User's Manual

45 N-12 TECHNICAL SPECIFICATIONS Page 23/25
6 45°N-12 TECHNICAL SPECIFICATIONS
6.1 System specifications
SYSTEM SPECIFICATIONS
45N12 with TDcontroller
Frequency Response [a] 55 Hz - 19 kHz ±3dB
Usable Range @-6dB [a] 50 Hz – 20 kHz
Sensitivity 1W @ 1m [b] 106 dB SPL Nominal - 104 dB SPL Wideband
Nominal Peak SPL @ 1m [b] 1 unit: 137 to 140dB Peak / 2 units: 140 to 143dB Peak
HF Dispersion [c] 30° Horizontal - Scalable 30° steps when arrayed.
22.5° Diagonal (Coupling Plane) - Scalable 22.5° steps when arrayed.
60° Vertical (Asymmetrical -45° / +15°).
Crossover Frequencies LF-HF: 1kHz Active or Passive (internally configurable).
Nominal Impedance
Active LF 8Ω, HF 16Ω. Passive 8Ω.
Recommended Amplifiers
Active LF 1000 to 1500 W 8Ω / HF 250 to 500 W 16Ω. Passive 1200 to 2000 W 8Ω.
SYSTEM OPERATION
Electronic Controller The NEXO TDcontroller’s presets are precisely matched to the 45N Series cabinets and include
sophisticated protection. Using 45°N-12 cabinets without a properly connected NEXO TDcontroller
will result in poor sound quality and can damage components.
Dispersion configuration Internally mounted magnets allow 45°N-12 inter-cabinet locking for coverage / SPL scalability.
Subbass LS600 extends system low frequency response down to 38 Hz.
Speaker Cables Active: 1-/1+:LF; 2-/2+: HF.
Passive: 1-/1+: Not Connected; 2-/2+:LF + HF.
PRODUCT FEATURES
Components : LF [VLF]
HF
LF 1 x 12" (30 cm) high excursion Neodymium 8Ω driver.
HF 1 x 3" voice coil, 1.4" throat Neodymium 16Ω compression driver on a 22.5° hyperboloid
reflective wavesource.
Height x Width x Depth 392 x 492 x 576 mm (15.43" x 19.37" x 22.67").
Weight : Net 24 kg (53 lbs).
Connectors 2 x NL4MP SPEAKON 4 pole
Construction Main structure: Baltic Birch Ply finished with structured black coating.
Rear lower and bottom section: Steel with dark grey coating.
Front vents and rear upper section: Injected polyurethane front vents, black coating.
Fittings: 4 handles (2 side metal recessed, 2 front and rear moulded).
Front finish Perforated dark grey metal grille.
Locking Elements Integrated magnets for mechanical locking.
As part of a policy of continual improvement, NEXO reserves the right to change specifications without notice.
[a] Response curves & data : Half-Space Far Field for the 45°N-12 + NXTD Controller.
[b] Sensitivity & Peak SPL data : these will depend on spectral distribution and crest factor of program material. Measured with band limited Pink Noise.
Nominal refers to Voice Decade (300Hz - 3kHz), Wideband to the specified ±3dB range. Data are for speaker + processor + recommended
amplifier combinations. Peak SPL is at clipping of recommended amplifier.
[c] Directivity curves & data : obtained by computer treatment on off axis response curves.
6.2 Dimensions