Microphone-capsules:
Frequency (+/- 2dB) : 20 Hz - 18 kHz
Sensitivity : 6 mV @ 94 dBspl (0 dBspl ~ 20 mikro Pascal - 'level of hearing')
Noise : less than 28 dBspl (A-weighted)
Maximum sound-pressure: more than 140 dBspl
Distortion: (THD + N) : <0,3 % (130 dBspl/1 kHz)
Elektronics:
Frequency (+/- 0.5 dB) : 20 - 22 kHz
Voltage amplification : 0 dB
Output-impedance (unbalanced) : 300 Ohm
Output-impedance (balanced) : 600 Ohm
Max output: greater than 2,5 V (unbalanced) equivalent with a sound-pressure of more than 145 dBspl
Distortion (THD + N) : less than 0,01 % ( 100 Hz - 1 kHz - 10 kHz - 1 V output)
CMMR (balanced output): > 40 dB
Supply-voltage : 230 V AC/50 Hz ( -35 V / + 25 V) (with the EU-PSU )
Supply voltage for the floorbox : 12-20 V AC or 15-24 DC - less than 100 mA (polarity does not matter)
Phantom-supply : only with balanced connection
All
inputs and outputs are protected against EMC (noise in - and out) - shorts
- and a lot have been done to protect against electro-static discharge (ESD)
.
With a correct installation the system co-exist with nearly all midi-systems.
System:
In a typical accordion the sound-pressure
is 110 - 130 dBspl, with a system-noise less than 30 dBspl one can expect
a S/N of more than 80 dB.
(remark: A sound-pressure of 30 dBspl is very uncommon in live-situations but typical for a recording-studio)
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