UNOFFICIAL JEFF ROWLAND INFO DATABASE
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Generic info
Amplifiers and Speaker Binding Posts
Originally Jeff Rowland amps used strips with bolts for connecting loudspeaker cables. This worked fine for bare wire and spades but would not play ball with bananas. Also, the bolts were prone to damage after being tightened and loosened multiple times and would eventually wear out either on the head (making the screwdriver loose grip) or even in the thread. The thing is that the bolts used were US standard and are not easily available in Europe.
Later (from model 2 and 6 and onwards) they used Cardas terminals that accepted bare wire, spades and bananas.
Later still they introduced a newer Cardas design that has only one wheel by which you tighten both plus and minus. Contrary to what is being said on forums, these connectors also take bananas. You simply remove the wheel all the way so you can take off the plastic cap which will reveal that the connector tubes are actually hollow and do facilitate bananas. If you want, you can even insert the bananas sideways and still make use of the wheel for tightening. But a better solution is to remove the block and wheel and just use the tubes as you would any other banana-compatible connection.
Old style metal strip and bolt
Newer style Cardas binding post
Latest style Cardas binding post
Christiaan Punter
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