voltmeter with an osiliscope

[krnnamja83 10+ year member]

where can i find one? are they expensive? where can i rent or borrow one? how the heck do i use one if i find one?

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[Abunai 10+ year member]

I don't think they exist as a combo, but correct me if I'm wrong.

Voltmeter's arn't very expensive, you can get them at Home Depot or Circuit City, they are around $15 for the cheap ones.

 

[maylar 10+ year member]

Every auto technician or stereo freak should have a good DVM. Radio Shack , Sears, Home Depot... take your pick. Under $25.

An oscilloscope can be had from eBay but if you don't have a clue then you're better off finding a bud who has one and knows how to use it. Too complicated to explain here.

 

[krnnamja83 10+ year member]

so if i want the proper gain adjustment...i should just take a voltmeter connect it to the speaker wires and match it up with the volt from the sub rca output of the hu?

so if my rca voltage is 2.5v and i set the volume at 3/4 to adjust it...i should juss adjust it to 3/4 of 2.5v???

 

[audiolife 5,000+ posts]

u don't need the osciliscope if u are not gonna set up a huge system or a comp system. the simple 3/4's volume on cd player with gain turned all the way down then turn up the gain until it starts to distort then back it off about 1/8 of a turn.

 

[krnnamja83 10+ year member]

i dont know how the sound of subs distorting sounds like

my headunit sets the lpf crossover at 80hz so how does distortion on a sub sound from below there?

 

[audiolife 5,000+ posts]

it sounds bad with the 1/8th turn down takes into account for a royal bad distort of a clip usually...aka woofers pop

 

[krnnamja83 10+ year member]

i've turned ma amp up quite high on the gain....and couldnt notice any particular sound...it juss stopped getting louder at a point but beyond that...it didnt make any weirder noises

 

[audiolife 5,000+ posts]

at the point it gets loudest back off 1/8th turn this also compensates being able too turn your cd player volume up a lil louder than 3/4's

 

[krnnamja83 10+ year member]

well ill do as you say besides the turning back 1/8 turn since i dont turn up beyond 3/4 the volume control..

one step beyond 3/4 and things start to rattle and i dont have money for dynamat yet

 

[audiolife 5,000+ posts]

trust me turn it back lol

 

[krnnamja83 10+ year member]

aye aye captain