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Radial Engineering JDI-STEREO R800-1012 Passive DI Stereo for Acoustic Guitar/Bass/Keyboards
Radial Engineering
Item# RAD-JDI-R8001012
This Radial Engineering R800-1012 JDI Stereo is a high performance 2-channel passive direct box for live concert touring and professional recording applications, featuring premium Jensen transformers for exceptional audio performance. Features: Jensen transformer equipped passive DI Eliminates hum and buzz from ground loops Virtually zero phase & harmonic distortion Exceptional signal handling and noise rejection Compact stereo format for twice the performance Specifications: Harmonic...
Our Price: $379.99
Availability: In Stock
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Radial Engineering BT-Pro V2 Bluetooth Stereo Direct Box-Wireless Receiver with Balanced Stereo Direct Interface Outputs
Radial Engineering
Item# RAD-BT-PRO-V2
The BT-Pro V2 is a Bluetooth-enabled direct box that connects wirelessly to smartphones, tablets, and other mobile devices and provides a pair of balanced analog audio outputs to feed a PA system. Each BT-Pro V2 has a unique identifier, allowing multiple units to be used within the same building. The latest model of the BT-Pro can also be powered via 48V phantom from a mixing console. Wireless connection, professional audio The BT-Pro V2 makes it easy to quickly connect to any...
Our Price: $349.99
Availability: In Stock
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Radial JDI Passive Direct Box with Jensen Transformer
Radial Engineering
Item# RAD-JDI
The Radial JDI is a passive direct box designed to handle extreme signal levels without distortion of any kind. Unlike an active DI that is limited by the buffering amplifier's rail voltage, the JDI employs a Jensen audio transformer as the engine. Jensen transformers are legendary in their ability to gracefully handle transients while delivering a smooth, warm sounding Bessel curve, reminiscent of the finest vintage gear. Ruler flat from 10Hz to 40kHz and with virtually zero phase...
Our Price: $249.99
Availability: In Stock
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JENSEN JT-DB-E Direct Box Transformer
Jensen Transformers
Item# JT-DB-E
When loaded by the 1 kS input impedance typical of mic preamplifiers, this transformer has a 140 kS input impedance, making it ideal for high impedance sources. It can be used with or without an active buffer as a "direct box" for electric guitars or synthesizers. A 30 dB magnetic shield package is standard. Features: Converts unbalanced line levels to balanced mic level output Stops "hum and buzz" problems in musical instrument hook-ups Allows use of long cables without high frequency loss High...
Our Price: $99.99
Availability: Usually Ships in 5-14 Days
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Radial R800 1100 Pro DI Full Range Passive Direct Box
Radial Engineering
Item# RAD-PRODI
2 Types Available
The Radial Pro DI is a passive direct box that combines exceptional audio performance with solid dependable construction, making it the ideal general duty direct box for stage and studio. The heart of the ProDI is a custom wound Radial transformer. It features an exceptionally high 140k Ohm input impedance to reduce loading while enabling the ProDI to handle extreme signal levels at all frequencies without distortion. This is further improved upon with an internal MuMETAL shield to protect...
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Our Price: $129.99
Availability: In Stock
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Radial JPC Stereo PC-AV Direct Box
Radial Engineering
Item# RAD-JPC
No one builds a stereo direct box like The Radial JPC. This Stereo PC-AV Direct Box has been specifically designed for use with sound cards and other consumer electronic products to allow these to be connected to a professional sound system. Its unique design combines the advantages of transformer-isolated inputs with an active drive circuit, giving you the `best of both worlds' in a compact and extremely flexible and road worthy package. The Radial JPC was designed to help solve the buzz and...
Our Price: $249.99
Availability: In Stock
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Whirlwind pcDI Direct Box with RCA and 1/8in Inputs
Whirlwind
Item# WW-PCDI
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 (tip=left +, ring=right +, sleeve=common negative) or two sets of color coded RCA phono type input and through jacks. Output is via corresponding color coded XLRs. Features: Color coded RCA phono in / through...
Our Price: $204.00
Availability: In Stock
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RDL TX-LC2 Unbalanced to Balanced Line Combiner
Radio Design Labs
Item# TX-LC2
The RDL TX-LC2 is the ideal choice in installations requiring the active, isolated mixing of two unbalanced line-level audio sources to feed a balanced (or unbalanced) audio line. The input circuits are high-impedance, line-level (-10 dBV) and are each isolated from each other. Therefore the modules may be used to bridge an unbalanced stereo source without affecting the stereo separation. The output from the TX-LC2 is a mono mix of the stereo signal. Gain of the combined signals is adjustable...
Our Price: $138.67
Availability: In Stock
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Rolls HR187 Stereo Professional Bluetooth Direct Box
Rolls Corporation
Item# RLS-HR187
The Rolls HR187 Bluetooth Audio DI is the perfect solution for converting Bluetooth audio to a professional audio system. Link the HR187 to any Bluetooth device from a laptop, tablet, smart phone, or other mobile device, then connect to any XLR, RCA, or 1/8" stereo or mono audio system. The steel chassis provides durability that will last, and the proprietary radome antenna technology gives an enhanced reception range. Features: Balanced line level XLR stereo or mono outputs and a Stereo...
Our Price: $159.00
