RADIAL PRO-48 Active Di Box

139.94 incl. GR VAT

Only 5 left in stock (can be backordered)

EAN: 676101036776
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  • High performance active direct box
  • Increased dynamic range and headroom
  • 48V phantom powered with switching supply
  • Ideal for acoustic guitar and bass
  • High performance active direct box
  • Increased dynamic range and headroom
  • 48V phantom powered with switching supply
  • Ideal for acoustic guitar and bass

 

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  • High performance active direct box
  • Increased dynamic range and headroom
  • 48V phantom powered with switching supply
  • Ideal for acoustic guitar and bass

The Radial Pro48 is a compact high-performance 48V phantom powered active direct box designed specifically for todays high output instruments.

The Pro48’s innovative internal switching power supply significantly increases headroom producing less distortion while yielding a smooth, linear response that extends from 20Hz to well above 40kHz. This results in natural, uncolored signal that is as good or better than DI boxes costing several times more. The superior performance makes the Pro48 an ideal candidate for use with 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 throughout. A unique book-end™ design creates a protective zones around the switches and connectors while the internal I-beam construction assures outside stress will not torque the PC board and deteriorate solder connections. A full bottom no-slip pads adds mechanical isolation and electrical insulation to further extend the Pro48’s lifespan.

Exceptional sonic performance, great natural tone and an affordable price tag! The Radial Pro48 truly represents a breakthrough in value.

Weight 0.52 kg

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Quick Comparison

RADIAL PRO-48 Active Di Box removeOMNITRONIC LH-065 ACTIVE D.I BOX removeDOD AC 275 Active Direct Box with Switchable Ground Lift and Attenuator-2nd Hand- removeSTEWART ADB4-4 CH. ACTIVE D.I BOX removeALPHATON DI 1000 TUBE D.I BOX removeLD SYSTEMS LDI02-ACTIVE D.I BOX w-BATTERY remove
NameRADIAL PRO-48 Active Di Box removeOMNITRONIC LH-065 ACTIVE D.I BOX removeDOD AC 275 Active Direct Box with Switchable Ground Lift and Attenuator-2nd Hand- removeSTEWART ADB4-4 CH. ACTIVE D.I BOX removeALPHATON DI 1000 TUBE D.I BOX removeLD SYSTEMS LDI02-ACTIVE D.I BOX w-BATTERY remove
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SKUH30RL00009LH065275ADB4EDI 1000LDI02
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Price 139.94 incl. GR VAT 77.67 incl. GR VAT 73.93 incl. GR VAT 585.13 incl. GR VAT 773.75 incl. GR VAT 58.64 incl. GR VAT
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Description
  • High performance active direct box
  • Increased dynamic range and headroom
  • 48V phantom powered with switching supply
  • Ideal for acoustic guitar and bass
Content
  • High performance active direct box
  • Increased dynamic range and headroom
  • 48V phantom powered with switching supply
  • Ideal for acoustic guitar and bass
The Radial Pro48 is a compact high-performance 48V phantom powered active direct box designed specifically for todays high output instruments. The Pro48's innovative internal switching power supply significantly increases headroom producing less distortion while yielding a smooth, linear response that extends from 20Hz to well above 40kHz. This results in natural, uncolored signal that is as good or better than DI boxes costing several times more. The superior performance makes the Pro48 an ideal candidate for use with 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 throughout. A unique book-end™ design creates a protective zones around the switches and connectors while the internal I-beam construction assures outside stress will not torque the PC board and deteriorate solder connections. A full bottom no-slip pads adds mechanical isolation and electrical insulation to further extend the Pro48's lifespan. Exceptional sonic performance, great natural tone and an affordable price tag! The Radial Pro48 truly represents a breakthrough in value.
DOD AC 275 Active Direct Box with Switchable Ground Lift and Attenuator-2nd Hand-

The AC 275 is an active, phantom powered direct box. Unlike a passive DI where the frequency response of the signal can be altered depending on the connected impedance, an active DI buffers the input signal with an amplifier. This assures that the sound source will reach the mixer balanced and noise-free.

Housed in a cast alloy chassis, the AC 275 supplies two, high impedance, unbalanced 1/4" jacks and one low impedance balanced XLR jack. It operates with battery or phantom power.


Key Features
?

Active direct box

?

Allows a hi impedance unbalanced source to directly feed a low impedance balanced input

?

Flat frequency response

?

Connects guitar pickups, microphones or electric instruments to a recording or P.A. console without audio quality loss

?

Internal pad for speaker level input

?

Operates with battery or phantom power

?

Ground lift switch eliminates typical ground loop problems

?

Rugged, road-proof cast alloy chassis

You're serious about getting rid of all that excess noise on stage, but you've got so many line
instruments you don't know where to start. The ADB-4 from Stewart can take care of all your
high impedance problems. The ADB-4 is 4 active direct boxes, all in a module that only takes
up half a space on your keyboard rack. It's a rugged, durable piece of equipment that packs a
lot of DI power.

