↑ aaaBasque contrasts two consonants that sound similar to the /s/ of Englishː /s̺/, which is apical, and /s̻/, which is laminal. Similarly, /ts̺/ and /ts̻/ are contrasted in the same way.
↑/x/ is frequently heard due to its prevalence in Gipuzkoan but the realisation of the grapheme j varies depending on dialect and includes [j, ʝ, ɟ, ʒ, ʃ, x, χ]. The last, which resembles Scottish English loch, is typical of Gipuzkoan and the dialect of Gernika.
References
Trask, Larry (1997), The History of Basque, Routledge, aai॰aऍsa॰abee॰aऍna॰0-415-13116-2
Hualde, J. (1991), Basque Phonology, Routledge, aai॰aऍsa॰abee॰aऍna॰0-415-05655-1