Solid core OFC vs stranded OCC copper

what do you recommend - join 8 x 20 AWG solid core strands to get 11 AWG, or join 5 x 18 AWG to get 11 AWG

@sasho - if you are using Neotech teflon coated, I would recommend 20 awg. The 18 awg can start to lose high frequency response/resolution.

However, the VH Audio UniCrystal™ OCC Copper Hookup Wire
with AirLok™ Insulation at 18 awg is superior to any of the Neotech stuff (due to the type of foamed Fluoropolymer insulation he uses. The VH Audio 18awg wire is more expensive at $6 / foot, but it’s better overall.

@auxinput,

thank you very much for support

appreciated very much 

Litz is the way to go. Cardas, Zavfino, LessLoss all use this design and process and make quality products, Zavfino is more reasonable in pricing. 

Neotech makes OCC up to 12 awg both solid and stranded ,

so why would you want solid OFC ? 

I think that from practical point 12 AWG solid core Is thick and not flexible to work with and to use. Also, for bass I like to have 11 AWG

I fear that 12 AWG solid core will be hard to bend

I am not sure though how flexible would be 8 x 20 AWG or 5 x 18 AWG

there Is a reason that some brands use smaller multi solid cores In their speaker cables