So what exactly is the comparison depicted on the graph?
The frequency response comparison has been specifically designed
to be as fair of a comparison as possible. The setup is a 4 channel
audio system that uses a cd player, a pair of 2-channel amps, and
2 pairs of coaxial 5.25" speakers. 2 channels are hooked up
with our competitors cable, and 2 channels are hooked up with our
The sets of cable are all identical in length and gauge. The Pear
Cable side utilizes Comice Silver Interconnects, Comice Speaker
Cable, and Comice Power Cable. The "Other Cable" is major
name brand "high quality" cable. The interconnect pairs
are both 5 meters long and utilize shielded twisted pair configurations.
The speaker cables are all 14 foot long 12 gauge runs. The "Other
Cable" speaker cable is a standard 12 gauge zip design, whereas
the Comice Speaker Cable is a 12 gauge cable utilizing a unique
6 conductor configuration. Finally, the amplifiers are both hooked
up using 2 foot runs of 8 gauge power wire.
The measurements were taken with a digital storage oscilloscope
at the speaker terminals. Because this system utilizes just 5.25"
coaxial speakers, the low frequency roll-off can clearly be seen
in both cases, but this has nothing to do with the cables. This
is due to the fact that the system was not designed to play low
frequency bass, and cuts that information out.
One final important note is that the frequency response of cables
will not, of course, give all the information about how they will
sound. However, it will demonstrate the basic accuracy of the cables.
Other factors such as cable vibration, noise, etc. will not show
up in a frequency response plot, but are still important. Pear Cables
are designed to deal with all of these factors.