BMS MS4590-8 8 Ohm Mid Diaphragm & PHASE PLUG for the 4590, 4591 Mid Frequency

BMS MS4590-8 8 Ohm Mid Diaphragm & PHASE PLUG for the 4590, 4591 Mid Frequency

General Specifications:

• Throat diameter 2″, 50.8
• Nominal Impedance 8Ω
• Middle Range (AES) 150 W (rms) AES above 400 Hz
• Peak 1000 W peak above 500 Hz
• High Range (AES) 80 W
• Peak 450 W
• Sensitivity 1 W / 1 m 118 dB on 2242 Horn
• Frequency Range 300 – 22.000 Hz
• Recommended Crossover 300 Hz
• Middle Frequency Range 300 – 7000 Hz
• High Frequency Range 6000 – 22.000 Hz
• Middle / High Crossover 6300 Hz
• Voice Coil High Range 1.75″, 44.4 mm
• Voice Coil Mid Range 3.5″, 90 mm
• Magnet Material Ferrite
• Flux Density (Tesla) high 2.1
• Flux Density (Tesla) mid 1.95
• Efficiency 35 % (300 – 5000 Hz)
• Voice Coil Material Copper Clad Aluminium
• (2 layers in- and outside of the VC)
• Voice Coil Former Kapton TM
• Diaphragm Material Polyester

Key Features:

• Extended bandwidth (300 – 22.000 Hz)
• Point source sound reproduction
• Excellent phase coherence
• With two subsystems in one, each driver covers a smaller frequency range for increased power handling, high dynamics and extremely low distortion.
• Perfect time alignment without problems of multi-source interference.
• 8Ω
• 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 perfomance is compromised.
• A typical 2″ dome compression driver has a limited high frequency response.
• Above 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 7000 Hz with a smooth linear response.
• The large diaphragm excursion of max. +/- 0.8 mm results in high output and increases power handling up to 1300 W peak.
• The ultra light annular diaphragm for the high range offers exceptional transient response with very high efficiency between 6 and 22 kHz.

Why Choose Lean Business Audio?

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For more information please contact us at: +44(0)1473 744089
Or Email us at: sales@lean-business.co.uk