MGA Tuning Blocks

Here's the product page for Tuning Blocks https://tuneland.forumotion.com/t213-michael-green-s-tuning-blocks



I Know some of you are talking on your threads about them and I would like to expand this to a thread of it's own.

Michael,

Are these replacements for the cones or addition to cones...where and when do you use them?

Hi Chip

Here is the web-page http://www.michaelgreenaudio.net/tuning-blocks

Also let me copy more pictures here and explanations.