Yet Another Comparison of DD-1 to a Nice Oscilloscope

[eCrack.net]

In this video I compared the DD-1 to my Fluke 123 Scopemeter... or rather verified the waveform vs when the DD-1 detected distortion. The results are within.

[Airborne]

wow, and if anyone ever priced that scope they know that their dd1 is a bargain and WORTH IT!

[Noel989]

1500$ for your scope? Wow

[SnowDrifter]

Nice video!

For the haters: The dd-1 kicks in at 1% THD. It is possible to see something lower than that (say .5%) like what you observed. The unit works perfectly as advertised: pick up a certain percentage of distortion and notifies you. It doesn't kick in at exactly the slightest bit above 0% distortion. And that's just not practical

[mmets]

I have used a DD-1 for the past couple years. Before that I really didn't have a clue. There are other ways to set gains I would agree but you cant go wrong with a DD-1 if you use it correctly and I wouldn't use anything else. Great video!

[Chris Hammer]

If it kicked in at any sign of distortion Audiopipe users wouldn't be able to use the dd-1 hehe just poking fun, DD1 is a great tool, love mine, wont get rid of it. I use it on my home receiver too. surprising how loud it get before the light kicked on.

[eCrack.net]

Thanks gentlemen. I'm glad you liked it. The DD-1 is a good piece of equipment and for the price would be very difficult to beat. The industry needed a tool like it badly. On the negative side, I believe it was a mistake for them to include the -15db and -10 db tones or whatever they were. -5 is about as low as you would want to set. We're not worried about losing some "potential" on music. We're worried about setting our maximum ceiling on our equipment so that it never exceeds its limits. THAT is the objective. Not trying to get every last watt out of every note in every song. That's simply not possible and should not be attempted.

[corona_jeff]

Great, vid. Personally I have both a tpi 440 and a dd1, both are usefully, but when I set gains, the tpi is more of a high dollar dmm

[matt14]

Really like the video sir.

[meade916]

Thanks gentlemen. I'm glad you liked it. The DD-1 is a good piece of equipment and for the price would be very difficult to beat. The industry needed a tool like it badly. On the negative side, I believe it was a mistake for them to include the -15db and -10 db tones or whatever they were. -5 is about as low as you would want to set. We're not worried about losing some "potential" on music. We're worried about setting our maximum ceiling on our equipment so that it never exceeds its limits. THAT is the objective. Not trying to get every last watt out of every note in every song. That's simply not possible and should not be attempted.

-10 is usually only used on subwoofers...and is perfectly fine, if you need that. For most people, -10 on subs and -5 on the mids and highs is perfect. Our DD-1 PLUS technology, that is in the AD-1 and someday to be it's own unit, has customize-able overlaps from 20db down. You will be able to choose -3 or -9db for example, if you wanted to. Anyway, when setting gains, whether it is a scope or a DD-1.... 0, -5, and -10 have been standard overlap choices for years. -15 is kinda pushing it but we put it in there anyway, just in case.

Thanks for the video!