Ideal for tight fitting column and line array applications, the Alpha 2 features a 0.64” copper voice coil and 2.7 oz. ferrite magnet. With under spider venting and a flux source cap, this 8 ohm driver lets the heat out while containing the magnetic flux, which is critical for multi-unit designs packed tightly together. Rated at 30 watts program power, the Alpha 2 has a wide usable frequency range of 200 Hz – 20 kHz.

Specifications

Product type
Loudspeaker Chassis

Type
PA

Nominal Diameter
2 "

Nominal Diameter
51 mm

Voice Coil
0.64 "

Voice Coil
16 mm

Overall diameter
69.9 mm

Pitch Circle Diameter
59.94 mm

Cut- out Measurement
50.8 mm

Mounting holes
4

Diameter of fixing holes
3.8 mm

Depth
41.4 mm

Nominal Impedance
8 Ohm(s)

Nominal Load Capacity
30 W

Sensitivity (1 W / 1 m)
83.8 dB

Frequency response
200 - 20000 Hz

Voice Coil Material
copper

Magnet
Ferrite

Thiele & Small Parameter


Fs (Resonance Frequency)
185 Hz

Re (DC resistance)
6.4 Ohm(s)

Qms (mechanical quality)
3.06

Le (inductance of the voice coil)
0.13 mH

Qes (electrical quality)
0.94

Qts (overall quality)
0.72

Vas (equivalent volume)
0.18 l

Mms (moving mass)
0.88 g

BL (power factor)
2.64 T/m

Xmax (maximum displacement)
1.7 mm

Cms (elasticity of the suspension)
0.84 mm/N

Sd (membrane area)
12.37 cm²

Weight
0,17 kg

Downloads/links