Hey David,
Mr. Chavira's review is spot on regarding the performance of the Impact Monitor. The only caveat I would add on, based on my experience with reviewing them and purchasing them for my smaller system, is that you really have to use a reference level stand to get the I M's to shine to the level that they can provide, otherwise you decrease the over-all dynamics, transparency, and magical imaging of these "baby" DI's.
Mr. Chavira's review is spot on regarding the performance of the Impact Monitor. The only caveat I would add on, based on my experience with reviewing them and purchasing them for my smaller system, is that you really have to use a reference level stand to get the I M's to shine to the level that they can provide, otherwise you decrease the over-all dynamics, transparency, and magical imaging of these "baby" DI's.