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M1.1 Two-channel Reference Power Amplifier

User Manual

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Summary of Contents for M1.1

Page 1: ...M1 1 Two channel Reference Power Amplifier User Manual...

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Page 3: ...n your musical journey we kindly request your attention to the information contained in this manual The M1 1 as you will discover in the following pages is a Swiss precision product designed for ultim...

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Page 5: ...ice 12 2 3 User manual 13 2 4 Mains supply 13 2 5 Transport and packaging 13 2 6 Cleaning 14 2 7 Maintenance and service 14 3 Installation 15 3 1 Unpacking 15 3 2 Positioning your unit 15 3 3 Connecti...

Page 6: ...4 3 1 3 SHORTCUTS 34 4 3 1 4 FACTORY SETTINGS 35 4 3 1 5 INSTALLED OPTIONS 36 4 3 1 6 NETWORK 36 4 4 Returning to factory defaults 37 5 Firmware update 38 5 1 Preparing the USB stick 38 5 2 Updating t...

Page 7: ...lifier and the pair of M1 1s For increased flexibility the M1 1 also provides two unique features global local feedback ratio and gain adjustments The amount of global feedback in the amplifying loop...

Page 8: ...1 1 1 Operation modes The M1 1 integrates two power amplification channels and provides the option to support a single or dual input boards In its default configuration the M1 1 is delivered with a s...

Page 9: ...ratio is preferred for speed and details in the high frequencies This rule is however not absolute as each speaker and cross over are different and we highly recommend to try out various settings to...

Page 10: ...orming a privileged path for vibrations evacuation The area where the air flows to cool down the amplifier is hermetically sealed from the rest of the M1 1 ensuring the electronic circuitry is protect...

Page 11: ...o supply power to the digital areas of the amplifier front panel display microcontroller and DSPs that controls and supervise the unit The third toroidal transformer inside the M1 1 is used as the Sta...

Page 12: ...CH Support Discs Please store the packaging material for future use Check your M1 1 power amplifier for any apparent damage In case of damage please contact your authorized dealer If your M1 1 power...

Page 13: ...dge of exceeding the maximum current a traditional mains phase is able to deliver before the circuit breaker trips With the addition of the power needed by the rest of the amplifier second and third t...

Page 14: ...t needs to be removed 2 7 Maintenance and service The M1 1 power amplifier contains no user serviceable parts Do not try to open modify or repair your M1 1 by yourself This will void any warranty Your...

Page 15: ...corners and insert a support disc under each foot The foot s elastomer ring should disappear in the support disc s groove when properly placed Carefully check all four feet perfectly fit in each supp...

Page 16: ...top covers when another CH component is to be stacked on top of your M1 1 Shaft covers left stacking cover right top cover 3 3 Connections This section provides information about how to connect your M...

Page 17: ...through for amplifier daisy chaining 10 Right channel RCA single ended analog input 11 Right channel BNC single ended analog input 12 Left channel RCA single ended analog input 13 Left channel BNC si...

Page 18: ...he CH Android App the M1 1 settings can be accessed and adjusted on the fly via a tablet 3 3 2 ANALOG IN board The ANALOG IN board features a user selectable analog input on three different connectors...

Page 19: ...e integrated into 3 4 1 Stereo mode A single M1 1 equipped with two analog input boards can be used as a stereo power amplifier This is the simplest configuration that already allows to enjoy the uniq...

Page 20: ...parallel each channel driving a different loudspeaker terminal from an identical signal Feedback and gain can be adjusted independently for each channel to best match the individual speaker sections T...

Page 21: ...r the different frequency bands The picture below shows how they should be connected in this case Active bi amplification mode Rev 3 0 M1 1 User Manual 21 L1 Preamplifier M1 Left Mono Power Amplifier...

Page 22: ...k ratio setting for each frequency band The picture below shows an example of such a daisy chain configuration namely passive bi amplified bridge mode Passive bi amplified bridge mode daisy chain mode...

Page 23: ...elements 1 Standby LED 2 Five user control push buttons 3 Display area high definition display The standby LED lights up when the unit is in standby It is normally turned off during operation The LED...

