The Professional PA Speaker Systems of the 500 Series in a trapezoid plastic cabinet have especially been developed to meet the requirements of professional applications. They are equipped with a coated, moisture-proof cone. Professional PA speaker system, 500 W, 8 Ω * Full range system of high power capability and of very high efficiency * Robust plastic cabinet * 30 cm (12") bass speaker with diecast aluminium basket and coated cone * 25 mm (1", 44 mm voice coil) horn tweeter * Bass-reflex system * High-quality crossover network * Multi-purpose positioning and installation options * M8 threaded inserts at the top and bottom * 2 x NEUTRIK SPEAKON terminal, in/out * Stand sleeve and ergonomic carrying handle SOUNDCHECK 02/2018 “A well-equipped stereo amplifier of high power capability. For the test setup, we combined the STA-1500A with two PAB-212MK2 systems. The results were impressive. Even with high volume levels, it provided a crisp and powerful low end bass with particularly clear transients. It delivered an open, linear and well-balanced midrange. There were no audible distortions, even when we increased volume levels and the STA-1500A had to step in occasionally. After our test with the PAB-212/MK2, we were absolutely certain that this performance could by no means be equalled. However, we still decided to connect two PAB-512/BL systems [...] The STA-1500A combined with the PAB-512/BL provided such a clear and powerful sound which would normally only be experienced when using considerably larger speaker systems.”