Grace Design m103 manual

info@grac edesign.com / www .gracedesign.c om 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/ Luna tec LL C[...]

2 W elcome and thanks for pur chasing the Grace Design m103 channel strip . We build all of our products to be completely reliable and easy to use , so you can concentr ate on making great rec ordings, not struggling with complica ted equipment or dicult product manuals. While you will nd the m103 is completely straightf or ward t o use, we d[...]

3 Important Safety Information GENERAL • Indoor use only • Ordinary Protection: This equipment should not be exposed to dripping or splashing. • Av oid placing objects lled with liquids, such as vases or glasses, on this equipment. • Class I Equipment (grounded type) • Electrical rating: 100-240V~ 50-60Hz 14W • Main[...]

comp eq comp eq 0 12 12 20 7 50 100 .5k 4k 1. 8k 0 12 15 0 lo gain lo freq hi gain hi freq mid Q mid fre q mid gai n .5 5 2. 5 EQ peak thr esho ld att ack rel ease rat io link in VU COMP GR 1 2 3 4 5 6 7 8 9 10 20 7 3 0 10 5 1 m 103 3k 20k 10.8k 0 12 12 HI-Z 48V ribbon line mic .0 3 1 3 1: 1 12 :1 1: 4 3 200 15 0 75Hz T R I M GAIN 10dB 65dB 10dB 10[...]

5 octave lter employs a tr ansitional Thompson - Butter worth response for the best combination of passband atness and time domain response. LED indica tor illuminates amber when active. 7. MIC / LINE swit ch - This switch selects which input feeds the EQ/C OMP section - either the microphone preamplier input (MIC IN from the rear panel XL[...]

PUSH PUSH 1 3 4 5 6 8 9 10 2 7 6 in a more aggr essive gain reduction while lower r atios will result in more gentle gain r eduction. 24. COMP IN SWIT CH - This switch activates the C OMPRESSOR circuit. The LED above the switch illumina tes when the COMP is active , turns o when deactivated. This switch controls a gold con tact relay . 25. LINK [...]

7 and COMP sections. The connector is wired TIP positive, SLEEVE ground . 8. STEREO LINK/ SIDECHAIN - T his switch selects the mode of the LINK IN jack between stereo link mode and sidechain. 9. LINK IN - T his 1/4” input accepts either the connection from another m103 for linking compressor con trols for stereo use , or an external side chain si[...]

8 input (select mic on the frontpanel mic/line switch). This circuit is totally transparen t and is per fectly suited to this application. All outputs are active all the time, so y ou have the possibility of up to 5 liv e outputs if your source is MIC IN, or 3 liv e outputs if your sourc e is LINE IN. Operating Microphone Preamplifier SETTING THE M[...]

9 While there is no wr ong way to set an equalizer , there are some general guidelines that may help y ou get the results you are looking for a little faster . CONTROLLING BASS FREQUENCIES In addition to the low frequency controls of the m103, we ha ve included the 75Hz HPF on the mic preamp section. If you need to reduce rumble , wind noise or exc[...]

10 Begin with the knob fully counterclockwise and the compressor switched ON, then slo wly begin turning clockwise until you begin to c ompress the signal. Y ou will hear the signal compress, and y ou will begin to see the GR meter light up . T he lower the thr eshold setting , the more the incoming signal will be att enuated and the more lights wi[...]

11 LINK CONTROL This featur e is used to link two m103 compr essors together for ster eo bus compression. In this application, only the compressors ar e linked and not the eq’ s. T o use this feature , simply run a standard 1/4” TRS cable bet ween two m103s connected to the link/sidechaIn jack. Both units’ LINK switches must be on and both re[...]

LINE-M IC S W IT CH LINE IN LI NE AMP LIF IE R MIC I N MI CROHON E AMP LIFIER PH ANTOM POW ER +48 V RI BB ON 75H z HP F MIC P RE OUT BA L ANCED OUTPU T TRIM MAI N OUT BA LA NC E D M AI N OU T BA LANCED MAI N OUT UN BA LA NC ED EQ AM PL IFIE R LOW MID HI GH OPTICAL LE VE L CONT ROL EQ>COM P EQ>COM P EQ>COM P A TT AC K REL EAS E RATIO T HR E[...]

comp eq comp eq 0 1 2 1 2 20 7 5 0 100 .5 k 4 k 1. 8 k 0 1 2 15 0 lo gai n l o f req hi gai n hi fre q mid Q mid fr eq mid ga in .5 5 2. 5 EQ peak thr esh old att ack rele ase rat io link in VU COMP GR 1 2 3 4 5 6 7 8 9 10 20 7 3 0 10 5 1 m 1 03 3k 20 k 10.8k 0 1 2 12 HI-Z 48V ribbon line mic .0 3 1 3 1 :1 12 :1 1 :4 3 200 15 0 T R I M GAIN 10dB 65[...]

14 Specifications MIC AMP SEC TION MEASURED A T MIC AMP OUTPUT GAIN RANGE (5dB steps) Mic input 10-65dB Hi-Z input -10-45dB THD+N 1kHz, 22Hz-22kH z BW @ 20dB Gain +20dBu out <0.00085% @ 40dB Gain +20dBu out <0.0010% @ 60dB Gain +20dBu out <0.0050% INTERMODULA TION DISTORTION @ 40dB Gain +20dBu out SMPTE/DIN 4:1 7kHz/50Hz <0.0020 NOISE -[...]

15 Compressor – Inserts Pre or P ost EQ Threshold Range -15 - +15 dBu Attack Range 3 – 200 ms Release Range 0.03 – 3 s Ratio Range 1:1 – 12:1 Gain Reduction 0 – 20dB THD+N 1kHz, 22Hz-22kH z BW @ 0dB Gain +20dBu out <0.002% INTERMODULA TION DISTORTION @ 0dB Gain +20dBu out SMPTE/DIN 4:1 7kHz/50Hz <0.002% OUTPUT NOISE 22Hz-22kHz B W @[...]

16 W arr anty Information 1. Grac e Design warrants all of our products to be free of def ective parts and work manship for a period of ve y ears. 2. This w arranty period begins at the original date of purchase and is tr ansferable to an y person who may subsequently purchase the product during this time. 3. This w arranty excludes the follo wi[...]

17 Revision Page Change Date Initials A all 03/01/2010 edg Manual Revisions[...]