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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 ProD8 Eight Channel Rackmount DI
Radial Engineering
Item# RAD-PROD8
The Radial ProD8 is a high performance 8-channel passive direct box optimized for keyboard rigs in professional touring. The design begins with fully redundant dual 1/4" inputs on all channels. These are summed together to enable the system tech to patch in a backup keyboard and have it on standby should a device go down during a show. This also enables up to 16 keyboards or 8 stereo sets to be connected should the need arise. A (shared) 1/4" TRS effects insert jack on each channel allows two keyboards...
Our Price: $999.99
Availability: In Stock
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Radial J48 Active 48V Phantom Powered Direct Box w/Digital Switching Supply
Radial Engineering
Item# RAD-J48
The Radial J48 is a great sounding active direct box that has been optimized to produce maximum headroom while working within the limited current available from standard 48V phantom power. By employing a unique switching power supply, the J48 is capable of peak transients to 9 volts without choking. The result is lower harmonic distortion, half the inter-modulation distortion and significantly improved dynamics over other DIs. Features include a -15dB pad, 180degree polarity reverse, a unique...
Our Price: $249.99
Availability: In Stock
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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 J48 Stereo Active DI for Acoustic Guitar & Bass with Extra Headroom and High-Pass Filter
Radial Engineering
Item# RAD-J48S
The Radial J48 Stereo is a high performance active direct box designed for professional touring and studio recording. It features the same award-winning signal path that has made the single channel J48 the most specified active direct box on tour today. And with users as diverse as Paul McCartney, Tommy Emmanuel and Joe Chiccarelli, you can be sure it will meet the most demanding qualifications. The design begins with a rugged 14 gauge steel construction and a bookend design that protects sensitive...
Our Price: $379.99
Availability: Typically Ships in 3-10 Business Days
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Radial SB-5 Compact Stereo DI For Computers W/ Attached Cable Stereo or Mono Out
Radial Engineering
Item# RAD-SB-5
The Radial Stage Bug SB-5 is a compact stereo direct box designed to accommodate laptop computers, tablets and other consumer audio products when amplifying the signal through a PA system. The passive design begins with an integrated input cable that connects from the headphone out via a flexible 1.5m (5') cable that is terminated with a standard 3.5mm (1/8") stereo connector. The cable is secured via a clamping strain relief and is wrapped using the sidewinder cleat for easy storage. This of course...
Our Price: $119.99
Availability: Typically Ships in 3-10 Business Days
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Radial SB-2 Compact Passive DI For Bass & Keyboards W/ Stereo To Mono Mix
Radial Engineering
Item# RAD-SB-2
The Radial StageBug SB-2 Passive is a high-performance direct box made for players who are on the move! Made to fit inside of a guitar case, the SB-2 is ultra compact yet is feature-packed to ensure great performance on any stage. The compact design begins with a 1/4" input and thru-put to feed the on-stage amp. This connects to the custom made Eclipse ET-DB3 transformer which performs the impedance matching and balances the signal. When using extra high output instruments, a -15dB pad can be inserted...
Our Price: $89.99
Availability: In Stock
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Radial Tonebone Bassbone V2 Bass Preamp and DI Box
Radial Engineering
Item# RAD-BASSBONEV2
Like the original, the second generation Bassbone V2 features the same award-winning audio circuit that has made the Bassbone a top choice for many of the world's most prominent bass players including Marcus Miller, John Patitucci, Rhonda Smith and Victor Wooten. Simply stated, the Bassbone V2 is a bass command center. Connect any two basses and seamlessly toggle between them using a footswitch. Each channel has a separate level control to balance the two instruments and is augmented with a unique...
Our Price: $399.99
Availability: Typically Ships in 3-10 Business 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: Typically Ships in 3-10 Business Days
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Radial BigShot I/O True Bypass Instrument Selector
Radial Engineering
Item# RAD-BSHOTIO
The Radial BigShot i/o is an easy to use instrument selector switch that lets you quickly transition between any two instruments and drive the signal to your amp. Because the i/o is 100% true-bypass, it addresses the needs of the most demanding purist. To further enhance connectivity, input-B is equipped with a level control called DIM that lets you reduce the signal from the louder of your two instruments so that both instruments are matched to the same volume level when they reach the amplifier....
Our Price: $129.99
Availability: Typically Ships in 3-10 Business 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: Typically Ships in 3-10 Business Days
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Radial JDV Mk5 Super DI - Active Class-A Direct Box
Radial Engineering
Item# RAD-JDV-MKV
The Radial JDV Mk5 is a high performance active direct box and preamp with two inputs that enables the user to seamlessly transition from one instrument to another while being able to optimize the signal chain no matter what the source. The design begins with 100% discrete electronics and a unique class-A circuit with zero phase-cancelling negative feedback front-end. This is augmented with Drag control load correction that lets you optimize the impedance that is being applied to the pickup along...
Our Price: $749.99
Availability: Typically Ships in 3-10 Business 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: Typically Ships in 3-10 Business Days
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Radial Engineering Backtrack Stereo Backing Track Switcher with 3.5mm & 1/4 Inch Inputs and Isolated DI Outs
Radial Engineering
Item# RAD-BACKTRACK
The Backtrack is a compact stereo audio switcher, perfect for bands running redundant backing tracks on stage. Connect both source devices to the Backtrack via ¼" or 3.5mm connectors, and switch between them or mute them altogether using the front panel controls or a JR-2 remote footswitch. A headphone output with level control allows you to check either input at any time, and ¼" monitor outputs feed powered speakers for playback on stage. Dual XLR outputs feed the...
