Direct Boxes

Introducing the pcUSB


The next big “little” thing from Whirlwind!


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The pcUSB easily converts the digital audio from
USB outputs like your laptop, smart phone, tablet etc. to
high quality, transformer isolated analog, stereo, balanced
audio for a clean and easy connection to a PA system, or mixing board.

pcUSB $122.00




DIRECT-JT

w / Jensen® Transformer $147.99

Our top-of-the-line passive DI features the Jensen JT-DB-EPC transformer - world renown for wide frequency response and superior noise rejection characteristics.

Extruded aluminum housing with recessed switches provides expected Whirlwind durability.

Features include:

  • 1/4" input jacks can be used as "INPUT / THRU" or they may be combined with the "COMBINE" pushbutton to safely sum stereo feeds to a single channel.

  • "FILTER / OFF" button engages a filter that emulates the frequency response of a microphone placed in front of a 12” speaker.

  • "PAD" button engages 15dB pad for reducing hot input levels.

  • "REV / Ø" button reverses the polarity from pin 2 hot to pin 3 hot for correcting non-standard equipment and mis-wired cables or for creating special effects.

  • "LIFT / GND" button to help eliminate hum and buzz.


Model # - DIRECT-JT
Impedance Ratio: 200k:1.5k
Frequency Response:
20Hz-20kHz re:1kHz, -0.08dB / -0.07dB
THD @ 20Hz: 0.036%
THD @ 1kHz: less than 0.001%
-3dB BW: 100kHz






DIRECT-JT


DIRECT-JT OUT


DIRECT-JT


DIRECT2-JT $276.59


The DIRECT2-JT is Whirlwind's premium Dual Direct box, built with Jensen transformers.
Perfect for converting unbalanced signals from stereo keyboards, acoustic guitar preamps, CD and tape players, computer sound cards, etc. when lowest noise and widest frequency response are required.

Each section features:

  • 1/4" parallel wired IN / THRU jacks, or may be converted to dual inputs with handy COMBINE buttons.
  • -20dB pad button for connection to "hot" input signals
  • Ground lift button to help eliminate hum and buzz
  • Uses Jensen JT-DB-EPC transformers
The input and output grounds of each section are isolated from each other. This allows the DIRECT2-JT to be used as if it were two completely separate DIs without fear of creating ground loop interaction.

Model # - DIRECT2-JT

Impedance Ratio: 200k:1.5k

Frequency Response:
20Hz-20kHz re:1kHz, -0.08dB / -0.07dB

THD @ 20Hz: 0.036%

THD @ 1kHz: less than 0.001%

-3dB BW: 100kHz






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Hot Box $110.99

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Our top-of-the-line DI is an active direct box that operates with batteries or phantom power. 
The HotBox provides super-clean, front-end circuitry that delivers the widest frequency response
of any direct box on the market. The unusually high input impedance reveals hidden harmonics
from guitars with high-output passive pickups.

The provided ground-lift switch is useful for eliminating 60 cycle ground loop hum.

The inst./line/spkr. switch selects between instrument, line, or speaker level inputs. 

An LED indicates "on" status. 
Frequency Response: 9Hz-200kHz ±3dB, 20Hz-20kHz ±0.05dB Residual Output Noise: -110dB; Maximum Input Level: +15dBu; Rise Time: 1µS Power Requirements: (2) 9V batteries or 48V phantom Battery Life: approximately 150 hours Input Impedance: 10 meg Ohms

Hot Box Quad $413.99

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Four channels of HotBox performance come in a 1U rack package with 
built-in power supply. The HotBox Quad provides premium quality DI 
performance that works equally well in the studio and on the road. 
For specs, see HotBox

Power Requirements: 115/230 VAC 50-60Hz or Phantom Power


DIRECTOR ®

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Whirlwind Director $56.69




This premium direct box converts a line, instrument, 
or speaker level signal to low impedance balanced mic level. 
The input is Hi-Z bridging. Features include a 30dB pad 
switch for selecting between line/instrument or speaker level, 
a switchable low pass filter to eliminate amplifier noise, 
and a ground-lift switch on the Lo-Z output. 
The Director utilizes the TRHL-M transformer.


