Peavey Automix2 user manual

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2
AUTOMIX
ª
8 Channel Automatic Mixer
OPERATING GUIDE

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Intended to alert the user to the presence of uninsulated Òdangerous voltageÓ within the productÕs enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons. Intended to alert the user of the presence of important operating and maintenance (servicing) instructions in the literature accompanying the product. CAUTION: Risk of electrical shock Ñ DO NOT OPEN! CAUTION: To reduce the risk of electric shock, do not remove cover. No user serviceable parts inside.

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ENGLISH ª AUTOMIX 2 INTRODUCTION ª ª Thank you for purchasing the Automix 2! The Architectural Acoustics Automix 2 is a high quality automatic mixer with eight transformer balanced mic/line inputs. Each channel provides a gain control, 48 Volt phantom power (mic inputs), low cut filter, activity/clipping LED, an Aux send control and a choice between manual or automatic operation. Each channel also provides a defeatable insert point, 5 Volt TTL status output and can be muted individually or mult

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INTERNAL PANEL 8 9 12 3 4 5 6 7 10 13 11 INTERNAL PANEL FEATURES 3. DIP SWITCHES Each channel has four DIP switches that control the following functions. A. MAN/AUTO This switch determines whether the channel is operating in the automatic or manual mode. B. OFF/MBUS This switch is used to connect the channel to the system mutebus. This allows multiple inputs to be muted simultaneously under external control. See MUTEBUS, page 7. C. LO CUT/FLAT This switch selects the low cut filter. The low cut

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7. PRIORITY (CHANNEL 1 and 2 ONLY) Turning the priority control clockwise allows one channel to override the others in the mix. It does this by ÒtrickingÓ the gain computing circuits into thinking this channel is louder than the others. Up to 9dB of priority is available. 8. AUX MASTER LEVEL CONTROL This control sets the level of the signal being sent to the Aux Out. This level should be set after the individual channel levels have been set. 9. DOWNWARD EXPANDER The downward expander can be u

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24 23 22 18 19 17 15 16 25 20 21 14 BACK PANEL FEATURES 14. MIC INPUTS For use with low impedance microphones or low level sources. This is a transformer balanced input with an impedance of 2,000½. Input sensitivity for nominal output is -56dBu to -19dBu. LINE INPUTS These allow line level inputs to be used. This is a transformer balanced input through a 30dB resistive pad. Input impedance is >20k½. 15. INSERT IN/OUT This is a signal loop that allows an external device such as an EQ to be inser

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MUTE Channels can be muted individually by shorting this terminal to ground. It provides approximately 45dB of attenuation. Mute with External Switch STATUS OUTPUT The status output is a DC logic output that is high (+5 Volts) when the channel is active and low (0Volts) when the channel is not active. This DC voltage can be used to key video cameras or trigger key lights on active microphones. NOTE: Each channel can source a maximum of 10 mA. 18. MAIN OUT The main output is a 600½, transforme

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21. MUTEBUS The mutebus is a control port that when shorted to ground will mute all channels that are assigned to the mutebus approximately 45dB. The channels to be muted must be assigned to the mutebus using the internal switch marked OFF/MBUS. See INTERNAL PANEL FEATURES, page 4 and diagram page 7. 22. LINK PORT To increase the number of inputs available, multiple Automixers can be linked together. Linking automixers is a very simple process. It can be done with a small flat-head screwdrive

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ª AUTOMIX 2 SPECIFICATIONS Nominal Out = 2.21 dBu = 1 Volt Input Specifications: Function Input z Input Gains Input Levels Bal./ Connector (ohms) Setting (to bal. outputs) Unbal. Min Min* Nominal** Max Microphone 2k Max Gain -64dBu -43dBu -2dBu Bal. Mic In (+) (150 ohms) (60dB) (0.5mV) (5.5mV) (615mV) Mic In (-) Ground Line >20k Max Gain -35dBu -14dBu +27dBu Bal. Line In (+) (10K ohms) (30dB) 13.7mV (155mV) (17.4V) Line In (-) Ground * Minimum input level (Sensitivity) is

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ª AUTOMIX 2 SPECIFICATIONS Hum and Noise: Output Residual Noise S/N Ratio Test Conditions Ref: 0 dBu Ref: 2:21 dBu Main Out -85dBu 87dB All controls down -84dBu 86dB One channel nominal, Master level nominal -85dBu 87dB All controls down Aux Out -80dBu 82dB One channel send nominal,Monitor master nominal (Hum and noise measurements: 22 Hz to 22 kHz BW) GENERAL SPECS: Remote volume range: 0dB to 70dB of attenuation Off channel attenuation: 0dB to 70dB

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ª AUTOMIX 2 ª Setting up the Automix 2 1. Wiring Inputs and Outputs: For best results, it is recommended that two-conductor shielded cable is used for all input and output connections. When making connections remember to observe proper polarity. The recommended strip length for the detachable screw terminals is 1/2". 2. Initial Control Settings: Channel Levels (Faceplate) Ñ Full CCW Channel Gain Trims (Internal) Ñ Full CCW Aux Send Controls (Internal) Ñ Full CCW Priority (Internal) Ñ Full CCW N

