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TonyD'Amore

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Posts posted by TonyD'Amore

  2. Am I doing something wrong here?

    in SMD Distortion Detector (DD-1) Topics

    Posted

    Both done with -0db tracks, full volume on head unit. Off of the RCA cables right before amps.

    I am looking for a portable scope.

    .__480_271_IMAG0180.jpg

    .__480_271_IMAG0178.jpg

    I am told the range for being off is +/-0.1 20hz and +/-0.5 at 10khz

    Edit

    I found a fluke 863 graphical multimeter

    .__480_271_IMAG0201.jpg

    .__480_271_IMAG0203.jpg

    So what happens when you leave the headunit connected to the amplifiers and measure with the included harness at the speaker connectors of amplifier and use a -10dB track?

  3. LED's vs. DD-1

    in SMD Distortion Detector (DD-1) Topics

    Posted

    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.

    :good:

  4. LED's vs. DD-1

    in SMD Distortion Detector (DD-1) Topics

    Posted

    Also, that little LED board in the video is made for 12V DC, likely having an appropriate reverse voltage blocking diode before the LEDs on the board as well some resistors for current limiting. Do not try to connect an LED by itself to your amplifier's outputs. Without a reverse voltage blocking diode and appropriate current limiting resistors or circuits you will destroy your LEDs.

  5. LED's vs. DD-1

    in SMD Distortion Detector (DD-1) Topics

    Posted · Edited by TonyD'Amore

    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"

  8. My SMD DD-1 Just Arrived!

    in SMD Distortion Detector (DD-1) Topics

    Posted

    Well love the DD-1 so far just sad now that I know I need to get a head unit. I hooked the DD-1 up to the head unit first at 40Hz and about lvl 3 on the volume the distortion light came and no signal light. So I tried a -db no go either so I tried 1kHz worked fine. So then I tried from the amp same results 40Hz bad 1kHz ok up to lvl 28 of 35 not the best but probably cause I have a factory head unit with a cheap Wal-Mart high to low converter. So it is either converter or the head unit probably the converter but I need a new head unit anyways. I tried on my other car on a JVC head unit and worked great both 40Hz-1kHz where 48 of 50. Looking forward to redoing my car as time/money permits and seeing what good sound really is since I thought my crap that I now know is bad sounded great. I know now why I never could set it with the TPI-440 and the shine-wave was always crazy. Thanks again Steve, Tony, and Juan for a great product, looking forward to the CC-1 and if not too pricey the AD-1 to play with. :drinks:

    Those line level converters are really starting to show their ugly heads with the DD-1. Some of them distort the low frequencies pretty bad. Someone needs to invent a proper one. Hmm

  9. DD-1 Makes Noises

    in SMD Distortion Detector (DD-1) Topics

    Posted

    now i am even more confused. Your video shows it sitting on top of what looks like a Behringer crossover, in teh dark, in your car.

    like i said bro, make a video, start ALL OVER AGAIN, and show us, in the LIGHT what is going on. Take pictures and post them if you dont want to make another video. The problem is not clear at all and we cant blame the DD-1 yet. You may, of course, still send it in and we will test it though. :good:

    Here you go my good sir!

    I forgot to add that I checked the clip light with a friend's Oscope and that when I first got it - it worked just fine in my car. Now it does this no matter what. (I didn't drop it or anything. All my toys are treated quite well)

    Any updates?

    http://www.youtube.com/watch?v=txVwHiPnimA

  10. DD-1 Makes Noises

    in SMD Distortion Detector (DD-1) Topics

    Posted

    now i am even more confused. Your video shows it sitting on top of what looks like a Behringer crossover, in teh dark, in your car.

    like i said bro, make a video, start ALL OVER AGAIN, and show us, in the LIGHT what is going on. Take pictures and post them if you dont want to make another video. The problem is not clear at all and we cant blame the DD-1 yet. You may, of course, still send it in and we will test it though. :good:

    Here you go my good sir!

