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Grimm Audio UC1, Manual

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Grimm Audio UC1 Manual Download Page 25

Manual UC1 © Grimm Audio

25

to appear. Do not disconnect the UC1 before the update
is finished!

Press ‘Finish’ to finish the firmware upgrade procedure.
Click ‘Device 0’ in the left column, the ‘RevisionID’ should
now indicated the new firmware number.

Reset your UC1 to factory defaults

In case your UC1 shows odd behavior or when you like
to restore all menu items to their original settings, you
may restore the factory defaults by pressing the top
button when the progress bar is visible during power
up.

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Summary of Contents for UC1

Page 1: ...before operating the unit Mixing and mastering requires a point of reference A modern workflow demands for a tailored setup UC1 the swiss army knife of high quality monitoring Please read this manual before operating the unit ...

Page 2: ...mm Audio 2 Table of Contents 1 Introduction 3 2 Important Safety Instructions 5 3 Installing 7 4 Signal Connections 9 5 Operation 14 6 Menus 26 7 Specifications 32 8 Grimm Audio Limited Warranty 33 Table of Contents ...

Page 3: ... which output your main monitor is connected A secondary smaller loudspeaker system can be connected to a dedicated XLR output pair that runs in parallel to the headphone output on the front that offers a third monitor option Several monitor tools such as mono side and stereo swap are available Next to the monitor paths the UC1 offers a stereo analog and a stereo digital effect loop Through these ...

Page 4: ...icrophone Most people will use the UC1 as a USB interface It is however also possible to use the UC1 as a standalone converter and monitor controller without computer connection In this case the clock settings need to be changed in the UC1 menu When using the UC1 with the back USB connector the computer OS controls all clock options and the clock menu of the UC1 is greyed out Last but not least th...

Page 5: ...lesa no ofrece ninguna duda de interpretación y se entiende integramente Si este no fuese su caso rogamos contacte con Grimm Audio quien a petición se encargaría de enviarle la correspondiente traducción Please follow these precautions when using this product 1 Read these instructions 2 Keep these instructions 3 Heed all warnings 4 Follow all instructions 5 Dangerous voltage is inside this apparat...

Page 6: ...the wooden front panel 13 Install in accordance with the manufacturer s instructions 14 Do not install near any heat sources such as radiators heat registers stoves or other apparatus including amplifiers that produce heat Avoid exposure to direct sunlight 15 Use only attachments or accessories specified by the manufacturer 16 Use only with a cart stand bracket or table designed for use with profe...

Page 7: ...lling Unpacking and Inspection Your UC1 was carefully packed at the factory and the packaging it came in was designed to protect it from the trials and tribulations of shipping Keep the box and all packing materials so that in the unlikely event that you need to return the UC1 for servicing you can do so safely AC Power Hookup The UC1 has a full mains switch mode power supply that works with all c...

Page 8: ...nd then the UC1 Mounting the UC1 The UC1 does not produce strong RF fields nor is susceptible to them You can position it near other digital gear such as computers and disk recorders without worry In general it is a good idea to keep some distance between monitors LCD and CRT and audio cables because of risk of induced low level noise due to stray magnetic fields Grimm Audio products have a real w...

Page 9: ...Main USB Word clock I O 2nd speaker outputs Analog loop outputs Analog main outputs Analog loop inputs Digital outputs Control buttons Main dial Hi Z stereo jack input and gain 2nd stereo USB input 4 Signal Connections 08 0 002 xxx Mains power connection Phones output and gain ...

Page 10: ...re common levels in mastering studios The analog inputs on the back can optionally be switched to a clip level of 24 dBu so one can drive vintage outboard gear to the max without clipping the UC1 input that receives their signal Of course the 1 1 relation between output and input level of the UC1 is then lost The digital inputs and outputs are in AES3 format Leftmost is the LS1 control out cat5 co...

Page 11: ...s www asio4all org The UC1 can slave to word clock Digital in 1 and Digital in 2 This enables you to monitor and record digital sources that cannot be slaved to the UC1 word clock output such as CD players or digital guitar modellers Mark that S PDIF sources can be connected via an S PDIF to AES adapter cable that can be found in the Grimm Audio webshop The PLL that synchronizes the UC1 s internal...

