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501

page

GAIN RANGE

(5dB steps)

Mic input

10 - 65dB

Hi-Z input

-10 - 45dB

Output trim control

0 to +10dB

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

50Ω source

<-130dB

150Ω source

<-128dB

600Ω source

<-124dB

CMRR

(

@60dB Gain, 3.5Vcm)

100Hz

>55dB

1kHz

>75dB

10kHz

>65dB

PHASE DEVIATION

(HPF off)

50Hz-25kHz @40dB Gain

<10°

FREQUENCY RESPONSE

Mic input @ 40dB Gain -3dB

3.8Hz-288kHz

Mic input @ 40dB Gain -0.5dB

8.35Hz-135kHz

Hi-Z input @ 20dB Gain -3dB

1.7Hz-180kHz

Hi-Z input @ 20dB Gain -0.5dB

4Hz-72kHz

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

-12dBu

Red threshold

+16dBu

MAXIMUM OUTPUT LEVEL

100k Ohm load, 0.1% THD , 1kHz, API Lunchbox

27dBu

WEIGHT and DIMENSIONS

0.7 lb

H5.25” x W1.5” x D6.6”

316g

H13.34cm x W3.81cm x D16.75cm

POWER CONSUMPTION

Current required from +16V and -16V power supplies

120mA Max

speCIfICatIons

Содержание m501

Страница 1: ...es microphone preamplifier module m501 all contents Grace Design Lunatec LLC owner s manual Rev A 2434 30th Street Boulder CO 80301 USA tel 303 443 7454 fax 303 444 4634 info gracedesign com www gracedesign com ...

Страница 2: ...manuals and technical documents Grace Design has been building audiophile quality products for the recording industry over 15 years The technology in the m501 is the result of extensive listening field testing and careful refinement Your new m501 preamplifier represents a combination of absolutely pristine audio performance robust mechanical construction and bombproof reliability at a reasonable p...

Страница 3: ... operation Weight preamplifier 0 31kg 7lbs SAFETY MARKING SYMBOLS CAUTION READACCOMPANYINGDOCUMENTS This symbol located on the equipment and in this manual refers to important instructions Read this manual thoroughly before operating this equipment WARNING ELECTRICALSHOCKHAZARD This symbol located on the equipment and in this manual indicates the potential for electrical shock hazard SERVICE INFOR...

Страница 4: ...r warranty on parts and labor Made in the USA PEAK INDICATOR The LED peak indicator which monitors the signal at the output of the pream plifier illuminates green at 14dBu and red at 16dB 10dB before clipping GAIN CONTROL The gain control has 12 positions and adjusts the voltage gain on the micro phone input from 10dB to 65dB in 5dB steps When using the instrument input the gain range is 10dB to 4...

Страница 5: ... instrument input is 10dB to 55dB Using the instrument input with an unbalanced source is simple When a mono jack is used the sleeve will automatically ground the inverting input ring when plugged in Installing the m501 in a 500 series rack Open your m501 box The module is in a bag under the plastic korvu retain 1 ing sheet which you should be careful not to cut Simply fold down the outer cardboar...

Страница 6: ...clockwise Using ribbon mic mode Pushing the ribbon switch does three things 48V phantom power is locked out to prevent potential damage to ribbon microphones the impedance of the mic input is raised from 8 1k Ohms to 20k Ohms and the 48V DC blocking input capacitors are bypassed with sealed gold contact relays The maximum gain available on the m501 is 75dB which is achieved by setting the gain con...

Страница 7: ...nterface Mixer PA system 10 dB 1 m 50 GAIN TRIM HI Z 48V ribbon HPF 10 dB 10 dB 0 dB 0 dB 10 dB 65 dB 65 dB m501 frontpanel Basic Wiring Diagram The following is a basic overview of common wiring possibilities for the m501 All applications will vary so please feel free to contact your dealer or us directly for setup and wiring information card edge connector contact assignments 1 Chassis Ground 2 ...

Страница 8: ...50Hz 25kHz 40dB Gain 10 FREQUENCY RESPONSE Mic input 40dB Gain 3dB 3 8Hz 288kHz Mic input 40dB Gain 0 5dB 8 35Hz 135kHz Hi Z input 20dB Gain 3dB 1 7Hz 180kHz Hi Z input 20dB Gain 0 5dB 4Hz 72kHz 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 12dBu Red threshold 16dBu...

Страница 9: ...er 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 MST or you can register your product online at www gracedes...

Страница 10: ...m 501 page 10 Revision Page Change Date Initials A all 9 15 09 edg Manual Revisions ...

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