CROWN 14M

​14M
The Crown® 14M shall be a mixer for commercial and industrial audio. It
has 4 inputs and 1 output channel.
Specifi cations
The 14M shall have the following specifi cations:
Frequency Response (at line out, 20 Hz to 20 kHz): +/– 1 dB. Signal to
Noise Ratio (master volume at minimum): 100 dB. THD: 0.05% typical
with 800 mV input, 1V output. Input Sensitivity (for full output at
maximum gain): Balanced mic inputs 3 mV, balanced line inputs 800 mV,
RCA connectors 400 mV. Input Impedance (nominal): Mic 400 ohms, line
100 kilohms, RCA 50 kilohms. Crosstalk (all controls at "10"): –70dB at
1kHz. Line Output Level (nominal): 1.2 V into 10 kilohms. Phantom Power:
15 VDC. AC Line Voltages Available: 100V 50/60 Hz, 120V 60 Hz, 220V
50/60 Hz, 230V 50/60 Hz, 240V 50/60 Hz. Operating Temperature/Humidity:
0 degrees C to 40 degrees C at 95% relative humidity (non-condensing).
Storage Temperature: –20 degrees C to 85 degrees C.
Front Panel Controls and Indicators
Front panel controls and indicators shall include the following:
Power Switch: Pushbutton on-off switch. The power switch shall not affect
the 24V DC auxiliary power input. Input Volume Controls: four microphone/
line, detented potentiometers with knobs. Output Volume Controls:
One detented potentiometer with knob. Tone Controls: Bass and Treble
non-detented recessed potentiometers on each input channel, Bass ±10
dB at 100 Hz, Treble ±10 dB at 10 kHz. Power Indicator: Blue LED indicates
power on. Input Signal Presence Indicator: Green LED, one for each input
channel, illuminates when input signal exceeds –24 dBu (line) or –70 dBu
(mic). Output Signal Presence Indicator: Green LED, one for each input
channel, illuminates when input signal exceeds 100 mV. Clip Indicator:
Red LED illuminates at threshold of audible distortion