You may try to buy two of these http://www.parts-express.com/pe/showdetl.cfm?Partnumber=260-285
and from them go to the "spare" speakers with two runs of speaker wire. You may terminate them at the other speaker end any way you want, or hook them bare.
When you feel like using the "spare" speakers, disconnect from the Klipschorns and connect to the "free" boards. That will do without changing the original speaker cables running to the Klipschhorns at all.
and from them go to the "spare" speakers with two runs of speaker wire. You may terminate them at the other speaker end any way you want, or hook them bare.
When you feel like using the "spare" speakers, disconnect from the Klipschorns and connect to the "free" boards. That will do without changing the original speaker cables running to the Klipschhorns at all.