Question for people who have installed Fi IB318 subs - AVS Forum | Home Theater Discussions And Reviews
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post #1 of 9 Old 05-19-2019, 10:51 AM - Thread Starter
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I’m ready to install two of my IB318’s into a manifold. The screw holes in the speaker frame are covered by the part of the rubber surround that is glued down. If I put a screw through it, the head of the screw seems like it might be awfully close to the surround itself, cutting into the part that is glued down. Are these meant to be mounted some other way?
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Last edited by GrandPixel; 05-19-2019 at 12:12 PM.
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post #2 of 9 Old 05-19-2019, 03:19 PM
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Most large xmax subs are like that. Make sure screws aren't sticking up or at a angle. It's fine.
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post #3 of 9 Old 05-20-2019, 10:08 AM
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If you want to be safer you could drill a smaller pilot hole perpendicular to the surface, that way the wood won't split and the screw will be guided.
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post #4 of 9 Old 05-20-2019, 06:31 PM
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No no no screws.Use round head bolts that require hex allen wrench.
No no no drilling into speaker frame as all speaker frame holes are predrilled at factory
Mark with pencil on mdf where bolts holes go then place speaker off to floor carpet and gently drill on mdf and only mdf then place bolts then after wrenching bolts all the way in mdf then remove bolts from mdf then place speaker frame and gently place speaker bolts use bolts nuts with flat washers and bolts nuts with plastic anti spin ring aka security nuts.

Remove rubber gasket from speaker frame and notice on back of speaker frame 8 predrilled bolt hole s now gently use a small nail to remove rubber from these 8 predrilled bolts hole and only from these 8 predrilled bolts hole so that the 8 bolts can fit into the 8 predrilled bolts hole and place speaker gasket then place speaker frame on mdf then gently gently place bolts into holes

Yamaha avr, diy l c r surround Behringer nx3000 dsp Fi car audio ib318 v2 310 cubic foot concrete ib lg pf 1500 projector.steren projector mount.
Pending create diy riser Bass shakers , buy fourty 6 inch drivers for some new mains get new 4k projector
I can hear my wallet screaming already

Last edited by Russell Burrows; 05-20-2019 at 06:42 PM. Reason: Forgot to mention gasket
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post #5 of 9 Old 05-20-2019, 08:39 PM
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You can just bend the rubber towards the edge of the speaker and screw in behind it
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post #6 of 9 Old 05-21-2019, 06:16 PM
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Don't think anyone mentioned drilling the speaker frame.

Type of screw and type of head are not linked. I like square or Allen socket head screws so I don't slip and punch a hole through speaker.

Many people use normal wood thread screws without issue. They are better in plywood than MDF.

If using machine thread bolts, definitely spend some time making sure nut can't spin. Nothing more frustrating than being unable to remove a bolt because the nut spun free. There have been many threads over the years debating the merits of T-nuts, hurricane nuts, epoxy, screw adjacent to nut flange..
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Last edited by Bigus; 05-21-2019 at 10:53 PM.
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post #7 of 9 Old 05-21-2019, 09:17 PM
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Having my share of fun with spun out T-nuts, screws are all I use now. Deep, coarse threaded screws have better holding power, either marketed for particle board or sheet metal.

Ask your doctor if DIY is right for you. Side effects of DIY may include anxiety, elevated blood pressure, lightheadedness, rapid heartbeat, skeletal muscle flaccidity, euphoria, psychological dependence, insomnia, confusion, blurred vision, implusivity, uncontrolled or repeated movements.
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post #8 of 9 Old 05-21-2019, 10:08 PM
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Quote:
Originally Posted by markmon1 View Post
You can just bend the rubber towards the edge of the speaker and screw in behind it


I did this and used leftover pocket screws from my screen build.

Snug Fastener 100 Qty #8 x 1-1/4" Coarse Pocket Hole Screws w/Washer Head (SNG228) https://www.amazon.com/dp/B07L48Q1GM..._eIn5Cb0MV280N


Sent from my iPhone using Tapatalk
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post #9 of 9 Old 05-21-2019, 10:30 PM
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#8 wood screws....

Blasting brown notes for 10 years and counting!

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