Amp Tuning

Hello everybody I recently installed some new audio equipment in my 13 Tacoma.
Pioneer TS-Z65C component speakers in the front doors(Thanks Soundman98), TS-D65F in the rear doors. Stock head unit non bose. One 12 Image Dynamics wired 2 OHM and powering all of that a Kenwood X802-5 with bass knob. It's sounding pretty good but this is my first install and I really don't know how to properly the amp. I was hoping someone could give me some insight or at least get me in the ballpark on how to do it considering how popular that particular amp is even though I don't really guess it matters considering all multi channel amps work the same. thanks.

 

So there’s not really any “tuning” to be done on this amp. Tuning would be actually adjusting the audio signal, so in this case your only tuning options are the bass/mid/treble settings on the radio.

this amp has some basic controls so I’ll explain what those are and what they do.

On the left, you have input sensitivity (gain) and input selector.
The gain lets you set the amp’s input level to match the radio’s output level. So when the radio is at 50% volume, you want the amp at 50% power. When the radio is at 20% volume, you want the amp at 20% power, etc.
Without some specific equipment, just set it in the middle and you may need some adjustment from there. Do you have a multimeter? Even just a cheap one will suffice.
The input selector tells the subwoofer where to get its signal from. Either the subwoofer input, or the channel A/B inputs. For your radio, since you only have 4 channels of output, you want the A/B setting.

next up you have the bass boost. This adds a bump in the 40hz range. This also depends on the sub you have. Typically the middle is a good starting spot.


Then you have the low-pass filter for the sub. As the name implies, it allows low frequencies to pass, and blocks high frequencies. This can be dependent on the music you listen to. 80hz is the usually starting point. I like to play “soul to squeeze” by RHCP and turn this up just enough that I hear the bass guitar come through the subwoofer. But not so much that I hear vocals from the sub.

then you get to the high-pass filter which is the opposite of the low-pass.
It allows high frequencies to pass to the door speakers, and blocks low frequencies. I use the same test. Start at 80 and adjust it up until you DONT hear the bass guitar from the door speakers.

There are also some switches below those. Turn those to HPF.