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owner’s manual
(PRELIMINARY COPY)
X-VCA mixing consoles
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X-VCA block diagram X-VCA owner’s manual AFL MODE X-VCA MONO INPUT MONO L-R X-VCA GROUP OUTPUT (24 TO 48 FITTED) RIBBON (1 OF 8 SHOWN) GROUP +48V SOLO LEFT PRE-FADER SOLO CONTROL CABLE GROUP PAN & SWITCHING INTER- BUS ASSIGN SOLO RIGHT SWITCHES CONNECT 3 1 VCA SUB-CARD POST-PAN SOLO L - R VCA 26dB LEVEL LEVEL LEVEL LEVEL ASSIGN GROUP XFORMER PAD MIX AMP FREQ FREQ FREQ FREQ VCA INSERT OPTION GRP GROUP INSERT Q Q Q Q BAL OUT ON BALANCED GAIN HPF GRP SEND RTN GROUP 3 - 0.7 3 - 0.7 3 - 0.7 3 -
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table of contents mono input module p. 7 1 Mic and line inputs stereo input module p. 27 2 Line inputs and stereo returns group module p. 43 3 VCA groups, audio groups, dynamics, matrix and Aux masters left, right & mono p. 59 4 masters master control section p. 71 5 microprocessor control p.89 6 vca facilities p. 107 7 solo/vca edit switch p. 129 8 dynamics control p. 131 9 power supply p. 139 0
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how to use this manual format This manual uses a format that is intended to be easy to read, yet technical for those who need to know all the details. For feature descriptions, this is done by devoting the left side of each page to 1) an overall module picture, 2) a block diagram, and 3) a con- trol closeup.These images all pertain to the features and control descriptions on the right side of the page.Also, for certain features like the micro processor system and the solo system that appear over
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mono input module X-VCA owner’s manual 1 panel module block diagram +48V PAD LINE Ø GAIN 30 40 20 50 12 72 + 48V AUX 10 – 1 20 0 + 3 30 40 • 6 10 – 2 0 20 + 3 30 PAD 40 6 • PRE 10 – 3 0 20 + LINE 3 30 40 • 6 10 – 4 20 0 + 3 30 40 6 • Ø PRE 5 6 - 12 – 6 0 GAIN + 20 30 3 40 40 6 • 7 6 - 12 – 8 20 0 + 20 50 3 40 6 • PRE 12 72 1.5 HF Q .7 3 SHELF 6K 3K 12K 1.5 18K 20K 1K 1.5 HM Q 3 .7 2K 4K 1K 6K 400 8K 1.5 LM Q 3 .7 500 1K 200 1.5 100 2K 1.5 LF Q .7 3 SHELF 200 400 100 600 40 800 – + EQ ON FREQ 80
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mono input module 1 features phantom power +48V The 48V switch should not be engaged when 48 volts DC is applied to pins 2 and 3 on the mic-input XLR connector. This using standard (dynamic) option is used with condenser microphones and active direct boxes that require microphones, or other an external DC voltage (phantom power) in order to operate. sources that do not use phantom power. pad The mic-input signal is attenuated by 20dB to prevent some signals (e.g. kick drum or lead vocal) from o
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mono input module X-VCA owner’s manual 1 panel module block diagram +48V PAD LINE Ø GAIN 30 40 20 50 12 72 + 48V AUX 10 – 1 20 0 + 3 30 40 • 6 10 – 2 0 20 + 3 30 PAD 40 6 • PRE 10 – 3 0 20 + LINE 3 30 40 • 6 10 – 4 20 0 + 3 30 40 6 • Ø PRE 5 6 - 12 – 6 0 GAIN + 20 30 3 40 40 6 • 7 6 - 12 – 8 20 0 + 20 50 3 40 6 • PRE 12 72 1.5 HF Q .7 3 SHELF 6K 3K 12K 1.5 18K 20K 1K 1.5 HM Q 3 .7 2K 4K 1K 6K 400 8K 1.5 LM Q 3 .7 500 1K 200 1.5 100 2K 1.5 LF Q .7 3 SHELF 200 400 100 600 40 800 – + EQ ON FREQ 80
