Radial SmartSheetBook V5 SPREADS Smartsheet Pro48

User Manual: Pdf smartsheet-pro48

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Radial Smart Sheet

Radial Engineering Ltd. · Tel: 604-942-1001 · Fax: 604-942-1010 · www.radialeng.com · email info@radialeng.com

Radial Smart Sheet © 2006 Subject to change without notice.

Pro48™ A C T I V E D I R E C T B O X

Features

• Superior dynamic headroom

• Ultra-fl at frequency response with extended highs

• High input impedance reduces loading

• 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

• 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

HEAVY-DUTY WELDED I-BEAM

enclosure of 14 gauge steel makes

it impossible to torque the PC board.

Eliminates cold solder joints.

BAKED ENAMEL fi nish for excel-

lent 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.

INPUT & THRU ¼” input connects

from instrument, the parallel ¼” THRU

connects to an on-stage amplifi er.

-15 dB PAD reduces input level from

high output devices like CD players

and headphone outputs.

PHANTOM PWR LED light to confi rm

phantom-power is present and the

Pro48 is working.

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.

The Radial Pro48 is a high-performance 48V phantom powered active direct box designed spe-

cifi cally for today’s higher output instruments like active basses and acoustics.

It features a digital switching power supply to signifi cantly increase headroom and directly benefi t

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 con-

struction 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!

Pro48 Application

Just about any instrument from bass to mandolin will

benefi t 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 sys-

tem is fed by the Pro48 XLR balanced mic-level output.

tem is fed by the Pro48 XLR balanced mic-level output.

Pro48 Frequency Response

Order No. R800 1105