Input Impedance: 20k Ohms Output Impedance: 150 Ohms Frequency Response: 20Hz-20kHz ±1dB Level Change (input to output): -20dB (pad out), -50dB (pad in)


MULTIDIRECTOR


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Whirlwind Multi Director 224.99


 

Four channels of Director DI in a convenient 1U rack package. 

The MultiDirector is the touring sound standard for passive DIs.


Input Impedance: 20k Ohm
Output Impedance: 150 Ohm
Level Change (input to output): -20dB (padout), -40dB (pad in)
Frequency Response: 20Hz-20KHz ±1dB



IMP ® 2


IMP2 $37.75

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The ideal direct box for anyone requiring professional quality and 
durability in an economical package. The IMP 2 converts a line
or instrument level unbalanced signal to a low impedance mic level 
balanced signal. The input is Hi-Z bridging, and the output is provided
with a ground-lift switch. Built with Whirlwind's TRHL transformer, 
you can count on this box to be just as rugged on the inside as it is
on the outside.

Input Impedance: 20k Ohms 
Output Impedance: 150 Ohms 
Frequency Response: 20Hz-20kHz ±1dB 
Level Change: (input to output): -20dB 


EDB-1

Whirlwind EDB-1 $27.99


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An economy direct box offering rugged construction
while maintaining exceptional sound quality.
Features include:
  • 1/4" In and Through Jacks
  • Pad switch for connection to "hot" signal sources
  • Ground Lift switch to help isolate hum and buzz
  • Metal construction and quality transformer
  • Superb sound quality
Input Impedance: 20k Ohms
Output Impedance: 150 Ohms
Frequency Response: 20Hz-20kHz ±1dB
Level Change: -20dB (input to output, pad switch set to zero dB)
Pad: 3 position, provides 0dB, -20dB, -40dB additional attenuation



Whirlwind podDI $63.65





Whirlwind pcDI Direct Box ®




Winner of Pro Audio Review's Par Excellence Award
" . . . built like a tank!"

pcDI®

The Whirlwind pcDI is the first dual direct box with RCA phono connectors designed to interface your unbalanced, stereo line sources with professional, balanced, low impedance equipment.

This unit contains two separate DIs - input your signals with one 3.5mm (1/8") mini TRS stereo jack or two sets of color coded RCA phono type input and through jacks. Output is via corresponding color coded XLRs.

Features a ground lift switch to help eliminate hum and a 20dB pad switch in each channel for connecting to "hot" signals.

Perfect for interfacing with the outputs of CD players, computer sound cards, tape decks, etc.

Each section features:

  • 3.5mm (1/8") mini TRS stereo input jack
    (tip=left +, ring=right +, sleeve=common negative)
  • Color coded RCA phono in/through jacks
  • Color coded XLR output jacks
  • Ground Lift switch to help eliminate hum and buzz
  • Stereo/Mono switch for stereo operation or for combining both inputs into a mono signal sent to both outputs
  • -20dB pad switch for connection to "hot" input signals
  • Uses Whirlwind's TRHL-M transformers with metal shield


Model # - PCDI
Impedance Ratio (input to output, per channel): 133:1
Frequency Response: 20Hz-20kHz ±1dB
Level Change (input to output): -20dB (pad out), -40dB (pad in)
Whirlwind pcDI Direct Box $116.95




Introducing The podMIXai, the big brother to our legendary podMIX

Whirlwind is happy to release the podMIXai, the perfect solution for combining a microphone with your favorite sound track!

The podMIXai is an active mixing device that combines a dynamic microphone with an unbalanced stereo audio source for connection to a single line level input of a sound system. Use it with CD and MP3 players, computer sound card outputs, DJ mixers, etc. along with a microphone in sports arenas, conference rooms, banquet halls, gymnasiums and party houses for paging or announcements over background music. The output is mono balanced line level.

FEATURES

The podMIXai is a small tabletop enclosure with a rugged, ergonomic design for ease of use and easy storage. A wall adapter power supply (PS12AC1A) is included which provides 12 VAC at 1 Amp.

