SKU: 11567615566
feedback loop pedal

feedback loop pedal Akkusativ – RDRPT, feedback looper – Pedal Markt

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Description

feedback loop pedal Akkusativ – RDRPT, feedback looper – Pedal MarktRDRPT is an experimental device inspired by noise music, specifically no input mixing techniques. It's intense, chaotic and loud. Feedback patching opens up a whole other world of possibilities for using effects you already own. A world that is as exciting as it is unforgiving. Standalone, with nothing plugged into SND & RTN jacks, RDRPT can act as a distortion pedal, an oscillator, or a mute switch. When other pedals or pedal chains are hooked up to

RDRPT is an experimental device inspired by noise music, specifically no-input mixing techniques. It's intense, chaotic and loud. Feedback patching opens up a whole other world of possibilities for using effects you already own. A world that is as exciting as it is unforgiving.

Standalone, with nothing plugged into SND & RTN jacks, RDRPT can act as a distortion pedal, an oscillator, or a mute switch.

When other pedals or pedal chains are hooked up to SND & RTN, and RDRPT is on, it feeds a portion of their output signal (RTN) back into themselves (SND). When the pedal is off, the IN signal is connected to SND, RET to OUT. That way it is still possible to use the pedals sitting in the feedback loop when the device is off.

Controls

  • feedback knob controls how much of the RTN signal is fed back to SND;
  • gain knob controls how much of the IN signal gets to SND;
  • volume knob controls the overall output volume of the pedal, the OUT signal;
  • clip toggle puts clipping diodes in and out of the circuit:
    • o position puts clipping diodes just before the output of the pedal;
    • x position takes the diodes out;
    • f position puts the diodes into the feedback path;
  • phase toggle flips the phase of RTN signal before it is mixed with the IN signal;
  • RPT footswitch is a latching switch that turns the feedback path on or off;
  • FLIP footswitch is a momentary switch that reverses the RPT state. So if RPT is “off”, stepping on FLIP will momentarily turn the feedback on, if the RPT is “on”, FLIP will momentarily turn it off.

Caution

Anything feedback-related can lead to extreme changes in volume. Please be careful. As a precaution, it might be a good idea to place a limiter (or a distortion pedal on low gain setting) right after RDRPT to tame the sudden loud sounds.

When you have time-based effects in the loop like delays and reverbs, be careful with rolling off the volume knob. I’d recommend keeping it above 50% in this case. Experiment turning the loop on & off to find the optimal position. The issue here is that the volume knob and the clip toggle only take effect when RDRPT is on. That means there might be loud feedback going on that is tamed by RDRPT, and once you switch RDRPT off, all the reduction in loudness is off too. Then whatever delay / reverb tails are still pending might be unexpectedly loud.

Specs

  • 1590BB enclosure: 120mm x 94mm x 33mm
  • 9VDC center negative power supply
  • Reverse polarity protection circuit
  • Buffered bypass using an analog switch IC

Patch Ideas

Delay alterations

  • Put a Delay or a Reverb pedal into the SND/RTN loop. Set the Delay/Reverb pedal to minimum Repeats/Feedback/Decay, mix to 100%;
  • RDRPT’s feedback knob now becomes an external Repeats/Feedback/Decay control for the chain, basically replicating a function that normally exists inside the Delay/Reverb pedals and giving us access to it;
  • Try placing other pedals in series with the Delay/Reverb in the loop. For example a pitch shifter will give us shimmer-like sounds, a filter will give us filter-delay, bit crusher will lead to degrading delay repeats.

Controllable feedback 

  • Put a Volume pedal into the SND/RTN loop. A filter with an expression control would also work. Add other pedals in series with it if you like;
  • Put the Volume pedal into heel position, RDRPT’s feedback knob to maximum;
  • It is now possible to control the intensity of feedback with a foot pedal.

Mute switch

  • Put RDRPT’s Volume knob, Gain knob, Feedback knob on minimum;
  • RDRPT will act as a momentary or latching mute switch.

