Mackie DX8 manuale d’uso

D X8 Digi t al A udio Mix er/ Sig nal P roc es s or wit h Aut omixing In st ru ctio n Manu al OL 2 4 7 10 15 20 25 30 35 40 50 OL 2 4 7 10 15 20 25 30 35 40 50 OL 2 4 7 10 15 20 25 30 35 40 50 OL 2 4 7 10 15 20 25 30 35 40 50 OL 2 4 7 10 15 20 25 30 35 40 50 OL 2 4 7 10 15 20 25 30 35 40 50 OL 2 4 7 10 15 20 25 30 35 40 50 12 15 9 6 3 0 3 6 9 12 15[...]

DX8 – 2 CAUTION AVIS RISK OF ELECTRIC SHOCK DO NOT OPEN RISQUE DE CHOC ELECTRIQUE NE PAS OUVRIR CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT REMOVE COVER (OR BACK) NO USER-SERVICEABLE PARTS INSIDE REFER SERVICING TO QUALIFIED PERSONNEL ATTENTION: POUR EVITER LES RISQUES DE CHOC ELECTRIQUE, NE PAS ENLEVER LE COUVERCLE. AUCUN ENTRETIEN DE P[...]

DX8 – 3 2. INTRODUCTION The DX8 is a DSP-based digital audio mixer and signal processor designed for use in a variety of installations such as churches, courtrooms, convention centers, and hotels. It provides eight universal inputs and two balanced outputs allowing true 8x2 mixing for stereo or dual-zone applications. The DX8 includes powerful si[...]

DX8 – 4 TRIM BUS A U +20 -20 TRIM 1 TRIM BUS B U +20 -20 TRIM 2 TRIM 3 TRIM 4 TRIM 5 TRIM 6 TRIM 7 TRIM 8 M I C G A I N 0 60 – + SERIAL NUMBER MANUFA CTURING DA TE DIRECT OUTPUTS POWER INPUT 22 - 28V DC, 3A M A X 2345678 1 – + G G + – MIC LINE LINE LINE LINE MIC LINE MIC LINE MIC LINE MIC LINE MIC LINE MIC LINE MIC LINE MIC DX8 DIGITAL MIXE[...]

DX8 – 5 2 OL 4 7 10 15 20 25 30 35 40 50 A B LOCK MODE POWER COMM PORT B A MASTER DX8 DIGITAL MIXER B REMOTE BUS A RECORD A B OUTPUTS LOGIC I/O TRIM 8 M I C G A I N 0 60 T URING DA TE COMM PORT 12345678 LINE MIC - 30dB +30dB U N 0 0 dB PHANTOM POWER 48V DC 12 1 +5V 11 G1 G + – G + – G + – INPUTS OUTPUTS ON MODE This switch changes the front[...]

DX8 – 6 B REMOTE BUS TRIM BUS A U +20 -20 A TRIM 1 RECORD A B OUTPUTS LOGIC I/O TRIM BUS B U +20 -20 TRIM 2 TRIM 3 TRIM 4 TRIM 5 TRIM 6 TRIM 7 TRIM 8 M I C G A I N 0 60 – + SERIAL NUMBER MANUFA CTURING DATE COMM PORT DIRECT OUTPUTS 12345678 POWER INPUT 22 - 28V DC, 3A MAX 2345678 1 – + G G + – MIC LINE LINE LINE LINE MIC LINE MIC LINE MIC L[...]

DX8 – 7 3. INS T ALLA TION APPLICA TION DIAGRAMS B REMOTE BUS TRIM BUS A U +20 -20 A TRIM 1 RECORD AB OUTPUTS LOGIC I/O TRIM BUS B U +20 -20 TRIM 2 TRIM 3 TRIM 4 TRIM 5 TRIM 6 TRIM 7 TRIM 8 M I C G A I N 06 0 – + SERIAL NUMBER MANUFA CTURING DATE COMM PORT DIRECT OUTPUTS 12345678 POWER INPUT 22 - 28V DC, 3A MA X 2345678 1 – + G G + – MIC LI[...]

DX8 – 8 B REMOTE BUS TRIM BUS A U +20 -20 A TRIM 1 RECORD AB OUTPUTS LOGIC I/O TRIM BUS B U +20 -20 TRIM 2 TRIM 3 TRIM 4 TRIM 5 TRIM 6 TRIM 7 TRIM 8 M I C G A I N 06 0 – + SERIAL NUMBER MANUFA CTURING DATE COMM PORT DIRECT OUTPUTS 12345678 POWER INPUT 22 - 28V DC, 3A MA X 2345678 1 – + G G + – MIC LINE LINE LINE LINE MIC LINE MIC LINE MIC L[...]