Page 12: ...nd bit depths are supported and data is transferred bit transparent It may also offer you a more reliable connection To use the USB front i put please note these two important instructions 1 The UC1 sample rate cannot be controlled from the front USB As a result the UC1 can only play audio from the front USB input if the playback sample rate of the device is the same as the current UC1 sample rate...

Page 13: ... headphones on the market varies by as much as 30 dB Consumer ear buds are more or less standardised on a sensitivity of app 14 dBu for 100 dBA Some professional 600 Ohm headphones however may need as much as 15 dBu to reach 100 dBA The UC1 is targeted at the professional audio market and therefore offers enough gain to drive these professional headphones Please be aware that with sensitive headph...

Page 14: ...these USB channels to the master channels of your mixing desk The yellow blocks in figure 1 show the monitor path of the UC1 All 18 I O channels can be routed to this monitor path They can be auditioned in their original stereo form or in mono L R side L R or in swapped channel order form They then receive digital volume control mute both channels or L or R mute Hidden functions of the UC1 Press t...

Page 15: ...ute and polarity USB back In Special mono side swap Volume and mute Phones 2nd out Main out Out LS 1 2 Ana 1 2 Dig 1 2 when not Main Out Ana 3 4 Inputs USB back Out Foldback USB 1 8 Monitor USB 1 6 USB 7 8 10 channels 5 Operation Figure 1 UC1 internal routing ...

Page 16: ...headphones and 2nd speaker output are controlled plus the polarity of the phones Buttons and display Most functions of the UC1 are adjusted via the main dial and the two control buttons on its left side Additionally there are knobs for the phones output gain and the jack input gain The main dial can be turned and pushed In normal operation turning changes the gain of all monitor paths main 2nd and...

Page 17: ...reference playback level Note that the monitor gain can be set to display values up to 18 which means that there is 10 dB of positive gain available in the UC1 to audition very soft noises Note that any signal above 10 dBFS will in that case clip please use this extra gain with caution The volume control is in 0 5 dB steps above 17 dB and 1 dB below it If you have a Grimm Audio LS1 or PMC digitall...

Page 18: ...System When the back USB is not connected to a computer the clock source can be set manually Please refer to the menu chapter for instructions If the UC1 is set up to slave to an external source BNC Word Clock AES Digital 1 or 2 and it is not locked the clock status turns red and blinks The current function of the two small buttons is indicated by the text on the display next to them In the main s...

Page 19: ...creens inputs outputs inputs outputs the latter two offer a larger view with more detail like channel names The bottom button resets the peak hold The meters are fast responding sample peak meters intended for quick evaluation of incoming and outgoing levels The nominal level is at 14 dBFS which is 4 dBu on the analog XLR s The rightmost meters in the inputs outputs and outputs screens shows the c...

Page 20: ...gital 1 and Digital 2 are from the Digital in 1 XLR and Digital 3 and Digital 4 are from the Digital in 2 XLR All control faders in the driver are disabled since the UC1 driver transfers all inputs transparently On the next page the Output options are shown The top Master fader controls the monitor path gain in the UC1 When changing the monitor gain in the UC1 you will see this fader move and when...

Page 21: ... and Digital 2 are the two channels of the single XLR digital output on the back When monitoring these sources in the UC1 the USB channel numbers are indicated in its display The clock source can be set from the USB driver page The options are Internal Clock Word Clock Digital 1 2 and Digital 3 4 When the UC1 is in master mode Internal Clock sample rates from 44 1 to 192 kHz can be choosen In slav...

Page 22: ... saver Also minimize the amount of open windows and the use of other applications Plus it never hurts to have a lot of RAM installed Windows Windows 10 offers native support of the UC1 via USB Audio Class 2 However clock selection is not available via this default driver so we recommend to still install the Grimm Audio Windows driver that you can find on the UC1 page of the Grimm Audio website Mar...

