Carvin CX630 Instruction Manual - Page 4

TO INTERNAL REVERB TANK 1155 Industrial Ave. Escondido, CA 92029 619-747-1710 FAX 747-9065 CX 630 & CX420 BLOCK DIAGRAM P tN EFFECTS SEND MAIN LINE OUT TO INTERNAL POWER AMP EFFECTS SEND GAIN STAGE NINE BAND GRAPHIC EQUILIZER EFFECTS SEND LEVEL MONITOR LINE OUT LEFT TAPE OUT LEFT AMP PATCH MONITOR SUMMING AMP EFFECTS SUMMING AMP MAIN LEFT SUMMING AMP AND LEVEL 6. CHANNEL EFFECTS/REVERB LEVEL CONTROL The EFF/REV level control adjusts the volume of the channel going to the effects send master control, and the internal reverb tank. The effects control is post channel level. This means adjustments in the channel's EQ or level con- trols will be affecting the effects send of that chan- nel. 1 7-9. CHANNEL TONE CONTROLS Each channel features three tone controls LO, MID, 9 and HI. The LO and HI controls are shelving type HI 3 0 3 6 6 9 9 12 12 tone controls with corner frequencies at 100Hz and 10KHz respectively. The shelving means, the for the LO control, all frequencies from 100Hz down to 8 the lowest frequency the mixer can handle are all boosted when the knob is turned clockwise and cut when turned counter-clockwise from the center position. For the HI control the shelving means all 7 the frequencies from 10kHz and up to the upper limit of the mixer are all boosted when the knob is turned clockwise and cut when turned counter- clockwise from the center position. The MID control 6 is a band pass type of tone control with the center frequency set at 1.5KHz. The band pass means a MID 3 0 3 6 6 9 9 12 12 LOW 3 0 3 6 6 9 9 12 12 EFF REV3 4 5 6 7 2 8 1 9 0 10 middle section of frequences centered around 1.5kHz, but not over lapping the HI and LO controls, is boosted when the knob is turned clockwise and cut when turned counter-clockwise from the center position. Familarity with the channel tone controls: The three tone controls can add brightness, clairity, and control to the channel's input signal. Here are some tonal references for these tone controls. • LO affects the deep low bass tones and the typical bass tones. • MID affects all the middle frequencies where the clairty of an average persons spoken voice is mostly heard. Also the MID incompases the louder sometimes harsher tones that can distort the over all sound of the system. • HI affects the treble tones and very high treble tones bringing brightness and brillance to the channel's input. Adjusting: Use these controls to change the tonal shape of the input signal and in many cases to reduce possible feedback from microphones near the mixer's output speakers. It is suggested the channel tone controls start out in their center detent position where they do not effect the original incoming signal. Then, if needed, turn the tone controls (boost,turn to the right, or cut, turn to the left) to change the sound. MAIN MON EFF CHANNEL MONITOR LEVEL REV. TO MONITOR CHANNEL LEVEL CHANNEL EFF SND THREE BAND CHANNEL TONE CONTROLS HI MID LOW CHANNEL RETURN FOR INTERNAL REVERB TANK TAPE RTN EFF INPUT -20dB PAD SWITCH MIC PRE PAD line pad (-26dB) 15 4