Palmer PWUPPER Passive Line Isolation Box
SKU: 77304701751

Palmer PWUPPER Passive Line Isolation Box

Sale price$156.59 Regular price$173.99
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Ships within 48 hours · Estimated delivery Jul 8 - Jul 13

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Description

Palmer PWUPPER Passive Line Isolation Boxhe more complex the setup, the higher the chance of ground loops. With the Palmer wupper Line Isolation Box, everything is quiet again so you can enjoy your audio without humming and buzzing. The Palmer wupper is an isolation transformer in a robust aluminium and steel housing. It separates the ground potentials of two devices so that equalising currents are prevented and only your sound is transmitted clean and without interference. The Palmer wupper

he more complex the setup, the higher the chance of ground loops. With the Palmer wupper Line Isolation Box, everything is quiet again so you can enjoy your audio without humming and buzzing.

The Palmer wupper is an isolation transformer in a robust aluminium and steel housing. It separates the ground potentials of two devices so that equalising currents are prevented and only your sound is transmitted - clean and without interference.

The Palmer wupper was developed for guitar and bass applications, but its brilliant, unaltered sound is just as suitable for keyboards and hi-fi equipment. The inputs and outputs with jack connections can be balanced or unbalanced. This means that the Palmer wupper can also be used to balance unbalanced signals, which allows longer cable runs without affecting the sound. Due to its passive design, the wupper requires neither batteries nor phantom power. This makes it extremely failure-proof.

The Palmer wupper is a simple, efficient humming killer: Connect it between two devices and the interference is gone. Sometimes it can be that simple!

Features

  • Line isolation for guitar/bass/keyboard; also suitable for HiFis and car stereos
  • Single channel: Jack input and -output
  • Reliably eliminates ground loop hum and interfering signals
  • Galvanic transformer isolation
  • Can be used to balance signals
  • Pure and unaltered sound
  • Passive operation: simple and failure-proof
  • Distortion-free up to +6 dBu
  • Solid casing made of aluminium and steel
  • Incl. rewritable tour label for attachment onto the back of the wupper

Specifications

General
Product type line isolator
Channels 1
Type passive
Transformer isolated Yes
Inputs 1
input type balanced/ unbalanced
Input connectors 6.3 mm jack
Outputs 1
Output type balanced/ unbalanced
Output connectors 6.3 mm jack
Ground lift switch no
Housing Aluminium continuous casting
Dimension (H/W/D) 110 x 50 x 50 mm
Weight 0,3 kg
Ambient temperature during operation -20 - 70 °C
Relative Humidity < 80 %, not condensing
Accessories (included) Inscription label (tour label), rubber feet
Audio
Max. input level (< 1% THD, 20 Hz) + 10 dBu
Max. input level (< 1% THD, 1 kHz) + 32 dBu
Frequency response (±0,2dB, relative 1kHz) 20 Hz - 20 kHz
Input impedance (1 kHz) 17 kOhm
Output impedance (1 kHz) 500 Ohm(s)
THD (30 Hz, +4 dBu, unity, unweighted) < 0,09 %
THD (1 kHz, +4 dBu, unity, unweighted) < 0,002 %
IMD (SMPTE) (60 Hz / 7 kHz, 4:1, +4 dBu) < 0,002 %
Transformer ratio 1 : 1
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: 77304701751

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4.5 ★★★★★
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Product Reviews
T
Verified Purchase
TB
Natrona Heights, US
★★★★★ 5
Perfect!
Color: Black
We love this thing, we just pass them all now!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 12, 2026
M
Verified Purchase
Mike B
Louisville, US
★★★★★ 5
Maybe the best glove in golf! Wife loves the glove!
Color: White, Size: Medium-Large, Style: WeatherSof Prior Generation, Configuration: Worn on Left Hand
My wife loves her glove! Comfortable, fits well and is pretty durable in the short term use. Time will tell if it’s durability is long term or not.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 29, 2025
I
Verified Purchase
Indy Customer
Bozeman, US
★★★★★ 5
Part of Your Skin
Color: White, Size: Large, Style: WeatherSof Prior Generation, Configuration: Worn on Left Hand
Golf clubs are worn to steady your grip, keep the grip clean and most of all--keep the club from flying out of your hand. This glove does the trick and even after 18 holes feels invisible--like part of your skin. It is snug but not constricting. The glove is part mesh and has strategic cutouts so that it breathes. I golf for fun and bought this at the suggestion of a very fine golfing friend. It is well made for a good price.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 20, 2024
J
Verified Purchase
Junk! Falling apart. Don’t buy this crap
New York, US
★★★★★ 5
Quality/value ratio is high.
Color: White, Size: Large, Style: WeatherSof Prior Generation, Configuration: Worn on Left Hand
Great quality and fit. Bought 2 more since they are a great value.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 30, 2025
M
Verified Purchase
MakennaB
Port Orchard, US
★★★★★ 4
Runs small
Color: White, Size: Small, Style: WeatherSof Prior Generation, Configuration: Worn on Left Hand
This is an amazing product, but it does run a little small
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 17, 2024

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