Meyer Sound JM-1P Manuale Utente

39

Operating Frequency 
Range

53 Hz – 18 kHz
Note: Recommended maximum operating frequency range. Response depends on load-
ing conditions and room acoustics.

Frequency Response

56 Hz – 16.5 kHz ±4 dB
Note: Measured free field with 1/3 octave frequency resolution at 4 meters.

Phase Response

580 Hz to 16 kHz ±45°

Maximum Peak SPL

138 dB
Note: Measured with music referred to 1 meter.

Dynamic Range

>110 dB

Coverage

20° x 60°

Crossover

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

Low Frequency

One 15” cone driver with neodymium magnet
Nominal impedance: 2 

Ω

Voice coil size: 4”
Power-handling capability: 1200 W (AES)
Note: Power handling measured using AES standards: transducer driven continuously 
for two hours with a band limited noise signal having a 6 dB peak-average ratio.

High Frequency

One 4” compression driver
Nominal impedance: 8 

Ω

Voice coil size: 4”
Diaphragm size: 4”
Exit size: 1.5”
Power-handling capability: 250 W (AES)
Note: Power handling measured using AES standards: transducer driven continuously 
for two hours with a band limited noise signal having a 6 dB peak-average ratio.

Type

Differential, electronically balanced

Maximum Common 
Mode Range

±15 V DC, clamped to earth for voltage transient protection

Connectors

Female XLR input with male XLR loop output or VEAM all-in-one (integrates AC power, 
audio, and network)

Input Impedance

10 k

Ω differential between pins 2 and 3

Wiring

Pin 1: Chassis/earth through 220 k

Ω, 1000 pF, 15 V clamp network to provide virtual 

ground lift at audio frequencies
Pin 2: Signal +
Pin 3: Signal –
Case: Earth ground and chassis

DC Blocking

Differential DC blocking up to maximum common mode voltage

CMRR

>50 dB, typically 80 dB (50 Hz – 500 Hz)

RF Filter

Common mode: 425 kHz

 

Differential mode: 142 kHz

TIM Filter

<80 kHz, integral to signal processing