Developed for guitar and bass application but also great for keyboards and hi-fi equipment, the Palmer RIVER wupper Single-Channel Passive Isolation Boxis a single-channel, line-isolation box used to eliminate ground-loop hum and interfering signals when connected between two devices. RIVER wupper is equipped with a 1/4" connector on the input side and a 1/4" connector on the output side. Both the input and output can either be balanced or unbalanced.

RIVER wupper features a simple and failure-proof passive design that requires no battery. It utilizes galvanic-isolation technology via its transformer to preserve the sound quality of your audio channel.

Engineered in Germany and built to last, the unit is virtually indestructible thanks to its rugged, aluminum-and-steel casing and reinforced connectors.

For Guitar/Bass/Keyboard, Hi-Fi    Passive Design    Galvanic Transformer Isolation    1/4" Balanced / Unbalanced Input    1/4" Balanced / Unbalanced Output    Rugged Metal Chassis

• Line isolation for guitar/bass/keyboard. Also suitable for Hi-Fis and car stereos
• Single channel: 1/4" instrument-/line-level input and 1/4" line-level 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 aluminum and steel
• Includes rewritable tour label for attachment onto the back of the wupper
• Engineered in Germany

Related Questions and Answers

Q: 1. Can I ask please, if this comes as one pad or a pair; enough for two speakers? Thank you

A: The Auray IP-L is a single isolation pad.

Q: 2. What is the thickness of the thinner portion of the platform?

A: These are the dimensions provided by the manufacturer:Surface Area12.75 x 11 (32.4 x 27.94 cm)Dimensions12.75 x 12.75 (32.4 x 32.4 cm)

Q: 3. What happens when it gets hit with 48v? Will it pass through to the computer?

A: This product is to convert a 3.5mm line level signal out from a computer to an XLR mic level signal. No 48 volt phantom power should be involved in this procedure.

Q: 4. will these fit Mackie HR824?

A: Hi, Yes, the large isolation pads will fit the Mackie HR824 monitor speaker. Thank you for shopping at B&H!

Q: 5. I just need to know if this pad come as pair or just one piece

A: The Auray IP-S ships as a single pad as indicated.

Q: 6. Are these better than a thick yoga mat?

A: Yes, the Auray IP-M isolation pads should work better than a yoga mat to absorb vibrations created by studio monitors. But the yoga mat will definitely work better than the IP-M pads would for yoga! :)

Q: 7. On the Palmer PAN 02 PRO Active DI Box What would happen if you plug in a xlr balanced signal into the the input labeled xlr unbalanced?

A: You would not experience any problems if you connect a balanced signal via XLR to the unbalanced XLR input on the Palmer PAN 02 PRO Active DI Box. The input will be grounded once it is connected and there is a ground switch as well as a transformer-balanced output which helps mitigate any unwanted noise.

Q: 8. These should fit the KRK Rokit 8's ok, correct?

A: Yes they will be fine.

Q: 9. Can anyone tell me how thick these isolation pads are?

A: As you can see from the images, the pad slants from the back to the front. The height at the very back is 2.25 and the height at the lowest point of the slant is 1.75 . The front lip section is the same height as the very back, at 2.25 .

Q: 10. Does this work with a down firing sub woofer?

A: This is designed for forward firing speakers, not really for downward. I would look more into a thin sheet of Neoprene or rubber for under the sub.