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**SINTORMAN** · #61 03-17-2015, 01:13 AM

Quote:

Originally Posted by d77543020

And in every video I saw the light came on before the oscope showed clipping by the way I'm not arguing we are just having a discussion I'm no smd nutthugger

If the light appears before the scope shows clipping then it's detecting some other form of distortion from the original signal the dd-1 is programmed to look for. The scope shows exactly what the wave looks like. Clipping is more of a visual term than anything else because if you can't see it even slightly it's not there. Clipping is also what kills subs as causes excess heat build up without as much cooling. So even if the light somehow comes on at say 1/2 gain but it doesn't clip until 3/4 gain then run it up to 3/4 because that slight distortion will not in anyway hurt the sub...

Now this is slightly different when doing mids/highs amps but also not really since Tony himself said that on the headunit that showed distortion right away there was a very audible noise coming through the speakers making both the scope and dd-1 not necessary for seeing that the deck was messed up.

FourRings · #62 10-18-2015, 03:14 AM

I've just come back to car audio after a long time away.I worked for one of the premier shops on the east coast in the late 90's till 02 and learned from someone who was extremely well known in the industry at that time and we did just fine back then with a scope

We had quite a few installs make it to the nats too

I like the tools because they are simple but seriously a good scope is better for those that know how to use one unless you need the simplicity.I honestly might buy the one to eliminate having to do math and make things easier for customers to see and understand.Lets face it people want to see watts not math.But to act like it is the only way to do things is plain wrong.

My complaint is how they make it seem like its the only way and that really has kept me from spending the money on principle nut if I see a used one I might grab it.

As far as that distortion test video,that easily could have been in the recording of that cd.If he wanted to actually prove something he should have put the cd in another plater and redid the test.As it sits it is nothing more than smoke and mirror salesmanship.If you dont believe me,take your test tone cd and rip a few highspeed copies,each one off of the next with some cheap gear and run the test for yourself after a few copies of copies and it'll most likely add enough noise to the signal.

**graham** · #63 04-21-2020, 05:54 AM

So what's a good oscilloscope? Dso nano still relevant? What about something more expensive? I remember the screen being a bit low-res. Anything a little pricier with a nicer display?

Thinking about getting back into installing on the side due to the current situation and want to get a little more in depth and thorough.

How would I test a stock head unit's clipping point? Through speaker wires just as you would the positive and negative on an rca? It sounds like I can leave a head unit the way it is and then see where it clips with real world actual settings which makes way more sense to me. Who the **** is playing a 1kHz or 40kHz tone with all settings flat while driving? Lmao...

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