POWERX PRO 21 RD 2000 V2

- 2000 AES Watt / 4000 Program Power
- 139.7mm (5.5 inch) voice coil
- 30Hz to 200Hz Frequency Response
- 98 dB 1w @ 1m Sensitivity
- Ferrite Magnet Structure
- Carbon Cone

- Nominal Diameter: 21 inches
- Power Handling Capacity: 2000 AES Watts / 4000 Program Power Watts
- Max Power: 4000 Watts
- Nominal Impedance: 8 Ohms
- Sensitivity: 99 dB (1w/1m) and 98 dB (1w/1m)
- Frequency Range: 30-200 Hz
- Voice Coil Diameter: 150.6mm / 6 inches and 139.7mm / 5.5 inches

Thiele-Small Parameters:

- Fs: 32 Hz and 33 Hz
- Re: 5.3 Ohms and 4.5 Ohms
- Qms: 5.64 and 10.06
- Qes: 0.32 and 0.36
- Qts: 0.34 and 0.36
- Vas: 214.5 Liters and 204 Liters
- Mms: 458.8 grams and 425 grams
- Cms: 0.052 mm/N and 0.05 mm/N
- BL: 38.27 Tm and 33 Tm
- Le: 2.79 mH and 1 mH
- Xmax: 11 mm and 2 mm
- Sd: 1700 cm^2 and 1626 cm^2

Dimension:

- Overall Diameter: 534 mm
- Bolt Circle Diameter: 548 mm
- Baffle Cut-out Diameter: 496 mm and 494 mm
- Overall Depth: 245 mm and 247 mm
- Net Weight: 24.6 Kg and 24.6 Kg

Additional Information
- AES power is measured with 6dB crest factor continuous pink noise in 2 hours duration.
- Max power is defined as 3dB higher than the nominal rating.
- Sensitivity is measured at one metre at 2.83v and 8 ohm nominal impedance.
- All measurement of the speakers is done after a sufficient high level of 20Hz sine wave test.
- Xmas is defined at the BL drops by 18% of the original figure.