I need LOTS of speaker cable for my new room and can't stretch to QED silver anniversary that I currently use in the smaller room. I've decided to go with Maplins cable for now and was wondering which of the following would be the most appropriate for the High Freq & Low Freq Bi-Amped. Would I be able to run narrower gauge for the High Freq? Note that some of my runs are very long (room is 42ft long and you can't go in a straight line across the floor) I'm planning to Bi-Amp the front three and possibly Bi-Wire the Sides and Rears. What would you recommend from these? Van Damme - Professional Loudspeaker Cable Conductor High Purity non tinned OFC 1.5mm 30 X 0.25mm 2.5mm 50 X 0.25mm 4.0mm 56 X 0.30mm D.C. Resistance 1.5mm 11.2 ohms per km 2.5mm 6.8 ohms per km 4.0mm 4.3 ohms per km Price (Used Bulk Price Because of amount needed) 1.5mm 2-Core £0.90m (£89.99 per 100m) 4-Core Not Available 2.5mm 2-Core £1.37m (£136.99 per 100m) 4-Core £2.64m (£131.99 per 50m) (Bi-Wire) 4.0mm 2-Core £2.28m (£113.99 per 50m) 4-Core £4.38m (£218.99 per 50m) (Bi-Wire) Alternatively Maplins Hi-Fi Loudspeaker Cable Conductor Copper 79 X 0.20mm Max Working Voltage: 100V RMS Max Current: 18Amp Thanks, Mark.