:
JasonJasonComment
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I added spikes to my sub, the greatest benefit I have with the spikes is that they give my sub more stability, than when they were with out the spikes. I can adjust my spikes, so even if the floor in not entirely level, I can adjust them so the sub, stays in place. Its really a matter of preference. I only use them mainly for more stability.JasonComment
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Burke,
That was a good one!
Juan,
That is the reason they are included. I guess I've never pumped enough watts though mine, to need it's spikes in place (mental note to self: get a 300w amp for sub!). :B"I have come here, to chew bubblegum and kickass. And I'm all out of bubblegum!!!"Comment
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John, I too was surprised that there was more bass with the spikes removed. Mind you, the difference is subtle, and may be the affect of the sub interacting directly with the room without any isolation. I am also getting some vibration on the walls too now that wasn't there when the spikes were attached. Not bad vibration, mind you, just something you can feel with your hand that I couldn't feel before. Dunno, as audio has never been my thing. If it sounds right, I just go with the flow.Comment
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I remember those scientist at Velodyne told me explicitly not to use spikes on my sub. I called thinkin' I was supposed to get spikes... not sure why I was thinkin' this but they stated I would get better response by not using spikes.
There was a long thread about spikes and subs I read somewhere too. It's been a long time ago but the consensus was don't use them.Comment
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George,
Well, if your happy I'm equally satisfied! :B It's great when something so simply works to our advantage. And when it's free...even better!!!
I think if you can now feel the vibrations upon touching the walls, it is pressurizing the room just as it should.
Sonnie,
Thanks for the info."I have come here, to chew bubblegum and kickass. And I'm all out of bubblegum!!!"Comment
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Currently building Zaph's SR71 and matching stands. First primer coat on drying on sands as I type. Having difficulty deciding how to spike the stands.
With my sub, PE's 10" Titanic, I quickly learned pointy spikes + wood floors = disaster and the separate floor plates are a joke... -
I have B&W Nautilus 802's and an ASW4000 Sub and am looking for floor spike solutions for them both. B&W no longer supplies feet or spikes for these and could not even tell me how tell the feet are supposed to be for the sub.
The 802 has metal plates with a roller wheel on the... -
I have my HTS set up in my basement. The is cement with carpet on top of the cement. I was wondering if I should spike my 803S. I'm concerned about the spikes making contact, through the carpet, to the cement floor can causing a negative impact to the sound. Is it ok to spike them or should I just... -
Hi,
I’m posting this in HTGuide and AVS forum.
I have a Velodyne powered sub connected to my SSP-800 with XRL cable. When I press mute or when a digital input (HDMI/coax) is interrupted e.g. movie pause, transition between menu and movie, I get one or more thumps from... -
Today i finally decided to put my diamonds onto the spikes. It turned out to be a fruitless mission. Not one of the spikes adapter plates would align into the screw holes. The castors fit perfectly. It appears the holes on the spike adaptor plate are incorrectly positioned, basically too close to...
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