Correction:

But generally, I've read that the majority of Africans who were enslaved in the USA came from West Africa {by 'came from' I mean were indigenous to-not got there by forced travel from Central Africa].

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Also, here's an online quote about Congo drums:

"We have observed a marked morphological similarity between the oldest forms of the conga drum and the ngoma drum. Likewise there are resemblances to various versions of the makuta drums. Most important perhaps is the barrel shape of the drum; moreover the fact that both the ngoma and makuta drums have heads of tacked-on cowhide makes them likely ancestors of the Cuban conga drum. The first tumbadoras had their skins or heads tacked directly to the upper opening of the shell in a manner similar to drums brought by people of Congo or Bantu origin to Cuba...

The ngoma drums, also known as palo ("stick") drums, were the instruments used in ceremonies and celebrations of the Palo Order. This religion was brought to Cuba by various ethnic groups of the Bantu peoples. The ngoma ensemble may have two, three or four drums of different sizes which together produce complicated cross-rhythms. In general these drums are barrel-shaped, although sometimes they may also be of a tubular cylindrical shape. They have a single head stretched over the upper opening while the lower end is open. The head is tacked to the wooden body of the instrument and its tone is brightened by placing it near a fire."

Source: A History of the Congas [A Cuban Perspective]