facten,
That's true, they do recommend placing them on top of the speaker, and I called a Townshend dealer who said the same. However, in my case, my speakers are a D'Appolito configuration with a center horn between two bass drivers which produces the midrange and treble; so I thought that it would make more sense to have the supertweeter located on the same level as well as pushed back as deep as the depth of the driver inside the horn to make it at least somewhat more coincident.
I didn't have a proper stand when I first bought the supertweeters, so I placed them on top, and did hear some of the desired effect, but once I built the simple stands that were needed for the placement that I describes, it sounded much better, and I think that there are two reasons for that. First, as I said, the placement made the tweeter more coincident with the midrange, and second, the ribbon tweeter was now much closer (on my tall speakers) to my ear level. Remember, ribbon tweeters aren't like dome tweeters; they don't have very wide vertical or horizontal dispersion, so the placement relative to your ears matters.
If you are using a set of small monitors on stands for instance, with the speakers tweeter mounted near the top of the cabinet, then it's probably fine to just place the supertweeter right on top of the cabinet.
That's true, they do recommend placing them on top of the speaker, and I called a Townshend dealer who said the same. However, in my case, my speakers are a D'Appolito configuration with a center horn between two bass drivers which produces the midrange and treble; so I thought that it would make more sense to have the supertweeter located on the same level as well as pushed back as deep as the depth of the driver inside the horn to make it at least somewhat more coincident.
I didn't have a proper stand when I first bought the supertweeters, so I placed them on top, and did hear some of the desired effect, but once I built the simple stands that were needed for the placement that I describes, it sounded much better, and I think that there are two reasons for that. First, as I said, the placement made the tweeter more coincident with the midrange, and second, the ribbon tweeter was now much closer (on my tall speakers) to my ear level. Remember, ribbon tweeters aren't like dome tweeters; they don't have very wide vertical or horizontal dispersion, so the placement relative to your ears matters.
If you are using a set of small monitors on stands for instance, with the speakers tweeter mounted near the top of the cabinet, then it's probably fine to just place the supertweeter right on top of the cabinet.