    I forgot to add that I checked the clip light with a friend's Oscope and that when I first got it - it worked just fine in my car. Now it does this no matter what. (I didn't drop it or anything. All my toys are treated quite well)

    Any updates?

    http://www.youtube.com/watch?v=txVwHiPnimA

  11. DD-1 Makes Noises

    in SMD Distortion Detector (DD-1) Topics

    Posted

    now i am even more confused. Your video shows it sitting on top of what looks like a Behringer crossover, in teh dark, in your car.

    like i said bro, make a video, start ALL OVER AGAIN, and show us, in the LIGHT what is going on. Take pictures and post them if you dont want to make another video. The problem is not clear at all and we cant blame the DD-1 yet. You may, of course, still send it in and we will test it though. :good:

    Here you go my good sir!

    I forgot to add that I checked the clip light with a friend's Oscope and that when I first got it - it worked just fine in my car. Now it does this no matter what. (I didn't drop it or anything. All my toys are treated quite well)

    http://www.youtube.com/watch?v=txVwHiPnimA

    Try connecting the black wire from DD-1 to the (-) speaker terminal. Also try a -5 or -10dB track to see if the problem persists. What is your source unit? Are you using the supplied CD or has it been ripped?

  12. DD-1 Makes Noises

    in SMD Distortion Detector (DD-1) Topics

    Posted

    When I was setting my amp the other day, I noticed the amp made a buzzing noise as soon as the red light came on the DD1. Thought it was pretty interesting.

    Edit: Just watched your video, same buzzing noise I heard. Wonder if it was really the amp or my dd1. I will need to double check tomorrow.

    Class D amplifiers are notorious for doing this, as well as messing up your radio reception and making garage door openers not work lol.

  14. DD-1 Makes Noises

    in SMD Distortion Detector (DD-1) Topics

    Posted

    I wonder if I got a faulty unit?

    I just got home and tried it on the setup I originally used it on (a car) and now the distortion light comes on at all levels whether I use the speaker wire coming out of the HU, the RCAs or the amp - the distortion light comes on.

    I was using track 1, all filters on deck and amp set to full pass, I turned the gain on my amp almost all the way down, hooked the black lead to the ground wire and the positive one to the + speaker terminal and the distortion light comes on at any volume level (before the 40hz light even illuminates).

    Odd because I set this with the DD-1 when I first got it an I found my max undistorted volume on the head unit to be 24/34. It's like it stopped working. I also tried a fresh battery and it did nothing.

    This doesn't sound right, please send the unit to us as soon as possible. We will take care of it and get it right back to you.

    D'Amore Engineering

    340 Paseo Camarillo #202

    Camarillo, CA 93010

  15. DD-1 Makes Noises

    in SMD Distortion Detector (DD-1) Topics

    Posted

    I have 2 problems

    Red probe to positive, negative to amp chassis.

    When the distortion light comes on, it makes a purring sound (regardless whether my setup or in a car setup)

    Is it normal to make this sound?

    And the distortion light comes on when I turn the volume down, or if I turn it up too much (but not when the volume knob is in the center)

    Here is a video of my problem

    http://www.youtube.com/watch?v=wl9JnmqPWGA

    [/quote

    Which amplifier brand and model do you have? Which track were you using?

  19. Need help with setting gains but with a Epicenter?

    in SMD Distortion Detector (DD-1) Topics

    Posted

    Connect the DD-1 to headunit's RCA output. Make sure bass, treb, and eqs and crossovers are off. Play the 40Hz -0dB track. Turn the volume up until you see distortion and note the max volume of the headunit.

    Now leave headunit volume to max volume setting found from 1st step. Set epicenter effect level to where you think it will be used. Connect headunit output to epicenter input. Connect epicenter output to amplifier input. Connect DD-1 to amplifier speaker outputs. Turn amplifier crossover to highest frequency. Play 40Hz -10dB track. Adjust gain on amplifier until you see distortion, then back off a little until it's gone. Done.

    If you have problems with this let me know. The epicenter creates distortion to do what it does so it may or may not work. Please let me know!

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