Nexo Alpha System - Manual (Page 24)

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P 24
USER MANUAL
VERSION :1.01
DATE : 06/10/10
4.6. A LPHA M3 / M8
SYSTEM SPECS
ALPHA M3 ALPHA M8
Frequency Response [a]
190 Hz – 19 kHz ± 3 dB 190 Hz – 19 kHz ± 3 dB
Usable Range @-6dB [a]
150 Hz – 20 kHz 150 Hz – 20 kHz
Sensitivity 1W @ 1m [b] 110 dB SPL 108 dB SPL
Peak SPL @ 1m [b] 145 dB Peak 143 dB Peak
Dispersion [c] 35° x 35° 75° x 45° (HF Horn Rotatable)
Directivity : Q & DI [c]
Q = 32 – DI = 15 dB (Nominal f > 630 Hz) Q = 20 – DI = 13 dB (Nominal f > 630 Hz)
Nominal Impedance MF : 12 ohms (15.5 min)
HF : 12 ohms (8.0 min) MF : 12 ohms (15.5 min)
HF : 12 ohms (8.0 min)
Recommended Amplifiers MF : 650 to 900 Watts into 12 ohms
HF : 350 to 500 Watts into 12 ohms MF : 650 to 900 Watts into 12 ohms
HF : 350 to 500 Watts into 12 ohms
FEATURES ALPHA M3 ALPHA M8
Components
MF : 2 x 10" (24 cm) 8 ohms 3” Coil Drivers ; Dual Ring Phase Plugs
HF : 1 x 3’’ Neodynium Driver, Titanium diaphragm
Coaxial mounted waveguide
Height x Width x Depth
600 x 689 x 754 mm Carpet version
(23 5/8" x 27 1/8 " x 29 11/16")
Shape 22.5° Trapezoid
Weight : Net
57 kg (126 Lb)
with wheelboard: 64 kg (141 Lb)
2 x 8 poles Speakon (In / Out)
1+ & 1- (Sub S2)
2+ & 2- (Bass B1)
3+ & 3- (MF)
4+ & 4- (HF)
Connectors
1 x 4 poles Speakon (to B1 & S2)
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
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
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.
[c] Directivity Curves and Data : 1/3 octave smoothed frequency response, normalised to On-Axis response.
Data obtained by computer processing on off-axis response curves.