Originally Posted by
Jdunk54nl
Best bet is to put way all of those "fancy" tools for gain setting.
Set your gains on the helix to 0db in the software. Make sure input sensitivity for each channel is set appropriately on the helix. You want the dsp putting out as much as it can to your amps to have as low of gain on them as possible (this reduces potential noise issues).
Set basic time distances (or use Helix's built in T/A stuff).
Then use your microphone to set appropriate gains.
-Pull up REW and input the audiofrog house curve (you can generate this using Justin Zazzi's tuning companion found on this site in a sticky in the tuning session)
-Set crossovers appropriately for each speaker to not break them. You can adjust and fine tune this later, but it should be semi-close to what you will be using.
-Edit** While nothing is playing, turn up amp gains that have physical gain knobs to max level before noise is too much in system. For amps with dsp/digitally controlled gains, do the same using their controls in the software
-Mute right side and sub and just leave left side on. Start REW RTA with audiofrog curve in the background (the selected response will always be in the background of the RTA). Adjust audiofrog curve level to be at lowest speaker level (since you already maxed out each gain for minimal noise).
-Turn down amp gain(s) (since you already maxed out each gain for minimal noise you don't want to increase anymore) until the curve and the level of each speaker are at the same level as each other. Set gains to lowest speaker level, as in, if mid is much lower than tweeter, set levels based on mid's max level before noise in the system is too much.
-Now mute left side and do the same for right side, if only one gain knob for two speakers, make sure they are close, you can fine tune in the dsp.
-Now turn on both sides and subs and set sub level.
Now you have appropriate gains set and are halfway to being done with tuning. Fine tune some crossovers and then run Auto EQ.