DX8 – 9 B REMOTE BUS TRIM BUS A U +20 -20 A TRIM 1 RECORD AB OUTPUTS LOGIC I/O TRIM BUS B U +20 -20 TRIM 2 TRIM 3 TRIM 4 TRIM 5 TRIM 6 TRIM 7 TRIM 8 M I C G A I N 06 0 – + SERIAL NUMBER MANUFACTURING D ATE COMM PORT DIRECT OUTPUTS 12345678 POWER INPUT 22 - 28V DC, 3A MAX 2345678 1 – + G G + – MIC LINE LINE LINE LINE MIC LINE MIC LINE MIC LI[...]

DX8 – 10 B REMOTE BUS TRIM BUS A U +20 -20 A TRIM 1 RECORD AB OUTPUTS LOGIC I/O TRIM BUS B U +20 -20 TRIM 2 TRIM 3 TRIM 4 TRIM 5 TRIM 6 TRIM 7 TRIM 8 M I C G A I N 06 0 – + SERIAL NUMBER MANUFA CTURING DATE COMM PORT DIRECT OUTPUTS 12345678 POWER INPUT 22 - 28V DC, 3A MA X 2345678 1 – + G G + – MIC LINE LINE LINE LINE MIC LINE MIC LINE MIC [...]

DX8 – 11 Applica tion Dia grams A: T yp ical S tere o Applica tion This diagram depicts a simple setup, using the DX8 in a stereo application. A microphone is connected to the MIC input on channel 1 for paging purposes, and several program sources are connected to the LINE inputs on channels 3 through 8. B: T yp ical T wo- Z one Applica tion This[...]

DX8 – 12 C onnectio ns C onnect ing Bal anc ed Sourc es Use high-quality three-conductor cable for balanced connections, such as Star Quad by Belden, Canare, Mogami, etc. The better the shield, the better the audio signal is protected from induced EMI and RFI. Note: With screw-down connectors, it's best to use stranded wire that is not tinne[...]

DX8 – 13 Strip the wire back about 1/4" inch, insert the wire as far as it will go into the appropriate hole in the supplied Phoenix-type connector , and tighten down the screw with a small slot-head screwdriver . It is recommended that you use 20 or 22 gauge wire with the Phoenix-type connectors. The OUTPUT connectors are wired as follows: [...]

DX8 – 14 4. OPERA TION Set the Lev els MIC and LINE Input T rim The analog trim controls on the rear panel are not adjustable via the control software since these are in the analog domain, prior to the A/D converters. T o adjust the MIC and LINE TRIM controls: 1. Start the program source playback for Input 1 or , if a microphone is connected, hav[...]

DX8 – 15 Bus A and B Inpu t T rim There is no metering after the BUS A and B input TRIM controls. These controls must be adjusted by ear . Start the program source playback for all sources connected to the BUS A or BUS B input. Slowly increase the TRIM control to the center position (12 o'clock), which is unity gain. Then adjust the TRIM con[...]

DX8 – 16 DIRECT OUTPUTS The DIRECT OUTPUTS provide an unbalanced line-level signal from each of the 8 Input channels. This signal comes from the output of the preamplifier stage on each input channel, prior to the A/D converter and subsequent digital signal processing. Use the DIRECT OUTPUTS to connect a continuous music source (e.g., satellite f[...]

DX8 – 17 The logic functions assigned to each individual logic input and output are configured using the DX8- PC application. In addition, each logic input and output can be assigned a descriptive name (up to 32 characters) for easier identification within the PC application. Note: Logic I/O functions are set from the PC application o nl y . L og[...]

DX8 – 18 Upgradin g the So ftware From time to time, Mackie Designs will release upgrades for the internal operating software in the DX8. This can be downloaded from our website ( www .mackie.com ) to a PC-compatible computer . Use the serial port on the computer to connect to the COMM POR T on the DX8 to transfer the data to the on-board flash m[...]

DX8 – 19 Ov erv iew The DX8-PC software application provides real- time control and configuration editing for the DX8 using a laptop or other PC-compatible computer . In addition to input and output level control and output EQ gain control, which is available on the front panel, the DX8-PC application provides control over each individual channel[...]

DX8 – 20 Adv anced D X8 Unit Info This opens a dialog box that contains the following information about the DX8 that is currently connected: Firmw are Upgrade This allows you to select an OS Upgrade File to upload to the DX8 as they become available. Click on the Select File button in the Firmware Upgrade window and the Select OS Upgrade File win[...]

DX8 – 21 Windo ws About This provides information about the DX8-PC software application, including the version and personnel credits. Close Win dow (ESC) This closes the window that is currently selected (front-most) on-screen. Cl ose All (C trl+/) This closes all windows that are currently open on the screen, leaving just the main window open. G[...]

DX8 – 22 Presets The DX8 stores up to 16 presets, which can be recalled via the Presets drop-down box. Select a preset in the drop-down box and the settings are instantly recalled from the DX8 memory . Sa ve T o Pre set Click this button to save the current mixer settings on the DX8 to a preset. The "Save T o Preset" window opens. Enter[...]

