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Specifications

MIC AMP SECTION MEASURED AT MIC AMP OUTPUT

GAIN RANGE (5dB steps)
Mic input

10-65dB

Hi-Z input

-10-45dB

THD+N 1kHz, 22Hz-22kHz BW
@ 20dB Gain +20dBu out

<0.00085%

@ 40dB Gain +20dBu out

<0.0010%

@ 60dB Gain +20dBu out

<0.0050%

INTERMODULATION DISTORTION
@ 40dB Gain +20dBu out
SMPTE/DIN 4:1 7kHz/50Hz

<0.0020

NOISE - REFERRED TO INPUT @60dB Gain 22Hz-22kHz BW
50Ω source

<-130dB

150Ω source

<-128dB

600Ω source

<-124dB

CMRR @60dB Gain, 3.5Vcm
100Hz

>60dB

1kHz

>75dB

10kHz

>65dB

FREQUENCY RESPONSE
Mic input @ 40dBm Gain -3dB

3.7Hz-140kHz

Hi-Z input @ 20dB Gain -3dB

1.2Hz-112kHz

IMPEDANCE
Mic input

8.1kΩ

Mic input, Ribbon mode

20kΩ

Hi-Z input (unbalanced)

2.5MΩ

Hi-Z input (balanced)

5MΩ

Balanced Output

300Ω

Unbalanced Output

150Ω

PEAK LED METER
Green threshold

-10dBu

Red threshold

+16dBu

MAXIMUM OUTPUT LEVEL
100k Ohm load, 0.1% THD

+28dBu

EQ/COMP SECTION

GAIN RANGE
Output Trim

-10 - +10dB

EQ: 3 Bands of 0-12dB Cut or Boost
Low Frequency Range

20Hz – 750Hz

Mid Frequency Range

500Hz – 4kHz

Mid Frequency Q

0.5 – 5

High Frequency Range

3kHz – 20kHz

Содержание m103

Страница 1: ...info gracedesign com www gracedesign com 2434 30th Street Boulder CO 80301 USA tel 303 443 7454 fax 303 444 4634 channel strip owner s manual Rev A all contents Grace Design Lunatec LLC ...

Страница 2: ...uals and technical documents Grace Design has been building audiophile quality products for the recording industry for over 15 years The technology in the m103 is the result of extensive listening field testing and careful refinement Your new m103 channel strip represents a combination of absolutely pristine audio performance robust mechanical construction and bombproof reliability at a reasonable...

Страница 3: ...ation temperature range 40 C to 70 C Maximum altitude 3000m 9843 ft Equipment suitable for continuous operation Weight preamplifier 2 05kg 4 5lbs Safety Marking Symbols CAUTION READ ACCOMPANYING DOCUMENTS This symbol located on the equipment and in this manual refers to important instructions Read this manual thoroughly before operating this equipment WARNING ELECTRICAL SHOCK HAZARD This symbol lo...

Страница 4: ...ade in the USA Front Panel Controls Features 1 1 4 inchTRS instrument HI Z input Designed to accommodate a wide variety of high impedance input sources making the m103 an excellent choice as a DI instrument input 2 PEAK INDICATOR The LED peak indicator which monitors the signal at the output of the mic preamplifier illuminates green at 10dBu and red at 16dB 12dB before clipping Located between the...

Страница 5: ...trols width sharpness of the mid EQ control with a range from 5 the widest with the most effect on adjacent frequencies to 5 the sharpest with the least effect on adjacent frequencies 14 HIGH GAIN This knob controls the amount of cut or boost applied to the selected high frequency from 12dB to 12dB 15 HIGH FREQ This knob selects the frequency of the high band EQ from 3kHz to 20kHz 16 HIGH frequenc...

Страница 6: ... will illuminate When in the down position the m103 is in standby mode To completely disconnect power from the m103 remove the AC power cord Rearpanel Connections 1 MICROPHONE INPUT The XLR microphone input connection wired with pin 2 positive pin 3 negative and pin 1 ground 48V phantom power when used is supplied on pins 2 and 3 2 MIC PRE OUT The balanced XLR direct output of the mic preamp secti...

Страница 7: ...warranty on all of our products but if you don t register your system it s hard for us to help you if and when help becomes necessary So please take a few minutes to complete the enclosed warranty registration card and mail it in or simply go to the warranty registration form on our web site Thank you Installing The m103 can be installed in a standard 19 equipment rack or sit on any flat surface W...

