How to get a good mix, Recording Level Setting

How to get a good mix

Before connecting other equipment to the Powered mixer, check the impedance and level of both. If the impedances and levels do not match, mixing will be very difficult and the S/N ratio will also be adversely affected.

Each input channel of the MCX-106 is provided with a TRIM control. Thorough understanding of the function of a TRIM control will make mixing easier.

The function of the TRIM control is to control the negative feedback volume of the head-amp so that the gain of the head-amp can also be changed. Because of this, enough dynamic range, even for high level signals is ensured. Also, the S/N ratio will be better by decreasing the gain of the head-amp.

For example, a keyboard, a musical instrument and a dynamic microphone with output levels of —l0dBm, -20dBm and -40dBm respectively are connected to the MCX-106.

If the trim control is set as shown in the left figure, the input level controls can be set to the same position.

The input level controls are used in general between 6 and

The peak indicator LED illuminates if the head amplifier or equalizer is clipping. The gain of the head-amplifier

must be decreased by turning the trim control counter- clockwise.

Key Board in	Musical Instrument in	Dynamic
—l0dBm level	—20dBm level	Microphone in
		-40dBm level

Fault Protection Table

Fault	Protection	Indication	Action	Restoration
Excessive current due to	Current limiter activates at	Compressor	Remove excessive lords.	Automatic restoration
overloads.	less than 1 ohm.	LED illuminates.	Minimum speaker loads 2-	after normal loads are
			ohm.	obtained.
Short circuits	Current limiter activates,	Amp protection	Check speaker	Turn off power switch.
(less than 0.4-ohm)	input signal is lowered,	LED illuminates.	lines/systems for shorts.	Turn on into operational
	unit shuts down.			loads.
Temperature rise of heat	Input signal is lowered.	Amp protection	Check for adequate	Automatic restoration
sink	Unit shuts down.	LED illuminates.	ventilation.	after temperature
(more than 105°C)				lowers (to 75° - 95°C)
	Input signal is lowered.	Amp protection	Refer to qualified service	Automatic restoration
DC drift	Unit shuts down.	LED illuminates.	personnel.	after normal bias is
				regained.

Recording Level Setting

The following procedures are recommended for an accurate and high-quality recording.

1.Place the level meter selection switch in the "Tape" position.

2.Engage the noise reduction circuitry by pressing the dbx switch.

NOTE:

Using the internal dbx circuitry will provide higher quality recordings with excellent "signal-to-noise" characteristics. You will notice a drastic reduction in audible "tape hiss" and a significant increase in dynamic range. However, the dbx noise reduction is

an "encode/decode" process, meaning that any tape that is recorded with dbx must also be played back with dbx, to obtain satisfactory results . If the recording must be played on other equipment without dbx circuitry, we recommend that the dbx feature not be used.

3.Press the record b u t t o n to place the deck in "record pause" mode.

4.Adjust the L and R master recording level sliders to

a level j u s t below the "red" in the bargraph meters.

5. Press PLAY b u t t o n to begin recording .

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