Availability: Ships Factory Direct, Typically in 3-10 Business Days
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On Stage Stands DB100 Consumer to Pro DI - Laptop DI Box - 3.5 mm Plug to Mic-Level XLR Output
On-Stage Stands
Item# OSS-DB100
The DB100 Laptop DI Box eliminates noise and ground loops that often occur when using consumer audio devices with a PA system. Simply connect its 3.5 mm plug to the headphone jack of a laptop or digital music player, and this compact DI automatically converts the audio signal to a balanced, mic-level XLR output suitable for use with high-powered amplifiers. The volume knob enables additional adjustment of the output level while the ground-lift switch provides control over hum caused by ground...
Our Price: $63.95
Availability: Usually Ships in 5-14 Days
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ARX AV-DI Audibox AV DI Stereo AV Active DI Box Stereo Converter
ARX America
Item# ARX-AV-DI
Stereo AudioVisual Active Direct box, with dual RCA or stereo mini jack input and dual XLR outputs. The AV DI is ideal for interfacing computer sound cards with pro sound systems. Heavy duty all-steel chassis, -20 dB Pad switch, plus Phantom or 12 - 15V DC power options. Permanent soft audio ground network prevents ground loops, providing pristine audio quality. Ideal for interfacing any consumer stereo audio signal (especially notebook computer sound cards) with the balanced inputs of professional...
Our Price: $263.12
Availability: Usually Ships in 5-14 Days
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Radial BigShot ABY True Bypass Switcher
Radial Engineering
Item# RAD-BSHOTABY
The Radial BigShot ABY is a compact ABY switcher that enables you to either switch between two amplifiers or combine the signal when you want both amps to play at the same time. Designed for the purist, this true-bypass ABY switcher is completely passive meaning that there are no tone altering buffers in between the guitar and the amplifier. With the BigShot ABY, you get the pure tone from your guitar plugged direct into your amp! To add versatility, the BigShot ABY is also equipped with a separate...
Our Price: $129.99
Availability: Usually Ships in 5-14 Days
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Radial Engineering HDI High-Definition Studio-Grade Direct Box with Transformer Saturation - Line Output
Radial Engineering
Item# RAD-HDI
The Radial HDI is a studio-quality direct box designed to create exceptional recordings with any instrument, utilizing premium Jensen transformers and a unique Color control that provides an entirely new yet familiar-sounding sonic palette to experiment with. Instant Gratification Despite the complex circuitry housed within the unit, the HDI has an elegant set of controls that allows the musician or engineer to dial up a record-ready sound with a minimal amount of tweaking required....
Our Price: $949.99
Availability: Usually Ships in 5-14 Days
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Rolls DB425 4 Channel Audio Direct Interface with Balanced XLR Outputs - 35kHz-20kHz
Rolls Corporation
Item# RLS-DB425
Discover flawless audio connectivity through the innovation of the Rolls DB425 Audio Direct Interface. This ingenious adapter redefines audio connectivity, powered by custom-made, fully potted balanced nickel-laminated transformers, ensuring an unparalleled studio signal quality. Unlike its active counterparts, the DB425 operates as a passive device, eradicating the need for power sources and seamlessly integrating into your setup with absolute ease. Meticulously engineered for precision,...
Our Price: $249.00
Availability: Usually Ships in 5-14 Days
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Palmer Audio PAN02 DI Box active
Palmer Audio
Item# PLM-PAN02
Standard active DI box. Can be operated with 9 V batteries or 48 V phantom power. High-impedance input; higher output level than with a passive DI box. Active circuitry allows for high input impedance ( 1 meg. ohm) and higher input sensitivity (typical difference between in and out -4 dB). Maximum output impedance with phantom power operation +10 dB. Output: transformer balanced. The special "floating ground" circuitry enables ground lift even during phantom power operation. Metal case 110 x 73...
Our Price: $89.99
Availability: Usually Ships in 5-14 Days
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Palmer Audio WIPPER Passive DI Box with Balancing and Impedance Matching
Palmer Audio
Item# PLM-PWIPPER
If you need to pick up the pure sound of your guitar, bass or keyboard, you need a high-quality DI-Box which does not alter the natural sound or add any noise. The Palmer wipper is a single channel passive DI box with a high-quality transformer, which also handles high levels without distorting or losing the pure sound of your instrument. With a ratio of 10:1, it can be used for optimal impedance and level adjustment to connect instrument signals from guitars, bass, keyboards or synthesisers...
Our Price: $99.99
Availability: Ships Factory Direct, Typically in 3-10 Business Days
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Palmer Audio PLI04 Media DI Box 2 Channel for PC and Laptop
Palmer Audio
Item# PLM-PLI04
PRO MEDIA DI/ PLI-04. With the new PRO MEDIA DI/ PLI-04, Palmer introduces a DI-box, produced with the discerning needs of the computer-age media in mind. Using this uncomplicated method, personal computers and other consumer equipment with unbalanced outputs can be converted to balanced, in order to carry out, e.g., a presentation over a professional PA system. The PLI-04 accommodates all the common input types, TRS jacks accepting mono or stereo plugs, RCA phono sockets and a 3.5mm stereo jack...
Our Price: $199.99
Availability: Usually Ships in 5-14 Days
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Palmer Audio PAN03PASS 19 Inch DI Box 4-channel passive
Palmer Audio
Item# PLM-PAN03PASS
