TonyD'Amore Posted June 17, 2011 Report Share Posted June 17, 2011 why does the meter only read down to 1% thd??...ppl have said that 1% is actually high and that it should be down to .1% to be fully useful...what do you say to argue that??...and this is an actual question, not tryin to be a dick Most amplifiers on the market today would just light up the Distortion Detected LED constantly if I had set the threshold at 0.1% Quote Link to comment Share on other sites More sharing options...
shaggy Posted June 17, 2011 Report Share Posted June 17, 2011 That signal is not clipped. The spike looks to be from having a crossover on or something like that. ...did you read? At all? That was the entire point of the post. Dirty signal doesn't necessarily have to be clipping. Distortion lives in other ways. I read fine but you missed my point. The spike on the sine wave is not distortion imo but from something else like noise. I have seen this before. That distortion in the waveform is caused by a Class A/B amplifier with the output device bias adjustment (internal) set too low. This is called "Crossover Distortion". NO not Crossover as in Low Pass ect! Crossover as in where the waveform crosses the 0V point and goes from positive voltage to negative voltage. The DD-1 looks for harmonic distortion, that is anything that is a harmonic of the fundamental. What that means is if you are playing 40Hz (the fundamental), the tool looks for things that are not 40Hz, which any noise, "spikes" whatever are not going to be 40Hz because if they were they would be the same as the fundamental and you wouldn't see them at all. Harmonic Distortions of 40Hz would be 80Hz, 120Hz, 160Hz, 200Hz...ect Well there you have it . I didn't know it read harmonic distortion. I just figured it was reading the sine wave for squaring. Very cool I can't wait to get one. Quote Link to comment Share on other sites More sharing options...
fyerbyrd22 Posted June 19, 2011 Report Share Posted June 19, 2011 why does the meter only read down to 1% thd??...ppl have said that 1% is actually high and that it should be down to .1% to be fully useful...what do you say to argue that??...and this is an actual question, not tryin to be a dick Most amplifiers on the market today would just light up the Distortion Detected LED constantly if I had set the threshold at 0.1% so it is 100% ok to only read to 1%??...i dont think MY amps have a lower thd than 1% but im still interested Quote personal build in progress http://www.stevemeadedesigns.com/board/topic/188656-2013-kia-sorento-6-12-no-wall/ www.facebook.com/TurbulentDesigns Link to comment Share on other sites More sharing options...
Bacy2k Posted June 25, 2011 Report Share Posted June 25, 2011 why does the meter only read down to 1% thd??...ppl have said that 1% is actually high and that it should be down to .1% to be fully useful...what do you say to argue that??...and this is an actual question, not tryin to be a dick i think that you're thinking of the amplifiers rating. not of actual distortion. Quote Alpine CDA-9886Hertz Mille 3 ways active Hertz SPL Show 8's 2 Audison Voce Quattro's2 DC Audio M2 Level 5 12'sDC Audio 12.0KKnuKonceptz Wiring4 XS Power D3100'sDC Power 390XPSecond Skin Damplifier Pro and Dynamat Xtreme Link to comment Share on other sites More sharing options...
dohckiller808 Posted June 25, 2011 Report Share Posted June 25, 2011 Is the manual posted anywhere? Also wondering how much watts can you shove into this before it fails? Quote Link to comment Share on other sites More sharing options...
dohckiller808 Posted June 26, 2011 Report Share Posted June 26, 2011 Anyone? Quote Link to comment Share on other sites More sharing options...
homiewes Posted June 26, 2011 Report Share Posted June 26, 2011 one of the greatest inventions in the car audio field Quote My youtube channel, please subscribehttp://www.youtube.com/ballinblaza Link to comment Share on other sites More sharing options...
woodzyspl Posted June 26, 2011 Report Share Posted June 26, 2011 Anyone? i asked same thing on youtube..was something stupid like 300,000watts LOL i don't fully remember but you wont blow it..trust me. im excited to get it Quote AUSTRALIA do i need say more? HU: some crap pionee AMP: dc 9k @ 18v SUB: 4 elevation audio sqx 12" Battery: 2 neuton power 8200d burp setup for fun 152's soon to come: rebuilt soundstream xxx (2 18" OR 3 15" wall) Bunch speakers, more batts and new HU Link to comment Share on other sites More sharing options...
dohckiller808 Posted June 26, 2011 Report Share Posted June 26, 2011 Was that a real answer or was someone just messing around? Quote Link to comment Share on other sites More sharing options...
Ray Posted June 26, 2011 Report Share Posted June 26, 2011 176volts. You wont ever get that so dont worry Quote 2008 California state record holder 157.2 Bassrace2009 California state record holder 157.0 BassraceRollin 50's 158.7db2009 King of Cali Bassrace2009 USACi score 160.5 @ 42hz Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.