Amp recommended for two 12w3-d6 JL audio subs?

[Schugg]

a guy from my shop gave me 2 12w3-d6 subs and a box, ive been out of audio stuff for a while and i never really knew all the technical stuff about audio work, just how to hook it up..i was wanting to know what kinda of amp i would want to get for this, 1 or 2 channel?, how many watts, and all that. he currently has them wired like this below, except each speaker goes to its own + terminal on the box and its own negative terminal, totaling in 4 box terminals

here is my current wiring


should i do that or rewire it this way and look for an amp with these wiring settings?





if this ad i found is the same speaker here is all the info, it looks the same and has the same name, so im assuming it is.....haha

12W3-D6 12" 250w Dual 6 ohm

Nominal Diameter: 12 inches (300 mm)
Continuous Power Handling: 250 Watts
Voice Coil: 2.25" diameter, 4-layer, Kapton former
Available Configurations: Dual 6 ohm
Xmax (one-way, linear): 0.46"-0.51" (11.7-13.0 mm) depending on specific model
Sealed Enclosure Range: 1.00-1.50 cu.ft. (28.3-42.0 liters)
Ported Enclosure Range: 2.00-3.00 cu.ft. (57.0-85.0 liters)
VRCª Technology: YES