He SUB28 Pro amp is a compact, self powered subwoofer designed to extend the frequency range and power band-width of Audio Performance full-range loudspeaker systems. With a cut-off frequency of 45Hz, the SUB28 Pro amp is made for applications where the reproduction of sub frequencies is of major importance (music, live sound). It consists of one long excursion 8 inch cone driver mounted in a heavily braced vented enclosure.
The SUB28 Pro amp built-in electronics package features a new lightweight, two channel class D audio power amplifier designed specifically for self-powered products. The amplifier module is a sophisticated switch mode power supply, class-D amplifier design capable of delivering more than 2 x 350W RMS into 4 ohms and adding only 3 Kg to the weight of the cabinet.
Four presets are available on the back of the subwoofer. Preset 1 is the full range, flat frequency response for one SUB28 Pro amp and one DRL12. Presets 2, 3 & 4 increase the Subwoofer level by step of +2dB.
Frequency response (1): 45Hz - 120Hz
Maximum SPL peak (2): 131dB
Low frequency: 1 x 8" inch, ferrofluid cooled, long excursion cone driver
Output power (low1) (5): 350W (EIAJ-1KHz, 1% THD)
Output power (low2) (5): 350W (EIAJ-1KHz, 1% THD)
THD, DIM, SMPTE: <0,05%
Type: Analog Differential balanced input circuit
Connectors: Female XLR; Male XLR loop
Nominal impedance: 10K Ohm
Connectors: 3-pin IEC male receptacle
Input voltage: 115V - 230V nominal +/- 10%
Sampling rate: 98 Khz
Basic delay: 0.76 ms
Dynamic range: 115 dB
Cabinet Size (WxHxD): 536 x 436 x 536 mm
Cabinet finish: 15mm plywood, black epoxy painted
Rigging: M20 connecting plate
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