Our Price: $459.99
Availability: Typically Ships in 3-10 Business 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: Typically Ships in 3-10 Business Days
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Radial Engineering SB-5 Desk Mount L-Bracket for Radial StageBug SB-5 Laptop Direct Box
Radial Engineering
Item# RAD-SB-5-BRACKET
The Radial StageBug SB-5 may be permanently affixed to a desktop, podium, or inside a rack should the need arise using the SB-5 Bracket. Installation is easy, simply remove the sidewinder cable holder with a Phillips head screwdriver and attach the bracket between the sidewinder and the SB-5 chassis. The SB-5 Bracket provides a secure flange that allows you to bolt down the SB-5 to any surface. Please Note: The StageBug SB-5 does not come with the SB-5 Bracket.
Our Price: $29.99
Availability: Typically Ships in 3-10 Business Days
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Radial PZ-DI Piezo-Optimized Direct Box
Radial Engineering
Item# RAD-PZ-DI
The Radial PZ-DI is a unique direct box that is specifically designed for acoustic and orchestral instruments. Unlike most direct boxes that are limited to a 'one size fits all' design, the PZ-DI lets you properly match the input impedance to the source to optimize the frequency response, dynamics and feel so that no matter what type of pickup you employ, you will enjoy smoother, more musically pleasing results. The design begins with a 3-position load adjustment switch: The 1 meg-ohm position...
Our Price: $279.99
Availability: Typically Ships in 3-10 Business Days
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Radial Engineering Reamp JCR Passive John Cuniberti Studio Reamper with Level Control & Filter
Radial Engineering
Item# RAD-REAMP-JCR
The Radial Engineering Reamp JCR is a high-performance passive Reamper that gives you the ability to take a pre-recorded track and send it through a guitar amp or pedal chain, allowing you to explore new sonic textures and experiment with microphone placement, amp and pedal settings without limit. The JCR utilizes the original Reamp circuit designed by recording industry legend John Cuniberti, providing exceptional audio quality that preserves every detail of the original recording while...
Our Price: $249.99
Availability: Typically Ships in 3-10 Business Days
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Radial SB-1 Compact Active DI For Acoustic Guitar & Bass 48V Phantom Powered
Radial Engineering
Item# RAD-SB-1
The Radial SB-1 Acoustic is a high-performance active direct box made for players that are on the move. Made to fit inside a guitar case, the SB-1 is the smallest Radial DI box ever! But don't let the small size deter... this ultra-compact StageBug sounds absolutely terrific! The design begins with standard 1/4" instrument input with a thru-put to feed your tuner or your on-stage amp. The ultra quiet active circuit at once converts the signal from high to low impedance to reduce susceptibility...
Our Price: $89.99
Availability: Typically Ships in 3-10 Business Days
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Radial TRIM-TWO Trim-Two Stereo DI with Volume Control
Radial Engineering
Item# RAD-TRIM-TWO
The Radial Trim-Two is a passive direct box, designed for use with laptop computers and other consumer devices where the user has a requirement for a 'ready access' volume control for quick adjustments on stage. The design begins with a choice of inputs including dual 1/4" jacks, left and right RCAs and a stereo 3.5mm input. These are wired in parallel to allow the signal to be split off to feed an alternate signal path such as monitors. Inside, two great sounding Eclipse transformers do the...
Our Price: $199.99
Availability: Typically Ships in 3-10 Business Days
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Radial PRO-ISO Balanced +4dB to -10dB Unbalanced Passive Converter - Voice Range
Radial Engineering
Item# RAD-PRO-ISO
The ProISO is a stereo interface designed to take a high output +4dB line level signal from a mixing console and convert it so that it may be connected to low level unbalanced devices. In effort to adapt to all of the variables, the output may be adjusted with a recessed `set & forget' level control. This makes it easy to interface professional audio gear with devices such as computer sound cards, iPods or -10dB recorders. To reduce noise problems, the ProISO is equipped with an audio isolation...
Our Price: $199.99
Availability: In Stock
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Radial Engineering JDI Duplex Mk4 Stereo Direct Box
Radial Engineering
Item# RAD-DUPLEXMK4
The Radial JDI Duplex is a full-feature, stereo passive direct box designed to enhance connectivity, reduce noise, and simplify the hectic life of the touring professional, broadcast engineer or AV integrator. It is plug-and-play easy to use while delivering the utmost sonic quality. Like the Radial JDI, the Duplex employs two high-performance Jensen audio transformers with the same pristine audio signal path that has made the JDI the industry standard. It features exceptional signal handling...
Our Price: $459.99
Availability: Typically Ships 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: Typically Ships in 3-10 Business Days
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Radial - ProRMP Re-Amping Box
Radial Engineering
Item# RAD-PRORMP
For years, Reamping has been the 'secret weapon' for countless recordings by the biggest names in the business! Few realize that recording engineers not only Reamp guitars, but often Reamp bass, keyboards, drums and even voice as a means to bring creative new tones and sonic signatures to their music. Reamping has many benefits. You start by recording a clean track and concentrate on capturing the best musical performance. Once the magic has been captured, send the clean track back to the amps...
Our Price: $129.99
Availability: Typically Ships in 3-10 Business Days
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Radial JD7 Injector Signal Distribution Amplifier
Radial Engineering
Item# RAD-JD7
The Radial JD7 Injector is a guitar signal splitter that is able to drive as many as seven amplifiers at the same time and do so without the noise that often plagues most systems. It features A or B selectable inputs with Radial's award winning class-A buffering circuit for ultra low distortion. To ensure maximum signal fidelity, Drag ControlT load correction lets you replicate the load on the guitar pickup as if connected to a tube amplifier for the most natural tone. The hi-Z...
Our Price: $1,359.99
Availability: Typically Ships in 3-10 Business 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 R800 1100 Pro DI Full Range Passive Direct Box

