The RTIA and CSIA are from the same line of speakers.
The CSIA4 would be better suited with the RTIA5 or RTIA7.
The CSIA6 would be better suited with the RTIA7 or RTIA9.
You want a large centre channel speaker since 90% of the dialog in movies comes from there. If you go with the bigger fronts then stick with the bigger centre.
|