Radial Engineering Pro48 Handleiding

Radial Engineering Niet gecategoriseerd Pro48

Lees hieronder de 📖 handleiding in het Nederlandse voor Radial Engineering Pro48 (6 pagina's) in de categorie Niet gecategoriseerd. Deze handleiding was nuttig voor 22 personen en werd door 2 gebruikers gemiddeld met 4.5 sterren beoordeeld

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www.radialeng.com
Radial Engineering Ltd.
1845 Kingsway Ave., Port Coquitlam, BC V3C 1S9, Canada
Tel: 604-942-1001 • Fax: 604-942-1010
email: info@radialeng.com
Pro48™
Active Direct Box
True to the Music
Radial Pro48 user guide - Part #: R870 1135 00 - v2.2 / 09-2021
Specifi cations and appearance subject to change without notice.
Copyright © 2009 Radial Engineering Ltd.
®
User Guide
CONGRATULATIONS on your purchase of the Radial Pro48 active direct
box. As with all Radial products the Pro48 is easy to use. This short manual
contains all the information you need to start using the Pro48 right away. For
more information on the Pro48 and other Radial products, visit our website at
www.radialeng.com.
OVERVIEW
The Pro48 is a great sounding active direct box. It has been optimized to
produce maximum headroom and dynamics while working within the limited
current available from 48V phantom power.
The Pro48 employs a unique switching power supply that steps up the current
from phantom power to produce higher internal rail voltage than typical
active DI’s. This makes the Pro48 capable of peak input transients to 9 volts
without any noticeable distortion, making it perfect for both active and passive
instruments. The Pro48 is equipped with an input PAD to help prevent overload
from hot signals and a ground lift to reduce noise caused by ground loops. The
balanced XLR output can drive very long cables without appreciable signal
loss. The Pro48 is constructed for heavy use in the studio and on stage.
Pro48 BLOCK DIAGRAM
To fully understand the Pro48 follow the block diagram from the inputs on the
left to the outputs on the right.
Pro48™ User GuideRadial Engineering Ltd.
After the paralleled input and thru jacks the signal passes through a switchable
15dB PAD which allows the Pro48 to handle virtually any audio device from
passive pickups to high output instruments without overloading.
Next comes the active drive circuit that converts the signal to balanced low
impedance mic-level for transmission over long cables without noise or signal
loss. The switching PSU steps up the current from phantom power and the
drive circuit uses the higher rail voltage to increase headroom and dynamic
range.
The switching PSU uses a transformer in the DC path to block noise caused
by ground loops. The ground LIFT switch interrupts the ground path around the
transformer to help suppress noise from bleeding through into the audio path.
Pro48™ User GuideRadial Engineering Ltd.
FEATURES AND FUNCTIONS
1 INPUT - jack connects to instruments
like guitars and keyboards.
2 -15dB PAD - reduces the input level
by 15dB to prevent overload from
high output devices.
3 LED INDICATOR - lights to confi rm
phantom power is active and the
Pro48 is working.
4 THRU - jack passes the instrument
signal to the on-stage amplifi er.
5 FULL BOTTOM FOOT - neoprene
foam foot provides electrical isolation
and plenty of friction to stay put.
6 14 GAUGE STEEL - bookend shell
creates a protective zone around the
switches and connectors.
7 OUTPUT - Balanced mic-level
output drives long cables without
appreciable loss.
8 GROUND LIFT - helps to reduce hum
and buzz caused by ground loops.
9 SWI TCHING POWER SUPPLY -
steps up the current from phantom
power to produce 9 volt internal rails.
With more voltage to work with than
typical active DI’s, the Pro48 exhibits
more headroom and dynamic range
while lowering noise.
10 MILITARY-GRADE - double-sided
PCB is bolted to steel standoff s for
road-tough construction.
11 ISOL ATED CONNECTORS - are
100% electrically isolated from the
chassis.
12 A C T I V E D R I V E C I R C U I T -
electronically balances the signal
and converts it to low-Z mic-level.
13 I - B E A M D E S I G N - in n e r st e e l
enclosure is made extremely rigid
with an I-beam profi le. This eliminates
stress that could torque the PC board
and cause solder joint failure.
1 2 3 54
6 7 8
109
11
12
13

Product specificaties

Merk: Radial Engineering
Categorie: Niet gecategoriseerd
Model: Pro48

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