Old thread but..
The woofer for the SL700 is the same as that for the SL6S. So you can cannabalize an SL6S not an SL6) for woofers.
Celestion in boston still has the tweeeters for about $50 each as of 2 years ago, when I bought some spares.
The woofer for the SL700 is the same as that for the SL6S. So you can cannabalize an SL6S not an SL6) for woofers.
Celestion in boston still has the tweeeters for about $50 each as of 2 years ago, when I bought some spares.