Radial ProD8 Eight Channel Rackmount DI

Radial J48 Active 48V Phantom Powered Direct Box w/Digital Switching Supply

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

Radial J48 Stereo Active DI for Acoustic Guitar & Bass with Extra Headroom and High-Pass Filter

Radial SB-5 Compact Stereo DI For Computers W/ Attached Cable Stereo or Mono Out

Radial SB-2 Compact Passive DI For Bass & Keyboards W/ Stereo To Mono Mix

Radial Tonebone Bassbone V2 Bass Preamp and DI Box

Radial BigShot ABY True Bypass Switcher

Radial BigShot I/O True Bypass Instrument Selector

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

Radial JDV Mk5 Super DI - Active Class-A Direct Box

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

Radial Engineering Backtrack Stereo Backing Track Switcher with 3.5mm & 1/4 Inch Inputs and Isolated DI Outs

Radial X-Amp Active Re-Amplifier

Radial Engineering SB-5 Desk Mount L-Bracket for Radial StageBug SB-5 Laptop Direct Box

Radial PZ-DI Piezo-Optimized Direct Box

Radial Engineering Reamp JCR Passive John Cuniberti Studio Reamper with Level Control & Filter

Radial SB-1 Compact Active DI For Acoustic Guitar & Bass 48V Phantom Powered

Radial TRIM-TWO Trim-Two Stereo DI with Volume Control

Radial PRO-ISO Balanced +4dB to -10dB Unbalanced Passive Converter - Voice Range

Radial Engineering JDI Duplex Mk4 Stereo Direct Box

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

Radial - ProRMP Re-Amping Box

Radial JD7 Injector Signal Distribution Amplifier

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