Thread size for Legend L800 spikes
Anyone know for sure what the thread size is on the L800s? Isoacoustics is showing M12-1.5 in their product selector.
Comments
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Anyone know for sure what the thread size is on the L800s? Isoacoustics is showing M12-1.5 in their product selector.
One way to know for sure.
Go to local Menards or Home Depot and run it into their thread gage in the nuts and bolts isle. -
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Yep that's free to use at the home stores 😉 except you actually screw the bolt in to determine thread pitch and tpi
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Drew has the answer if @ptrooper answers. I remember he had a discussion about spikes etc. '
Found it (pic of comment):
Link to his thread
L800 thread size for spikes etc"Sometimes you have to look to the past to understand where you are going in the future"Anger is just anger. It isn’t good. It isn’t bad. It just is. What you do with it is what matters.
You can use it to build or to destroy. You just have to make the choice. Jim Butcher
Harry / Marietta GA -
Niiiicccce
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Strange. 3/8ths looks more like 10mm than 12mm. I’ll double check and on the pitch measure too. Maybe Polk went with a larger diameter than the old standard 1/4-20 because the newer speakers are outrigger types.
I’ll check on the LSiM707 too since those appear to be a little different as well. -
10mm is 3/8
12mm is 1/2
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Sorry for late reply.......None of the threads supplied by isocoustics Gaia1's fitted the L800's,i had to get them fabricated.
I thought it was funny how they responded via email to me wanting to buy and even encouraging me to go the next size up but no response when i informed them that this is the size i needed ! -
Sorry for late reply.......None of the threads supplied by isocoustics Gaia1's fitted the L800's,i had to get them fabricated.
I thought it was funny how they responded via email to me wanting to buy and even encouraging me to go the next size up but no response when i informed them that this is the size i needed !
I think in the US market they say to go through the dealer that sold the Gaias. Isoacoustics may be based in Canada.
In my case the seller was Crutchfield for use on a different set of speakers that I knew took a standard metric size. They provide the 1/4-20, 6mm, and 8mm size by default. Other sizes are supposed to be available from dealers but I haven't put that to a test.
The Isoacoustics online product selector for thread size is obviously wrong.
Thanks for the info!Post edited by Emlyn on -
I take back what I said about the Isoacoustics product selector. They are obviously CORRECT!
At least for the pair I have. The absolutely correct thread size on my pair is M12-1.5.
I took one of the footers off of my L800s this morning. The 1/2 inch size is close but the footer is loose inside of it. So not an exact match.
The "spikes" on these are pretty dull tipped. I should have a full set of the Gaia IIs on the way later today if they've got the 12 mm inserts to send with them.
Edit: The M12-1.5 size is special order only when buying through Crutchfield and may ship direct from Isoacoustics.
Post edited by Emlyn on -
Correct I'd think between the thread pitch and tiny bit of diameter difference that would be the case
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I have the L800s on a hard wood over slab floor so had been using the feet with the rubber feet on them since I got them back in June. There is a difference in sound output between the spikes and rubber feet over them. With the stock rubber feet on them there's a more diffuse sound quality. The speakers sound sharper and more focused with them off. I'd call it a subtle difference and not huge but there is one that's noticeable. Given my experience with the Isoacoustics Gaias on another pair of speakers I would expect improvements in the tactile nature of the bass output with music without taking anything else away. That hasn't been a subtle change with the other pair of speakers.
I hadn't paid much attention to the threaded inserts on the L800s but they're really pretty simple. Just a threaded insert that can either be adjusted by turning the spike directly by hand or by using an allen wrench from the top. Nice ergonomic design. -
I took one of the footers off of my L800s this morning. The 1/2 inch size is close but the footer is loose inside of it. So not an exact match.
The "spikes" on these are pretty dull tipped. I should have a full set of the Gaia IIs on the way later today if they've got the 12 mm inserts to send with them.
Edit: The M12-1.5 size is special order only when buying through Crutchfield and may ship direct from Isoacoustics.
Agree, the spikes are rather blunt compared to what I usually use. I did, however, find removing the 800'S rubber feet and changing to the OEM spikes was more than subtle for my situation.
I have a 100+ year old suspended floors that are, in various rooms, somewhat uneven and dip slightly toward the center of the room. I always use a level on all speakers to ensure front to back and left to right. The floor's solid but not by modern standards and requires uneven thread length on the side toward the center of the room.
My 1.2tl's are on the second floor and suffer the same fate but on carpet. Experimented allot w/them and isolation works better on the second story. Currently using outriggers and spikes on Herbie's and it's the best combo vs spikes through carpet. Not in line w/conventional spiking but absolutely a must in this house. In fact, they sound better than in any previous configuration. So, I'm very open to the isolation concept employed by the Gaia's.
Been interested in the Gaia's for a while and look forward to your impressions!
➀Speakers: Polk1.2tl's (Uber Mods) ➁Pre/Amp/DAC: PS Audio BHK Signature & 250, DirectStream ➂Cables/IC's: MIT S1Bi-Wire/S1 Balanced +Avel Lindberg 1000VA "Dreadnought" ➃Power Conditioner: PS Audio P15 Power Plant ➄Power Cords: Core Power Technologies Gold, DH Labs Power Plus DIY w/Neotech NC-P301 & P311ends ➅Streaming: Roon ROCK on wifi'd NUC, TP-Link WAP, & Uptone EtherREGEN, AfterDark, Emperor Double Crown Clock, Black Modernize LPS, PS Audio AirLens⟿Ω☯☥☮⟿🔊♩♪♫♬♩♪♫♬♩♪♫♬ -
I used to live in a house where the living room floors were like trampolines. Really tough to tune speakers and control bass in those situations, but it was doable. I had a downstairs den that was on slab but that was only 10 x 10 feet.
Fortunately, my home theater and two channel systems are now on concrete slab floors. One with hardwood the other with carpet. It's just easier to make adjustments when taking floor flex out of the equations.
Regarding the Isoacoustics Gaia product, I think I need to step up to the Gaia I since the L800s measure at 118 lbs and the limit on the Gaia II is just a couple pounds higher. Isoacoustics recommends going up to the next model higher if within 10 percent of the limit. Something to do with what they call the performance curve. Of course that means the Gaia I are significantly more costly.
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Got the Gaia I from Crutchfield and a set of M12-1.5 inserts drop shipped at no cost from Isoacoustics. The Gaia I model comes standard with M12-1.25 inserts. Took a half hour to install and put the L800s back in place since I was familiar with the installation process on my other speakers.
While these are expensive I could again tell an immediate positive difference with them installed from the first vocals on. The soundstage seems deeper front to back even though the L800s sounded great before. Greater clarity is most noticeable to me. No more mildly diffuse wall of sound quality as with the stock spikes/feet.
One track I return to frequently to test equipment is Al Stewart’s “Year of the Cat” especially for the bass track throughout. The bass seems to be more lifelike and well defined with the Isoacoustics Gaia products on. That seems to help the clarity with the rest of the instruments and vocals.
YMMV but I consider these products to be outstanding.
https://www.youtube.com/watch?v=d2OFKn39IXU
