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Manual UC1 © Grimm Audio

32

P3 menu

• Display brightness. This function controls the
brightness of the display from 1 to 10.

• Display auto dim. If auto dim is turned on the display
will turn off 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

This menu shows the hardware and firmware versions
of your UC1. It also shows if the UC1 is booted in LS1
mode or PMC mode.

6.

M

en

us

P3 menu.

S1 menu.

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Содержание UC1

Страница 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 ...

Страница 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 33 8 Grimm Audio Limited Warranty 34 Table of Contents ...

Страница 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 ...

Страница 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...

Страница 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...

Страница 6: ...he 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 profes...

Страница 7: ...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 choices...

Страница 8: ... bottom plate is used as a heat sink there is no active cooling Please allow for sufficient air movement around the unit 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...

Страница 9: ...nputs 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 ...

Страница 10: ... 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 conn...

Страница 11: ...evice For more information visit https 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...

Страница 12: ...t 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 In case the device playback sample rate does not match the UC1 sample rate the i put meters in the main and secondary displays are red ...

Страница 13: ...fore offers enough gain to drive these headphones Please be aware that with sensitive headphones the UC1 can produce sound pressure levels that can cause immediate and serious hearing damage Grimm Audio does not take any liability to hearing loss when using the UC1 Please act responsibly and protect yourself Figure 1 shows a typical application example of the UC1 The DAW runs on the Computer on th...

Страница 14: ...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 the main dial briefly to mute the main speakers and turn on the headphone output Press briefly again t...

Страница 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 2 UC1 internal routing ...

Страница 16: ...es and 2nd speaker output are controlled plus the polarity of the phones In case the UC1 is used without computer connected to the back USB some physical in and outputs have a fixed routing Analog in 1 2 is routed to digital out 1 2 and digital in 3 4 is routed to analog out 3 4 The main out and monitor path selections remain functional for all inputs Buttons and display Most functions of the UC1 ...

Страница 17: ... of softer playback This is common practice in mastering The 0 level is usually aligned with an SPL of 79dBC when playing a SMPTE reference noise signal on a single channel The Grimm LS1 is factory aligned to that you may adust the gain of your 3rd party amplifier to achieve the same result or to select another acoustic SPL that suits you as reference playback level In case you feel the need to ad...

Страница 18: ...ust this control until speakers and phones sound equally loud to you From then on just use the main dial for changing your monitor gain and leave the phones control at its calibrated level In the bottom left corner of the display the clock status of the UC1 is indicated When the UC1 is connected to a computer via the USB connector on the back these settings are controlled from the computer Operati...

Страница 19: ...resence of signal In some cases the ana 1 2 input meters show signal when no input signal is present This is caused by DC offset drift from the UC1 AD converters a common problem in most AD converter chips Grimm Audio has disabled the build in high pass filters of the chip since they affect the sound quality Please remove this offset in your DAW after recording preferably with a tool that subtract...

Страница 20: ...utput In the metering screens the current monitor gain setting and destination are indicated at the top in the middle The monitor source and clock status are indicated just like in the main screen USB settings in the computer OS The UC1 can be used with Macintosh Windows and Linux operating systems It also works seemlessly with iOS and Android devices though these will usually only be used with th...

Страница 21: ...in the UC1 preferences menu the fader can still be moved but it does not affect the UC1 monitor gain anymore Note that when the UC1 display indicates 0 the driver will show 8 dB This is intentional The 0 level of the UC1 display is a reference level linked to an acoustic SPL The 0 level in the OS driver is related to the amount of digital gain of the monitor path volume control This is how the OS ...

Страница 22: ...r DAW is setup for it the sample rate can be changed from within the application so the UC1 will follow the sample rate of your project automatically Macintosh performance optimalization When using the UC1 with Cubase Nuendo you may experience a sudden volume increase when the app is started This is caused by a hidden setting in Cubase Nuendo To change this behavior please open the Studio Setup un...

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

Страница 24: ...we will release an update to the firmware of your UC1 To keep informed about firmware updates please subscribe to our newsletter at the footer of our website pages In the downloads section of the UC1 web page at grimmaudio com the latest firmware can be downloaded Here you will also find the Windows driver that is needed for this update We are sorry that at this moment updating is only possible wi...

Страница 25: ...Windows Grimm Audio Control Panel and click the Firmware Upgrade tab Select the downloaded bin file as Firmware Image File Click Start Firmware Upgrade and wait for the Firmware download succeeded prompt 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 ne...

Страница 26: ... to browse the options and press again to confirm your choice F1 menu Whenever you enter the menu the F1 page will be available first This 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 fir...

Страница 27: ...selected source In this menu you choose which signal you like to mix in for foldback You may choose to mix them as a stereo pair or select a mono version of one channel If foldback is engaged this is indicated in the main screen When in the main screen as a quick access feature a long press of the bottom button turns off and on foldback in case a foldback source was selected in the menu Mute To mu...

Страница 28: ...ill maintain the clock rate that it found when first slaving to the selected clock source If the source then switches sample 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 cha...

Страница 29: ...o from the monitored sources Its USB channels should be used as main mastering channels Their playback will be interrupted when another monitor source is choosen Max in Analog 1 2 This preference let s you choose between 18 dBu or 24 dBu as maximum modulation 0 dBFS input voltage The default is 18 dBu so that an analog loop with 0 dB gain shows the same return level as send level all UC1 outputs h...

Страница 30: ...tive at a time In split mode the 2nd speaker and phones paths are decoupled from the monitor system and become an independent path for USB 9 10 without any digital volume control The 2nd out and phones channels carry the same signal and are always on The rightmost channels in the meter display now show the USB 9 10 levels in stead of the monitor output levels Split mode can be used in cases where ...

Страница 31: ...microphone headphones combination so that an increase in pressure in front of your microphone will result in an increase in pressure inside your headphones This option can improve voice foldback monitoring sound quality when using the UC1 with a microphone and mic preamplifier Since headphones always show some leakage from environmental sounds selecting the right polarity will improve the coherenc...

Страница 32: ...auto dim is turned on the display will turn off 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 This menu shows the hardware and firmware versions of your UC1 It also shows if the UC1 is booted in LS1 mode or PMC mode 6 Menus P3 menu S1 menu ...

Страница 33: ...al 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 F630 mA...

Страница 34: ...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...

Страница 35: ...age based on inconvenience or on loss of use of the product and to the extent permitted by law damages for personal injury 2021 Grimm Audio BV All rights reserved Grimm Audio UC1 manual v1 1 3v2 6 12 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 ...

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

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