I use it for two and a half years on 15 kappa lfa br in all filtered by a t.racks ds 2/4 40-116 hz.La is round and punchy bass
I bought it after a trial sonomag.Il is a bit more than advertised power 2 * 565 w into 8 ohms and 900 into 4 ohm. It works fine on my boxes, it heats a little but nothing too serious, speed 2 takes over if it ever monte.En a speed, it is quite discreet.
IT is ab class with 2 * 8 transistors per channel, for the 40,000 mf filter per channel and a large ring of 1.2 kva for food and for the power it weighs 20.5 kg.
I like the sound, the LEDs that speaks of his condition, bridge speakon in, built-in filters, the overload clutch and daisy chaining.
I recommend it for subwoofers in 15 inches, and full range speakers for good power.
the quality / price I paid (2009), 419 euros it will, but right now without at least to 28/07/12 549 euros less, I think too expensive, I would prefer the t amp 2400 mk-x 290 euros for a chouille more power.