Deaf_in_left_eye...
Fellow GH owner here. Like Lloydelee21 mentioned, try and get your hands on "ANY" subwoofer you can take home to try no matter how cheap or small (but do try for the best you can). I don't see how the G's are going to have the impact of what you are used to (12" woofers). Even a cheap sub will give you an idea. If this makes the difference you want, then by all means get a great sub, the G's deserve it.
The beauty of the sub/monitor way is you can put the G's where they image/sound best and put the sub where the bass will sound best. The G's go low enough so you can use a low x/o point (good thing) and then use the subs volume control to dial in the correct amount for your room/taste.
Good luck.
Fellow GH owner here. Like Lloydelee21 mentioned, try and get your hands on "ANY" subwoofer you can take home to try no matter how cheap or small (but do try for the best you can). I don't see how the G's are going to have the impact of what you are used to (12" woofers). Even a cheap sub will give you an idea. If this makes the difference you want, then by all means get a great sub, the G's deserve it.
The beauty of the sub/monitor way is you can put the G's where they image/sound best and put the sub where the bass will sound best. The G's go low enough so you can use a low x/o point (good thing) and then use the subs volume control to dial in the correct amount for your room/taste.
Good luck.