Radial SmartSheetBook V5 SPREADS Smartsheet Pro48

User Manual: Pdf smartsheet-pro48

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R a d i a l Smar t Shee t
Order No. R800 1105

Pr o48 ™

ACTIVE DIRECT BOX

The Radial Pro48 is a high-performance 48V phantom powered active direct box designed specifically for today’s higher output instruments like active basses and acoustics.
It features a digital switching power supply to significantly increase headroom and directly benefit
the user with less distortion while yielding a smooth and linear response that extends from 20Hz
to well above 100kHz for a natural and uncolored signal transfer. These combine to make the
Pro48 an ideal candidate for today’s battery powered active basses and acoustic guitars that tend
to overload other direct boxes.
The compact Pro48 is built road-ready with 14 gauge steel in our unique book-end™ design that
provides protective zones around the switches and connectors. The internal welded I-beam construction assures outside stress will not torque the PC board thus assuring longer product life.
Exceptional sonic performance, great natural tone at an affordable price; the Radial Pro48 truly
represents a breakthrough in value!

Features
• Superior dynamic headroom
• Ultra-flat frequency response with extended highs
• High input impedance reduces loading

INPUT & THRU ¼” input connects
from instrument, the parallel ¼” THRU
connects to an on-stage amplifier.

• Steps up 48V current for more headroom
Applications
• Provides extra ‘reach’ and ‘air’ in your sound!
• Ideal for active acoustic guitars and basses
• Great for keyboards and drum modules

-15 dB PAD reduces input level from
high output devices like CD players
and headphone outputs.
PHANTOM PWR LED light to confirm
phantom-power is present and the
Pro48 is working.

• Equally wonderful for live or studio
Cool stuff
• Huge 9-Volt internal rail voltage for extra headroom
• Handles loud transients without choking or clipping
• No batteries required, works with phantom-power
• 3 year transferable warranty
Pro48 Frequency Response

GROUND-LIFT disconnects the
internal ground path between the
input and the output to help reduce
noise from ground loops.
BOOK-END DESIGN creates a
protective zone around the jacks
and switches.
XLR OUT 600 Ohm balanced,
mic-level output will drive 1000 feet
without appreciable noise.

Pro48 Application
Just about any instrument from bass to mandolin will
benefit from the Pro48s extended frequency response.
Instruments connect to the Pro48 and a parallel thru-put
connects to an on-stage amp. The PA or recording system is fed by the Pro48 XLR balanced mic-level output.

HEAVY-DUTY WELDED I-BEAM
enclosure of 14 gauge steel makes
it impossible to torque the PC board.
Eliminates cold solder joints.
BAKED ENAMEL finish for excellent durability and great looks for
years!
MILITARY-GRADE PCB with full
surface ground plane to reduce
susceptibility to RF noise.
SWITCHING POWER SUPPLY steps
up the current from phantom power
to produce 9 volt internal rails. With
more voltage to work with than typical
active DIs, the Pro48 produces more
headroom and dynamic range while
lowering noise.

R a d i a l E n g i n e e r i n g L t d . · Te l : 6 0 4 - 9 4 2 - 1 0 0 1 · F a x : 6 0 4 - 9 4 2 - 1 0 1 0 · w w w . r a d i a l e n g . c o m · e m a i l i n f o @ r a d i a l e n g . c o m
Radial Smart Sheet © 2006 Subject to change without notice.



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