It’s not as simple as it sounds. You are going to change the character of your beloved speakers. You need to look into subs.
Upgrade subwoofer for Carver ALIII
I have a pair of Carver ALIII for over 20 years. I have been upgrading preamp, power amp, speaker wire and each time I upgrade, I can hear the difference. For the price I paid for, I am very happy. But I know from day one, Carver ALIII did not use better grade subwoofers. Can any one give me some advise on upgrading the subwoofer? One web chat said the OEM were sourced from Eminence and are 4 ohm. I also know this is a 10" subwoofer, and I have been using 250 watts power amplifier to power these subwoofers. Thanks.