The Wharfedale Pro Delta 12" 400W 2-Way Passive Speaker is a mid-sized passive speaker, whilst coming in slightly smaller compared with the 15” model the speaker offers a confident full-range sound. Featuring a 2” titanium voice coil combined with a 12” low distortion cast frame woofer, the loudspeaker generates 400 watts RMS of power while the 90 x 60 waveguides ensure a long-throw projection.
In BI-AMP mode, two power amplifier channels can be used, one for each section of the loudspeaker (HF compression driver and LF transducers). DSP (Digital signal processing) is used to separate the audio signal into specific frequency bands for each amplifier channel, powering only the corresponding driver section inside the loudspeaker. This gives you the advantage of being able to select the optimal power specifications and use independent limiter and EQ settings for each driver, resulting in more granular system control and a safer, more efficient, and protected system.
In PASSIVE mode, a single amplifier channel can be used to power all drivers inside the loudspeaker. The full frequency range is put into the loudspeaker and the loudspeakers’ internal passive crossover separates the frequencies, delivering the right frequencies to the right driver. In the example of a 2-way passive loudspeaker, this means that the single amplifier channel is powering both the HF compression driver and the LF transducers. The internal crossover takes care of both the frequency and power separation.