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mono input module 1 features If the channel peak gain LED is illuminated, first try lowering The Input gain control range is closely related to the status of the PAD switch and the input gain control. the LINE switch. In order to establish proper gain structure in the console, input Only when this method is gain settings must be set correctly. unsuccessful should the pad switch be engaged. LINE—switch-up PAD—switch-up 15 to 75dB of gain can be added the mic-input signal. The impedance at th
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mono input module X-VCA owner’s manual 1 panel block diagram module AUX 10 – 1 +48V 0 20 + PAD LINE 3 30 Ø GAIN 30 40 40 20 6 50 • 12 72 10 – 2 AUX 10 – 1 20 0 + 0 3 30 20 + 40 • 6 10 – 2 0 20 3 + 30 3 30 40 6 • 40 PRE 6 • 10 – 3 0 20 + 3 30 40 • 6 10 – 4 PRE 20 0 + 3 30 40 6 • 10 – 3 PRE 0 5 6 20 - + 12 – 6 0 + 20 3 3 40 30 6 • 7 6 - 12 – 8 0 40 + 20 6 3 • 40 6 • 10 – 4 PRE 0 1.5 HF 20 Q + .7 3 3 SHELF 6K 30 3K 12K 1.5 18K 40 20K 6 1K • 1.5 HM Q 3 .7 2K PRE 4K 1K 6K 5 400 8K 6 - 1.5 LM Q 12 –
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mono input module 1 aux send features Eight auxiliary sends are available for creating individual output mixes. These can It's typical to be used to drive effects processors, provide monitor mixes, create broadcast or make Aux sends alternate sound reinforcement mixes, or for other special requirements. Each pair Post fader when driving effects, and Pre fader when of odd/even Aux buses (1&2, 3&4, etc.) can be treated as individual discrete mono mixing for monitors. sends, or as stereo pairs. Dis
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mono input module X-VCA owner’s manual 1 panel module block diagram +48V 1.5 PAD HF LINE Q Ø GAIN 30 40 20 50 .7 12 72 3 AUX 10 – 1 SHELF 20 0 + 3 30 6K 40 • 6 3K 10 – 2 12K 0 20 + 3 30 40 6 • PRE 1.5 10 – 3 18K 0 20 + 3 30 40 • 6 1K 20K 10 – 4 20 0 + 3 30 1.5 40 6 HM • Q PRE 5 6 - 12 – 6 0 + 20 3 40 6 • 7 6 - 12 – 8 3 .7 0 + 20 3 2K 40 6 • 4K 1K PRE 1.5 HF Q 6K .7 3 SHELF 6K 3K 12K 1.5 18K 20K 1K 400 8K 1.5 HM Q 1.5 LM 3 .7 2K Q 4K 1K 6K 400 8K 1.5 LM Q 3 .7 3 .7 500 1K 200 500 1.5 1K 100 2K 1
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mono input module 1 EQ features Many audio signals coming into the console require some degree of corrective eq in order to be part of a good sounding mix.The X-VCA offers an uncompro- mised, full parametric EQ on each channel. The input EQ consists of four full parametric bands: high, high-mid, low-mid, and low. The high and low bands are independently switchable for either adjustable bandwidth or shelving mode. All bands offer a generous overlap of adjacent oper- ating frequencies. An independ
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mono input module X-VCA owner’s manual 1 panel module block diagram .7 +48V 3 SHELF PAD LINE 200 400 Ø GAIN 30 40 100 20 50 12 72 600 AUX 10 – 1 20 0 + 3 30 40 • 6 10 – 2 40 800 0 20 + 3 30 – + 40 6 • EQ PRE 10 – 3 ON 0 20 + 3 FREQ 30 40 • 6 10 – 4 20 0 + 80 3 30 200 40 6 • PRE 40 5 6 - 12 – 6 0 + 20 3 40 6 • 7 20 400 6 - 12 – 8 0 + 20 3 40 6 • HPF PRE 1.5 HF Q .7 3 SHELF 6K INSERT 3K 12K ON 1.5 18K 20K 1K 1.5 HM C Q PAN 3 .7 2K 4K 1K 6K 400 8K 1.5 LM Q 3 .7 500 1K 200 1.5 100 2K 1.5 LF Q .7 3
