helomech,
REL uses a Class AB in their G1 MKII and some of their other subs, but Class D in their No. 25, 212/SE, S/812, Carbon Limited, and S/510.
REL uses a Class AB in their G1 MKII and some of their other subs, but Class D in their No. 25, 212/SE, S/812, Carbon Limited, and S/510.