How do i test a speaker with a DMM? (big newb)

he was probably going to have you put the + probe of the DMM on the + terminal of the sub and the - probe of the DMM on the - terminal of the sub. set your DMM to measure ohms, and it should be = to the resistance (ohms) that your speaker is rated (or close to it).

to set your gains,

set your DMM to measure AC voltage (between 1.0-40.0v).

Set everything on your amp to 0 or as far down as they go.

disconnect your sub from the amp, play a 50 hz test tone recorded at 0 db.

test the voltage of the amp while this tone is playing (put the DMM probes in the speaker terminals)

You need the voltage to be = to or close to:

the ## of watts you want to put out DIVIDED by your sub's ohm load

Take that number and square root it.

This is the number you want your amp's output voltage to be at.

Once you have your gain set, play a test tone (recorded at 0db) of where you want your subsonic filter to be at. While playing, raise your subsonic filter until your amp's output voltage is affected (starts to lower).

To set your highpass, play the tone you want your highpass to be set at, and lower your highpass until the voltage is affected (lowers).

he was probably going to have you put the + probe of the DMM on the + terminal of the sub and the - probe of the DMM on the - terminal of the sub. set your DMM to measure ohms, and it should be = to the resistance (ohms) that your speaker is rated (or close to it).
to set your gains,

set your DMM to measure AC voltage (between 1.0-40.0v).

Set everything on your amp to 0 or as far down as they go.

disconnect your sub from the amp, play a 50 hz test tone recorded at 0 db.

test the voltage of the amp while this tone is playing (put the DMM probes in the speaker terminals)

You need the voltage to be = to or close to:

the ## of watts you want to put out DIVIDED by your sub's ohm load

Take that number and square root it.

This is the number you want your amp's output voltage to be at.

Once you have your gain set, play a test tone (recorded at 0db) of where you want your subsonic filter to be at. While playing, raise your subsonic filter until your amp's output voltage is affected (starts to lower).

To set your highpass, play the tone you want your highpass to be set at, and lower your highpass until the voltage is affected (lowers).

Click to expand...

that really helped alot. ive had this explained to me before but yours helped the most