Page 24: ...status such as power or temperature whereas the Menu mode is used to configure the unit The M1 1 also includes Shortcuts to quickly access preselected Menu items Shortcuts are user programmable and mo...

Page 25: ...n or Bridge Displayed elements depend on the user settings In the example above the M1 1 is set as a bi amplifying power amplifier using the balanced XLR connector as input with its outputs muted in t...

Page 26: ...ut an OK R push will return to Normal Mode while an UP N push will enter the Menu mode The individual parameter for a given Shortcut is modified using UP N or DOWN O buttons The unit will revert to No...

Page 27: ...Current Parameter Value 5 Next Parameter Value if DOWN button O is pushed parameter down 6 Arrow referring to the DOWN button O The item below indicates the previous value down direction The last Shor...

Page 28: ...utton once to enter the Menu mode Navigation in the Menu mode is based on UP N and DOWN O buttons to select an item or to change a value The OK R button is used to validate and CANCEL Q to exit withou...

Page 29: ...column For each item in the Parameter column the Parameter Value item on the same line indicates the current value of the Parameter 3 This is the Parameter column The currently active Parameter is hi...

Page 30: ...modified The following section gives detailed information about the menu structure and the various Parameters Note that certain Parameters may or may not appear in the menu depending on installed opti...

Page 31: ...OLOR EDIT CUSTOM EDIT CUSTOM GREEN EDIT CUSTOM RED EDIT CUSTOM BLUE Menu mode M1 SETUP SHORTCUTS SHORTCUTS SHORTCUT 1 SHORTCUTS SHORTCUT 2 SHORTCUTS SHORTCUT 3 SHORTCUTS SHORTCUT 4 SHORTCUTS SHORTCUT...

Page 32: ...ACK 2 INPUT AMPLIFIER MODE GAIN GAIN 1 GAIN 2 INPUT BOARD Sets the amount of global feedback for output channels Sets the amount of global feedback for the channel 1 Sets the amount of global feedback...

Page 33: ...are DISPLAY MODE LED ON OFF BRIGHTNESS NORMAL BRIGHTNESS DIMMED COLOR GAMMA Selects what is displayed in normal mode Selects if the LED is turned on Sets the normal display brightness Sets the dimmed...

Page 34: ...s set to None SHORTCUT 2 to 6 are not displayed in this case SHORTCUT 2 Any Parameter of the AUDIO SETTINGS and DISPLAY SETTINGS menus or None If SHORTCUT 2 is not defined Parameter value for SHORTCUT...

Page 35: ...Selecting Reset returns the M1 1 to its factory settings Factory settings are detailed in the Specifications section SERIAL NUMBER Serial number Serial number indicates the serial number of the M1 1...

Page 36: ...d product type IP and MAC addresses Defines how the M1 1 interacts with other devices on the network Group units connected to a single network by room Low level network configuration Select if the uni...

Page 37: ...the M1 1 can t be woken up by the app Standby mode will consume less than 0 5W When Only if PoE is selected the M1can only be waken by the app if connected to a Power over Ethernet switch Standby mod...

Page 38: ...files are present at the root of your USB stick and that only one version of these files is present Any missing file will make the firmware update procedure fail while multiple versions of the same u...

Page 39: ...ower switch to OFF 3 Push and keep the standby mute button pushed and power up the unit back panel mains power switch to ON Keep the standby mute button pushed for a couple more seconds after you turn...

Page 40: ...n your M1 1 amplifier Check that the correct amplifier mode is engaged No sound 7 is displayed Your M1 1 is muted display area 3 7 must be off for the unit to output signal Unmute the unit using the t...

Page 41: ...gain in 0 5 dB steps Analog Audio outputs Speaker terminals 2 pairs of customized Argento Audio binding posts THD Noise Less than 0 01 1kHz signal BW 20Hz 20kHz 10WRMS under 8 all operating modes with...

Page 42: ...ing the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures adjust or relocate the receiving antenna increase the separation between...

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