Whirlwind

• ¼” parallel wired in/out jacks
• Ground lift switch to help eliminate hum and buzz
• 30dB pad switch for selecting between line/instrument or speaker level input signals
• Switchable high cut filter to eliminate amplifier noise
• Uses Whirlwind's TRHL-M transformer with metal shield

Built rugged on the inside and outside, this is the world famous DI found in pro systems everywhere. The IMP 2 converts a line or instrument level unbalanced signal to a low impedance mic level balanced signal.

• 1/4" parallel wired in/out jacks
• Ground Lift switch to help isolate hum and buzz
• Uses Whirlwind's TRHL transformer

It's the ideal direct box for anyone requiring professional quality and durability in an economical package.

The Whirlwind Catdusa is a 4-channel analog snake box that uses shielded Cat5 cable instead of traditional multipair cable. Each channel has paralleled male and female XLRs, allowing for greater flexibility. The two Neutrik Ethercon RJ45s (IN/THRU) let you daisy chain multiple boxes. If shielded Cat5 cable is used, Catdusa can pass phantom power and DMX. The Mini stage box design means Catdusa can be placed almost anywhere.

Whirlwind Catdusa Features:

• 4 channels, each with paralleled male & female XLRs
• 2 Neutrik Ethercon RJ45s (in/thru) allow daisy chaining
• Phantom power & DMX capabilities with Cat5 cable
• Mini stage box design for placement almost anywhere

The Whirlwind PW-1 is a high powered stereo headphone driver for use with on stage in-ear monitoring systems. The PW-1 is a hardwired beltpack unit that has left and right balanced, line level XLR inputs. Features include a protective peak limiter with adjustable threshold, a stereo/mono switch and an additional 3.5mm stereo input.

The IMPJT from Whirlwind is a single channel, passive direct box featuring a Jensen transformer. The transformer is well known for providing a wide frequency response and superior noise reduction.

The unit provides two 1/4" jacks, one for input and the other for a "loop through" of the signal source. The jacks are wired in parallel and either can be used for either function. The male XLR jack delivers a low-impedance, balanced output for connection to a mixing console or workstation.

A ground lift switch cuts the ground connection between the input and output of the unit when set to the LIFT position, eliminating any ground loop that could be present in the circuit.

• Top of the line passive DI featuring a Jensen transformer - renown for wide frequency response and superior noise reduction
• Ground lift switch eliminates hum and buzz
• Rugged metal box provides extra shielding and helps extend the life of the unit

Converts the digital audio from USB outputs to high quality analog, stereo, balanced audio for easy connection to PA systems, mixing boards, etc.

• Max output: -3.4 dBV balanced with 0 dBfs input
• Supported sample rates: 32 kHz, 44.1 kHz, 48 kHz
• Input pad attenuation: -20 dB

The Whirlwind DIRECT2 combines features found on two of our DIRECTOR® direct boxes in one unit. Perfect for converting unbalanced signals from stereo keyboards, acoustic guitar preamps, CD and tape players, computer sound cards, etc.

• 1/4" parallel wired in/out jacks
• Ground Lift switch to help eliminate hum and buzz
• -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 DIRECT2 to be used as if it were two completely separate DIs without fear of creating ground loop interaction.

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 MultiDirector Features:

• 4 DIs in 1 convenient 1U rack package
• Ground Lift switch to help eliminate hum & buzz
• 30dB pad switch for selecting between line/instrument or speaker level input signals
• Switchable high-cut filter to eliminate amplifier noise
• Uses Whirlwind's TRHL-M transformer with metal shield
• Manufacturer part number: MLTDIR
• Impedance ratio (input to output): 133:1
• Level change (input to output): -20dB (padout), -40dB (pad in)
• Frequency response: 20Hz-20KHz ±1dB
• Type: passive
• Channels: 4
• Inputs: 4 x 1/4", 8 x 1/4" in parallel
• Outputs: 4 x XLR, 8 x 1/4" in parallel
• Dimensions (D x W x H): 5.25" x 19" x 1.75" (13.34cm x 48.26cm x 4.45cm)
• Weight: 5 lbs. (2.27kg)

The Whirlwind MultiDirector rack-mountable 4-channel direct box converts an unbalanced line, instrument, or speaker signal to a low-impedance balanced level. It features 1/4" parallel wired in/out jacks, as well as a ground lift switch to help eliminate buzz and hum. A 30dB onboard pad switch lets you work with speaker-level signals, as well as line-level signals, and a very useful high-cut filter switch cuts down on amplifier noise when engaged. This 4-channel DI uses Whirlwind's TRHL-M transformer with a metal shield and is the touring standard for passive DIs, so you know you'll get top-quality performance from the Whirlwind MultiDirector.

The Whirlwind pcDI is perfect for interfacing the outputs of CD players, computer sound cards, iPODs® / MP3 players, tape decks, etc. 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, two sets of color-coded RCA phono type input and through jacks or 1/4" TS input jacks. Output is via corresponding color-coded XLRs.

• Color-coded RCA phono in / through jacks
• 3.5 mm input jack
• 1/4" TS input jacks
• Color-coded XLR output jacks
• Ground Lift switch to help eliminate hum and buzz
• Stereo/Mono switch for stereo operation or safely 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

Whirlwind ISOXL Features:

• Compact line-level isolation transformer
• Easily isolates audio line for quick fix
• XLR male & female connectors
• Shield is lifted from input to output

The Whirlwind ISOXL is a compact line-level isolation transformer that provides an easy way to isolate an audio line when a quick fix is needed. The unit has XLR male and female connectors, and the shield is lifted from input to output.

