How to adjust JL slash 500v1

[mac336 10+ year member]

OK, I basically know nothing about installing car audio. I had 2 10" w3v3s put in a couple of years ago with JL slash 500 amp powering them. I am getting rid of the w3's and putting in a single 10" w1v2 with a sealed box. Obviously when i had my W3s put in they tuned the amp for those subs. So my question is what do I need to do or how should I change the seting on my amp so that they will not blow the new sub I'm putting in. I'm assuming If i were to just hook up the W1 without adjusting the settings, I would most probably blow it or something. Any help would be greatly appreciated.

Click to read more...

 

[LosIsATool 5,000+ posts]

it should be fine.. That amp puts out the same power at all ohm loads. Just make sure you dont wire your subs down to 1ohm.

 

[vaiboy 10+ year member]

OK, I basically know nothing about installing car audio. I had 2 10" w3v3s put in a couple of years ago with JL slash 500 amp powering them. I am getting rid of the w3's and putting in a single 10" w1v2 with a sealed box. Obviously when i had my W3s put in they tuned the amp for those subs. So my question is what do I need to do or how should I change the seting on my amp so that they will not blow the new sub I'm putting in. I'm assuming If i were to just hook up the W1 without adjusting the settings, I would most probably blow it or something. Any help would be greatly appreciated.

You will need to adjust the Input Sensitivity (gain) with a DMM to limit the output of the amp. The 10w1v2 has a max rating of 300W but optimal is 150-250W. The 10w1v2 is either 4Ω or 8Ω, you will need to know which before you set the gain.

First disconnect the sub from the amp.

Turn off the LPF, Bass EQ, and Infrasonic Filter on the amp.

Set the Input Voltage to Low and turn the Input Sens. all the way down (counterclockwise)

At the head unit set all EQ settings to 0 and turn off "Loud"

Set the DMM to read AC Voltage and place the probes in the speaker outputs of the amp.

At the head unit play a 50hz test tone at about 3/4 volume or the highest volume you normally use.

The slowly turn the Input Sens. while watching the voltage reading on the DMM.

If your sub is 4Ω you want the voltage to be 24.5(150W)-31.6(250W)

If your sub is 8Ω you want the voltage to be 34.6(150W)-44.7(250W)

With the voltages set properly you shouldn't have any worries.

As far as tuning goes leave the Bass EQ off, turn on the LPF set the slope to 12db and the frequency to 80hz.

Since you are running sealed you can leave the infrasonic filter off, or turn it on and set it to the lowest freqency.

 

[mac336 10+ year member]

You will need to adjust the Input Sensitivity (gain) with a DMM to limit the output of the amp. The 10w1v2 has a max rating of 300W but optimal is 150-250W. The 10w1v2 is either 4Ω or 8Ω, you will need to know which before you set the gain.
First disconnect the sub from the amp.

Turn off the LPF, Bass EQ, and Infrasonic Filter on the amp.

Set the Input Voltage to Low and turn the Input Sens. all the way down (counterclockwise)

At the head unit set all EQ settings to 0 and turn off "Loud"

Set the DMM to read AC Voltage and place the probes in the speaker outputs of the amp.

At the head unit play a 50hz test tone at about 3/4 volume or the highest volume you normally use.

The slowly turn the Input Sens. while watching the voltage reading on the DMM.

If your sub is 4Ω you want the voltage to be 24.5(150W)-31.6(250W)

If your sub is 8Ω you want the voltage to be 34.6(150W)-44.7(250W)

With the voltages set properly you shouldn't have any worries.

As far as tuning goes leave the Bass EQ off, turn on the LPF set the slope to 12db and the frequency to 80hz.

Since you are running sealed you can leave the infrasonic filter off, or turn it on and set it to the lowest freqency.

Thanks alot, hopefully I will be able to follow these instruction when the sub comes in