Page 23: ...Manual UC1 Grimm Audio 23 Windows driver Device settings Windows driver Outputs settings Windows driver Buffer settings Windows driver Clock settings 5 Operation ...

Page 24: ...the previous page The version is indicated at RevisionID Compare that to the indicated ID of the update and you will know whether an update of your device is needed To check the current firmware version of your UC1 on Macintosh open the System Information app via Spotlight Look for USB under Hardware Here the UC1 is listed as Grimm Audio UC1 Select it and at Version you will find the version of yo...

Page 25: ...Device 0 in the left column the RevisionID should now indicated the new firmware number Reset your UC1 to factory defaults In case your UC1 shows odd behavior or when you like to restore all menu items to their original settings you may restore the factory defaults by pressing the top button when the progress bar is visible during power up 5 Operation ...

Page 26: ...is page gives access to monitor functions that are often used Monitor source You can select all inputs and outputs here by pressing the main dial briefly the arrow starts blinking and then turning the dial When you reach the last source the order wraps and the first source appears again To confirm a choice press the dial again the arrow stops blinking This item does the same as press hold the main...

Page 27: ...tereo pair or select a mono version of one channel If foldback is engaged this is indicated in the main screen Mute To mute the loudspeakers from the main screen you just press the main dial This turns off the selected speakers and turns on the phones at the same time it toggles between speakers and phones In some cases however it is helpful to listen to the audio on just one channel This mute men...

Page 28: ...rate the clock indication on the display will turn red and start flashing to indicate it lost lock The no mode is helpful when you are running a project with a specified sample rate and it should keep running at that rate even when by accident the source that you sync to changes sample rate Source offset This function will be added in a future update Ref level This function will be added in a futu...

Page 29: ...rsa In case you experience problems like that you can turn off midi and USB volume communication between the computer and the UC1 entirely by turning the preference off Please mark that in that case the LS1 PC remote software does not work anymore If you need to change internal settings of the LS1 you can temporarily enable this preference run the PC remote and turn the setting off when you re don...

Page 30: ... into your mic with headphones on and foldback engaged and then switching between normal and inverted phase Select the version that has most subjective bass P2 menu Soft key This function will be added in a future update Push key This function will be added in a future update Main out volume By default it is turned on Some people prefer to use an external analog volume control in stead of the inte...

Page 31: ... a few seconds after a control is used Main screen meters This enables or disables the presence of a simple 3 stage meter on the main screen S1 menu The S1 System Setup menu is used for programming the UC1 to be controlled by an Infrared remote via an IR sensor that can be connected to the 3 5mm jack on the back This function will be added in a future update S2 menu This menu shows the hardware an...

Page 32: ... Digital input and output specifications AES3 on XLR Impedance 110 Ohm Sensitivity 200mVpp 5Vpp Clock specifications Sample rates PCM 44 1 kHz 192 kHz Internal intrinsic clock jitter 0 6 ps RMS 10 Hz Clock frequency master mode 44 1 or 48 kHz 20 PPM 5 50 C BNC Word Clock 75 Ohm input and output impedance 5V General specifications Power supply voltage 90 240VAC 50 60Hz Power consumption 30 W Fuse F...

Page 33: ...spection by Grimm Audio or its authorized service representative In all cases disputes concerning this warranty shall be resolved as prescribed by law To obtain warranty service the purchaser must first call or write Grimm Audio at the address and telephone number printed below to obtain instructions where to send the unit for service All enquiries must be accompanied by a description of the probl...

Page 34: ...l indirect or other damages resulting from the breach of any express or implied warranty including among other things damage to property damage based on inconvenience or on loss of use of the product and to the extent permitted by law damages for personal injury 8 Grimm Audio Limited Warranty ...

Page 35: ...rimm Audio UC1 manual v1 0 1 21 06 21 Reproduction in whole or in part is prohibited Specifications subject to change without notice Grimm Audio Eindhoven The Netherlands General questions info grimmaudio com Support questions support grimmaudio com Tel 31 40 213 1562 ...

Page 36: ...Grimm Audio BV The Netherlands 31 40 213 1562 info grimmaudio com www grimmaudio com ...

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