In this video I show you the best tool to set your amp gain. The camera shows the difference between the SMD distortion detectors and the Liumy Oscilloscope. Many thanks to Steve Meade for the gift. No doubt this is the best way to set your amp gain, but it is to expensive for some people. Get your test equipment here*: Thanks to https://www.youtube.com/channel/UCAn7KfxuoxUur8dP-lFCjdA https://www.youtube.com/channel/UCJQHozLKDeXTA-_W8DVaD3A https://www.youtube.com/channel/UC9GiteyeFSMlmqyBAt9oM9w for technical assistance with this video! DD1: https://bit.ly/3LvAXkn DD1+: https://bit.ly/3uU953k Liumy Oscilloscope: https://amzn.to/3Lw3g1X Calibrated Microphone: https://bit.ly/3Bka7a0 AMM1: https://bit.ly/3Lz2DET DM RTA: https://bit.ly/3Bqwr24 If you found this video helpful then you can support the channel on Patreon for as little as $3 a month: https://www.patreon.com/DIYAudioGuy If you need a coupon code to use at Parts Express you can find one at my blog: https://www.diysubwoofer.net/ Shop for Car Audio at Sonic Electronix: https://bit.ly/3bazPBs Connect with me on social media: Facebook: https://www.facebook.com/DIY-Audio-Guy-111428060245602/ Instagram: https://www.instagram.com/diyaudioguy/ Twitter: https://twitter.com/DIYAudioGuy1 Podcast: https://www.soundadviceshow.com/ DIY Audio Merch: null Chapters: 0:00 Introduction 1:15 Backstory 3:14 Scope vs DD1 Test 8:20 Understanding THD 9:20 Scope vs DD1+ on a Dirty Amp 12:10 Amp Dyno with a Dirty Amp 15:00 Recommendation *As an amazon associate marketer I may earn a small commission on qualified purchases. As an affiliate marketer I may earn a small commission when you make a purchase at Parts Express, Sonic Electronix or Down4Sound.