Heritage Audio DMA 73 Скачать руководство пользователя страница 6

SPECIFICATIONS 

Microphone input impedance: 

High=1200 

Ω

 minimum; Low= 300 

Ω

 minimum. Higher gain positions gradually have 

greater impedances, optimum for low gain ribbon mics. Input is transformer balanced and floating.

Line input impedance: 

10 k

Ω

 bridging, transformer balanced and floating.

Output  impedance: 

Less  than  75 

Ω

,  Carnhill  transformer  balanced  and  floating,  to  drive  a  load  of  600 

Ω

  (Factory 

terminated).

D.I. input impedance: 

Greater than 2 M

Ω

, unbalanced.

Maximum output: 

Greater than +26 dBu into 600 

Ω

 (internally terminated).  

THD: 

Less than 0,025 % at 1 kHz, Less than 0,05 % at 100 Hz.

Frequency response:

 20 Hz (+0,3 dB) to 20 kHz (-0,2 dB).

Maximum Gain:

 Slightly greater than 80 dB.

Output stage noise:

 Less than -100 dBu.

Power consumption: 

88 mA per rail @ ± 16 V DC.

(External linear PSU to avoid electromagnetic radiation into the audio transformers (a.k.a. hum).

• Dimensions DMA 73 (W x H x L): 

482 mm x 44 mm 

(1 Rack unit) 

x 184 mm. 

Weight: 

3,4 Kg.

• Dimensions External PSU (W x H x L): 

200 mm x 44 mm 

(1 Rack unit) 

x 160 mm.

Weight: 

1,9 Kg

6

SIGNAL FLOW 

MIC/LINE  INPUT

LINE  OUTPUT

OUTPUT AMP

INPUT  AMP

CHANNEL RIGHT

PAD

LOZ

PHASE

HIGH PASS FILTER

CHANNEL LEFT

MIC/LINE  INPUT

LINE  OUTPUT

OUTPUT AMP

INPUT  AMP

PAD

LOZ

PHASE

HIGH PASS FILTER

D.I.

D.I.

Содержание DMA 73

Страница 1: ...USER MANUAL DUAL CHANNEL MICROPHONE PREAMP CLASS A RACKMOUNT DMA 73 August 2022 Rev 1 0...

Страница 2: ...makes them virtually unobtainable for the great majority Now it s possible to obtain that same sound with a brand new piece that will give you all the problem free heavy duty use you ll need for years...

Страница 3: ...e vintage character is indeed guaranteed and you won t find them in any other brand s products The line mode allows for reamping prerecorded tracks and it is perfect for adding the magic vintage Class...

Страница 4: ...Power Supply LINE OUTPUT Male XLR Connector LINE INPUT Female XLR Connector MIC INPUT Female XLR Connector 1 2 3 4 5 INPUT GAIN SWITCH 5 dB Steps From 30 to 80 D I INPUT High Impedance Class A JFET D...

Страница 5: ...ER USB COMPUTER LINE INPUT L CONDENSER MIC R ACTIVATE 48 V FOR CONDENSER MIC MIC INPUT R MIC INPUT L OUTPUT L GUITAR FX PEDAL OUTPUT R D I INPUT R D I INPUT L LINE INPUTS AUDIO INTERFACE LINE INPUTS A...

Страница 6: ...terminated THD Less than 0 025 at 1 kHz Less than 0 05 at 100 Hz Frequency response 20 Hz 0 3 dB to 20 kHz 0 2 dB Maximum Gain Slightly greater than 80 dB Output stage noise Less than 100 dBu Power co...

Страница 7: ...ny output at all from the unit Check to see if the OUTPUT knob is fully turned down as this will attenuate the signal completely Sending a signal to the unit from a DAW overloads it terrible It is nec...

Страница 8: ...ate The warranty excludes problems due to normal wear abuse shipping damage or failure to use the product in accordance with the specifications Heritage Audio shall not be liable for damages based upo...

Страница 9: ...RECALL SHEETS 9 Session Title Track Connected Equipment Date Instrument Notes Switch ON Switch OFF Session Title Track Connected Equipment Date Instrument Notes Switch ON Switch OFF...

Страница 10: ...www heritageaudio com HERITAGE AUDIO C Alfonso G mez 38 3C 28037 Madrid Spain Tel 34 917 266 189 info heritageaudio com...

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