APPENDIX C

APPENDIX C: M'ELODIE SPECIFICATIONS AND DIMENSIONAL DRAWINGS

ACOUSTICAL

Note: The low-frequency power response of the system will increase according to the length of the array.

Operating frequency range

70 Hz - 18 kHz

 

 

 

Note: Recommended maximum operating frequency range. Response depends upon

 

loading conditions and room acoustics.

 

 

Free field frequency

76 Hz - 16 kHz ±4 dB

response

 

Note: Measured free field with 1/3-octave frequency resolution at 4 meters.

 

 

 

Phase response

1.5 kHz - 16 kHz ±30°

 

 

Maximum peak SPL

131 dB

 

 

 

Note: Free field, measured with music referred to 1 meter.

 

 

Dynamic range

>110 dB

 

 

Horizontal coverage

100°

 

 

Vertical coverage

Varies, depending on array length and configuration

 

 

Acoustical crossover

1100 Hz

 

 

 

Note: At this frequency, the transducers produce equal sound pressure levels.

 

 

TRANSDUCERS

 

 

 

Low/low-mid frequency

Two 8" cone drivers with neodymium magnets

 

Nominal impedance: 4 Ω

 

Voice coil size: 1.5"

 

Power handling capability: 600 W (AES); 900 W peak

 

 

 

Note: Power handling is measured under AES standard conditions: both transducers driven

 

continuously for two hours with band limited noise signal having a 6 dB peak-average ratio.

 

Peak power handling is measured with both transducers driven for 100 milliseconds with

 

pink noise signal having a 12 dB peak-average ratio.

 

 

 

Note: To eliminate interference at shorter wavelengths, the two 8-inch drivers work in

 

combination at lower frequencies (70 Hz - 320 Hz). At mid frequencies (320 Hz - 1100 Hz)

 

only one cone driver is active to maintain optimal polar and frequency response

 

characteristics.

 

 

High frequency

3" compression driver

 

Nominal impedance: 8 Ω

 

Voice coil size: 3"

 

Diaphragm size: 3"

 

Exit size: 1.2"

 

Power handling capability: 180 W (AES); 360 W peak

 

 

 

Note: Power handling is measured under AES standard conditions: transducer driven

 

continuously for two hours with band limited noise signal having a 6 dB peak-average ratio.

 

Peak power handling is measured with transducer driven for 100 milliseconds with

 

pink noise signal having a 12 dB peak-average ratio.

 

 

Note: The driver is coupled to a 100-degree-horizontal constant-directivity horn through a proprietary acoustical combining manifold (REM).

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