Radial Engineering J-Series Direct Boxes

Sales of Radial J33, J48, JD6, JDI, JDV Mk3, and JPC direct boxes at Sweetwave Audio. Need help? Talk to one of our pro audio technicians. Call us toll free 1-877-258-0563.

Radial J33 Turntable DI

The Radial J33 is a high quality combination turntable (phono) preamp and direct box that offers a choice of balanced mic-level and -10dB consumer line-level outputs. This allows a 33-RPM record player to be connected directly to a professional mixing console or mic preamplifier. This makes the Radial J33 ideal for use in studio for re-recording, sampling and archiving, while offering DJs an improved interface for recording scratch and remix performances over typical DJ mixers or other stand-alone turntable preamps. For maximum flexibility, the Radial J33 is equipped with a rumble filter to eliminate low-frequency resonance and may be powered with remote 48Volt phantom or local external DC supply.

Features

• Stereo RCA inputs
• Stereo RCA, ¼" TRS and 3.5mm outputs
• Balanced mic level XLR outputs
• Low frequency rumble filter
• Choice of 48V phantom or DC supply

Model	List Price	Our Price call 1-877-258-0563
Radial J33 Turntable DI	$200.00

Radial J48 Active Direct Box

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, 180º polarity reverse, a unique merge function to mix two signals to mono, an 80Hz high-pass rumble filter, and ground lift. Like all Radial products, the J48 is built to handle the abuse on the road and has a unique welded I-beam construction for years of trouble free performance.

Features

• Active 48-Volt phantom powered direct box
• Minimal power draw with high rail voltage
• Will not choke when driven hard
• Low inter-modulation distortion

Model	List Price	Our Price call 1-877-258-0563
Radial J48 Active Direct Box	$199.00

Radial JD6 Six-Channel Rackmount DI

The Radial JD6 6 channel direct box has been optimized for use in professional touring applications. Featuring the same highly acclaimed Jensen® transformer equipped circuit as used in the renowned Radial JDI direct box, the JD6 contains 6 completely independent audio channels for 100% isolation, minimal crosstalk and low noise. The Radial JD6 is ideally suited for keyboards, electronic drums and audio-visual systems in both live touring and recording environments.

Features

• 6 discrete Radial JDI DI's in a one RU 19" unit
• Jensen® transformer equipped
• Exceptionally low distortion
• High level handling
• Front and back connections
• Optional hook-up extension panels

Model	List Price	Our Price call 1-877-258-0563
JD6 Six Channel Rackmount DI	$999.00

Radial JDI Passive Direct Box

The Radial JDI is considered by many to be the world’s finest direct box. It is a passive DI that employs a Jensen isolation transformer for optimum audio performance offering outstanding linearity at all frequencies, combined with extraordinary level handling without introducing distortion. Being completely passive, the plug & play JDI does not require any powering and has the unique advantage of eliminating 60-cycle ground loops. This makes the JDI a definite favorite with informed audio engineers. The JDI is great for guitars, bass, and keyboards and is particularly adept with high-output, broadband instruments such as active instruments and digital keyboards. The JDI may be rack-mounted using the J-Rak and is also available in a stereo (2-channel) version called the JDI Duplex and the 6-channel rack-mountable JD6.

Features

• Jensen Transformer equipped passive DI
• 100% isolation eliminates ground loops
• Virtually zero phase & harmonic distortion
• Exceptional signal handling
• High common mode noise rejection

Model	List Price	Our Price call 1-877-258-0563
Radial JDI Passive Direct Box	$199.00

JDI Duplex Mk4 Stereo Direct Box

The Radial JDI Duplex Mk4 is a full-featured passive DI designed to enhance connectivity for the touring professional and AV integrator. The Duplex comes equipped with 1/4" connectors for -10dB consumer electronics and XLR inputs for +4dB professional line sources.

Each Duplex channel employs the same high-performance Jensen audio transformer as the industry standard Radial JDI direct box and has the same pristine audio signal path with virtually zero phase, harmonic and linear distortion. Natural transformer saturation and warm Bessel curve makes the Radial Duplex the perfect choice for rounding out highly dynamic instruments, like digital keyboards, that can sound harsh when driven hard. Transformer isolation also provides the benefit of eliminating troublesome ground loops that can cause hum and buzz and can interfere with video displays.

