This simple footswitch is designed to work with three Markbass heads the TA501 TA503 and LMK. For the the first two one switch controls the mute function while the other actives the EQ bypass. When used with the LMK head the footswitch gives you an on/off switch for each channel … $29.99 - Buy online
2-button footswitch with TRS cable. Works with the following Ampeg amps: SVT2PRO, SVPPRO, SVT3PRO, BA210SP Combo, and BA115SP Combo. $49.99 - Buy online
The versatile RF-II can also be used with discontinued GK models such as the 250ML. Includes a 15', 1/4" TRS cable. 2-year warranty. $59.99 - Buy online