The Artcoustic Sub Ci4-5 MKII features four 51⁄4-inch long-throw woofers, paired with Artcoustic’s in-house designed 1st order high-bandwidth sealed cabinet technology. Operating Range: 40 Hz (-3 dB) to 400 Hz Sensitivity: 90 dB Max Power: Handling 2 hours of 6 dB crest factor pink noise, 200 Watt RMS (AES Standard)
Impedance: 8 ohms nominal Dimensions: H: 145 W: 1000 D: 99 mm / H: 185 W: 1020 D: 111 mm (w. baffle)

The Artcoustic Subwoofer Series effectively allow for more flexibility in positioning your subwoofers.With this range, you have the advantage of a smaller design, which hereby can be positioned in more suitable places in the room. Operating Range: 15 Hz (-3 dB) to 120 Hz Sensitivity: 99 dB Max Power: 640 Watt Impedance: 8 ohms Dimensions: H: 1000 W: 600 D: 258 mm

The Artcoustic CPH-1000D is a professional 2-channel digital amplifier that performs smoothly and accurately, even in the most demanding conditions. Stereo: 8 Ohm (450W+450W) Bridged: 8 Ohm (1000W) – ref manual for specs Sub Low-pass filter: 80 Hz 24 dB/oct 120Hz 24dB/oct Output terminals: Speaker level binding posts Connectivity: RCA Dimensions (mm): H 44 • W 430 • D 1