Considering a Streamliner, either 600 or 900. Currently have a mid-90s "Transient Attack" Hartke 410-XL cabinet and considering adding a 210-XL as needed for big indoor and outdoor stages. May also wind up running the head with just the 2x10 (set vertically) on smaller stages and or very small rooms without P.A. suport. Thoughts from anyone who has rolled with this combination? Specifically wondering if the 600 has enough "oomph" to drive 2 cabs or if the extra power of the 900 would be advised?