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RE: Your best tweaks for fullrange

damp mechanical resonance with the best available constrained layer damping material this will provide maximum reduction in mechanical vibration. Damp acoustical resonance/reflections with acoustical felt which has the widest possible absorption coefficient. The best time to do theses things is when you are building the driver or when you are rebuilding the driver so you will have full axis to the pole piece the top plate and the basket, otherwise you will need to remove the dust cap to access the pole piece. After the fact damping can be applied to the top plate by incisions in the side of the spider. Available space under the spider will be the limit as to what you can do there. Acoustical damping can be installed between the cone and the spider to absorb reflections between the top plate and the cone, this is also very effective in catching reflections between the basket and the cone. Felt can be applied to the inside of the basket as well. Each driver will offer its own unique set of conditions so there is no one recipe. I use these techniques to treat woofers mids tweeters cone/dome and compression drivers. Cost will often dictate what and how much you do to a given driver. I like to damp both sides of a basket with CL damping and felt but this is not inexpensive to do so you need to decide if the driver is worth it. This is a time consuming method and it is not inexpensive but it is very effective. Non treated drivers will soon become very unattractive to you. This is a very powerful system for the improvement of drivers. Hope that this helps. Best regards Moray James
moray james

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