High end audio alternator

Anyone running high end audio? Im not talking competition grade but at least 1000w
Whats the alternator of choice . Currently my 60 amp stock is fine at cruise but i need more juice at idle
Choices are denso/gm/tuff stuff mopar. Most of what ive read so far are inconclusive. Also. Im not upgrading my whole harness. Ammeter and bulkead connections have been addressed
.
Right now denso looks most visually appealing.
Thanks in advance