Do you have a question about the Velodyne ULD-12 and is the answer not in the manual?
Read and retain all operating instructions. Avoid water, heat, and ensure proper ventilation. Unplug when unused.
Connect using speaker-level or line-level inputs. Use appropriate cables and do not use both simultaneously.
Diagram and instructions for connecting the ULD-12 using speaker-level 'FROM AMPLIFIER' inputs.
Diagram and instructions for connecting the ULD-12 using line-level inputs between pre-amp and power amp.
Optimize placement for bass response and adjust the subwoofer level for desired balance with other frequencies.
Clean cabinet with a damp cloth. Unit has protection circuitry against voltage drops or excessive signal.
Check connections first. Contact dealer for damaged cords, abnormal operation, or water exposure.
Explains nonlinear distortion in loudspeakers, especially at low frequencies, and its impact on perceived bass.
Details the motional feedback and servo-motor system for reduced distortion and improved accuracy.
Describes key components like crossovers, loop/control stage, power amp, custom driver, and accelerometer.
Details amplifier power, sensitivities, and driver characteristics like diameter, travel, and voice coil.
Lists crossover frequencies, cabinet dimensions/weight, and servo loop gain/feedback rate.