You can watch the entire presentation or choose the topic:
· Jack & TRS
· XLR-3 & RCA
· Balanced / Unbalanced
Hi! My name is Israel, my friends call me “Isra” and I’m
not a fan of cables or connections. In my band I tried
to avoid this topic for years!
Its great to know some basics for those who are
interested and for those who not (like me), it is an
opportunity to understand your sound engineers o
Before to continue (if you didn’t realize it) my native
language is Español, so I’ll do my best to teach you
what I've learnt.
A cable is most often two or
more wires running side by
side and bonded, twisted, or
braided together to form a
It is used a conductor of
electric currents, generally
made of copper.
Called “instrument cable”,
quarter inch or TS, is a
It has to be as short as
possible to prevent from
noise or distortions.
It can be used in two different ways:
1) Stereo unbalanced: like 2 jacks in 1.
2) Mono balanced: to minimize noise.
Xternal Live Return or canon, it has
3 conectors. The standard mic cable.
Like the TRS mono, it is balanced.
The name derives from the Radio
Corporation of America, which
introduced the design.
3 cables: 2 audio and 1 video.
Balanced / Unbalanced
Unbalanced: There’s a conductor inside the cable
wich transports the signal and other using the shield.
Balanced: There are two identical wires carrying the
audio signal, with a third conductor (foil or braid) that
acts as a shield. One wire is in phase with respect to
the source signal, the other wire is reversed in polarity
(180° out of phase at all frequencies).
For video and
1: Invest in high quality cables.
2: Use short unbalanced cables.
3: For long distances, use a direct box to
convert unbalanced in balanced cables.
XLR cable is named 3 because there are other
If you have some recommendation or things for me to
improve, feel free to ask me or give your suggestion. It
is my first english presentation, so you can help me
improving a lot watching and critiquing!