Is base drum the same as bass drum?

Yes, base drum and bass drum are the same thing. The term "base drum" is sometimes used interchangeably with "bass drum," but "bass drum" is the more common and widely recognized term.

The bass drum is typically the largest drum in a drum kit and is played with a foot pedal. It produces a low, booming sound that provides the foundation for the overall rhythm of the music. The bass drum is an essential part of many musical genres, including rock, jazz, blues, and country.