Sound Projects - SP18E

Sound Projects - SP18E

The SP18E is a compact self-powered high SPL sublow system. The cabinet is constructed of a rigid, multilayer birch ply reinforced with multiple bracing and finished with a sturdy coating. The SP18E is easy to handle particularly due to an inventive cabinet construction holding a 4 inch long coil neodymium driver and ultralight 2500 Watt CCD amp. An impressive featherweight of 58 kg solid sub.

Cabinet dimensions are optimised for international trucksize. Ergonomical grippoint layout, Nano Armor polyurethane coating and additional corner protection with muliple slide bars facilitate easy transport. Protective slidebars facilitate locked stacking of more cabinets. Polemounting can be done standing or flat. The SP18E will endow any of F.O.H. system with a rock solid foundation in the lowest audible octaves.

The SALC (Single Audio-logic Level Control) speaker management is a proprietary RMS based gain riding circuit which maintains the tonal balance of the sound as perceived by the human ear and protects the drivers from over excursion or overheating.. A recessed switch facilitates Sound Projects standard* or free external lowpass selection.

To match the desired cabinet dimensions and to obtain maximum efficiency, state-of-the-art computer aided modelling techniques and acoustic calculation programs are used to precisely indicate the manifold reinforcing ribs and port tuning.
*60Hz @ 24dB Butterworth

Acoustical specifications
Drivers: 1 x 18" High power, low weight, neodymium design. Double, impregnated spider and ventilated coil airgap for reduced power compression
Freq. Reponse: 30-60Hz/~90Hz switchable: Sub Mode/SPX Mode
Max. peak SPL @ 1m: 138dB (Peak level at 1M under half space conditions using pink noise with crest factor 4 (12dB))
Coverage angle: Omni-directional

Electrical specifications
Amplifier(s): CCD(TM) technology
Output: 2500W sine (SALC limited) Specified at 4 ohm
Filter subsonic: 30Hz, 2nd order
Low pass 4th order: 60Hz / ~90Hz (switchable) Full range option on request
Input impedance: 20 kOhms balanced, 10 kOhms unbalanced
Output impedance: Hard-wired to input
Main voltage: 230V (other on request)
Mains frequency: 50 / 60 Hz
Idle: < 50VA
Full load: < 3000VA. DALC limited Ref. to continuous pink noise signal (12 dB crest factor within the specified range)
Protection: S.A.L.C. (Single Audio Logic Control)

Additional descriptive data
Cabinet construction: Cross grain laminated multiplex
Finish: Nano-armor(TM) coating
Weight (in KG): 58 Wheels not included, optional wheel board available
With (in mm): 600
Height (in mm): 750
Depth (in mm): 620
Depth with wheels (in mm): 748
Rigging points: Optional uni rigging (3x M20 bolt)
Audio connectors: IEC XLR-3 in/out
Main connectors: Powercon in, powercon out
Max operating temp.: -10 to 40 C ambient