Beyma 605 ND - Paper

-10 %

RRP 165,00 €

incl. 19% VAT plus shipping
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-10 %

This 6.5" mid frequency loudspeaker has been designed on the basis of the 6MI90 with the purpose of improving the efficiency. The new one includes a high-energy neodymium magnet that increases it and reduces the loudspeaker net weight. Thus, the 605Nd is 3 dB louder and 30% lighter than the ferrite version. By the other hand, this loudspeaker is mounted with an special cast aluminium basket that reduces mechanical vibrations and increases thermal dissipation. All these improvements combined with the 6MI90 excellences (low harmonic distortion and extended frequency response), result in a superb transducer for sound reinforcement applications.

Key features:
  • Exceptional power handling: 125 w AES
  • High sensitivity: 100 dB
  • 1.5" (38.5 mm) edgewound aluminium ribbon voice coil
  • Aluminium basket
  • High efficiency: 3.3 %
  • Excellent dispersion control due to the use of a phase plug
  • Low harmonic distortion
  • Linear frequency response

Short data

Usage as Midrange
Power Handling 125 Watt
Impedance 8 Ohm
Frequency from 150 Hz
Max. Frequency 8 kHz
Sound pressure 100 dB


Overall dimensions 174 mm
Baffle cutout 146 mm
Depth (Total) 70 mm
Frame Material Aluminium diecast
Membrane Type Cone
Membrane Surround Textile
Membrane Material Paper
Voice coil Ø 38.5 mm
Voice coil height 7 mm
Voice coil material Aluminium
Magnet Ø 115 mm
Magnet-weight 1200 g


Resonance fs fs: 150 Hz
Mechanical Q Qms: 9.68
Electrical Q Qes: 0.32
Total Q Qts: 0.31
Equivalent Air-Volumen Vas: 3 Liter
DC-Resistance Re: 6 Ohm
Coil Inductance Le: 0.5 mH
Mech. Compliance Cms: 0.1 mm/N
Moving Mass Mms: 10 g
mech. Resistance Rms: 1.1 kg/s-¹
Max. Excursion +/- Xmax: 1 mm
BL Product Bl: 13.15 N/A
Membrane Area Sd: 140 cm²
Sound pressure dB: 100 SPL
Efficiency Nref: 3.3 %

Frequency, Harmonic Distortion


Technical Dimensions

PDF-Product information

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