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True to the Music
www.radialeng.com
®
True to the Music
®
User Guide
PowerPre 500
www.radialeng.com
Radial Engineering Ltd.
1588 Kebet Way, Port Coquitlam
British Columbia, Canada, V3C 5M5
tel: 604-942-1001 • fax: 604-942-1010
email: info@radialeng.com
500 Series Module
Microphone Preamp
Radial® PowerPre 500 User Guide
Table of Contents ........................................................Page
Feature Set .................................................................... 1
Overview ........................................................................ 2
Getting Started ............................................................... 4
Specifi cations ................................................................. 8
Block Diagram ................................................................ 9
Warranty ........................................................... Back cover
Congratulations and thank you for purchasing the PowerPre™ 500 microphone amplifi er.
The PowerPre is a unique 500 series preamp module designed to deliver the warmth of fully
discrete, transformer coupled electronics with the lowest possible noise.
This manual describes installing and operating your PowerPre 500 in the Radial Workhorse
or other 500 series module power racks. To take full advantage of the unique features that
have been incorporated, please read through this manual before using it. This will give you
a broader sense of its capabilities. If you have questions that are not covered in this manual,
please visit the FAQ section on our website. This is where we post answers to questions from
users. If you cannot nd the answer to your question please feel free to send an email to
info@radialeng.com and we will do our very best to respond as quickly as possible.
The Radial PowerPre 500 is warm, accurate and noise free. Enjoy.
WARNING NOTICE TO USER!
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.
True to the Music
®
Radial Engineering Ltd. PowerPre 500 Module
FEATURE SET
1. GAIN VU - 10 Segment LED bar provides visual peak signal
status by simulating the natural ballistics of a VU meter. Single
oating LED with peak hold lowers power demand for greater
effi ciency.
2. -15dB PAD - Expands the PowerPre’s capabilities by allowing
ultra hot signals from devices such as digital keyboards or
electronic drums to be interfaced without distortion.
3. 180º - Polarity reverse used to phase-align two microphones or
as a creative element when recording.
4. FILTER - 100Hz high pass lter removes low frequencies to
help eliminate excessive bass that can cause rumble. This
also helps clean up the recorded track by reducing ‘mud’.
Particularly useful when layering acoustic instruments.
5. OUTPUT - Adjustable gain control features dual taper
Accustate™ drive circuit that keeps background noise down at
all levels. Up to 55dB of gain adapts to all types of microphones
including condenser, dynamic and low output ribbon.
6. VOX: 3-position voicing switch lets you change the tonal
character of the preamp to suit. The linear setting delivers ‘true
clinical’ response for classical instruments; the breath position
adds ‘air and clarity’ to help vocals cut through the mix; punch
adds warmth to the bottom end to fatten up a track.
7. 48V - Phantom power for condenser microphone is equipped
with power-on LED and recessed to prevent accidental use that
could damage ribbon microphones.
8. MIC INPUT - XLR female connector is conveniently located on
the front panel and placed at the bottom to keep the cable out
of the way. Wired pin-2 hot following AES standard.
9. OMNIPORT - Rear mounted ¼connector designated as an
instrument input to allow guitar and bass to be recorded direct.
Available when used with the Workhorse.
10. XLR Output - Equipped with Hammond broadcast transformer
for smooth, warm response while being able to handle extreme
transients without choking.
11. GROUND LIFT (access at rear of module) - Disconnects pin-1
ground on the XLR input to eliminate ground loops. This special
feature should only be used when interfacing the PowerPre
with electrically powered instruments like a keyboard.
8
7
1
4
3
2
6
5
9
1
Rear Panel
10 Rear Panel
11
Important!: Phantom power will be interrupted if the ground lift switch is set to the “LIFT” position. If your
condenser mic is not working, check to make sure this switch is in it’s normal “GND” position (see photo).
Note that the front panel LED for 48V phantom power will still illuminate when set to “LIFT”.
GND

Produktspecifikationer

Varumärke: Radial Engineering
Kategori: mottagare
Modell: PowerPre 500

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