Help ID this Monster speaker cable

[lattiboy]

I recently came into five 15’ finished Monster Z series cables. They are finished and VERY thick and have soldered banana plugs.

I can’t figure out which of the Z series they are though. Any help is appreciated. Pictures below:

 

[restorer-john]

They appear to be from their rare Jumper Cable series, with a 300A rating and the ability to start diesel engines up to 5 litres.

 

[BattleBrat]

It looks like Z2 reference, I have Z3's and Z4's they are THICK and the Z1's don't have sheathing.

 

[NAD80]

Resolder those ends after stripping back the insulation. See broken wires in the cable. Hope you got them for cheap.