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mono input module 1 high-pass filter—HPF Proper use of the high-pass filter reduces or eliminates unwanted low frequencies without substantially affecting the program material. Quite often such unwanted Many microphones low frequencies are included with in-coming mic- or line-input signals. For exam- have a built-in switch- ple, stage rumble or wind can be picked up through vocal mics.The slope of the able high-pass filter. high-pass filter is 12dB per octave. HPF High-pass filter is on. HPF—
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mono input module X-VCA owner’s manual 1 panel module block diagram 600 +48V 40 800 PAD – + LINE EQ Ø GAIN ON 30 40 20 FREQ 50 12 72 AUX 10 – 1 20 0 + 80 3 30 200 40 • 6 10 – 2 0 20 + 40 3 30 40 6 • PRE 10 – 3 20 400 0 20 + 3 30 40 • 6 10 – 4 20 0 HPF + 3 30 40 6 • PRE 5 6 - 12 – 6 0 INSERT + 20 3 ON 40 6 • 7 6 - 12 – 8 0 + 20 C PAN 3 40 6 • PRE 1.5 HF Q .7 3 SHELF 6K 3K 12K ODD - LR - EVEN 1.5 18K 20K SAFE 1K 1.5 HM PREVIEW Q 3 .7 2K 4K 1K 6K 400 8K 1.5 LM Q 3 .7 500 1K 200 1.5 100 2K 1.5 LF Q
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mono input module 1 Insert features Insert ON switch The Insert point is located after the EQ and before the Low Pass Filter. External signal processors can be inserted into the channel via 1/4" TRS connectors (send and return) on the rear panel.The SEND signal is unbal- anced and the RETURN can accept both unbalanced and balanced signals. If you are using a something like an external tube mic preamp, Insert is switched OUT.Any signal coming into the Insert RETURN you can bypass the chan- jack
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mono input module X-VCA owner’s manual 1 panel module block diagram PK +48V +8 0 PAD – 6 LINE 10 SIG Ø GAIN 30 40 20 50 12 72 LCR AUX 10 – 1 20 0 5 + 3 30 40 • 6 10 – 2 0 20 + M 3 30 40 6 • PRE 0 10 – 3 - 0 L R 20 + 3 30 40 • 6 PAN ON 10 – 4 20 0 + 3 30 40 6 • 5 PRE 5 GROUPS 6 - 12 – 6 0 + 20 3 1 40 6 • 7 6 - 12 – 8 0 + 20 3 10 40 2 6 • PRE 1.5 HF Q 3 .7 3 SHELF 15 6K 3K 12K 1.5 18K 4 20K 1K 1.5 HM 20 Q 3 .7 5 2K 4K 1K 6K 400 8K 30 1.5 LM 6 Q 3 .7 500 1K 40 200 7 1.5 100 2K 1.5 50 LF Q 8 .7 3 S
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mono input module 1 level meter features level meter LED LED LED LED LED Each input includes a five-segment LED meter for visu- ally monitoring signal levels.This is essential for setting up and maintaining proper Occasional flashing of the ® peak LED is acceptable, gain structure. but frequent flashes indi- cate that channel levels peak indicator—PK must be lowered. LED The input signal is monitored at several points throughout the channel. These points are the mic preamp, the EQ stage and the
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mono input module X-VCA owner’s manual 1 panel module block diagram +48V PAD C PAN LINE Ø GAIN 30 40 20 50 12 72 AUX 10 – 1 - - 20 0 ODD LR EVEN + 3 30 40 • 6 SAFE 10 – 2 0 20 + PREVIEW 3 30 40 6 • PRE 10 – 3 0 MUTE 20 + 3 30 40 • 6 10 – 4 20 0 + 3 30 40 6 • PRE 5 6 - 12 – 6 0 + 20 3 40 6 • 7 6 - 12 – 8 0 + 20 3 40 6 • PK PRE +8 1.5 HF 0 Q –6 .7 3 SHELF 10 6K SIG 3K 12K 1.5 18K 20K 1K 1.5 HM Q LCR 5 3 .7 2K 4K 1K 6K M 400 8K 1.5 LM Q 0 3 .7 - L R 500 1K 200 1.5 PAN ON 100 2K 1.5 LF Q .7 5 3 SH
