Yea I just seen you were the one with the Eclipse 10 for sale someone else has a AP Revo with a LMS coil for sale also well it might of been a month ago. Thiers alot of TC9's they had the .75 dual slug motors, the 1" dual slug motors, .7f triple slug motors, TC9 with a copper sleeve, Tc9 with a aluminum shorting ring in the magnets, the under hung TC9 like on the Audiomobile Mass then you have that motor with a copper sleve on it. Thiers alot of them out thier and I'm pretty sure some had the copper sleeve with the aluminum shorting ring inside the magnets also. I always thought the coils were bigger guess only on the protos and originals they were bigger but the TC9 has a huge gap to begin with so maybe thats the reason thier the same size coils. It's a hell of a motor tho alot of subwoofer companys have used them all with alittle changes.
Hmm... A REVO with an LMS coil? It wouldn't be a REVO anymore then. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif
It seems there's a lot of confusion about what a TC-9 really is so let's see if we can agree on a couple of things to help get a standard going. It would be great if Kyle or Thilo would stop by and put us all in line but we'll do our best without them .
For me, a TC-9 is obviously a 3" coil motor. It has either two .75" slugs or two 1" slugs, measuring 1.5" and 2", respectively. It has a top plate with a thickness of 12mm and a gap of approximately 6mm (5mm for early versions with .75" slugs). It may or may not have a shorting ring in it and it can be copper or aluminum, the location and task is the same for either. Essentially, we're describing an available strength of flux and the geometry of it.
In my eyes, once you move to three .75" slugs (2.25" thick), you have changed the available amount of flux, making it different from the versions I just highlighted. In addition, most will identify the three .75" slugs as a 3HP since it's widely used on the Storm, Ti, AXIS, and so on.
I also never understood why people describe the MASS motor as being a TC-9. It has only a single 1" slug and a huge amount of top plate for that one slug to try and saturate, along with a gap much wider than the usual 6mm for a TC-9 even when measured from the ID of the copper sleeve (for that version) to the OD of the T-yoke. This is to accommodate an 8 layer, round wire coil, which helps raise BL product and power handling. In fact, the T-yoke is the only part that the two motors share. The flux pattern and strength is completely different.
So far;
2" thick magnet = TC-9
2.25" thick magnet = 3HP
3" thick magnet = 3HP+
I'm hoping if I'm wrong, this conversation will flesh out the finer details as to why. Really hoping the designers will chime in.