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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.
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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
4.2 ★★★★★
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Product Reviews
★★★★★ 5
Worth the price
Scent: Face Wash, Size: 5.1 Fl Oz (Pack of 1)
Although I was hesitant to buy this at first since it’s about twice the price as the facial cleansers I normally use, it’s by far the best face wash I’ve ever used. It exfoliates the skin very well and leaves your face feeling clean after use. Definitely worth the extra few dollars
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Reviewed in the United States on July 23, 2024
★★★★★ 5
For all skin type
Scent: Face Wash, Size: 5.1 Fl Oz (Pack of 2)
It gives the face a very clean wash compare to others i have use in the past, best i have seen so far.
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Reviewed in the United States on October 25, 2025
★★★★★ 3
Greasy, does not blend in well but does not leave white marms
Overall, when researching this product, I saw that it does not leave the white residue on your face like normal sunscreen does, I’m looking for a face moisturizer first with SPF but this one feels more just like an SPF sunscreen. It is pretty greasy shortly and after a few hours of having it on, especially when sweating it makes my face feel really oily, and also it does not blend in very well such as pretty much like I just mentioned you could still feel it on your face a couple hours later but if the no white resident is the most important thing for you, it does not leave that residue. It’s cruelty free and vegan product (no animal products in it or animal testing done) so that’s good but I will most likely not be purchasing this .
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Reviewed in the United States on June 24, 2024
★★★★★ 5
So so good!!!
Scent: Face Wash, Size: 5.1 Fl Oz (Pack of 1)
This face wash is a game changer! From texture to smell it is perfect. I ordered this for my husband to replace his usual "routine" of washing his face in the shower with bar soap (gasp!). I not-so-sneakily put this in the shower and at his first sample of it he was hooked. It's the only face wash he's tried and actually likes to use on a daily basis. Also, the price point is great! Definitely recommend for anyone seeking an awesome face wash at a perfect price.
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Reviewed in the United States on November 12, 2020
★★★★★ 5
A lot of these poems leave me feeling like an idiot
Format: Paperback
This is the type of book I read at 3 am when I can't sleep. Stevens' poetry just makes me feel so calm, even though the content in his poetry is not in fact anywhere near the realms of calm. Overall, I would say, the content is hard-hitting. I'm not going to pretend I understand all of his ideas and everything he says- I definitely don't. A lot of these poems leave me feeling like an idiot. But when I am able to figure something out, it all starts to click and I am left with a lump in my throat. Although I don't necessarily understand everything when it comes to this collection, I think that it is a good thing. It just shows the high level of his talent manages to knock me off my feet.
Well, anyway, I got my first peak of this collection at uni. I was so intrigued by it that I bought it during winter break. While reading it I found out one of my professors is an editor of the edition that I bought. Rad. But also, the thing is, (and I have thought this many times before,) uni can only teach you so many things. I learned much more about Stevens' poetry by reading it myself than what I learned from uni. Like, without reading basically this whole collection, I would have never learned that Stevens is, for the most part, a Romantic. He's a lot like Wordsworth, I think. He inherits so many of the Romantic feelings, ideas and philosophies but he still manages to stay modern at the same time. I am obsessed with the Romantic poets so in my mind, that's what makes him stand out. I love the fact that he manages to tie modernism and Romanticism together, it is a real treat for me to read. Even though it's not really talked about, I would say my favorite poem of his is "Another Weeping Woman". It is so quick and beautiful and earnest and a good poem to read when you lose one of your loved ones.
Over the past couple of years I have really warmed up to poetry. I'm not a huge American lit person in general but I always tell people that Stevens is one of my favorites, if not my favorite American poet. Everything about his work seems so personal, like when you're reading it, it feels like he is speaking directly to you. It feels so natural but honestly nothing about reading his poetry is easy. It is tough to figure out. But I enjoyed taking the time to sit down and try to hypothesize all that is going on in his works. He is dark, so dark and yet manages to feel so light, so beautiful. He delivers the best of both worlds in my eyes and that's why I will revisit this collection again and again and again. It never stops being so hideous and so beautiful at the same time.
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Reviewed in the United States on January 11, 2017