[Accord Man]

I presume they are single voice coil models.

in which case, you can wire them to 2 ohms mono, 8 ohms mono or 1 voice coil per channel (which is what you have, 4 ohms per channel).

If I was in your shoes, I'd leave it as is.. But you could try wiring to 2 ohms mono and see how well your amp takes it. But since you have one of their smaller amps, I dont think it'll be very durable.

However to maximize the sound, you could always work on the box and the placement/angle of the box. Crossovers are another thing that are worth looking at.