? Requires phantom power or 9v battery
? Ground lift switch
? Instrument or speaker level switch
? Transformerless
? Can be used with amp up to 400w
? RF shielding

Tube-buffered DI-Box DI-1000

The Tube-Buffered DI-Box DI-1000 allows the extraction of all the musical details of
musical interfaces without degrading the sound. This can only be achieved by
providing a very high input impedance to avoid any loading of instrument pickups.This
design approach allows seemingly infinite headroom to preserve the real dynamic range
of the interfaced instruments.A vacuum tube enables all these goals to be achieved
without any compromises in sound quality.The sonic difference between a standard
DI-Box and the Tube-Buffered DI-Box is comparable to the musical resolution difference
between a standard microphone and a studio microphone.One of the best transformers,
the very transparent sounding JENSEN JT-DB-E, was chosen providing complete ground
isolation. The parameters of this transformer, like frequency response, phase response,
group delay and geadroom capabilities, play a vital part in the performance of this DI-Box.
 
Technical Specifications
Input
The signal of the instrument is directly fed to the tube circuit with > 20 MOhms input
impedance to prevent any signal degradation, inevitable in traditional designs.
Buffered Output“
The second stage of the vacuum tube is used to buffer the signal and lower the output
impedance to < 8 kOhms. This unity gain output allows for cable runs of 10 meters
without loosing high frequency information.
Boost circuit
The boost circuit increases the signal send to the output transformer by 15 dB. This may
be useful for instruments with extremely low output, but decreases headroom capability
to 6 Volt rms. Under these circumstances the signal may be clipped, concerning the output
transformer?s signal, which gives you 2nd harmonic tube-like distortion. This distortion
normally does not occur - but is sometimes desirable, being the reason for this special feature.
Unity circuit
The unity circuit feeds a low distortion unity gain signal to the JENSEN output transformer.
This gives the best possible sound quality.
Ground-lift“-Switch
This front panel mounted switch allows complete ground and electrical isolation between the
direct injection box and the console or recording device.
 

Mechanical Specifications
Cabinet 2 mm stainless steel
Front- and rear-panel 1,5 mm stainless steel lasercut and photo-chemically etched
Dimensions 185 x 100 x 40 mm
Vibration insulation 4 high-compliance rubber-elements
Operating Voltage
220/110 V AC, selectable via rear panel mounted switch. The fuse is easily
accessible from the rear panel. IEC mains connector with optional fixture.
Construction details
Double sided glass fibre contacted PCB with 70 mm copper plating. 1% metal film resistors
and the finest polypropylene capacitors are used in the signal path. MIL type Switchcraft jacks
and high performance switches ensure flawless operation. The power supply is optimised via
measurement quality toroid transformer and a low impedance design to ensure the lowest
possible noise. Through a double sided PCB all parts are roadworthy secured. A waterclear
blue LED perfects the aesthetics of the DI box.

Technical Data
Input impedance > 20 MOhm
Output impedance180 Ohm at 1 kHz
Frequncy response 20 Hz - 20 kHz (-0,1 dB)
                             5 Hz - 120 kHz (-3 dB)
THD at 0 dBv  0,06% at 20 Hz
                      0,04% at 1 kHz
                      0,035% at 20 kHz
Signal to Noise Ratio 86 dB
Tube ECC 83/7025 A - military E 83 CC optional
Output transformer JENSEN JT-DB-E
Polarity Pin 2 Hot , AES/IEC -Standard
Max. Input voltage > 30 V peak
 

pdf User´s Manual LD Systems LDI02 DI Box active Active DI box in a sturdy metal housing (aluminium/steel) with protective corners, silver-blue metallic, internal battery (9 V flashes during operation) is switched off automatically when phantom power is used (LED permanently illuminated), extremely low battery consumption. Battery: 9 V block (not included). Product type DI Boxes
Channels 1
Inputs 2
Input connectors 6.3 mm Jack , XLR
Max. input level + 10 / + 30 dBu dBu
Input impedance 1 M Ohm(s)
Outputs 1
THRU outputs/channel 1
Output connectors XLR
Frequency response 20 - 20.000 Hz
THD
Indicators Power
Controls ground lift , Power
Operating voltage +48 V phantom power , 9 V block
Cabinet material metal
Cabinet surface painted
Width 135 mm
Depth 128 mm
Height 53 mm
Weight 0,645 kg
Weight0.52 kg0.80 kg2.50 kg0.50 kg0.60 kg0.70 kg
DimensionsN/AN/AN/AN/AN/AN/A
Additional information
Weight 0.52 kg
Weight 0.80 kg
Weight 2.50 kg
Weight 0.50 kg
Weight 0.60 kg
Weight 0.70 kg