Dustin, my general tendency is to suggest spending less, not more than was proposed, but as I said previously, in your case moving up one step is strongly encouraged. As has been pointed out now, another advantage is 7 amplifier channels rather than 5, and full pre-outs. Both now and in the future you'd be better equipped to fully enjoy your Axioms.

Again, my suggestion is to go with the more cost-effective Onkyo 708 or 709 rather than the in my view needlessly costly Integra model with similar capabilities.

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Enjoy the music, not the equipment.