valutazioni - 5, GPA: 3.8
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Facilità d'uso
With 5 outputs, 4 mixing busses and 8/12 input channels, the M508/512 makes an excellent main mixing board for small to medium scale nightclub, theatrical and broadcast jobs. In large scale concert reinforcement environments, the M508/512 can be used as an adjunct to the main mixing console or as a stage monitor mixer. The M508/512 is built of only the finest components such as smooth, quiet conductive plastic faders, and equalizers with “flat”position detents. These controls are calibrated accurately, in dB, for precise, repeatable settings that save valuable set-up time. To ensure the M508/512 holds up under real world" conditions, it is equipped with a bipolar 25 V power supply that affords a generous margin of headroom (an easy +24 dB output). Internally the M508/512 has the convenience of modular plug-in circuitry, and outside a solid front panel adds to strength and durability. You’ll appreciate the extra refinements in the M508/ 512’s advanced technology, reliability and human engineering. To take full advantage of your M508/512 mixer, please read this manual carefully. CONTENTS SPECIFICATIONS.......................... 2 FRONT PANEL OPERATION INPUT CHANNELS....................... 3 OUTPUT SECTION....................... 5 REAR PANEL FEATURES .................... 7 CONNECTION............................ 9 INSTALLATION NOTES......................10 LEVEL DIAGRAM & INPUT OUTPUT SPECIFICATIONS . . 11 BLOCK DIAGRAM.........................12 NOTES (For U.S.A.).........................13 SERVICE...............................14 1 SPECIFICATIONS Frequency Response Total Harmonic Distortion (THD) *Hum and Noise (20Hz to 20kHz, 150ft source) (Input Selector set at "—60") Maximum Voltage Gain (Input Selectors set at 60"dB, where applicable) Equalization Inputs to Console Mixing Busses Console Outputs Crosstalk VU Meters Peak Indicators Phantom Power Finish Dimensions Weight Power Supply + 1, —3dB, 20Hz to 20kHz; +0, —0.5dB, 50Hz to 10kHz. Less than 0.5% @+10dB, 20Hz to 20kHz, Less than 0.1% @+20dB, 70Hz to 20kHz. —127dB Equivalent input noise (EIN); —95dB residual output noise with all faders down. —72dB PROGRAM OUT (76dB S/N); Master fader at nominal level & all channel faders down. —63dB PROGRAM OUT (67dB S/N); Master fader and one channel fader at nominal level. —72dB ECHO OR FB OUT (76dB S/N); Master fader at nominal level and all FB or Echo Mix controls at minimum level. —63dB ECHO or FB OUT (67dB S/N); Master fader and one FB or Echo Mix control at nominal level. PROGRAM 84dB; Channel In to PGM Out. FB 84dB; Channel In to FB Out. ECHO** 84dB; Channel In to Echo Out. EFFECTS 20dB; EFFECTS IN to PGM Out. SUB 10dB; SUB IN to PGM Out. LOW ±15dB @100Hz, shelving. MID ±15dB @2kHz, peaking. HIGH ±15dB @>10kHz, shelving. M508 8 x INPUT (Channel Input to PGM L & R Busses) M512 12 x INPUT (Channel Input to PGM L & R Busses) 2 x PGM SUB IN (Submixer Input to PGM busses). 1 x FB SUB IN (Submixer Input to FB bus). 1 x ECHO SUB IN (Submixer Input to Echo bus). 3 x EFFECTS IN (Auxiliary program input and effects return). 2 x Main Program (L & R). 1 x Foldback. 1 x Echo. 2 x PGM (L & R) 1 x FB 1 x ECHO 1 x PHONES (STEREO) —60dB @1 kHz, adjacent inputs; —60dB @1 kHz, input to output. 2 illuminated meters; one switchable for PGM L or FB, other for PGM R or ECHO. (0 VU = +4dB). 1 LED built into each input channel and each VU meter. Input LEDs turn on when post-input selector signal reaches or exceeds 3dB below clipping. Meter LEDs turn on when output signal reaches or exceeds 10dB below clipping. For remote powering of condenser microphones, DC can be switched on via a rear panel phantom power switch. (+40V DC for US & Canadian models and +48V DC for the other model) Voltage is applied to pins 2 and 3 of the input XLR connectors via a pair of 6.8kft resistors that feed each balanced input transformer. Black painted panels, rosewood veneer cabinet, color coded knobs. M508 20-3/8" (517mm) wide x 7-1/2" (191mm) high x 19-1/2" (493mm) deep M512 25-7/8" (657mm) wide x 7-1/2" (191mm) high x 19-1/2" (493mm) deep (refer to P.10) M508 34 pounds (15.4 kg) M512 44 pounds (20 kg) Self-contained module inside the console, fused and fully regulated. US & Canadian models 120V AC (nominal), 50 or 60Hz; 105V AC minimum, 130V AC maximum; 60W for US model and 70VA for Canadian model Other model 110/120/220/240V AC selectable, 50 or 60Hz; 70W * Measured with a 6dB/octave filter 12.47kHz; equivalent to a 20kHz filter with infinite dB/octave attenuation. • * Maximum voltage gain (Echo) measured with channel fader at nominal level. • OdB = 0.775V r.m.s. • All specifications subject to change without notice or obligation. FRONT PANEL OPERATION INPUT CHANNELS OCHANNEL FADER The Fader continuously varies the channel output level to the left and right program mixing busses. The nominal setting is ""10" position, as indicated by a heavier calibration line. Given an input ...
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