I am about to replace my pa cabinets with some that hopfully travel easier, sound better, louder perhaps... and would be interested in hearing your thoughts before I actually lay down the green. What I have now (This is for my microphone amplification only btw...): A generic 300w @ 4 ohms pa amp a Sure 1x15" w/ 2 tweeters and a 4x10 horn a home made cab with 2 8s and 2 6.5s - unfortunately I do not know off hand the SPL rating of the 115 cab, or the home made job, but the total speaker area is around 343. The 115 must weigh close to 100 pounds, the home made one is probably about 50. So I am looking at a pair of these: PMBH1539 Features: Heavy Duty Construction w/Reinforced Corners Black Carpeted Finish 2 Way Speaker System Each PMBH1539 Contains: --- One 4 x 10 Super Horn Midrange/Tweeter --- One 15 High Power Subwoofer Two Heavy Duty Handles for Easy Portability Quick Connect Speaker Terminals Dual 1/4 Phono Jacks Dual Ports for Added Bass Response Built in Crossover Network Power Handling: 200 Watts RMS 400 Watts Peak Frequency Response: 45-19kHz SPL: 101dB @ 1W/1M Impedance: 8 Ohms Shipping Dimensions: 32H x 22W x 16D 48 LBS (the speaker area is about 354) or a pair of these: PMBH1239 Features: Heavy Duty Construction w/Reinforced Corners Black Carpeted Finish Two Way Speaker System Each PMBH1239 Contains: One 4" x 10" Dispersion Horn Mid/Tweeter One 12" WH12 High Power Subwoofer Steel Waffle Grill Protects Woofer Quick Connect Speaker Terminals Pocket Handles for Easy Portability Two 1/4" Phono Jacks Shock Absorbent Legs Dual Ports for Added Bass Response Built-in Crossover Network Power Handling: 150 Watts RMS/300 Watts Peak Frequency Response: 50-19k Hz Sensitivity: 97dB Impedance: 8 Ohms Shipping dimensions: 13"X 17"X 25" - 31 LBS (the speaker area is about 226) I am buying speaker stands so they will be elevated to ear level. The 12s are $149/pair, to the 15s $199/pair. The 12s are much lighter, which I like... But at 4db quieter, I am not sure that they would be sufficient against 2 150w mesa boogie guitar rigs, both playing through 2x12s. Carvins RC21018 rig and unamplified drums. Thanks in advance for your thoughts.