Radial Engineering ProD8

Radial Engineering ProD8

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The ProD8 from Radial Engineering is an eight channel passive direct box mounted in a 19" rack-mount chassis that does not require any powering to make it work. The high performance Radial transformers are extremely efficient and will both balance the signal and convert the high source impedance of a keyboard to a balanced, microphone level low impedance output.

All channels are identical and completely isolated. Each channel features two inputs that are merged to mono using a resistive mixer. This means the user can use either input for a mono source. For a stereo source such as a synthesizer or digital piano, connecting the instrument to the two inputs will yield a mono mix at the XLR output.

For those wishing to connect a high output device like a CD player to the unit, a -15dB pad reduces the input level going to the transformer and avoids saturation. The 1/4" THRU connector is a direct feed that is used for a personal monitoring system. A 180° polarity reverse switch is internally mounted and factory set with pin-2 hot.

An effects-loop on every channel allows the two inputs on each channel to share the same effects processor. The THRU output can be assigned either pre or post the effects-loop depending on individual requirements. For greater system setup flexibility, the ProD8 features a reversible set of rack ears that allows the 1/4" input panel or the XLR output panel to be positioned at the front or back.

  • Eight-channel rack-mount direct box
  • 100% discreet Class-A electronics
  • Each channel transformer isolated to eliminate noise
  • Each channel features an effects-loop that works like an insert on a mixing console
  • Pad switch engages a -15dB pad to reduce the input level and prevent overload from high output devices
  • Military-grade double-sided PCB is bolted to steel standoffs for road-tough construction
  • Connectors are 100% electrically isolated from the chassis
  • Can drive a guitar signal 300 feet without loss
Input Connections 16 x 1/4" TRS phone Input
8 x 1/4" TRS phone Insert
Output Connectors 8 x XLR
Input Level Not specified by manufacturer
Output Level Not specified by manufacturer
Controls -15dB pad switch
Ground lift switch
Phase switch
Frequency Response 20Hz to 18kHz
Noise Not specified by manufacturer
Power Passive
Dimensions (WxDxH) 19" 1U rack-mount
Weight Not specified by manufacturer
Specialties Reversible rack ears allow for setting up the ProD8 with either the 1/4" jacks or XLR connectors facing front
Packaging Info
Package Weight 8.5 lb
Box Dimensions (LxWxH) 22.3 x 10.4 x 4.8"

Shipment processing time

  • All orders are processed within 2-3 business days.
  • Real-time order tracking information will be sent via SMS and EMAIL once your order has been successfully processed and captured.
  • Standard/Free shipping does not include delivery on weekends or holidays.
  • Deliveries on weekend and holidays can be arranged at an extra charge to customer.

If we are experiencing a high volume of orders, shipments may be delayed by a few days. Please allow additional days in transit for delivery. If there will be a significant delay in shipment of your order, we will contact you via email or telephone. We appreciate your patience!

Shipping rates & delivery estimates

Orders below R850 does not qualify for free shipping.

Please factor in a nominal nationwide economy road 2-3 Day ETA charge of R150.

Shipment method

Estimated delivery time

Shipment cost

Economy Road

2-3 business days

Free / R850 and above

Everyday shipping as per Economy Road freight, we work with a few different courier companies and special services are available. Please request any service which’ll be the most convenient for you and Technical Sales will gladly investigate it and revert for your consideration.

* Overnight delivery is only available for orders with delivery addresses within South Africa and confirmed before 10AM the given morning.

Delivery delays can occasionally occur, your Technical Sales Rep will keep you up to date.