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5. Setting the Overall Level: Set the master level control (external) for the desired overall output level. This mixerÕs levels are now set and the mixerÕs other features (downward expander, low cut and priorities) can be set as desired for the application. 6. Attaching the Security Panel: Attach the security plexiglass with the eight supplied screws. This will prevent any unwanted tampering with the settings. 12

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ESPA„OL AUTOMIXª 2 INTRODUCCIîN ª ª ÁLe agradecemos haber adquirido el Automix 2! El Architectural Acoustics Automix 2 es un mezclador autom‡tico de alta calidad, con ocho entradas de micr—fono/l’nea equilibradas por transformador. Cada canal posee control de ganancia, alimentaci—n fantasma de 48 V (entradas de micr—fono), filtro de corte de bajos, LED indicador de actividad/recorte de se–al, control de se–al de muestra auxiliar y la opci—n de operaci—n manual o autom‡tica. Cada canal tambiŽn

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permite que varias entradas se silencien simult‡neamente mediante un control externo. Vea BUS DE SILENCIADO en la p‡gina 7. C. CORTE DE BAJOS/PLANO Este conmutador selecciona el filtro de corte de bajos. El filtro de corte de bajos provee atenuaci—n progresiva de baja frecuencia, que ayuda a minimizar los ruidos no deseados (movimiento de micr—fonos, golpes en la mesa, etc.). La atenuaci—n progresiva comienza a 100 Hz (Ð3 dB). Es un filtro de 6 dB por octava. D. DESACTIVADO/+48 Cuando este i

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CONFIGURACIîN DEL EXPANSOR DESCENDENTE Pida a otra persona que hable frente a un micr—fono al nivel m‡s bajo que se espera utilizar. Gire lentamente el expansor descendente hacia la derecha, hasta que se atenœe el ruido ambiente de fondo entre las palabras. Tenga cuidado de no excederse. Cuanto m‡s expansor descendente se utilice, menos "natural" ser‡ el sonido del sistema. Este mŽtodo brinda un buen punto de partida para el ajuste, pero la mejor manera de configurar el expansor descendente

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ENTRADAS DE LêNEA Permiten utilizar entradas con nivel de l’nea. Son entradas equilibradas por transformador a travŽs de un atenuador resistivo de 30 dB. La impedancia de entrada es >20 k½. 15. ENTRADA/SALIDA DE INSERCIîN Es un circuito de se–al que permite insertar un dispositivo externo, tal como un ecualizador, en el camino de la se–al de los canales individuales (consulte el diagrama m‡s abajo). Insert In/Out IN OUT + - G G - + CEQ 280a 16. INTERRUPTOR DE DERIVACIîN DE SE„AL Cuando no se u

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ESTADO DE SALIDA El estado de la salida es una salida l—gica de CC que est‡ en condici—n alta (+5 V) cuando el canal est‡ activo, y baja (0 V) cuando est‡ inactivo. El voltaje de CC se puede utilizar para excitar videoc‡maras o disparar luces indicadoras en micr—fonos activos. NOTA: Cada canal puede generar un m‡ximo de 10 mA. 18. SALIDA PRINCIPAL Es una salida de 600 ½ equilibrada por transformador, que se puede utilizar con un amplificador de potencia externo. ƒste es el punto en que se acce

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Link Port 1. Prepare un cable de enlace. 2. Conecte los mezcladores segœn el diagrama de m‡s arriba. 3. Seleccione el mezclador a ser utilizado como maestro y coloque su conmutador de enlace en la posici—n ÒmasterÓ (maestro). 4. Todos los otros mezcladores del sistema deben tener sus conmutadores de enlace en la posici—n ÒslaveÓ (esclavo). Ahora usted cuenta con un mezclador autom‡tico de 16 canales o m‡s. Los controles maestros de la unidad elegida como "maestra" se utilizar‡n para controlar

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FRAN‚AIS ª AUTOMIX 2 INTRODUCTION ª ª Nous vous fŽlicitons pour lÕachat de cet Automix 2. LÕAutomix 2 Architectural Acoustics est un mixeur automatique haute qualitŽ possŽdant huit entrŽes micro/ligne symŽtriques (transformateur). Chaque canal possde un contr™le de gain, une alimentation phantom 48 Volt (entrŽes micro), une filtre coupe-bas, une LED dÕactivitŽ/Žcrtage, un contr™le Aux send et le choix entre une opŽration manuelle ou automatique. Chaque canal est par ailleurs ŽquipŽ dÕun insert

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C. LO CUT/FLAT Ce sŽlecteur actionne le filtre coupe-bas. Ce filtre attŽnue les frŽquences graves afin de minimiser les bruits indŽsirables (manipulation du micro, etc...). La frŽquence de coupure est fixŽe ˆ 100 Hz (-3dB) et la pente du filtre est de 6dB par octave. D. OFF/+48 Lorsque ce sŽlecteur est en position +48, une alimentation Phantom de +48 Volt est prŽsente aux bornes + et - de lÕentrŽe micro. Cela permet lÕalimentation des micros passifs mais devra tre dŽsactivŽ lors de lÕutilis