User manual YAMAHA MX12-4

[. . . ] Clean With a Soft Dry Cloth Never use solvents such as benzine or thinner to clean the unit. Always Use the Correct Power Supply Make sure that the power supply voltage specified on the rear panel matches your local AC mains supply. Also make sure that the AC mains supply can deliver more than enough current to handle all equipment used in your system. FCC INFORMATION (U. S. A. ) 1. This product, when installed as indicated in the instructions contained in this manual, meets FCC requirements. [. . . ] When the 1 / 2 switches are on (pressed in), the signal will be sent to the GROUP buses 1/2. When the 3 / 4 switches are on (pressed in), the signal will be sent to the GROUP buses 3/4. When both switches are on, the signal will be sent to GROUP buses 1/2 and 3/4. 7 PAN (panpot) control BAL (balance) control The PAN knobs (channels 1~8) set the stereo position of the signal that is sent to the GROUP buses 1/2 or 3/4. The BAL knobs (channels 9~12) set the balance between the left/right channels, and assign the signals received at inputs 9 L (MONO) and 11 L (MONO) to the GROUP buses 1/3, and the signals received at inputs 10 R and 12 R to the GROUP buses 2/4. The meters allow you to view the L and R output levels. 10 10 10 5 0 5 0 5 0 5 0 5 0 5 5 5 5 5 3 GROUP 1~4 faders 2 ST 10 15 20 30 40 00 10 15 20 30 40 00 10 15 20 30 40 00 10 15 20 30 40 00 10 15 20 30 40 00 GROUP 1 GROUP 2 GROUP 3 GROUP 4 These faders adjust the signal levels of groups 1~4, and send their signals to GROUP OUTPUT 1~4 jacks respectively and to the ST bus. Groups 1 and 3 are sent to ST L, and groups 2 and 4 are sent to ST R. 4 Stereo graphic EQ 3 This is a stereo 7-band graphic equalizer that adjust the tonal quality of the signal output to the ST OUTPUT jacks. A ± 12dB boost or cut is provided at each of the frequency bands 125, 250, 500, 1k, 2k, 4k, and 8kHz. 5 TAPE IN jacks These are line level input jacks to which an external DAT recorder or CD player etc. Depending on the setting of the C-R· PHONES select switch (D), the signal can also be monitored directly from the C-R OUT jack. 6 REC OUT jacks These jacks allow an external DAT recorder or cassette recorder to be connected, to record the same signal as the ST OUTPUT jacks. The signals that are output from these jacks are not affected by the settings of the ST master fader or the graphic EQ. Make recording level adjustments on the recording device. 7 PHANTOM indicator This indicator will light when the PHANTOM switch (rear panel 2) is on. 8 POWER indicator This indicator will light when the MX12/4's power is on. MX12/4--Owner's Manual Master control section 5 9 ST control This knob adjusts the monitor level of the external device (tape deck etc. ) connected to the TAPE IN jacks (5). 0 DIGITAL EFFECT MONI control--This knob adjusts the level of the return signal which is sent from the internal digital effect to the MONI bus. ST control--This knob adjusts the level of the return signal which is sent from the internal digital effect to the ST bus. Effect select switches--These switches select the effect type for the internal digital effect: VOCAL, L HALL (large hall), or S HALL (small hall). Do not attempt to turn off all switches or to simultaneously press two or more switches, since this will cause malfunctions. When this is off, no signal will be sent from the internal digital effect. A RTN MONI control--This knob adjusts the level of the signal that is sent from the RTN jacks to the MONI bus. ST control--This knob adjusts the level of the signal that is sent from the RTN jacks to the ST bus. If a signal is input only to the RTN L (MONO) jack, the same signal will be sent to the ST bus L and R. B SEND MONI 1 control--This knob adjusts the level of the MONI bus signal that is output to the SEND MONI 1 jack. EFFECT/MONI 2 control--This knob adjusts the level of the EFFECT bus or MONI bus signal that is output to the SEND EFFECT/MONI 2 jack. The level of the signal that is sent from the EFFECT bus to the internal digital effect is fixed, and cannot be adjusted (nor by this control). Output select switch--This switch selects the signal that will be output to the SEND EFFECT/ MONI 2 jack. EFFECT position ( MONI 2 position ( )--The EFFECT bus signal will be output. )--The MONI bus signal will be output. C C-R·PHONES Here you can select and adjust the signal that is output to the C-R OUT jack and the PHONES jack. C-R·PHONES control-- This knob adjusts the output level to the C-R OUT jack and PHONES jack. [. . . ] Master fader at nominal level One channel fader, Gain control: maximum. Fader: nominal Control level: nominal Total harmonic distortion Hum and noise (Rs=150, 20Hz~20kHz) Maximum voltage gain Crosstalk at 1kHz Gain control Input channel equalization Meters Channel peak indicators Graphic equalizer Internal digital effect Phantom power Option Power supply/ Power consumption Dimensions (WxHxD) Weight MX12/4--Owner's Manual Input specifications 11 s Input specifications Input level Input connectors Gain trim Input impedance Nominal impedance Sensitivity1 ­90dB (24. 5µV) ­36dB (12. 3mV) ­64dB (490µV) ­10dB (245mV) ­54dB (1. 55mV) ­10dB (245mV) ­12dB (195mV) ­26dBV (50. 1mV) ­20dB (77. 5mV) Nominal level ­60dB (775µV) ­16dB (123mV) ­34dB (15. 5mV) +10dB (2. 45V) ­34dB (15. 5mV) +10dB (2. 45V) +4dB (1. 23V) ­10dBV (316mV) 0dB (775mV) Max. before clipping Connector type MIC INPUT (1-8) LINE INPUT (1-8) ST INPUT (9-12) RTN (L·R) TAPE IN (L·R) INS I/O (1-4) 1. · MAX MIN MAX MIN MAX MIN 5k 50k 10k 10k 10k 10k 50~600 mic 600 line 600 line 600 line 600 line 600 line ­40dB (7. 75mV) +4dB (1. 23V) ­14dB (155mV) +30dB (24. 5V) ­14dB (155mV) +30dB (24. 5V) +20dB (7. 75V) +18dBV (7. 75V) +20dB (7. 75V) XLR3-31 type2 2 Phone jack (TRS) Phone jack3 Phone jack3 RCA pin jack Phone jack (I/O)4 Sensitivity is the lowest level that will produce an output of +4 dB (1. 23V) or the nominal output level when the unit is set to maximum gain. [. . . ]