This two from Dharmatma sure is joy to dance along depends on ones mood:
http://youtu.be/lvTgPoFdUQ4
http://youtu.be/y9-V41jFOTE
So, you're quite an audiophile I see. I still sometime swish a sword or keris to tell whether they are well balanced or not. When the overall sound is groovy with clear and crisp highs, rich vibrant mid tones and deep smooth bass (without being overwhelming), I can tell it is well-build