Produkt PDF Beyma 15P1200Nd

15P1200Nd

P1200/Nd Series

KEY FEATURES

• Real 1200 W AES power handling

• Sensitivity: 97 dB @ 2.83V

• 4” duo technology voice coil

• Forced air convection circuit for low power compression

• Extended controlled displacement: Xmax ± 9.5 mm.

• Massive mechanical displacement capability: 52 mm p-p

GENERAL DESCRIPTION

This model is the result of an extensive and intense research of every single constituent part of an electro-dynamic loudspeaker, rethinking the basics and taking care of every detail, to withstand the extreme power conditions it has been designed to work in.

All this investigation is reflected in the new and innovative technologies developed by Beyma and applied in this new transducer.

DUO TECHNOLOGY 4” VOICE COIL

• Laminated former combining two different advanced technology materials to enhance the voice coil life.

• Voice coil winding coiled over the two faces of the former.

• Double insulation paper (inner and outer) for optimum force transmission.

• Superficial treatment of the voice coil winding to provide further protection to the voice coil wire.

MOVING ASSEMBLY

• High stiffness weather resistant paper cone.

• Beyma Double Conex Spider technology (D.C.S.): the conex is a fireproof material that insures the preservation of the spider mechanical properties under extreme power conditions.

• Beyma Mechanical Mirror Suspension System

(M.M.S.S.): the diaphragm surround and the double spider have been carefully designed with the assistance of

Finite Element calculations in order to match coherently, enabling long and controlled cone displacements.

HEAT DISSIPATION

• Low power compression due to the use of a forced convection mechanism.

• This design has been optimized with the extensive use of miniature high temperature probes and real-time temperature acquisition systems, together with a thermographic camera to obtain real images of the heat distribution in the voice coil and forced convection effects.

UNDER-POLE NEODYMIUM MAGNET TOPOLOGY

• F.E.A. optimized under-pole magnet topology. This geometry maximizes the flux density in the air-gap and completely eliminate the leakage magnetic field, avoiding any possible magnetic interference with other equipment.

• High temperature neodymium magnets.

FREQUENCY RESPONSE AND DISTORTION CURVES FREE AIR IMPEDANCE CURVE

Note: on axis frequency response measured with loudspeaker standing on infinite baffle in anechoic chamber, 1w @ 1m.

TECHNICAL SPECIFICATIONS

Nominal diameter

Rated impedance

Minimum impedance

Power capacity*

Program power

Sensitivity

Frequency range

Recom. enclosure vol.

Voice coil diameter

Magnetic assembly weight

BL factor

Moving mass

Voice coil length

Air gap height

X damage (peak to peak)

380 mm. 15 in.

8 ohms

6.1 ohms

1200 w AES

2400 w

97 dB 2.83v @ 1m @ 2 p

30 - 2000 Hz

40 / 150 l 1.4 / 5.3 ft.

3

100 mm. 4 in.

6 kg. 13.2 lb.

26.3 N / A

0.150 kg.

25 mm

14 mm

52 mm

MOUNTING INFORMATION

Overall diameter

Bolt circle diameter

Baffle cutout diameter:

- Front mount

- Rear mount

Depth

Volume displaced by driver

Net weight

Shipping weight

388 mm. 15.28 in.

370 mm. 14.57 in.

352 mm. 13.86 in.

355 mm. 13.98 in.

155 mm. 6.10 in.

7 l 0.25 ft.

3

7.7 kg. 16.94 lb.

8.7 kg. 19.14 lb.

THIELE-SMALL PARAMETERS**

Resonant frequency, fs

D.C. Voice coil resistance, Re

Mechanical Quality Factor, Qms

Electrical Quality Factor, Qes

Total Quality Factor, Qts

Equivalent Air Volume to Cms, Vas

Mechanical Compliance, Cms

Mechanical Resistance, Rms

Efficiency, hhhhho (%)

Effective Surface Area, Sd (m 2 )

Maximum Displacement, Xmax***

Displacement Volume, Vd

Voice Coil Inductance, Le @ 1 kHz

45 Hz

5.3 ohms.

7.73

0.33

0.31

84 l

81 mmmmmm / N

5.7 kg / s

2.3

0.0855 m 2

9.5 mm

815 cm 3

2.3 mH

15P1200Nd

P1200/Nd Series

DIMENSION DRAWINGS

POWER COMPRESSION LOSSES

6,0

5,0

4,0

3,0

2,0

1,0

0,0

100 200 300 400 500 600 700 800 900 1000 1100 1200

Power (W)

Note: These losses are calculated from a five minutes AES power test applying band limited pink noise (50-500 Hz). The loudspeaker is free-air standing.

MATERIALS

• Basket: Cast aluminium

• Cone: Paper

• Surround: Treated cloth

• Voice coil: Copper wire

• Magnet: Neodymium

Notes:

*The power capacity is determined according to AES2-1984 (r2003) standard.

Program power is defined as the transducer’s ability to handle normal music program material.

**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).

***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.

Polígono Industrial Moncada II · C/. Pont Sec, 1c · 46113 MONCADA - Valencia (Spain)

· Tel. ( 34 ) 96 130 13 75 · Fax ( 34 ) 96 130 15 07 · http://www.beyma.com · E-mail: [email protected] ·