Oscillator

  • Set Gain to zero or disconnect your instrument from the IN;
  • Leave RTN unconnected or turn off pedals in the loop;
  • Feedback becomes a pitch control, clipping affects the characteristics of the oscillation.
Shipping Notes
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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: 11567615566

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Jay Hammer
Pawtucket, US
★★★★★ 5
Perfect with a MacBook
The Anker USB C Hub works great with my MacBook Air. I paired it with the Anker 100W MacBook charger which plugs directly into the USB C Hub so I only have to plug in one cable like a true docking station. My Apple MagSafe charger stays in my briefcase so I always have a charger when I'm away from my desk. I also plug in my external monitor and an external hard drive. I highly recommend this product!
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Reviewed in the United States on June 5, 2026
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MB
Los Angeles, US
★★★★★ 5
Great All-in-One Hub, With Few Limits
Style: 8 in 1 【2 HDMI + Ethernet】
This is a solid USB-C hub if you need to expand your laptop’s ports. It covers all the basics—dual HDMI, USB ports, Ethernet, and SD card slots—all in a compact design. Setup is plug-and-play, and it’s been reliable for everyday use.  The dual monitor support is a big plus, but keep in mind on Mac, both screens will mirror instead of extend.  Downsides: it can get a little warm with heavy use, and you’ll need your own power adapter to get full charging performance. Bottom line: Great value and functionality for most users—just know the limitations depending on your device.
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Reviewed in the United States on April 1, 2026
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Arthur
Chelsea, US
★★★★★ 5
Reliable Dual-Monitor Hub That Adds Useful Ports Without Extra Bulk
Style: 8 in 1 【2 HDMI + Ethernet】
Anker PowerExpand 8-in-1 USB-C PD Media Hub Dock is a very practical docking option if you want dual-monitor support without moving to a full desktop dock. The dual HDMI outputs make multi-screen setups easy, the extra USB ports handle everyday accessories well, and pass-through charging helps keep a laptop powered through a single connection. It is compact enough for travel but still feels sturdy for daily desk use. One important advantage is that setup is usually straightforward, though Mac users should know dual external displays may mirror instead of extend because of macOS limitations. Overall it offers strong value for productivity, home office use, and clean cable management.
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Reviewed in the United States on March 16, 2026
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Juan
Fort Morgan, US
★★★★★ 5
Really solid docking station
Style: 8 in 1 【2 HDMI + Ethernet】
I’ve been using this Anker 8-in-1 docking station for a little while now, and honestly, it’s been a great upgrade for my setup. The dual HDMI ports work perfectly with my two monitors, and both displays look sharp in 4K. Plug-and-play was super easy — my laptop recognized everything right away. The hub itself feels sturdy and well-made, and it doesn’t take up much space on my desk. I also like that it has all the essential ports I need, so I’m not constantly unplugging and replugging things. My only small complaints are that it gets a bit warm when I’m running both monitors for a long time, and I wish the USB ports were spaced out a little more. Not huge issues, but worth mentioning. Overall, if you want a simple, reliable docking station for dual monitors, this one is a great choice. I’m happy with it and would definitely recommend it.
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Reviewed in the United States on December 5, 2025
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etr2128
Grantham, US
★★★★★ 4
Compact, Budget Friendly, Decent Functionality
Style: 8 in 1 【2 HDMI + Ethernet】
The design is simple to use, small in size and is very lightweight. The value for your money is good when compared to other usb/hdmi dock hubs. The cable that runs from the device to your PC could be longer as it can be a little awkward depending on your desk configuration. The only problem I had was a small defect in manufacturing specifically with the ethernet port. There was an extra bit of metal casing that made it very hard to remove the ethernet connector after use and/or would scrape the plastic connector until it eventually made clearance in the plastic. It was rectified by simply removing the malleable defect with a small screwdriver. Overall it has been a good buy though and I would recommend it if you’re in need of additional monitor connectivity without breaking the bank.
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Reviewed in the United States on January 14, 2026

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