Variable level controls on both the mic and music inputs allow level matching and mixing between the music source and the microphone. The mic input accepts dynamic microphones and can provide up to 60 dB of gain. The music input can boost the signal 20 dB.

On/Off switches for both the mic and music inputs allow convenient muting control of each signal. A bass cut switch is provided on the mic input which can reduce handling and wind noise.

The LED meter has yellow and red LEDs that confirm output level and a green LED indicates that the podMIXai has power . The yellow starts to illuminate when the output signal reaches -10 dB and the red starts at +10 dB and is fully on when the signal reaches +16 dB.

Music signals are input via a single 3.5mm (1/8”) stereo TRS jack which are summed to mono. The microphone input is a balanced female XLR jack and the output is via a balanced male XLR jack.

 

 

Whirlwind podMIXai $188.99



 
 




































































podMIX


The podMIX is a passive mixer that combines a microphone with a stereo, line level audio source for connection to a single channel input of a sound system.

Use it to combine your microphone with a CD or MP3 player, computer, DJ mixer, etc., for paging and announcing over background music in banquet halls, sports arenas and party houses.

Accepts the stereo line inputs via 1/8" stereo jack or dual RCA phono jacks and sums them with the microphone into a single balanced mono output. These are wired in parallel and can be used as a loop thru from one to the other.

  • A variable attenuator on the line input allows level matching and mixing between the music source and the microphone.

  • Mute switches on both the mic and line inputs provide convenient on / off control of each signal.

  • Works with both dynamic and condenser microphones and passes phantom power from the output to the mic input.

  • Features a ground lift switch on the line input to help eliminate hum and buzz.

  • Can also be used as a high quality DI box.
Whirlwind podMIX Passive Mixer $109.95




PA1 Personal Amplification System




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The Whirlwind PA1 is a high output, low distortion,
portable monitoring device
suitable for critical listening in any professional audio environment. Use for: Headphone distribution systems. Sign language interpretation or language translation. (The superior sound quality will reduce ear fatigue when working over extended periods of time.) Adding headphone monitoring to any piece of audio equipment. Boosting weak headphone outputs in high SPL environments. The PA1 accepts either balanced or unbalanced stereo, line level signals through parallel XLR and 1/4" TRS inputs. A switch changes the input connector configuaration from separate balanced inputs to combination unbalanced (Tip/Pin2 = Left, Ring/Pin3 = Right) for accepting signals from sources such as headphone jack outputs. Powered by two 9 volt batteries that load into easy access drawers or external AC power supply (included).
Personal Amplification System $188.45




HB1XL

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The HB1XL is a professional quality, passive headphone monitor box.
Description:

A stereo power amp with 50 Watts maximum output is required 
to provide signal to the HB1XL. There are separate, concentric 
volume controls for the left and right channels. Premium quality, 
sealed 2 Watt, audio taper pots provide reliability and precise 
level control. A stereo/mono switch combines left and right channels 
into both earpieces. 
HB1XL $115.59




DIRECT4

The DIRECT4 combines features found on four of our DIRECTOR® direct boxes in one unit.
Perfect for converting unbalanced signals from multiple instruments, keys, acoustic guitar preamps, CD and tape players, computer sound cards, etc.

Each section features:

  • 1/4" parallel wired in/out jacks

  • Ground Lift switch to help eliminate hum and buzz

  • Filter switch to help reduce amplifier noise and hiss

  • -20dB pad switch for connection to "hot" input signals

  • Uses Whirlwind's TRHL-M transformer with metal shield
The input and output grounds of each section are isolated from each other. This allows the DIRECT4 to be used as if it were four completely separate DIs without fear of creating ground loop interaction.

Model # - DIRECT4
Input Impedance: 4 X 20k Ohms
Output Impedance: 4 X 150 Ohms
Frequency Response: 20Hz-20kHz ±1dB
Level Change (input to output): -20dB (pad out), -40dB (pad in)


Direct4 $203.00



1ST Audio USA
www.1staudiousa.com