Passive 4-channel DI BOX in a 19" housing. Each channel has a jack input with a parallel output for looping the signal through. An attenuation switch (-30 dB) permits connection of a line or speaker signal at the user's choice. The specifications are identical with those of the PAN 01. All connections and switches are on the 1 U front panel; the XLR output is additionally present as a parallel socket on the rear panel. Features: 4 channel Passive DI Box + 19" Rack Mount Chassis + Front panel access...
Our Price: $229.99
Availability: Usually Ships in 5-14 Days
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Radial X-Amp Active Re-Amplifier
Radial Engineering
Item# RAD-XAMP
The Radial X-Amp is an active re-amping device that presents the engineer / producer with a new and innovative creative tool that allows a pre-recorded track from a line level device to drive two guitar amplifiers or effect pedals simultaneously. This opens the door to explore new musical sounds and spur on the creative process. Following the critically acclaimed Radial JD7 Injector, the X-Amp employs a unique Class-A circuit design that has been optimized for use with guitars. Using the X-Amp...
Our Price: $249.99
Availability: Usually Ships in 5-14 Days
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Palmer Audio TRAVE Passive Re-Amplification DI Box for Signal Routing from DAW or Mixer
Palmer Audio
Item# PLM-PTRAVE
Reamping is a valuable recording technique used by many sound engineers. It lets you experiment at leisure by running guitar, bass, keyboard, drum and even vocal tracks through amplifiers and effects pedals. As with many other techniques, you need the right tools. The Palmer trave is a passive reamping box that requires no external power supply. Inside is a specially developed transformer that converts the balanced line signal into an unbalanced Hi-Z signal with perfectly matched...
Our Price: $79.99
Availability: Ships Factory Direct, Typically in 3-10 Business Days
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Radial J-ISO Balanced 4dB to -10dB Unbalanced Passive Stereo Converter - Full Range
Radial Engineering
Item# RAD-J-ISO
Stereo +4dB to -10dB converter and isolator The Radial J-Iso™ is a stereo line isolator designed to convert a professional +4dB line level balanced signal to an unbalanced -10dB consumer level device. This enables you to take the balanced output of a mixer and feed a consumer level recorder or audio input on a computer. Exceptional signal handling The passive design begins with 100% discrete components throughout. A set & forget level control lets you attenuate the...
Our Price: $329.99
Availability: Usually Ships in 5-14 Days
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Palmer Audio PAL-PBRIDGE4P 19-Inch 4 Channel Passive DI Box
Palmer Audio
Item# PLM-PALPBRIDGE4P
Are you aiming to capture the pure signal from a guitar, bass, or keyboard without any noise and tonal loss, even over long cable runs? In that case, you need a DI box - and a high-quality one at that - to ensure your sound won't be compromised. The Palmer Audio BRIDGE 4P is a 4-channel passive DI box in 19" rack format with high-quality transformers that handle even high levels without distorting or losing the pure sound of your instrument. Each channel is equipped with a 1/4"...
Our Price: $299.99
Availability: Usually Ships in 5-14 Days
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Palmer Audio PAL-PBRIDGE4APLUS 19-Inch 4 Channel Active DI Box/Isolation Box - 9V DC Power Supply Included
Palmer Audio
Item# PLM-PBRIDGE4PLUS
The Palmer Audio BRIDGE 4A+ is a multifunctional device: each of the four channels can be used independently as an active DI box, a line isolation box, or a booster. The input combo socket accepts unbalanced and balanced signals. The outputs are designed as two transformer-balanced XLR sockets per channel (one on the front and one on the rear). The galvanic isolation via transformer eliminates hum loops, and the ground lift switch can also be used to eliminate noise and interference...
Our Price: $519.99
Availability: Usually Ships in 5-14 Days
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Radial SB-4 Compact Active DI For Piezo Pickups Low-Cut Filter 48V Phantom
Radial Engineering
Item# RAD-SB-4
The Radial StageBug SB-4 is a compact active direct box that has been optimized for use with piezo transducers. This enables violin, dobro, mandolin, cello, upright bass and other instruments that are best amplified using a piezo to be connected without compromising the tone or frequency response. The design begins with a 1/4" input for the instrument pickup. Unlike typical direct boxes that have a 1meg-ohm input impedance, the SB-4 features a very high 10meg-ohm impedance that smoothes out troublesome...
Our Price: $99.99
Availability: Usually Ships in 5-14 Days
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Palmer Audio PAN08 19 Inch DI/Line Isolation Box 4 channels active
Palmer Audio
Item# PLM-PAN08
The PAN08 is a multifunctional device. Each of the four channels can be used independently as an active DI box, line isolation box or booster. The combination socket input accepts unbalanced and balanced signals. The output has dual transformer balanced XLR jacks (front and rear). The signal level can be attenuated by 20 dB for microphone inputs, but can also be boosted in three stages by up to 18 dB for LINE inputs if necessary. With an output level of +12 dBu on a load of 600 Ohms with 0.05 %...
Our Price: $519.99
Availability: Usually Ships in 5-14 Days
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Direct Boxes from Markertek are available in single & multichannel configurations and are engineered to precision specifications. Match balanced and unbalanced audio signals (match computers, instruments, film projectors and phonographs to professional audio components), mic to line level and vice-versa. We stock direct boxes from leading manufacturers like Whirlwind, Radial Engineering, ARX America and ART.