This versatile cable tester checks many varieties of audio cables. It tests most cable combinations of XLR, 1/4" or RCA Phono plugs for shorts, opens, and polarity reverse. The handsfree design allows manipulation of the cable to locate intermittents. An On/Off switch is provided, with an LED to indicate sufficient testing power. Belt clip included.

The Whirlwind 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.

• 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.

Impedance Ratio (input to output): 133:1

Frequency Response: 20Hz-20kHz ±1dB

Level Change (input to output): -20dB (pad out), -40dB (pad in)

The Whirlwind Hotbox is an active direct box that operates with batteries or phantom power.

Its super-clean front-end circuitry delivers extremely wide and flat frequency response and will reveal hidden harmonics from guitars and basses with high-output passive pickups.

• 1/4" parallel wired in/out jacks
• Ground Lift switch to help eliminate hum and buzz
• Input switch selects between OFF, ON or ON with 20 dB PAD engaged for connecting to strong line or speaker level signals
• LED indicates "ON" status

Input Impedance: 1 Meg Ohms

Frequency Response: 20Hz-150kHz ±3dB

Residual Output Noise: -115dB

Maximum Input Level: +15dBm - battery, +20dBm - 48V phantom. Add 20dBm with pad engaged

Power Requirements: (2) 9V batteries or 48V phantom

Battery Life: approximately 300 hours

Current Draw: approximately 4.0mA DC

The Director Plus direct box from Whirlwind converts an unbalanced line, instrument or speaker level signal to low impedance balanced microphone level, which is then suitable for imputing to a console or microphone preamp.

The DI is a passive device and requires no external power supply. The unit features a ground lift switch and a 30dB pad for selecting between line/instrument or speaker level signals. The unit also features the DImax transformer.

• 1/4" parallel wired in/out jacks
• 30dB pad switch for selecting between line/instrument or speaker level input signals
• Ground Lift switch to help eliminate hum and buzz
• Switchable high-cut filter to eliminate amplifier noise
• DImax transformer with dual Faraday shields and extended frequency response

The Whirlwind Micmute boxes offer passive switching solutions for controlling the on and off conditions of a microphone or balanced line signal via footswitch or finger switch operation.

There are three styles, which cover all the essential mic control functions. Each style of Micmute is available with two types of actuator; a heavy duty footswitch (models PT, PM, PP) and a finger operated version for desktop use (models PTD, PMD, PPD).

Each box has a female XLR input and a male XLR output jack. When no signal is passing through the boxes, the output jack is configured to mute the input of the connected audio device.

All three styles of MicMute will pass phantom power for use with condenser type microphones.

The Micmute PT is configured as Push to Talk switches, meaning that the input signal is normally not connected to the output; nothing is passing through the box. When the switch is depressed and held down, the signal is turned on and passed through to the output. The signal is disconnected as soon as the switch is released.

The Whirlwind podDI is a single output summing direct box. Use it to connect CD and MP3 players, computer sound card outputs, DJ mixers, etc. to professional equipment with balanced inputs, such as a mixing console.

The podDI accepts stereo inputs and sums them into a single mono output. A variable attenuator on each input allows level matching between left and right inputs. This makes the podDI a passive mixer in split track audio applications, balancing the voice track and the music track levels in the summed mono output.

Signal is input via 3.5mm (1/8") stereo TRS jack or color-coded RCA phono jacks. An unused input can be used as a "loop through". Output is via a balanced male XLR jack.

• Features a ground lift switch to help eliminate hum and buzz
• Can also be used as a high quality single input

Features 1 female XLR input wired to 6 male XLR outputs. Perfect when adding extra amplifiers to a system, connecting multiple powered speakers, splitting intercom lines, etc.

Line level outputs can usually be split 6 times without noticeable loss of signal quality. The actual number of splits that can be accomplished depends on the level of the source signal and the impedances of the source and destinations in a particular application. It is not recommended that the SPLIT 6 be used to split a microphone level signal to more than two outputs. Attempting to do so may result in poor frequency response and reduced signal level. The SPLIT 6 may be used to split microphone level signals in most applications if this limit is observed. For more information, please refer to tech article "High and Low Impedance" .

Whirlwind LM2U Features:

• XLR, TRS mini, & RCA phono jacks
• Level controls
• Active circuitry, power by Whirlwind PS24 supply (included)
• Frequency response: 20-20 kHz at unity gain, +/- .1 dBV
• Total harmonic distortion (THD) +noise: < .0015% 20-20kHz at unity gain; < .0024% 20-20 kHz, +4 to -10 levels
• Phase shift: < 11.4 degrees 20-20 kHz; < 2 degrees 100-4 kHz
• Dynamic range: 95.7 dB @ .1% THD
• Total gain: 40 dBV
• Range of level pot: -40 to + 40 dBV
• Max input level: +17 dBV
• Input impedance: 20 k Ohms balanced
• Max output level: +17 dBV
• Output impedance: 100 Ohms unbalanced
• Noise at 20 dBV of gain: -87.4 dBv 20-20 kHz
• Noise at unity gain: -103.4 dBV 20-20 kHz
• Noise at 40 dBV of gain: -68.1 dBV
• Power consumption: 34 mA DC max
• Stereo separation: 94 dB at 20 kHz; 110 dB at 1 kHz; 120 dB at 20 Hz

The Whirlwind LM2U handy box can be used to match consumer grade audio devices (-10dB) to pro equipment (+4dB). This unit converts the level and provides the conversion from balanced to unbalanced operation and vice-versa.

The Whirlwind SP1X2 provides one direct and one or two transformer isolated outputs, respectively, from a mic level input. The SP1X2 provides one direct and one isolated output. The SP1X2 transformer isolated output on the device features a ground lift switch.