Whats the diff. between the Beta/Gamma?

[^Adam^]

ive just installed a becker mexico pro instead of the standard gamma unit.

looks very standard and sounds great. got the red/blue version as well.





will get some pics up at night to show the illumination.

I paid £250 for it second hand, which is slightly above its normal second hand value of approx £230, but its in perfect conditon, box, manual etc.