beyma Full Range Frequency Transducer User Manual

beyma Full Range Frequency Transducer User Manual

KEY FEATURES

• 3” full-range compact ferrite loudspeaker
•  60 W program power
• FEA optimized magnetic circuit
• Shorting cup for extended response and very low distortion
• Optimized surround design for minimal resonance behaviour KEY FEATURES Acústica Beyma SL – P.I. Moncada II, C/ Pont Sec, 1C – 46113 Moncada, Valencia (Spain) – Tel. +34 96 130 13 75 – beyma@beyma.com
• Optimized linearity and dispersion pattern
•  Weatherproof paper cone and extreme resistance elastomer surround
• Pressed Steel Frame
•  Ideal for beam-steering application, portable array, columns and compact applications

TECHNICAL SPECIFICATIONS

Nominal diameter                               77 mm 3 in
Rated impedance                                8 Ω
Minimum impedance                         7 Ω
Power capacity 1                                30 WAES
Program power 2                               60 W
Sensitivity                                          90,5 dB 1W / 1m @ ZN
Frequency range                                135 – 20.000 Hz
Voice coil diameter                            20,3 mm 0,8 in
Bl factor                                            4,5 N/A
Moving mass                                    0,0023 kg
Voice coil length                              6 mm
Air gap height                                  5 mm

Notes:

1. The power capaticty is determined according to AES2-1984 (r2003) standard.
2. Program power is defined as power capacity + 3 dB.
3. T-S parameters are measured after an exercise period using a preconditioning power test. The measurements are carried out with a velocity-current laser transducer and will reflect the long term parameters (once the loudspeaker has been working for a short period of time).
4. The Xmax is calculated as (Lvc – Hag)/2 + (Hag/3,5), where Lvc is the voice coil length and Hag is the air gap height.
5. Product designed by  Acústica  Beyma S.L.

THIELE-SMALL PARAMETERS 3

Resonant frequency, fs                                    133 Hz
D.C. Voice coil resistance, Re                          5,8 Ω
Mechanical Quality Factor, Qms                     5,9
Electrical Quality Factor, Qes                          0,56
Total Quality Factor, Qts                                0,51
Equivalent Air Volume to Cms, Vas               1,0 l
Mechanical Compliance, Cms                        624 μm / N
Mechanical Resistance, Rms                           0,32 kg / s
Efficiency, η0                                                 0,4 %
Effective Surface Area, Sd                             0,003 m2
Maximum Displacement, Xmax 4                  2 mm
Displacement Volume, Vd                             5 cm3
Voice Coil Inductance, Le @ 1 kHz              0,16 mH

FULL RANGE FREQUENCY TRANSDUCER

Note: Frequency response measured with loudspeaker standing on infinite baffle in anechoic chamber, 1W @ 1m

Frequency response on axis Frequency response 45º off axis

MOUNTING INFORMATION

Overall diameter                      93,5 mm 3,7 in
Bolt circle diameter                 85 mm 3,4 in
Baffle cutout diameter:            75 mm 3,9 in
– Front mount                          52 mm 2 in
Depth                                      0,57 kg 1,2 lb
Net weight                              0,70 kg 1,5 lb
Shipping weight

DIMENSION DRAWING

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References

• Acústica Beyma - Fabricante Altavoces Profesionales desde 1969

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