AHB2 Instruction Manual Rev F Page 40
NL4 SpeakON Output Jacks - SpeakON connectors are well-accepted in high-power pro-
audio applications, but are nearly unknown in high-end Hi-Fi applications. Our tests show
that these robust connectors provide a much more reliable connection than the binding
posts, spade lugs, pins, and banana plugs used with traditional Hi-Fi amplifiers. Distortion is
measurably lower when using NL4 connectors. These connectors provide a very reliable,
low-impedance connection. Furthermore, they are polarized and fully insulated to protect
against short circuits, polarity reversals, and shock hazards. Benchmark recognizes that the
Hi-Fi industry is slow to embrace new ideas, so we have provided traditional binding posts
wired in parallel to the NL4 jacks. But, for the highest performance, we recommend using
the NL4 jacks. The jacks accept NL4 or NL2 plugs.
In summary, Benchmark has taken a radical approach to audio amplification, has leveraged
patented technologies (licensed from THX Ltd.), and has reversed many common practices. The
result is an amplifier that is significantly quieter, cleaner, smaller, and more efficient than any
traditional design. There is nothing ordinary about the Benchmark AHB2.
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