Mackie Onyx 4880

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Descrizione

Mixer per uso live - 48 canali mono microfonolinea; EQ a 4 bande con 2 medi variabili; 8 mandate Aux pre/post-fader
accoppiabili per mandate stereo; MUTE, SOLO, assegnazione MIX, 1-e 3-4 e scala con 4 led per canale. Gruppi con
indicatore a 4 led, Mute, AFL Solo ed assegnazione e pan per L/R. Master con Talkback, gestione dei 4 gruppi di Mute, sezione generale
del solo, controllo della regia e delle cuffie assegnabile; sezione regia cuffia con selezione ingressi.

Dati della scheda tecnica
Alimentazione  :   100V/240V , 50/60Hz
Alimentazione Phantom  :   + 48 V
Connettori di ingresso  :   48 XLR; 48 jack 6,3mm; 48 insert; 
Ingressi  :   48 canali mono microfono linea, con phantom 48v
Livelli di ingresso  :   Mic input +21 dBu; Line input +30dBu; Aux Input +21 dBu
Impedenza di ingresso  :   Mic Input: Bilanciato 2,4Kohm; Mono channel line Input: Bilanciato 30 kOhm-sbilanciato: 15 kOhm; Stereo Aux Inputs: Bilanciato 20Kohm; Sbilanciato: 20Kohms.
 
Indicatori (LED)  :   12 Led, Mute, PFL Solo, livello segnale 0 db, -20 db ,+20 db,
 
Note tecniche  :   Fase e filtro 100Hz/12dB

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Scheda Tecnica

Frequency Response
Mic Input to Main Output (Gain @ Unity)
 +0, –1 dB, <10 Hz to 80 kHz
+0, –3 dB, <10 Hz to 130 kHz
Distortion (THD & IMD)
Mic Input to Main Output (@ +4 dBu)
 THD: < 0.007% max, 0.005% typical, 20 Hz to 20 kHz
SMPTE IMD: < 0.005% (7 kHz/60 Hz, 4:1)
Dynamic Range
 
 >105 dB, 24 channels assigned
>115 dB, one-channel assigned
Noise Floor
Signal-to-Noise Ratio:
 –87 dBu (ref. +4 dBu, Mic In to Main Out, 48 channels and Main Mix levels at unity)
–90 dBu, (ref. +4 dBu, Mic In to Main Out, 24 channels and Main Mix levels at unity)
Equivalent Input Noise (E.I.N.), 20 Hz to 20 kHz Bandwidth, 150Ω source impedance
 –129.5 dBu @ +60 dB gain
Mic Output Noise:
 Direct Output: –98 dBu (minimum gain)
Residual Output Noise:
 Main Out: –100 dBu (Channel and Main Mix levels off)
Main Out: –83 dBu (48 channels and Main Mix levels at unity),
–86 dBu (24 channels and Main Mix levels at unity)
Common Mode Rejection Ratio (CMRR)
Mic In: >70 dB @ 1 kHz, Gain @ maximum
 
Crosstalk
Adjacent Inputs: < –95 dB @ 1 kHz
Input to Output: < –85 dB @ 1 kHz
Input Gain Control Range
Mic In: 0 dB to +60 dB
Line In: –20 dB to + 40 dB, mono channels
Phantom Power
+48 VDC
Equalization
Mono Channel EQ:
 High: ±15 dB @ 12 kHz
High Mid: ±15 dB, sweepable from 400 Hz to 8 kHz
Low Mid: ±15 dB, sweepable from 100 Hz to 2 kHz
Low: ±15 dB @ 80 Hz
Stereo Channel (Aux Input) EQ:
 High: ±15 dB @ 12 kHz
High Mid: ±15 dB @ 2.5 kHz
Low Mid: ±15 dB @ 400 Hz
Low: ±15 dB @ 80 Hz
Mixer Rated Output
Main Outs: +4 dBu
Aux Send: +4 dBu
Group Send: +4 dBu
Monitor Out: +4 dBu
Matrix Out: +4 dBu
Maximum Rated Output:
 +21 dBu @ Main XLR and TRS outputs
Maximum Input Levels
Mic Input: +21 dBu, Gain @ unity
Line Input: +30 dBu, Gain @ –20 dB
Aux Input: +21 dBu
Maximum Voltage Gain
Mic Input to:
 Main Out: 90 dB
Group Send: 80 dB
Aux Sends: 86 dB
Monitor Out: 102 dB
Matrix Out: 105 dB
Phones Out: 102 dB
Line Input to:
 Main Out: 70 dB
Group Send: 60 dB
Aux Sends: 66 dB
Monitor Out: 82 dB
Matrix Out: 85 dB
Phones Out: 82 dB
Stereo Aux Input to:
 Main Out: 50 dB
Group Send: 40 dB
Aux Sends: 39 dB
Monitor Out: 62 dB
Matrix Out: 65 dB
Phones Out: 62 dB
Input Impedance
Mic Input: 2.4 kΩ, balanced
Mono Channel Line Input: 30 kΩ balanced;
15 kΩ unbalanced
Stereo Aux Inputs: 20 kΩ balanced;
20 kΩ unbalanced
Output Impedance
Main Out: 150 Ω balanced, XLR outputs;
150 Ω TRS outputs
Direct Out: 300 Ω
Group Sends: 100 Ω
Monitor Out: 100 Ω
Matrix Out: 100 Ω
Aux Sends: 100 Ω
Phones Out: 25 Ω