No it's not hard to turn knobs and read meters. But when this is something you have never done and you have thousands invested in a particular thing then you want someone else to be responsible for damaging it. Plus I want to get the DSP setup right. I have never dealt with those. The most technical I have ever gotten is to connect an oscilloscope to my equiment to set gains.Is it that hard to plug P and R into the equation sqrt(P * R) and then turn a gain knob with a DMM? Well, you can't go wrong taking it to a shop.
I get where you're coming from. You don't need a DSP for this, any ol' DMM would do. Reading the AC voltage from your amp's speaker terminals is about the same level of difficulty as reading the AC voltage from a wall outlet in your house, so it's probably easier than you think, but I get it.No it's not hard to turn knobs and read meters. But when this is something you have never done and you have thousands invested in a particular thing then you want someone else to be responsible for damaging it. Plus I want to get the DSP setup right. I have never dealt with those. The most technical I have ever gotten is to connect an oscilloscope to my equiment to set gains.
I would disagree with that. You're either cutting down your usable range, making your adjustments have more gap between each adjustment; or you're going to turn it up over where it was set, and then you're going to be sending a lot more wattage to your speakers. One or two below max volume seems more reasonable to me.On the right use the voltage calculator. Take the RMS power of the speakers x 4 ohms and it will give you the voltage.
So say the for the sub amplifier 3,000 watts at 1 ohm would be 54.72 on the DMM for voltage.
For the 4 channel say the total RMS is 200 watts between both speakers, take 200 then 4 ohms would be 28.28 on the DMM. As Channel 1 should control the voltage for left and right front with channel 2 controlling rear left and right speakers. Or if you are using the front with components only then you put the tweeters on the front channels and the mid-bass on the rear channels. Works perfectly and you set the voltage on 1 for the tweeters and 2 for the mid-bass. Did mine that way for awhile always works.
FYI you set your head unit to 75% and make sure you are using a test tone as well to set the voltage on the amplifier. If the head unit has BT use a test tone generator on your phone and connect it that way. I set mine that way and it works or buy the test tone cd from SMD if you want.