Low-impedance headphones are in the range 16 to 32 ohms and high-impedance headphones are about 100-600 ohms. As the impedance of a pair of headphones increases, more voltage (at a given current) is required to drive it, and the loudness of the headphones for a given voltage decreases.
Yes, taking to much Vitamin D can cause some people to get diarrhea. Some others may experience constipation from to much Vitamin D.
Consuming excess amounts of vitamin D can result in hypercalcemia, which is an excess amount of calcium in the blood. Too much vitamin D can also cause nausea, vomiting, increased thirst, frequent urination and kidney problems. The upper limit for vitamin D is 50 micrograms per day.he upper limit for niacin is 35 milligrams. Excess amounts can cause gastrointestinal problems and redness of the face and neck, which is called flushing. The upper limit for vitamin B-6 is set at 100 milligrams per day.