27-Jun-2016, 16:31
Simplest possible explanation may be that they will launch the 1000 first, followed by the rest. Hence, only the 800 can be upgraded initially.
Alternatively, they could be phasing out the 250 since, at the same price, the 400 offers the benefit of dual mono operation but in a casing that is cheaper for D to manufacture.
Alternatively, they could be phasing out the 250 since, at the same price, the 400 offers the benefit of dual mono operation but in a casing that is cheaper for D to manufacture.