meade916 Posted December 23, 2011 Report Share Posted December 23, 2011 Tested a DD-1 next to my scope. DD-1 = on point o-scopes must be a "gimmick" too. Quote All SMD products + MORE available at my store here! https://wccaraudio.com/ Subscribe to My Youtube Channel! Over 1,000,000 subscribers strong! Turn on your notifications! http://www.youtube.com/meade916 Follow My Instagram! Daily live feeds from the shop, exclusive content way before it hits my Youtube channel...and little squares with photo's in them http://www.instagram.com/meade916 The Official SMD Facebook fan Page https://www.facebook.com/SteveMeadeDesigns/ Follow my Tweet (Twitter) http://www.Twitter.com/meade916 Link to comment Share on other sites More sharing options...
meade916 Posted December 23, 2011 Report Share Posted December 23, 2011 Just a quick couple of notes: 1. LEDs operate on DC 2. There is no such thing as "an LED made for AC" per the yahoo explanation 3. His LEDs light up with AC from his amp because an LED is a DIODE... a Light Emitting Diode. = L.E.D. When you pass AC through a diode you get DC. This DC is what lights his LEDs 4. The Distortion Detector (DD-1) doesn't care about DC voltage. 5. Clipping is not DC voltage. Clipping is a when an AC voltage sine wave runs out of room to get any bigger and gets flattened off or "clipped" off at the top and bottom of the waveform, hence the name "clipping" 6. The Distortion Detector (DD-1) doesn't try to measure "clipping" THIS. Quote All SMD products + MORE available at my store here! https://wccaraudio.com/ Subscribe to My Youtube Channel! Over 1,000,000 subscribers strong! Turn on your notifications! http://www.youtube.com/meade916 Follow My Instagram! Daily live feeds from the shop, exclusive content way before it hits my Youtube channel...and little squares with photo's in them http://www.instagram.com/meade916 The Official SMD Facebook fan Page https://www.facebook.com/SteveMeadeDesigns/ Follow my Tweet (Twitter) http://www.Twitter.com/meade916 Link to comment Share on other sites More sharing options...
Trey_Dog650 Posted December 23, 2011 Report Share Posted December 23, 2011 Tested a DD-1 next to my scope. DD-1 = on point o-scopes must be a "gimmick" too. of course! why you think i dont have one in all seriousness i cant wait ill i have the money saved to get one Quote 13 Kia Forte Build! 07 Hyundai Accent Build ***Super Seller*** N8ball2013 And then he gets to say ok all you guys were right. im sorry for being a dummy poo poo head. Link to comment Share on other sites More sharing options...
bassahaulic Posted December 23, 2011 Report Share Posted December 23, 2011 How does the DD-1 determine when distortion starts? Quote Link to comment Share on other sites More sharing options...
meade916 Posted December 23, 2011 Report Share Posted December 23, 2011 How does the DD-1 determine when distortion starts? i thought you and your film crew had that part figured out? Quote All SMD products + MORE available at my store here! https://wccaraudio.com/ Subscribe to My Youtube Channel! Over 1,000,000 subscribers strong! Turn on your notifications! http://www.youtube.com/meade916 Follow My Instagram! Daily live feeds from the shop, exclusive content way before it hits my Youtube channel...and little squares with photo's in them http://www.instagram.com/meade916 The Official SMD Facebook fan Page https://www.facebook.com/SteveMeadeDesigns/ Follow my Tweet (Twitter) http://www.Twitter.com/meade916 Link to comment Share on other sites More sharing options...
audiofanaticz Posted December 23, 2011 Report Share Posted December 23, 2011 roflmao Quote Link to comment Share on other sites More sharing options...
bassahaulic Posted December 23, 2011 Report Share Posted December 23, 2011 How does the DD-1 determine when distortion starts? i thought you and your film crew had that part figured out? Wow, great response. Thanks for the insight. Quote Link to comment Share on other sites More sharing options...
SQMonte Posted December 23, 2011 Author Report Share Posted December 23, 2011 Just a quick couple of notes: 1. LEDs operate on DC 2. There is no such thing as "an LED made for AC" per the yahoo explanation 3. His LEDs light up with AC from his amp because an LED is a DIODE... a Light Emitting Diode. = L.E.D. When you pass AC through a diode you get DC. This DC is what lights his LEDs 4. The Distortion Detector (DD-1) doesn't care about DC voltage. 5. Clipping is not DC voltage. Clipping is a when an AC voltage sine wave runs out of room to get any bigger and gets flattened off or "clipped" off at the top and bottom of the waveform, hence the name "clipping" 6. The Distortion Detector (DD-1) doesn't try to measure "clipping" Thanks for the clarification Tony, EXACTLY what I was looking for. Im sure you were debating whether or not to even entertain this nonsense so I appreciate you taking time to educate the dont knows. Quote Alpine CDA-117...Memphis 16-X03 CDT Audio SQA-4100...SEAS Prestige H1396...Crescendo MP-6 Soundstream Rubicon 1.2500d...Digital Designs 3512f Link to comment Share on other sites More sharing options...
Decaf Posted December 23, 2011 Report Share Posted December 23, 2011 (edited) How does the DD-1 determine when distortion starts? this has been explained numerous times, twice by Tony iirc before the unit was released to the public and by me earlier in the thread 40hz and 1000hz are the fundamental frequencies the unit detects, anything besides those frequencies will light up the dd-1 and it takes 1% distortion or more for the LED to become fully bright. this is why he repeatedly says the DD-1 does not detect clipping, it detects TOTAL HARMONIC DISTORTION. THD = sum of harmonic power/fundamental power in this picture you would add up all the signal db coming from frequencies above 40hz (high order harmonics) and divide it by the fundamental freuquency 40hz signal db to determine THD. i would guess pictured is between 5-15% distortion without measuring Edited December 23, 2011 by Decaf 1 Quote Link to comment Share on other sites More sharing options...
TonyD'Amore Posted December 23, 2011 Report Share Posted December 23, 2011 Just a quick couple of notes: 1. LEDs operate on DC 2. There is no such thing as "an LED made for AC" per the yahoo explanation 3. His LEDs light up with AC from his amp because an LED is a DIODE... a Light Emitting Diode. = L.E.D. When you pass AC through a diode you get DC. This DC is what lights his LEDs 4. The Distortion Detector (DD-1) doesn't care about DC voltage. 5. Clipping is not DC voltage. Clipping is a when an AC voltage sine wave runs out of room to get any bigger and gets flattened off or "clipped" off at the top and bottom of the waveform, hence the name "clipping" 6. The Distortion Detector (DD-1) doesn't try to measure "clipping" Thanks for the clarification Tony, EXACTLY what I was looking for. Im sure you were debating whether or not to even entertain this nonsense so I appreciate you taking time to educate the dont knows. Quote Link to comment Share on other sites More sharing options...
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