WARNING NOTICE TO USER!
The Radial JDX 500 is not a load box. This means that if you are using it with a guitar
amplifi er it must be connected to a speaker cabinet or some type of load box. Failure
to do so could result in damaging the JDX and your amplifi er which of course would not
be covered under warranty. Always ensure you have proper cables and connections
have been checked. We recommend using high quality 12 gauge speaker cables.
Because the JDX 500 can also be used as a direct input from a guitar, we have
instituted a slow fl ashing LED to let you know when you are in this mode. This safety
measure reminds you that you should not connect a guitar amplifi er output to the JDX
when in guitar mode as this may damage the JDX.
Although preventative safety measures have been designed into Radial 500 series
products
we strictly advise against hot-swapping modules
or plugging and
unplugging them when the Workhorse or other 500 series rack is powered on. Hot
swapping can cause connection sparks at the card-edge connector that could send
damaging transients to other equipment. This also greatly reduces the life span of the
contacts. Damage due to hot swapping is not covered under warranty. There are no
user serviceable parts inside.
Radial
®
JDV-Pre
™
500
User Guide
Table of Contents ......................................................Page
Feature Set .................................................................... 1
Overview ........................................................................ 2
Getting Started ............................................................... 4
Using and Adjustments .................................................. 6
Specifi cations ................................................................. 9
Block Diagram ................................................................ 9
Warranty ........................................................... Back cover
Congratulations
… you’ve done it! You have invested in what we believe is one of the
most musical sounding instrument preamps ever made. The JDV-Pre went through many
design revisions before we fi nally decided to release it to market. Why so long? Each time
we plugged it in, we found ourselves asking for extra bits that could make the JDV that much
better.
What this really means is that behind what appears to be a simple control panel are lots of
extra cool features that have been carefully incorporated into the design. And the only way
to take full advantage of them is to actually read this manual. Once you have done so, there
may be questions that have not been answered. For these, we kindly ask that you visit the
JDV-Pre FAQ page. This is where we answer questions from users, like yourself, with the
latest information that can be helpful when using the JDV-Pre live on-stage or in the studio.
If of course you cannot fi nd what you are looking for, either post a question on the FAQ or
feel free to send us an email at [email protected] and we will do our very best to get back
to you in short order.
Now close your eyes and listen. You are about to hear your vintage Fender Jazz bass for
the very fi rst time.
