BMS4590PH Driver 2″ 4590 8 of 16 ohm

Beschrijving

2″ High Power Coaxial Compression Driver ? Patented Design

In a conventional Full Range compression driver the phase plug must
be located extremely close to the diaphragm, excursion of the diaphragm
is limited and middle frequency performance is compromised.

A typical 2″ dome compression driver has a limited high frequency
response. Over 8 kHz the dome diaphragm breaks up causing resonance and
harsh, metallic sound.

The BMS annular midrange diaphragm covers the frequency range
between 400 and 7.000 Hz with a smooth, linear response. The large
diaphragm excursion of max. ?0,8 mm results in high output and
increased power handling up to 1.300 W peak.

The ultra light annular diaphragm for the high range offers
exceptional transient response with very high efficiency from 6 kHz to
21 kHz.

Extended bandwidth (400-21.000 Hz)

High efficiency

With two subsystems in one, each driver covers a smaller frequency
range for increased power handling, high dynamic and extremely low
distortion

Excellent phase coherence

Point source sound reproduction

Perfect time alignment without the problems of multi-source interference

Mounting information

Overal diameter 180 mm (+3 mm)

Depth 129 mm

Net weight 9 kg

Four M6 holes, 90? on 101,6 mm.

Specifications subject to change

without notice.

Technical specifications H 4590

Throat diameter 50 mm (2″)

Nominal impedance 16 Ohm

Power capacity 150 W RMS above 400 Hz

1000 W peak above 500 Hz

1300 W peak above 600 Hz

Frequency range 400-21.000 Hz

Sensitivity (1W/1m) 114 dB

Recommended crossover 400 Hz

Middle frequency range 400-7.000 Hz

High frequency range 6.000-21.000 Hz

Middle/High crossover 6.500 Hz

Distortion 2nd harmonic 0,5 % (400-1.000 Hz) 1 % above 1.000 Hz)

Distortion 3rd harmonic 0,1 %

Voice coil Mid-range 90 mm (3,5″)

Voice coil High-range 44.5 mm (1,75″)

Flux density Mid-range 2 T

Flux density High-range 2,15 T

Efficiency 30 % (400-5.000 Hz)

Voice coil material Aluminium (2 layers inside and outside of the VC)

Voice coil former Kapton

Diaphragm material Polyester

USA Patent No. 5.862.928

Europe Patent No. 0793216