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Radial Engineering JDI-STEREO R800-1012 Passive DI Stereo for Acoustic Guitar/Bass/Keyboards

Radial Engineering BT-Pro V2 Bluetooth Stereo Direct Box-Wireless Receiver with Balanced Stereo Direct Interface Outputs

Radial JDI Passive Direct Box with Jensen Transformer

JENSEN JT-DB-E Direct Box Transformer

Radial R800 1100 Pro DI Full Range Passive Direct Box

Radial JPC Stereo PC-AV Direct Box

Whirlwind pcDI Direct Box with RCA and 1/8in Inputs

RDL TX-LC2 Unbalanced to Balanced Line Combiner

Rolls HR187 Stereo Professional Bluetooth Direct Box

On Stage Stands DB100 Consumer to Pro DI - Laptop DI Box - 3.5 mm Plug to Mic-Level XLR Output

ARX AV-DI Audibox AV DI Stereo AV Active DI Box Stereo Converter

Radial BigShot ABY True Bypass Switcher

Radial Engineering HDI High-Definition Studio-Grade Direct Box with Transformer Saturation - Line Output

Rolls DB425 4 Channel Audio Direct Interface with Balanced XLR Outputs - 35kHz-20kHz

Palmer Audio PAN02 DI Box active

Palmer Audio WIPPER Passive DI Box with Balancing and Impedance Matching

Palmer Audio PLI04 Media DI Box 2 Channel for PC and Laptop

Palmer Audio PAN03PASS 19 Inch DI Box 4-channel passive

Radial X-Amp Active Re-Amplifier

Palmer Audio TRAVE Passive Re-Amplification DI Box for Signal Routing from DAW or Mixer

Radial J-ISO Balanced 4dB to -10dB Unbalanced Passive Stereo Converter - Full Range

Palmer Audio PAL-PBRIDGE4P 19-Inch 4 Channel Passive DI Box

Palmer Audio PAL-PBRIDGE4APLUS 19-Inch 4 Channel Active DI Box/Isolation Box - 9V DC Power Supply Included

Radial SB-4 Compact Active DI For Piezo Pickups Low-Cut Filter 48V Phantom

Palmer Audio PAN08 19 Inch DI/Line Isolation Box 4 channels active

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