Originally Posted by Greg_R
I saw that (which is why I asked the question if it could implement the crossover as well as room correction). However, there doesn't seem to be an easy way to drive all the amps from the same 2ch source? (i.e. 3 amp modules for a 3-way speaker system)
There are several ways of doing what you want to do - that is have 3 pairs of stereo channels
that are crossed over and room corrected.
For example, one method is to use either a TacT RCS 2.2x or Tact RCS 2.2XP and 3 TacT
stereo digital amplifiers. You can use the RCS to do the room correction and crossover
calculations and download those into the digital amps. The RCS is then used as a preamp,
and the TacT amplifier voltage supply rails are slaved to the RCS for volume control.
One Stereo Times reviewer, Don Shaulis uses a TacT 2.2x and 3 S2150 amps to tri-amp
his Apogee MiniGrand; which is 3-way - midrange/tweeter ribbon, woofer ribbon, and
dynamic subwoofer. Check the sidebar on Associated Equipment and his description of the
system under the heading "Performance" at:http://www.stereotimes.com/cable011306.shtml
If you want to do the same with the Dynamic Room Correction; which corrects for the volume
level also via the Fletcher-Munson curves; one would need to substitute a 2.2XP for the 2.2X
and the newer S2150 XDM for the S2150.
The 2.2X and the 2.2XP can also be fitted with a couple of stereo DACs each to provide 2 stereo
pairs of line-level output . In that case, one could dispense with 2 of the 3 stereo digital amps,
and use the 2 stereo pair analog outputs of the RCS 2.2X or RCS 2.2XP to drive a couple
analog stereo amps to provide for 4 channels and the remaining stereo S2150 or S2150 XDM
which would be slaved to the RCS; would provide the other 2 channels for a total of 6 channels.
The older RCS 2.2X requires a computer during setup to compute the correction filters and
download those into the RCS 2.2X and S2150 amps. The newer products like the RCS 2.2XP
and the Boz 216/2200 have on board processing power, so they don't need a computer during
the setup phase. However, TacT has a nice GUI interface, screen shots of which are attached
to previous posts; that can be utilized optionally with the 2.2XP and Boz; and is required with
The Boz216/2200 system has even more flexiblity and expandability. You can download a
User's Manual for the Boz at:http://www.tactlab.com/Resources/Dow...Z216-2200.html
Page 25 of the manual shows how you "daisy-chain" 3 stereo amplifier modules in order to
form a tri-amp system, like you want to do.
The TacT systems are very modular and can be mixed / matched in various ways.
The latest edition of "The Absolute Sound" has a review of the TacT RCS 2.2XP
by Anthony Cordesman