Hi folks!
First post here, though have visited often. It was Amir’s review of the Purifi amplifier plus positive word of mouth here that convinced me to order one, as I couldn’t stretch to a Benchmark AHB2. Ordered the EVAL1 ‘kit’ plus the Ghent case. Very pleased with it indeed, but now turning to getting the best out of it.
First question is, should the provided wiring between J1 on the smps and J1 on the EVAL1 board be twisted? I assume not as on pictures of the Purifi demonstration amps I don’t see this done.
Secondly; speaker cable. I’ve ordered some Canare 4S11 Star-quad speaker cable, but am unsure as to the best way to solder it up. Is there likely to be a performance difference between using either the 2 pole or 4 pole speakon connector and plugs?
The Ghent case I have came with the 4 pole Speakon connectors, so I assumed a 4 pole connector would be best, but then I came across this from the Benchmark website (I know the two amps are not the same, but assume if it was needed to use all four poles, Benchmark would have done so):
“The plug used on this cable is a two conductor Neutrik NL2 SpeakON™ connector. It is compatible with the four-conductor NL4 jacks on the back of the AHB2 power amplifier. The NL4 jacks provide two additional contacts (+2 and -2) but these extra contacts are only needed for some bi-amp applications. Use this 2-pole cable for stereo and bridged mono applications.”
Lastly, would I use the clear and clear red Star-quad wires for one banana plug, and the red and white for the other banana plug? Or should it be clear red & red, and clear & white on the other plug... or doesn’t it matter?
Cheers!
John