Not to take away anything from the enjoyment you're experiencing . . . but I thought I'd point out that the 8-ohm taps have about 6dB more voltage gain than the 4-ohm taps. There's no problem with doing this from the amplifier's standpoint, except with the possibility of somewhat increased distortion should the loudspeakers' high-frequency section present significantly less than an 8-ohm load through part of the frequency range.
But the sonic effects are overwhelmingly akin to simply cranking up the bass relative to the highs - very simply a tone control, that has frequency characteristics of the loudspeakers' crossover slope(s). The configuration of the cables themselves are unlikely to have anything except a miniscule effect when compared to this change in gain.
Again . . . if you like what you hear, that's great! For those that don't have multiple amplifier taps or loudspeaker bi-wire inputs, a very similar result could be had with a simple twist of a well-designed tone control.
But the sonic effects are overwhelmingly akin to simply cranking up the bass relative to the highs - very simply a tone control, that has frequency characteristics of the loudspeakers' crossover slope(s). The configuration of the cables themselves are unlikely to have anything except a miniscule effect when compared to this change in gain.
Again . . . if you like what you hear, that's great! For those that don't have multiple amplifier taps or loudspeaker bi-wire inputs, a very similar result could be had with a simple twist of a well-designed tone control.