CH M10 - Input-Specific Settings

M10 User Manual 20
3.5.2 Input-specic settings menu
Input selection
Each input board sports three connectors: A balanced XLR, a single-ended RCA and a single-ended BNC.
The XLR provides the shortest signal path, and is therefore the recommended choice if the preamplier
features a balanced XLR output. Single-ended inputs both pass through an additional conditioning circuit.
Impedance
Sets individual impedance termination per input.
High impedance (47kΩ for single-ended inputs, 94kΩ for balanced inputs) means this amplier’s input won’t
draw any current from the upstream device’s output (usually a preamplier), delivering the best possible
resolution and authority.
600Ω (300Ω for single-ended inputs) means a termination resistor is activated, increasing the noise immunity
of the interconnect while drawing a bit of current from the upstream device’s output. This eliminates induced
noise at the cost of dynamic range and precision. It should only be used if noise oor is an audible problem.
Low-pass lter
The default bandwidth of the M10 is DC to 500 kHz. As some delta-sigma DACs with little output ltering
can generate high frequency content that may damage loudspeaker tweeters when amplied by a wide
bandwidth system, we provide the facility to add a low pass lter with a cutoff frequency of 120 kHz in the
amplier’s signal path.
Absolute phase polarity
Allows you to reverse the absolute phase of the audio signal.
3.5.3 Display settings menu
Display mode
Allows the user to choose what information is displayed (status, power VU-meter or temperature gauge) and
whether the display remains on or switches off after a short time.
Front LED
Allows the user to turn the red power LED off when the units are active rather than in standby.
Display brightness and gamma
Allows you to set the brightness of the display in operating mode (10 – 100%), and to ne tune the high
brightness gamma curves to perfectly match the brightness and color or other displays.
Display brightness (dimmed)
Allows you to set the brightness of the display when dimmed between operations (10 – 30%), and to ne tune
the low brightness gamma curves to perfectly match the brightness and color or other displays.
Display color
Lets the user select display color from a choice of seven standard shades or a user dened RGB color.