Nexo Alpha System - Manual (Page 23)

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USER MANUAL
VERSION :1.01
DATE : 06/10/10
4.5. A LPHA B1-15 / B1-18
SYSTEM SPECS
ALPHA B1-15 ALPHA B1-18
Frequency Response [a] Wideband : 42 Hz – 180 Hz ± 3 dB
Xover : 80 Hz – 190 Hz ± 3 dB
40 Hz – 230 Hz ± 3 dB
Usable Range @-6dB [a] 39 Hz – 600 Hz 38 Hz – 600 Hz
Sensitivity 1W @ 1m [b]
106 dB SPL 107 dB SPL Nominal
Peak SPL @ 1m [b]
140 dB Peak 142 dB Peak
Nominal Impedance
6 ohms (5.2 mini) 6 ohms (4.7 mini)
Recommended Amplifiers 900 to 1200 Watts into 6 ohms 900 to 1400 Watts into 6 ohms
FEATURES
ALPHA B1-15 ALPHA B1-18
Components 1 x 15" (38 cm) 6 ohms
Folded Horn, Composite Curve 1 x 18" (46 cm) 6 ohms
Folded Horn, Composite Curve
Height x Width x Depth 600 x 689 x 754 mm
(23 5/8" x 27 1/8 " x 29 11/16") 800 x 689 x 754 mm
(31.49" x 27 1/8 " x 29 11/16")
Shape
22.5° Trapezoid
Weight : Net 51 kg (112 Lb)
with wheelboard : 58 kg (128 Lb) 69.9 kg (155 Lb)
with wheelboard : 79 kg (175 Lb)
Connectors
2x 4 poles Speakon (In / Out)
1+ & 1- (Sub S2)
2+ & 2- (Bass B1)
Construction Baltic Birch with Dark Grey carpeting, Structured Black coating painting finish also available.
Handles 2 Metal Bar Handles 4 Metal Bar Handles
Front Finish Acoustic Foam on hex perforated steel grid (77% transparent)
Flying points 4 Flying Tracks on front (7 positions on 2° steps)
Top to bottom Steel Backplate
4 Flying Tracks on Back (Hinge fixing)
Internal top to bottom Steel links
Painted version without Flying Tracks also
available
Crossbow Flying System cabinet Hardware:
Optional 4 Flying Tracks on Front
Internal top to bottom Steel links
Optional 2 Flying tracks on back (Hinge fixing)
Painted version without Flying Tracks also
available
Fixed Installation The X-Bow Flying Tracks can also receive standard Aircraft Flying Fittings.
As part of a policy of continual improvement, NEXO reserves the right to change specifications without notice.
[a] Response Curves and Data : Anechoic Far Field above 200 Hz, Half-space Anechoic below 200 Hz.
Usable Range Data : Frequency Response Capability with TD crossover slopes removed.
[b] Sensitivity & Peak SPL : will depend on spectral distribution. Measured with band limited Pink Noise.
Refers to the specified +/- 3 dB range. Data are for Speaker + Processor + recommended amplifier combinations.