Radial Engineering JPC User Manual

True to the Music
Radial Engineering JPC User Guide
4
DESIGN CONCEPT
The Radial JPC is a stereo direct box that has been
specifically designed for use with computer sound cards
and other consumer electronic products. The JPC allows
these devices to be connected to a professional sound
system. The JPC is unique in that it combines the
advantages of transformer-isolated inputs with an active
drive circuit, giving you the ‘best of both worlds’ in a
compact and extremely flexible stereo package.
Transformer coupled inputs have the unique advantage of
isolating the ‘source’ from the ‘destination’. This proven
approach eliminates 60-cycle hum and buzz caused by so-
called ground loops when two pieces of electrically
powered devices are connected together. Because the
active circuit does all of the impedance conversion and
balancing, a dedicated 1:1 transformer can be used. This
results in a hybrid design that is at once great sounding,
compact and more affordable.
As with all great designs, simplicity is a fundamental trait
and the Radial JPC certainly fits the bill. A choice of 1/4”,
1/8”, and RCA input / thru-put connectors make interfacing
a snap with all types of equipment. A single switch inserts
a stereo –10dB pad, two power LEDs confirm 48V
phantom is turned on, and a pair of XLR output connectors
round out the feature set.
Of course like all Radial products, the JPC is built to
handle the most abusive environments. Our unique
bookend design protects switches and connectors from
damage while the 14 gauge steel I-beam construction
eliminates outside stress that could torque the PC board
and cause solder joint failure. A full-bottom no-slip pad
provides electrical insulation and mechanical isolation with
plenty of ‘stay-put’ for use on hectic stages. And with its
baked enamel finish, the Radial JPC will continue looking
great for years!
Feature Set
• Stereo direct box developed for PC sound cards
• Converts –10dB consumer signals to balanced mic level
• Transformer isolated inputs eliminates ground loops
• Compact design is easy to deploy
• 48V phantom powering eliminates batteries
• Ultra rugged bookend, 14-gauge steel construction
• May be rack mounted with the Radial J-Rak
• 1/4”, 1/8” and RCA connection options
• Unused inputs can be used as a thru-put
• Built like a tank with a full 3-year warranty
Primary applications
• Computer sound card
• CD Player
• DJ Mixer
• DVD Audio player
• I-Pod
• Walkman
• Cassette deck
• Video player
• Stereo pre-amp output
Secondary applications
• Stereo keyboard
• Stereo drum machine
• Stereo sampler

Radial Engineering JPC Specifications

General

Brand	Radial Engineering
Model	JPC
Category	Recording Equipment
Language	English