Radial JD7 introduction


	“Who knew thqat splitting guitar signals and re-amping could be so fun?! The Radial JD7 is da Bomb!!” ~ Kyle Kelso, producer/engineer

Introduction to the JD•7 Injector

A creative tool for making music!
Without a doubt, the most important question when buying a new piece of gear is: “will this assist me in the creative process of making music?’. The Radial JD7 Injector is a creative tool that achieves this goal by allowing the guitar player to maximize the use of his equipment with ‘single button’ control over complex signal routing. The JD7’s simple and intuitive design opens the door to a completely new ‘pallet of sounds’ by allowing any number of amplifiers, effects, and modelers to be used alone or in-tandem without introducing artifacts, noise or hum.

The ultimate goal in developing the JD7 is to present the musician, engineer and producer with a creative tool that will not get in the way of making music. With the Radial JD7, getting ‘the right sound’ has never been easier!

Be prepared to be shaken and stirred!
The Radial JD7 is a high-impedance ‘unity-gain’ guitar signal ‘distribution amplifier’ with dual selectable high-impedance inputs and 7 high-impedance outputs. Any one or all of the outputs may be selected at one time. There are separate effect loops on outputs 5 and 6 that may be inserted at the touch of a button.

The JD7 is also equipped with a balanced output and a balanced input to allow dry recording and wet remixing of guitar signals. Finally, the guitarist can also be the producer!

	Connect your JD7 to up to seven amps or devices without degrading your signal. You won't loose ANY of your instrument's subtle nuances. Use the balanced I/O to re-amplify your dry recorded guitar tracks to experiment some more.

		*It all starts with great sound...* The Radial JD7 was designed from the ground-up to sound right. We begin with a high, 1-meg Ohm input circuit impedance to emulate a classic vintage amplifier. This reduces pick-up loading while achieving maximum bandwidth. A FET driven, Class-A input circuit (no op-amps) is combined with the world’s finest Jensen Transformers to distribute the original signal at unity gain to all seven outputs without artifact. Class-A circuits are the preferred choice by audiophiles due to their ability to recreate sound without artifact. We do not believe it is our place to start changing the sound of a ‘57 Strat or ’62 Les Paul. The JD7 produces clean, natural sound with virtually zero harmonic, phase and inter-modulation distortion. In other words you get out exactly what you put in: nothing altered, nothing changed. *You can brag about our Drag!* Sometimes being too perfect is a problem. This is why we invented Drag control. When a guitar is connected to an amplifier, the amplifier’s input circuit reacts with the pick-up by naturally creating a load that we take for granted. This is what makes a particular amp and guitar combination sound the way it does. For instance a low-output single-coil pick-up will react differently than a high-output humbucker on the same amp. Even the length and type of cable will make a subtle difference. The JD7 provides a ‘perfect’ input for the pick-up and a ‘perfect’ output for the amp. Hence the problem: Since the amp no longer ‘sees’ the guitar, the natural ‘signature’ is lost unless compensated for. This is Drag control. Drag allows you to ‘dial’ in the exact tone of your instrument to simulate the guitar-to-amp relationship. And it is extremely musical. Once you start playing with it you may not leave it alone! *Press here for inspiration...* Plug it ‘all’ in and instantly, with a touch of a button, amazing new textures can be created. Never before heard amplifier and effect combinations are spawned giving the professional guitar player a completely new set of tones. With 7 outputs, the JD7 is ‘surround ready’ for 5.1 and 7.1 film scoring and ultra-thick layering. Now you ‘can’ be inside the wall of sound! Outputs 1 and 7 (rear panel) are direct while 2 through 6 are Jensen Transformer isolated. Hum is often encountered when connecting different amplifiers together and is most noticeable when combining tube amps with solid-state equipment. Isolation transformers eliminate ground hum and buzz and Jensen’s do it best! These are also equipped with ground lifts to avoid ground loops and 180º polarity reverse switches to realign drivers and for creative effects. Any or all outputs can be selected at one time. Channels 5 and 6 also feature separate effect loops. These feature individual send and receive jacks on the rear panel and the effect loops can be switched in or out with the touch of a button. This allows ‘instant’ direct to amp (dry) or effect (wet) comparison. *A Balancing Act...* A powerful feature on the JD7 is the balanced input and output section on the rear panel. The Radial JD7 balanced XLR-M output is typically used to record the dry signal on a separate track. During playback, the track can then be sent back through the JD7’s balanced XLR-F input for remix to all of the amps and effects allowing you to find that perfect sound for track. For the 1st time, the musician becomes can also be the producer! The XLR-M output features Jensen’s finest JT-DBE transformer for cable runs to 300 feet. The XLR-F input connector features an adjustable input level control for maximum signal to noise control while the input overload is monitored with the front panel clip LED. *Built like a Tank...* The JD7 features 14-gauge steel and welded seams throughout in a standard 19” single space enclosure with a dark enamel finish with for maximum durability and it is backed up with a full 3-year warranty. We’ve even added a lock to make sure the power supply cable does not get unplugged! *With the JD7, You can have it all!* Virtually unlimited sound combinations, no added noise, distortion or artifact, and the true-to-the-source performance that has made Radial the most sought after instrument interfaces on the planet.

email: info@radialeng.com

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