DX8 – 23 But t on s V iews These four buttons open the Graphic EQ, Parametric EQ, Output Compressor , and Automix views, overlaid across the input section. Graphic EQ Click this button to open the 31-Band Graphic Equalizer window for the A and B outputs. Click and drag on a slider knob to adjust the EQ. The selected band ’ s GAIN and BAND (freq[...]

DX8 – 24 C ompres s • Ratio: This determines the change in output level as a function of the change in input level, once the threshold has been exceeded. It is calibrated in decibels, with a range from 1:1 (off) to 20:1. Thus, if it is set to 10:1, an increase in input level of 10 dB (assuming the input is above the threshold level), results in[...]

DX8 – 25 Each individual channel is attenuated by an amount, in dB, equal to the difference, in dB, between that channel ’ s level and the sum of all the channel levels. This keeps the overall system gain constant, and allows the system to deliver maximum acoustic gain without feedback. There are three parts to the automixing feature in the DX8[...]

DX8 – 26 Use a control group to adjust the volume of two or more channels at the same time. All faders that are assigned to a control group will have their gain settings modified by the amount the control group fader is increased or decreased. For example, a control group might be used to adjust the overall volume for all the choir mics in a chur[...]

DX8 – 27 Action Definitions Momentary means that the logic function is active as long as the Logic Input is held active. When the Logic Input is inactive, the logic function is inactive. Latch On means that the logic function is active and stays active once the Logic Input changes from inactive to active (logic high to logic low). Changing the Lo[...]

DX8 – 28 Mid Peaking EQ These two knobs control the gain ( ± 15 dB) and the center frequency (20Hz-20kHz) of the channel mid-frequency peaking EQ. Click and drag up or down to increase or decrease the settings of these controls. The actual settings are displayed in the two boxes above the knobs. L ow Shelf EQ These two knobs control the gain ( ?[...]

DX8 – 29 Out put S trip Mete r The output meter indicates the output signal level just after the output gain control and just prior to the D/A converter stage. These meters indicate the signal level in real time relative to maximum output level (+18 dBu) and follow the meters on the front panel, with the exception that they don't indicate ga[...]

DX8 – 30 DIRECT OUTPUT CHANNEL 1 32-BIT DSP CHANNELS 2-8 (IDENTICAL TO CH 1) INPUT METER INTERNAL DIGITAL BUSES ADC 24-BIT PHANTOM POWER +48 VDC DAC 24-BIT 31-BAND GRAPHIC EQ 5-BAND PARAMETRIC EQ MUTE ALC AUTO ALC AUTO A B TRIM +5V PC OR OTHER CONTROL DEVICE (OPTIONAL) PC OR OTHER CONTROL DEVICE (OPTIONAL) REMOTE CONTROL (OPTIONAL) DX8 OR eNET16 [...]

DX8 – 31 D X8 Specifica tions INPUTS / OUTPUTS Inputs 1-8: Balanced, Phoenix-type terminals Bus A and B: Balanced, Phoenix-type terminals, Direct to Mix Buses Master Outputs: Balanced, Phoenix-type terminals Record Outputs A/B: Unbalanced, RCA Direct Outputs 1-8: Unbalanced on DB15 (bottom row is signal return) Logic Inputs: 10 Inputs on DB25 Ser[...]

DX8 – 32 DX 8 Crosstalk (1kHz relative to 0 dBu, 20Hz-20kHz bandwidth, any line input to adjacent Direct Out): T rim to unity: < – 90 dB Frequency Response Mic input to any output: 20Hz – 20kHz, ± 0.5 dB Equivalent Input Noise (EIN) Mic in to Direct out, max gain, 150 ohm termination: – 129.5 dBm unweighted Common Mode Rejection (CMR) M[...]

DX8 – 33 Dis claimer Mackie Designs continually engages in research related to product improvement, new materials, and production methods. Design refinements are introduced into existing products without notice as a routine expression of that philosophy . For this reason, any current Mackie product may differ in some respect from its published de[...]

DX8 – 34 Appendi x B: L ogic Ou tpu t Fun ctio n s Logic Output Function Parameter Condition Inactive None None Inp Sig Present Input 1-8 Input Signal > – 40 dB Out Sig Present Output A Output A Signal > – 40 dB Output B Output B Signal > – 40 dB Input Chan Open Input 1-8 Input Gain > – 40 dB Output Chan Open Output A Output A[...]

DX8 – 35 DX-SW4 Remote Switch Control (4-button/4-LED) Switch Positions ID 1 through 8 Function Control 1 Control 2 Control 3 Control 4 0 00000000 Mute Input 1-4 (1) Mute Input 1 Mute Input 2 Mute Input 3 Mute Input 4 1 10000000 Mute Input 1-4 (2) Mute Input 1 Mute Input 2 Mute Input 3 Mute Input 4 2 01000000 Mute Input 5-8 (1) Mute Input 5 Mute [...]

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