SKU: 75973210884

Radial Engineering PZ-DI Orchestral Instrument DI

Sale price$157.50 Regular price$175.00
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Ships within 48 hours · Estimated delivery Aug 12 - Aug 17

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Description

Radial Engineering PZ-DI Orchestral Instrument DIThe 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

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 delivers the classic impedance found on most active DI boxes. The 220k-ohm setting warms up the tone of a magnetic pickup to give you the feel and tone as if connected to a tube amplifier. The ultra-high 10 meg-ohm impedance is used to compensate for the harsh, squawky tone that usually plagues piezo-equipped instruments. This is followed by a fully variable high-pass filter that lets you 'size the instrument' by gently rolling off bass frequencies to eliminate unwanted resonance. You could for instance, retain the low frequencies on a cello or increase the cut-off point to better suit a violin. For active instruments such as acoustic guitars that incorporate a battery powered preamp, you can engage a low-pass filter to gently soften the hard edge for a smoother more natural tone.

To maximize signal handling and reduce distortion, the PZ-DI incorporates an innovative DC to DC switching supply that converts the phantom power to deliver extra headroom. This provides ample dynamic range for acoustic instruments. Should an extra loud source such as an active bass or digital keyboard be encountered, simply activate the -15dB pad to satisfy the situation. Other problem solvers include a 180° polarity reverse switch to tame hot spots on stage that can cause feedback and a ground lift switch to help eliminate hum and buzz caused by ground loops.

  • Optimized for orchestral instruments on a live stage
  • Adjustable load for piezo and magnetic pickups
  • Variable low-cut filter to control bass resonance
  • 48V phantom powered, does not require batteries
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 75973210884

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4.0 ★★★★★
Based on 13 reviews
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Verified Purchase
Amazon Customer
Charlottesville, US
★★★★★ 5
It Works!!!!!
Size: Powder Poli Ox - Pack of 6
We have only completed the first two steps it Poly Glo set we purchased and has it ever made a difference in the look of our hauler/trailer! The dull oxidize black color is somewhat shiny. Cant wait to put the final two steps on it! A little elbow grease and work did wonders! We will share a photo once the procedure is complete!
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Reviewed in the United States on May 19, 2026
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Verified Purchase
Amazon Customer
Port Orchard, US
★★★★★ 4
Could be good
Size: Powder Poli Ox - Pack of 6
I cleaned my RV very thorough from top to bottom before even starting the process with the Poli Glow system. Here's what I learned despite videos and lots of reading reviews. 1. Must be very clean and clear of anything you dont want to stick and show on your final outcome. 2. It takes more coats than you think it would (after 3 coats) it was still really streaky and I was starting to regret using Poli Glow. I ended around 7-8 coats and my rig had no major oxidation at all. 3. As one reviewer said, use a clean microfiber cloth v the applicator that comes with it, I found much better results with no lines. 4. Dont go to heavy on the coating, the instructions say this, but I went super light and it can be very easy to get lines with heavier application. 5. Dont look at your work after 3 coats, you will feel deflated, just keep going for at least 6 coats and then look at your work. 6. Only do small areas and look out for drips and lines, you need to get them out right away. 7. I did not use the Poli Ox, I was able to get any oxidation out with just the Poli Prep 8. Going up and down a ladder for hours sucks! 9. I hope it will come off in the next couple of years when I plan to replace the decals. Honestly, thats my biggest fear is how hard it will be to remove when the time comes. 10. After a scary start, I will say it did turn out pretty nice, was it easy, nope, would I do it again? Not sure, I need some time for my back to heal up! If you do choose Poli Glow know there are other options that maybe a better way to go such as wet sanding etc. Poli Glow is pretty good, but it can be pretty bad also if the surface is not cleaned and the Poli Glow applied correctly.
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Reviewed in the United States on August 17, 2023
D
Verified Purchase
Derek Baloun
Louisville, US
★★★★★ 5
Poli glow works!
Size: Powder Poli Ox - Pack of 6, Size: Powder Poli Ox - Pack of 6
Works amazing! After many attempts to buff I purchased Poli glow and done in less than half the time and beautiful result.
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Reviewed in the United States on April 19, 2026
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Verified Purchase
Amazon Customer
Waukegan, US
★★★★★ 5
Wonderful product
Size: Powder Poli Ox - Pack of 6
This product has exceeded our expectations. Thank you
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Reviewed in the United States on May 20, 2026
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Verified Purchase
LeGris
Massapequa, US
★★★★★ 3
Good but DO NOT USE APPLICATOR MITT
Size: Powder Poli Ox - Pack of 6, Size: Powder Poli Ox - Pack of 6
The poli-ox worked well, just know that it will require several applications to remove old buildup and oxidation. once you are done, the paint will still look oxidized, but once you put the sealer on, the color will be deep and shiny. The sealer itself is supposed to be enough for a much bigger RV than we used it for. (17') We used 3/4 of a bottle for 1 side, due to the fact that we would remove and start over because it left ridges like a brush in paint. On the second side of the RV, we scrapped using the Mitt, and low and behold, using a microfiber towel to apply solved all of the issues. No more ridges and the remaining 1/4 of the bottle was enough to apply 5 coats. The mitt also wastes a LOT of product. So be warned use a Microfiber towel (that has been previously washed) and it will save you a LOT of time, money and angst.
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Reviewed in the United States on March 12, 2023

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