A few years ago there was a trend towards Bi-Wiring speakers ... the theory was that a bass driver will put a certain amount of EMF back into the crossover and this signal could get into the treble element and blur the sound. Separating the crossover into bass and treble with independant inputs and running a cable to each was the solution. This did work quite well with lower end designs, but with higher end systems with better designed crossovers and amplifiers with more bass control, Bi-wiring could actually sound worse. As is the way with trends though, manufacturers felt obliged to offer biwirings twin sockets on their speakers.
Most Biwirable speaker use 'Bus bars' to link the treble and bass inputs when being used with a single cable
These look very substantial, but are not actually particularly good conductors.
Swapping these for short bits speaker cable does improve things, but this can be very fiddly and hard to get a good connection.
The solution is to buy a dedicated high quality link like Nordosts Norse Jumper Link. Quite expensive for a short bit of cable, but they do make quite a noticable improvement which is more than worth the money
We have a loan set if you want to give some a go ..... ring to book a set on 01270 580734
Link to Nordost cables page
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