Thanks man I really appreciate this video I have the same multimeter is you and everything and was having difficulty getting any sort of voltage reading because I was in DC not AC so good video man thanks
Oscilloscopes don't lie. When set up properly for they can tell you A LOT about what going on in the circuit. A bit of set up time, and how easy was it to find where the signal was clipping at? A good understanding of electrical theory can save you a lot of headaches, and potentially get you out of trouble when your installation didn't quite go as planned.
Good stuff bro, but I think your battery in your digital multimeter is old or maybe the unit is not getting a good reading. Cause on your oscope you were getting 3 volts rms at volume 32. At 33 it was 3.65vrms but it was a clipped signal. I’d trust the oscope reading over a dmm. But maybe I’m looking at it wrong.
FOR SURE BRO!!! I used the oscope for a visual demonstration, but most people won't have oscopes😁 they'll just have to clip detectors😂! So if a person knows it what volume they're clipping and they have a multimeter this process will work perfect for them. For all of us who have old scopes this process is unnecessary because as you said, the reading is right there!!!
74 Midwestbass fa sho!! I’m building a box right now for 4 12’s for Saturday show in Sacramento CA. First spl show this year for me. Gonna be wired at half ohm on that Brutus 2.4k . I’m hoping I put up a good score. You plan to hit any shows this year?
Yes sir! You would check them the exact same way! The only way the voltage would decrease is if your using very cheap rca cables. The standard cables from Sky high car audio worked perfectly and they're under $10
Thanks for posting this. I am a beginner: Is the volt meter the only thing connected to the preamp output (no load)? Or is the preamp connected to the power amp when you take this reading?
You find this by connecting the voltmeter to the RCA output on the back of your stereo. The pin goes in the middle is the positive and the outside is the negative
I always tuned by ear. Never really gave it a lot of thought. I work at a bike shop and our sister shop is an audio store. They been teaching me a lot. This is the best way though.
I hate to say it bro but you'll find out that the more you learn!!! That MOST installers at MOST shops are BEGINNERS and have no CLUE how to get the most out of your system!!!
okay, i have been searching information from everywhere and cant find it. on my pioneer (MVH-S320BT) has weird problem, i tried to measure that "pre out" voltage from the rca cabels and on the stereo own terminal and i get only 0.020V and i have tried other multimeters so the problem is not on tools. im sure everything is right on wiring and everything "should" be unbroken. im sure i have done everything right on measuring but sill doesnt get that 0.2V reading. i hope someone can give some answer for that. and my other problem in my amp (sd1600.1d evo4 2ohm) il have measured the out put voltage from that and i get only about 14V (AC) out, thats when the volume from stereo is 3/4 and gain is almost max but when i put some bass boost i get the max voltage out, what is promised on the amp manual. so far im thinking is that stereo low out put voltage causing low out put voltage to my amp aswell? thanks for help already!
First I would check on the stereo to make sure that the pre output gain is turned up ( If it has subwoofer output mode, it might be labeled as sub volume in the settings). If all those things are set properly and it's still doing the same thing, The most likely problem is that the stereo has a defect in it. All stereos should come with a minimum of 2 volts pre output voltage At the RCA. Without at least 2 volts coming out of the stereo rca's, the amp will never be able to produce rated power. Hope this helps!
Why such a drastic difference between the scope and DMM? The scope showed 3.65Vrms clipping at volume 33 and 3.00Vrms at 32. The DMM showed 2.5V. Which is correct?
Excellent video my brother! Now looks like it's time to get an EQ that says it's a 7 volt pre out and hopefully get 6 volt clean signal out of it!! Man they don't make them like they used to 😂😂 Much respect and Good Karma!🙏
THANKS BRO!!! I plan on continuing this series every week! I don't plan on getting too techy like the other guys just giving quick/ simple need-to-know know tips
Thank you for the easy to understand with no fluff video. Much appreciated sir.
Any time bro
Excellent video ,this is what its all about clean signal ,an know when it not ,to protect your expensive equipment.
Indeed! THANKS
Excellent video my brother damn good stuff. This is exactly what I was looking for. Thanks for taking the time to put this out.
FOR SURE BRO!!! every Tuesday but it'll be quick Tech tips!!! Also I have a pretty AWESOME SUBSCRIBER🎁 GIVEAWAY🎁 starting today!!!
Thanks man I really appreciate this video I have the same multimeter is you and everything and was having difficulty getting any sort of voltage reading because I was in DC not AC so good video man thanks
FOR SURE!!! THANKS FOR WATCHING!!!
Oscilloscopes don't lie. When set up properly for they can tell you A LOT about what going on in the circuit. A bit of set up time, and how easy was it to find where the signal was clipping at? A good understanding of electrical theory can save you a lot of headaches, and potentially get you out of trouble when your installation didn't quite go as planned.
Absolutely true!!!
Good stuff bro, but I think your battery in your digital multimeter is old or maybe the unit is not getting a good reading. Cause on your oscope you were getting 3 volts rms at volume 32. At 33 it was 3.65vrms but it was a clipped signal. I’d trust the oscope reading over a dmm. But maybe I’m looking at it wrong.