Страница 8: ... recording or gain makeup after the compressor section The trim control can add or subtract an additional 10dB of gain for a total maximum preamplifier gain of 75dB If the trim control is not needed for riding gain providing extra gain boost or makeup gain from the compressor then it should be left at zero 12 o clock USING RIBBON MIC MODE Activating the ribbon switch does three things 48V phantom ...

Страница 9: ... frequencies you wish to enhance without building up excessive gain in your signal path Note that this LED is before the output trim control OTHER EQ RECOMMENDATIONS If you don t have much experience using an equalizer there is a wealth of information on the Internet to be had It is very helpful to at least know the basics of equalizing the most common instruments and those basics will lead to a d...

Страница 10: ...CONTROL Normally the compressor s sidechain circuit uses the internal audio signal to trigger its response But in sidechain mode the sidechain circuit uses an external signal input from the LINK IN jack on the rearpanel to determine how the compressor responds Examples of using an external sidechain signal include ducking and de essing Ducking is an effect used to automatically reduce the level of...

Страница 11: ...st way to see how your microphone preamplifier is working at a glance if the red is flashing periodically you re probably not yet clipping the mic preamp If it is predominately flashing RED then you may be close to clipping and should reduce you mic preamp gain 2 Next is the the PEAK LED which is used to monitor any peaks within 6dB of internal clipping in the line section EQ COMP If this illumina...

Страница 12: ...RE OUT BALANCED OUTPUT TRIM MAIN OUT BALANCED MAIN OUT BALANCED MAIN OUT UNBALANCED EQ AMPLIFIER LOW MID HIGH OPTICAL LEVEL CONTROL EQ COMP EQ COMP EQ COMP ATTACK RELEASE RATIO THRESHOLD 14dBu 16dBu GR VU IN OUT IN OUT HI Z IN HI Z AUTO SELECT SIDE CHAIN LINK MIC PRE OUT UNBALANCED SC LINK 12 Block Diagram ...

Страница 13: ... 7 3 0 10 5 1 m 103 3k 20k 10 8k 0 12 12 HI Z 48V ribbon line mic 03 1 3 1 1 12 1 1 4 3 200 150 TRIM GAIN 10dB 65dB 10dB 10dB sec ms 15 SC in 1 2 3 12 PUSH PUSH microphone instrument recorder converter daw soundcard interface mixer pa system instrument amplifier input output input input additional m103 for stereo compression or external sidechain input for de essing ducking etc 75Hz 13 Wiring Diag...

Страница 14: ...dB CMRR 60dB Gain 3 5Vcm 100Hz 60dB 1kHz 75dB 10kHz 65dB FREQUENCY RESPONSE Mic input 40dBm Gain 3dB 3 7Hz 140kHz Hi Z input 20dB Gain 3dB 1 2Hz 112kHz IMPEDANCE Mic input 8 1kΩ Mic input Ribbon mode 20kΩ Hi Z input unbalanced 2 5MΩ Hi Z input balanced 5MΩ Balanced Output 300Ω Unbalanced Output 150Ω PEAK LED METER Green threshold 10dBu Red threshold 16dBu MAXIMUM OUTPUT LEVEL 100k Ohm load 0 1 THD...

Страница 15: ...B Gain 3 5Vcm 100Hz 75dB 1kHz 75dB 10kHz 75dB FREQUENCY RESPONSE 0dB Gain 3dB 0 016Hz 150kHz IMPEDANCE Line In 24kΩ Main Out balanced 350Ω Main Out unbalanced 150Ω Link In sidechain mode 100kΩ OTHER LEVEL METERS EQ Peak threshold 6 dB below interstage clipping Output Level VU Meter 0dB VU 4dBu output Gain Reduction Meter 0 10dB Gain Reduction MAXIMUM OUTPUT LEVEL 100k Ohm load 0 1 THD 28dBu WEIGHT...

Страница 16: ...r distributor for warranty product return details 6 In order for Grace Design to provide efficient and timely warranty service it is important that you mail the completed warranty registration card enclosed with all of our products within 10 days of the original date of purchase You may also register your product directly with Grace Design by telephone 303 443 7454 Monday Friday 9 00am to 5 00pm M...

Страница 17: ...17 Revision Page Change Date Initials A all 03 01 2010 edg Manual Revisions ...

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