Upgraded the cockpit speakers to Eclipse 6X9 4ways and have a JL 500 amp itchin to get put in for the sub(s) planned under the back seat. It is tall enough for a 12" sub and deep enough for a proper enclosure.
Question is: With the type of 6X9's I have will two 10" subs be better off than one 12" or vice versa and why?