Radial's innovative 'book-end'™ design provides protective zones that shield connectors and switches from the abuses of professional touring . A welded I-beam inner frame is designed to eliminate outside stresses that could torque the PC board and cause premature solder point and trace failure. A 14-gauge steel shell couples with the mu-metal transformer shield to eliminate stray magnetic field interference from power transformers and a full-bottom no-slip pad provides plenty of stay-put and helps reduce electrical coupling from amplifier chassis hardware.

The Radial Duplex Mk4 is the worlds finest passive stereo direct box.

Features

• Stereo direct box for high-output digital sources
• Jensen transformers for warm Bessel curve
• Virtually zero distortion from 10Hz to 80kHz
• Stereo-to-mono merge (Y-mix) on each channel
• Built tough to handle the extremes

Model	List Price	Our Price call 1-877-258-0563
Radial JDI Duplex Mk4	$350.00

Radial JDV Mk3 Super DI

The Radial JDV Mk3 is arguably the most advanced and sonically superior direct box made today. With 100% class-A circuit and a 30-Volt internal rail voltage, the JDV combines exceptional sonic quality and unmatched dynamic handling for the most natural and uncolored sound possible.

Designed as a creative tool, the JDV introduces a concept of ‘Zones’ with choice of two inputs, four instrument amplifier outputs, and a unity-gain transformerless output.

Features include Drag control for precise pickup load correction, 3.9 meg-ohm input impedance for piezo pickups, hi-pass and lo-pass filters, full LED status indicators, polarity reverse and all of the other features one would expect from a Radial DI.

The Radial JDV Mk3 is designed for use in both the studio and live performance and is suitable for all instruments where added reach is required and retaining the original sound of the instrument without distortion or coloration is paramount.

Features

• Class-A feed forward design
• Huge 30-Volt internal rail voltage
• Innovative Drag control
• Variable impedance to 3.9 Meg-Ohms
• Unique zoned design concept

Model	List Price	Our Price call 1-877-258-0563
Radial JDV Mk3 Super DI	$450.00

Radial JPCT Stereo PC-AV Direct Box

The Radial JPC is a stereo direct box that has been specifically designed for use with computer sound cards and other consumer electronic products to allow these to be connected to a professional sound system. It is unique in that it 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 package.

Transformer coupled inputs have the unique advantage of isolating the ‘source’ from the ‘destination’. This proven approach eliminates 60-cycle hum and buzz caused by so-called ground loops when two pieces of electrically powered devices are connected together. Because the active circuit does all of the impedance conversion and balancing, a dedicated 1:1 transformer can be used. This results in a hybrid design that is at once great sounding, compact and more affordable.

As with all great designs, simplicity is a fundamental trait and the Radial JPC certainly fits the bill. A choice of stereo ¼”, 1/8” and RCA input AND thru-put connectors make interfacing a snap with all types of equipment. A single switch inserts a –10dB pad, two power LEDs confirm 48V phantom is turned on, and a pair of XLR output connectors round out the feature set.

Of course like all Radial products, the JPC is built to handle any environment. The book-cover wrap-around sleeve design protects switches and connectors from damage while the 14 gauge steel I-beam construction eliminates stress that could torque the PC board and cause solder joint failure. A full-bottom no-slip pad provides electrical insulation and mechanical isolation with plenty of ‘stay-put’ for use on hectic stages. And with its baked enamel finish, the Radial JPC will continue looking great for years!

Features

• Stereo DI for computer sound cards & A/V
• Transformer isolation eliminates ground loops
• Converts -10db to balanced XLR mic level
• Active drive circuit for long cable runs
• Compact design - may be J-Rak mounted
• 48V phantom power eliminates batteries
• Ultra rugged 14-gauge steel construction

Model	List Price	Our Price call 1-877-258-0563
JPC™ Stereo PC-AV Direct Box	$199.00