Harmonic Technology's Pro-9 Reference
(available as a mono speaker wire, internal bi-wire or external bi-wire)
is an improvement of their award-winning Pro-9 Plus speaker cable. In a
variety of lengths and terminations, the Pro-9 Reference will
accommodate any of your speaker cable needs.
The Pro-9 Reference is Harmonic Technology's finest copper speaker
cable. It uses the highest quality materials and our unique Balanced
Field Geometry to ensure the best signal transfer and greatly reduces
inductance and capacitance for extremely accurate sound. Manufactured
with 9 AWG wire that consists of the highest purity 6N copper available
(99.9997%) and their world-renowned Single Crystal design, this speaker
cable virtually eliminates all distortion and coloration. In addition,
the Pro-9 Reference uses air-tube technology to separate the conductors
within the cable to dispense with any potential cross-talk. Harmonic
Technology's Pro-9 Reference is the best speaker cable available for
large speakers and/or exceptionally powerful amplifiers.
The Pro-9 Reference allows the bass to be very tight, yet extremely
dynamic. The midrange is exceptionally rich, with tremendous detail and
harmonic completeness that borders on realism. The highs are very smooth
and detailed, without the artificial "zing" that you may have
experienced with other speaker cables. Harmonic Technology has delivered
a speaker cable that allows the soundstage to bloom as large as your
room—a holographic depth and roundness you simply must experience. The
Pro-9 Reference will easily outperform your existing speaker cables and
transform the very sound of your system.
Internal or External Bi-Wire
There are two distinct types of the Pro-9 Reference bi-wire speaker
cable—an internal and an external version—in order to accommodate your
varying needs and configurations. The Pro-9 Internal Bi-Wire
is similar to their previous Pro-9 Plus speaker cable, but it contains a
separate Woofer set and Tweeter set within one jacket. The sample shown
in the image below represents a configuration where two spades are
provided at the amp end and four spades are provided at the speaker end.
The Pro-9 Reference Internal Bi-Wire is ideal for customers who prefer
only one single jacket for each side of the speaker.
The Pro-9 Reference External Bi-Wire provides a
unique design, where Harmonic Technology has merged two separate
sets—the Woofer set in the inner circle and the Tweeter set in the outer
circle—at the amp end. This type of configuration is ideal for
situations where your speaker has a larger than average distance between
the Woofer binding post and the Tweeter binding post. The example below
indicates a configuration where two spades are provided at the amp end
as well as a spade on the Woofer binding post and a locking banana on
the Tweeter binding post.