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TWO 8-OHM SPEAKERS. FOUR 16-OHM SPEAKERS. While a higher total load impedance than the recommended 16 ohms will only result in a loss of power output, a total load impedance that is too low can actually damage the powered mixer. With a total load impedance of 8 ohms (one 8-ohm speaker or two 16-ohm speakers) the maximum output power of the EMX2150 is 90 watts, and the maximum power output of the EMX2200 or EMX2300 is 160 watts. With a total load impedance of 4 ohms (one 4-ohm speaker or two 8-ohm speakers) the maximum power output of the EMX2150 is 150 watts, while the maximum power output of the EMX2200 and EMX2300 is 250 watts. ■ NEVER CONNECT OR DISCONNECT SPEAKERS WHILE THE MIXER'S POWER IS TURNED ON I! mini’ • • -ini! ^3&WTPUT*SWM0 ,-R-1 SPEAKERS |-L-1 ■ or 24-160 2 1 2 1 13 SAMPLE APPLICATIONS A Small Sound System The accompanying illustration shows a simple sound reinforcement system set up using the EMX2200 (8-channel model) Powered Mixer. In the example, microphones are connected to inputs 3 through 8 — some for vocal use and some for pickup of acoustic instruments. The first two channels (1 and 2) directly accept the output from an electric piano and a synthesizer. An external effects device is connected into the AUX 1 send/return loop, complementing the mixer's internal AUX 2 digital signal processor. The LINE OUT jacks are connected to a cassette recorder so that the performance can be recorded directly via the mixer. The PA-type speakers are connected to the mixer's output channel via the SPEAKER OUT 1 jack. Electric Piano Cassette Recorder Synthesizer □ ф C=) Ф О о ш ¡.-i ,_. ri'Vi шг cznj е ее О TZT External Effects Device * g ё.| £ва а-*-. IN w w OUT NIIIIIIIIIIIIII lllll шжэт.гпттглта illlliiiill ivviviuivivivvr Microphones for Vocals and Acoustic Instruments PA-type Speakers 14 Sound Reinforcement with On-staae Monitors This system is basically similar to the simple sound system described above, except that it provides on-stage monitor speakers for the performers and a few other refinements. In this system the channel 1 and 2 inputs receive the stereo line-level signal from a multi-keyboard setup via the Hl-Z inputs, while channels 3 through 8 receive low-impedance microphones. The microphones connected to channels 3 through 6 are used for instrument pickup, while the last two channels (7 and 8) receive the vocals. External compressors are patched into the channel 7 and 8 CH INSERT IN/OUT jacks to provide a smooth vocal sound with minimum level variations. An on-stage monitor mix for the vocalists is set up using the AUX 1 controls: the AUX SEND 1 jack feeds a power amplifier which in turn drives the on-stage monitor speakers. The internal digital signal processor is used for all required effects. A tape player connected to the AUX RTN 1 jacks provides background music during breaks (and/or recorded accompaniment or sound effects for the performance). The LINE OUT jacks feed a remote monitor amplifier and speakers which provide sound in the performer's dressing rooms or other areas. Monitor Speakers Keyboard Tape Player □ am ВЕТЗШ Ш" -*-i -иj Д ,| -I jj и -iU JJJ I I -I jj Compressor J’g of О QOp DO 0 |ö IО QQOQ О 0 Power Amp. сзш Microphones for Vocals dB Microphones for Instruments PA-type Speakers 15 SPECIFICATIONS Maximum Output Power (Both channels driven) EMX2150: 150 W/4 ohms, 0.5% THD at 1 kHz. 90 W/8 ohms, 0.3% THD at 1 kHz EMX2200: 250 W/4 ohms, 0.5% THD at 1 kHz. 160 W/8 /2300 ohms, 0.3% THD at 1 kHz Total Harmonic Distortion POWER AMP IN to SPEAKER OUT EMX2150: Less than 0.1%, 20 Hz — 20 kHz, 75 W output into 4 ohms. EMX2200: Less than 0.1%, 20 Hz — 20 kHz, 125 W output /2300 into 4 ohms. Channel Input to LINE OUT Less than 0.2%, 20 Hz — 20 kHz, +4 dB output into 10 k-ohms. Frequency Response +1, -3 dB, 20 Hz — 20 kHz, 1 W into 8 ohms (SPEAKER OUT). Hum & Noise (20 Hz — 20 kHz, Rs=150 Si, input pad @ 0 dB, input sensitivity @ -60 dB) -126 dB equivalent input noise. -62 dB residual output noise (SPEAKER OUT). -88 dB residual output noise (LINE OUT). -73 dB (77 dB S/N) at LINE OUT, Master fader maximum, all channel fiders minimum. -62 dB (66 dB S/N) at LINE OUT, Master and one channel fader maximum. -73 dB (77 dB S/N) at AUX SEND, Master fader maximum, all channel AUX controls minimum. -64 dB (68 dB S/N) at AUX SEND, Master fader and one channel AUX control maximum. Maximum Voltage Gain 90 dB CH IN to SPEAKER OUT (EMX2150) 92 dB CH IN to SPEAKER OUT (EMX2200/2300) 64 dB CH IN to LINE OUT 64 dB CH IN to AUX SEND 1—2 (+4 dB) 50 dB CH IN to AUX SEND (-10 dB) 24 dB AUX RETURN to LINE OUT 26 dB POWER AMP IN to SPEAKER OUT (EMX2150) 28 dB POWER AMP IN to SPEAKER OUT (EMX2200/ 2300) Crosstalk -60 dB at 1 kHz, adjacent channel inputs. -60 dB at 1 kHz, input to output. Input Channel Gain Control 40 dB range (-60 --20 dB), stop to stop. Input Channel Pad Switch 0/20 dB attenuation. Input Channel Eq...
Questo manuale è adatto anche per i modelli :Strumenti Musicali - EMX2200 (2.04 mb)
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