May cause damage to the surface if removed. May not adhere to certain surfaces such as siliconized or water-repellent materials. ![]() Continue pressing firmly for 1 minute or longer to allow Flex Tapes adhesive to completely bond to the surface being sealed. These are areas are where water could seep through and create a leak.ĥ. Make sure all water, air pockets, creases and folds have been completely removed. Press firmly using your fingers, squeegee, credit card, roller and continue pressing firmly starting at the center and working towards edges.Ĥ. For best results, apply Flex tape to both sides of the repair.ģ. Once applied Flex Tape cannot be repositioned. Remove the liner and apply the Flex Tape firmly over the area being sealed. You can also round the corners of the patch to help prevent the corners from lifting.Ģ. Keep the liner on and cut Flex tape to create a patch larger than the area being repaired. Only use on smooth, clean non-porous surfaces and applied at room temperature.ġ. How To Use Flex Tape on Wet Surfaces or Underwaterįor best results, when applying on wet surfaces or underwater, make sure the area being sealed is clean and free of any grease, oil, dirt, debris or algae. *Flex Tape is a temporary, emergency repair and is not meant to be a permanent fix. Using your fingers, plastic squeegee or roller, press down firmly and remove any air pockets. Apply tape to a clean surface and press down firmly.Ĥ. ![]() Make sure to use a high quality utility knife with disposable blades or a razor blade when cutting.Ģ. Leave backing on tape and cut to desired dimension. Photograph 4: Modified and tweaked Fostex FE103En fullrange speaker driver.1. To make a nice thick pad, use rubber cement and glue two or three felt pieces together (Photographs 3 and 4). In this example a 50/50 cotton/acrylic felt, 3 mm thick is used. Ideally you will want to use a nice thick material that will effectively absorb sound waves. This is to limit the reflection of sound waves in the enclsoure. It is always a good idea to cover the magnet with sound absorbant material. ![]() Use Sound Absorbing Material on Large Reflective Surfaces Photograph 3: Rubber Cement / Adhesive used to hold Felt on FE103En. Photograph 2: Use Duct seal putty to fill gap between speaker motor and chassis. Check the improvement for yourself by tapping the speaker chassis with a screw-driver before and after the modifications and listen to how much quicker the chassis ringing fades away. Photograph 2 shows an example of using duct seal to dampen the open gap between the motor and the chassis. Electrical duct seal is a non-hardening sealant that adheres to metal, masonry, wood or plastic. You should be able to find the duct seal in the electrical section of your hardware store and a block should be under $5 (Photograph 1). The duct seal will help dampen against ringing. Fill Gap between Chassis and Motor with Duct Seal Puttyįill the open gap between the motor (magnet) and the chassis (frame) using duct seal. For the larger Fostex fullrange drivers see the Fostex FE206E / FE206En driver modifications and tweaks page. These modifications and tweaks are suitable for the Fostex (FE83En, FE103En, FE126En, FF85WK, FF105WK, FF125WK) drivers and can likely be applied to similar small speaker drivers that also use a stamped steel chassis. The modifications and tweaks are generally focused around the idea that the light-weight stamped steel chassis can "ring". For those who don't want to permanently alter the fullrange speaker driver, the modifications are reversible. Some examples of the simple and inexpensive modifications which can be made to these speaker drivers are described below. There are many great modifications and tweaks for the smaller Fostex fullrange speaker drivers. Small Fostex Fullrange Speaker Driver Modifications and Tweaks
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