The complete range of Quickpole boom poles QP & QS can be fitted with internal straight cabling.
Cabling kit (QPSCx-x) with especially thin, straight cable.
x in front of hyphen either M for mono wiring or S for stereo wiring, x after hyphen for boom pole type such as -4140 for boom pole QP 4140 or - QSM for QSM boom pole
The straight cable kit will be shipped incl. endpiece with flow-through sideways outlet (QAEST). Cable length is about 6 feet more than extended boom.