Aiyima A07 Max Bode and THD testing with QuantAsylum QA403

This video 'Aiyima A07 Max Bode and THD testing with QuantAsylum QA403'. I will show how I setup the testing for the QuantAsylum QA403, and run the Bode Plots over different input levels. #QA403 #quantasylum #Aiyima #A07max
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[@ELECTROxigeno76.]

That combination of a good progressive rock t-shirt with all your excellent measuring equipment Congratulations Greetings from Mexicali Baja California Mexico. 🎩

[@KissAnalog]

Thanks so much! Great to hear from our friends in Baja!

[@GlennHamblin]

Great video, awesome to understand the effects of input level on gain and harmonics. Thanks for the awesome explanation and video!

[@KissAnalog]

Thanks so much Glenn! I plan to do a deep dive in a bunch of popular amps - just to see what differences there really are.

[@versace885]

HI Eddie, awesome video, great tutoring. I really appreciate the time you take doing these informative videos. Thank you sooo much. 👏

[@KissAnalog]

Glad you like them! Thank you!

[@jakubczajka4275]

Another great video about measurements. Have you managed to figure out and eliminate the source of that noise at the input (around 4-5 minutes)? Looks like QA403 is a quite capable device with a decent user interface. Please keep testing distortion vs. amplitude in the future.

[@KissAnalog]

Thanks for asking. I did try to clean up my measurements as much as practical, and I am going to do a deep dive to see what I can find. More to come;)

[@JasonsLabVideos]

Thats a nice unit you got there My American buddy :)

[@MrMersh-ts7jl]

Easy there, this is all ages!!

[@jasontimothywells9895]

​@@MrMersh-ts7jlhahahahahahahaahahahaHHHHHHA 😂🤪 u did him like a buttercup . Thanks for the laugh and keeping me from being crass . I'm a lonely pissed off american without a unit 😂

[@KissAnalog]

Thanks my Canadian friend. I got my QA401 from Jason;)

[@JasonsLabVideos]

@@KissAnalog HA HA Yup !

[@XX-121]

i don't know why people keep buying these chinese chip amps. they never hit rated power and always have all that distortion. wonder if they have them ramp up the high frequencies on purpose so old guys with their fading hearing hear the higher frequencies better and think that it's "clean" sounding when really it's just boosted highs. and depending on your speakers and source that could really put unneeded stress on your tweeters especially with sacd or some of those badly mastered high-res recordings where they leave all that high frequency distortion in it. (you can see some of the ones i'm talking about on the audio science review youtube channel)

[@jakubczajka4275]

One day I may buy one of these for myself. They are cheap, small, and good enough for system in bedroom for listening to youtube while falling asleep.

[@KissAnalog]

Thanks for your great feedback. But one thing I'd like to add - it is not just us old guys - but many don't hear that well at the high freq, so you might have something there. I plan to do a deep dive on these amps...let's see what I can reveal...

[@KissAnalog]

@jakubczajka4275 I think at half the power - they are going to be loud enough and great for smaller rooms;)

[@richardhansen469]

Wow, pretty bad. Probably like many $100 desktop amps. With those high odd harmonics I would be fatigued to listen to this Amp for very long at a time. Really bad harmonic profile.

[@KissAnalog]

Thanks for your feedback! I plan to do a deep dive in all these amps. We will see what difference there is between them;)