FOR SURE BRO!!! I used the oscope for a visual demonstration, but most people won't have oscopes😁 they'll just have to clip detectors😂! So if a person knows it what volume they're clipping and they have a multimeter this process will work perfect for them. For all of us who have old scopes this process is unnecessary because as you said, the reading is right there!!!
74 Midwestbass fa sho!! I’m building a box right now for 4 12’s for Saturday show in Sacramento CA. First spl show this year for me. Gonna be wired at half ohm on that Brutus 2.4k . I’m hoping I put up a good score. You plan to hit any shows this year?
@@3RDERA YES SIR!!! As soon as they start them back up I'll be competing but not demoing!!!
So how and where did you hook up the multimeter? I know RCA but where? Do you have a video of that or can you make one!
Great video. Very helpful.
For sure! Thanks for watching!!!
Thank you Bro, for the video.....
For sure
Nicely done
Thanks
Have you ever messed with the subwoofer level pre outs? I know it changes the voltage going to the amp in the trunk
Yes sir! You would check them the exact same way! The only way the voltage would decrease is if your using very cheap rca cables. The standard cables from Sky high car audio worked perfectly and they're under $10
Nicely well done good job keep up the good work doing your thang
THANKS BRO!!!
Good video! Can you show how you hooked up the two meters?
For sure
Thanks for posting this. I am a beginner: Is the volt meter the only thing connected to the preamp output (no load)? Or is the preamp connected to the power amp when you take this reading?
You find this by connecting the voltmeter to the RCA output on the back of your stereo. The pin goes in the middle is the positive and the outside is the negative
@@74midwestbass74 what kind of multimeter lead were you using?
@@tylerwebb2338 just the normal ones
Very helpful video !!
THANKS FOR WATCHING! I'VE got a subscriber giveaway going right now!
czcams.com/video/pYFvETg-E_s/video.html
Do you have to combine left and right RCA to get that 2 1/2 Volt, or can you get 2 1/2 Volt From just left signal
You don't need both you can use one or the other
@@74midwestbass74 so then I could combine left and right channels to get 5 volt ,if left is 2.5 and right is 2.5?
@DominicVBASSISLIFE Nope, it doesn't work like that, especially on a sub out
I always tuned by ear. Never really gave it a lot of thought. I work at a bike shop and our sister shop is an audio store. They been teaching me a lot. This is the best way though.
I hate to say it bro but you'll find out that the more you learn!!! That MOST installers at MOST shops are BEGINNERS and have no CLUE how to get the most out of your system!!!
Good stuff!
What ya set that on scope to? A lot of dials etc on it. Thx 🙏🏻
That's a difficult question.Because there are so many settings on it.I would have to just make a video. COMING SOON
@@74midwestbass74 sounds good.
Good info
When you check for the volts coming out of the head unit. Does all the setting need to be at zero. Or off to check the volt right.
I would set the stereo up the way it sounds the best. Then check the voltage! because when you adjust the settings it will change the voltage!
Thanks bro. I appreciate the help. Can't wait to see more of your tech Tuesday.
Your o-scope said 3v at 32 volume?
Needed a new battery
Good video
Thanks
Dope..
THANKS BRO!!! How is your build coming?
@@74midwestbass74 stop... Hold... Paused lol i had the money to buy a new amp but life happed again so im broke again
okay, i have been searching information from everywhere and cant find it. on my pioneer (MVH-S320BT) has weird problem, i tried to measure that "pre out" voltage from the rca cabels and on the stereo own terminal and i get only 0.020V and i have tried other multimeters so the problem is not on tools. im sure everything is right on wiring and everything "should" be unbroken. im sure i have done everything right on measuring but sill doesnt get that 0.2V reading. i hope someone can give some answer for that. and my other problem in my amp (sd1600.1d evo4 2ohm) il have measured the out put voltage from that and i get only about 14V (AC) out, thats when the volume from stereo is 3/4 and gain is almost max but when i put some bass boost i get the max voltage out, what is promised on the amp manual. so far im thinking is that stereo low out put voltage causing low out put voltage to my amp aswell? thanks for help already!
First I would check on the stereo to make sure that the pre output gain is turned up ( If it has subwoofer output mode, it might be labeled as sub volume in the settings). If all those things are set properly and it's still doing the same thing, The most likely problem is that the stereo has a defect in it. All stereos should come with a minimum of 2 volts pre output voltage At the RCA. Without at least 2 volts coming out of the stereo rca's, the amp will never be able to produce rated power. Hope this helps!
Why such a drastic difference between the scope and DMM? The scope showed 3.65Vrms clipping at volume 33 and 3.00Vrms at 32. The DMM showed 2.5V. Which is correct?
I’d go w the o scope RMS. No reason to use the $2 voltmeter
Excellent video my brother! Now looks like it's time to get an EQ that says it's a 7 volt pre out and hopefully get 6 volt clean signal out of it!! Man they don't make them like they used to 😂😂 Much respect and Good Karma!🙏
THANKS BRO!!! I plan on continuing this series every week! I don't plan on getting too techy like the other guys just giving quick/ simple need-to-know know tips
Just chatching up
FOR SURE BRO!!!