@sjeesjie,
You can use 24AWG speaker wire but I would advise against it. Dynamic speakers, in general, have their lowest impedance at low frequencies and small gauge wire will result in reduced bass. The solution is to use larger gauge wire. 14AWG speaker wire should be more than adequate for most applications.
The issue of generic vs "boutique" is a separate issue and not relevant for this discussion.
You can use 24AWG speaker wire but I would advise against it. Dynamic speakers, in general, have their lowest impedance at low frequencies and small gauge wire will result in reduced bass. The solution is to use larger gauge wire. 14AWG speaker wire should be more than adequate for most applications.
The issue of generic vs "boutique" is a separate issue and not relevant for this discussion.