All batteries have useful life and health percentage, in the best health conditions, the internal battery can work for up to 8 hours without recharging.
No. More than 90% of commercial speakers have a paper screen that cannot be waterproof, but all passive Dynapro bands are resistant to water and moisture, but not waterproof.
All Dynapro two way single speaker bands are 8 ohm regardless of speaker size.
All Dynapro full range single speaker bands are 16 ohm regardless of size.
All Dynapro two-way speaker bands are 4 ohms regardless of speaker size.
All Dynapro full range single speaker bands are 8 ohm regardless of size.
For more information about the specifications of the bands, please read the specification sheet inside the package.
The answer to this question is generally given by the amplifier manufacturers, in general the total resistance of the bands should not be less than 2 ohms. This is equal to 4 bands of 8 ohms or 2 bands of 4 ohms for each input.
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