I'm thinking so. I can't replicate your symptoms with mine, whether powered by AA batteries or a Boss PSA-120S 500ma wall wart.Perhaps my unit is defective?
Basses:
- Squier VM Jazz with Dimarzio Area J's, stock wiring and shielding.
- Ibanez ATK305.
- Home-made passive 5-string with Dingwall pickups, copper foil shielding.
MS-60B into MacBook Pro, iPad 2 via:
- Apogee Jam
- Tascam US-800
Monitors: Beyer DT880's, Shure 425SE's, Jensen and Infinity hi-fi speakers fed by an old Tascam DC-coupled integrated hi-fi amp.
Also tested with GK MB200 and MB800 into AudioKinesis Thunderchild two-way cab with a large horn driver.
Moderately noisy electrical environment: Overhead fluorescent fixture, laptop, Tascam interface and pedal plugged into a wall outlet. Monitor system and bass amps plugged into another outlet via power bars, along with a 27" iMac, 24" Dell monitor, APC UPS, cable modem, various backup drives, VOIP phone and line driver, dual-band wi-fi router, and a large Epson all-in-one printer.
