I recently picked up a gp extreme with 18in and 10in coil. Has a tracking button on the handle and came with an audio booster. Also got a SD2000 with two coils in the same $600 deal. It has two extra knobs above the balance 1 knob. Any idea what mod that would be on the SD2000? Thanks
I recently picked up a gp extreme with 18in and 10in coil. Has a tracking button on the handle and came with an audio booster. Also got a SD2000 with two coils in the same $600 deal. It has two extra knobs above the balance 1 knob. Any idea what mod that would be on the SD2000? Thanks
That will be extra gain for channel 1 and 2 , but sometimes it maybe extended ground balance range.