Some drive sounds can get very bright on full gain, especially if you're playing on a particularly powerful amp into a raging a 4x10 cab with a tweeter. Therefore, we designed "Dark Horse" to roll off the high end as you increase the gain knob, keeping the same level of high frequencies, no matter where the gain is set.
If you haven't already, be sure to check out SpectraDrive Bass Preamp here: http://bit.ly/spectradrive
Learn more about the TonePrint here: https://www.tcelectronic.com/toneprints/toneprint-specific-artist/spectradrive-toneprints/spectradrive-tubedrive-tc-electronic-dark-horse#googtrans(en|en)