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Rcf SUB 18-AX
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Active subwoofer
The RCF SUB 18-AX is a professional 18" active subwoofer designed for live performances, mobile installations and demanding environments.
It combines a high-excursion 18" woofer with a high-power Class D digital amplifier to deliver deep, punchy, perfectly controlled bass.
Advanced DSP management (digital crossovers, 8-band EQ, delays, cardioid mode, presets) enables fast, seamless integration with 10", 12" or 15" satellite speakers.
Sturdy construction: plywood cabinet, hard-wearing covering, M20 mast/foot socket, side handles, high-end mains connector.
The SUB 18-AX is designed for easy transport, installation and operation of professional-quality sound systems.
It combines a high-excursion 18" woofer with a high-power Class D digital amplifier to deliver deep, punchy, perfectly controlled bass.
Advanced DSP management (digital crossovers, 8-band EQ, delays, cardioid mode, presets) enables fast, seamless integration with 10", 12" or 15" satellite speakers.
Sturdy construction: plywood cabinet, hard-wearing covering, M20 mast/foot socket, side handles, high-end mains connector.
The SUB 18-AX is designed for easy transport, installation and operation of professional-quality sound systems.
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Technical sheet
- PA power speaker 1001 to 1500 watts RMS
- Type of PA speaker Stage & FOH monitor
- Acoustic characteristics
- Frequency response: 35 Hz - 120 Hz
- Max. SPL (@ 1 m): 135 dB
- Driver: 1 × 18", 4" voice coil
- Cabinet type: bass-reflex
- Amplification / Electronics
- Power: 2,200 W Peak / 1,100 W RMS
- Amplification: Class D
- DSP: 8-band parametric equalizer, digital crossovers with presets
- Time alignment up to 45 m
- Cardioid mode
- L/R balance
- User snapshots
- Cooling: passive convection
- Connections
- Inputs: 2 × XLR/Jack combo (balanced/unbalanced)
- Outputs: 2 × Link XLR outputs + 2 × Xover XLR outputs
- Input sensitivity: -2 dBu / +4 dBu
- Power supply: PowerCON TRUE1 TOP connector (IN/OUT)
- Controls: color touchscreen + rotary encoder, control via mobile app
- Construction / Mechanics
- Cabinet: plywood with durable polyurethane finish
- Grille: steel
- Handles: one handle on each side
- Mounting: M20 threaded base
- Dimensions (H × W × D): 693 × 505 × 685 mm
- Weight: 43.8 kg
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