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Samson PL2404 Applications, Application 3 - Using The PL 2404 As A Keyboard Submixer, Samson

Models: PL2404

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Application 3 - Using The PL 2404 As A Keyboard Submixer

Applications

Application 3 - Using The PL 2404 As A Keyboard Submixer

Here, various keyboards and MIDI tone generators are connected to the channel line inputs of the PL 2404, with stereo signals routed to “matched” consecutive odd- and even-numbered inputs. Signal processors are connected to Aux sends and returns and to channel inserts as required. The Main output can then be routed to a stereo input channel of a live performance or recording mixing console, with the performer having complete control over the blend of signals being provided to the sound engineer.

L R

MIDI TONE GENERATOR

R

L

LR MIDI TONE GENERATOR

MIDI KEYBOARD

MIDI KEYBOARD

	PL 2404 24 CHANNEL PROGRAM STEREO / LINE MIXER														SAMSON
					TRS		TRS	TRS INSERT		XLR	2	1	0	-10	2	1	0	-10
POWER					STEREO INPUT		BALANCED	UNBALANCED		BALANCED		3	+4	−50		3	+4	−50
					TIP = LEFT		TIP = HI	TIP = RETURN		3 = LO
					RING = RIGHT		RING = LO	RING = SEND		2 = HI
	ON		BUS OUTPUTS		SLEEVE = COM		SLEEVE = COM	SLEEVE = COM		1 = COM
			UNBALANCED								MIC 3				MIC 1
				<75Ω+4dBu
	OFF		2	1	23	21	19	17	15	13	11	9		7	5		3	1
																		LEFT / MONO
	AVIS:																	RIGHT
	AVIS:
	RISQUE DE CHOC ELECTRIQUE
FUSE	NE PAS OUVRIR		4	3	24	22	20	18	16	14	12	10		8	6		4	2
1A/250V	DO NOT EXPOSE THIS EQUIPMENT		4	3	24	22	20	18	16	14	12	10		8	6		4	2
	TO RAIN OR MOISTURE							LINE INPUTS - BALANCED 10KΩ+4dBu
														4	3		2	1
	POWER																	INSERT
	RATING 115V - 60 Hz 25W
	CAUTION	!	R	L
	RISK OF ELECTRIC SHOCK		R	L
	DO NOT OPEN			MAIN
			BALANCED <75Ω+4dBu		4	3	2	1	4	3	2	1		4	3		2	1
					4	3	2	1	4	3	2	1		4	3		2	1
	~AC INPUT
	115V, 60Hz
	25W		R	L		BUS INSERTS				AUX RETURNS					AUX SENDS
			R	L		BUS INSERTS				AUX RETURNS					AUX SENDS
			CONTROL ROOM		UNBALANCED <75Ω +4dBu					STEREO INPUTS					UNBALANCED <75Ω +4dBu
	S/N		BALANCED <75Ω+4dBu			MIXER LINKING				UNBALANCED 10KΩ+4dBu

R L			IN
R L			IN
SIGNAL PROCESSOR

SAMSON

MPL2242

MPL2242

Ring Tip

SIGNAL PROCESSOR

25

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Samson PL2404 manual Applications, Application 3 - Using The PL 2404 As A Keyboard Submixer, Samson

Contents

Page Introduction PL 2404 Features IntroductionPL 2404 Features SAMSON Guided Tour - OverviewCHANNELS MAIN SECTIONCH 1/2 Guided Tour - ChannelsGuided Tour - Channels fully clockwise, only the even-numbered right input signal is heard panned hard right. When only the odd-numbered left input is connected, the Balance knob functions as a constant level Pan control, allowing you to continuously place the incoming signal anywhere in the left-right stereo field. For more information, see the “Using the Balance Control” section on page 18 in this manualSAMSON Guided Tour - Main Section6 Meter LEDs - These show the status of various conditions within the Guided Tour - Main SectionGuided Tour - Rear Panel 12 Aux Returns 1 - 4 - These unbalanced 1/4 inputs allow you to route Guided Tour - Rear Panel3 - SIGNAL 1 GROUND TO MIXER 2 + SIGNAL Connecting The PL 2404 - General Suggestions+ SIGNAL + SIGNALConnecting The PL 2404 - General Suggestions SLEEVE TIP RINGTIP RETURN GROUND RING SEND R L MAIN Ω+4dBuBALANCED Setting Up and Using The PLSetting the Correct Gain Structure i. If you have a microphone connected to channel 1 or channel 3, the procedure for setting optimum microphone levels is as follows sing or speak into the mic at the level you expect to use in performance while slowly raising the Level control for that channel to its 2 o’clock “0” position. Again, slowly raise the power ampli- fier volume until you reach the level you want to hear. Then raise the rear panel Trim control for that channel to a point at which you get a strong, clear signal that doesn’t distort even at the highest singing or speaking levels. For best signal-to- noise ratio, always keep the Trim control as high as possible short of distortion Setting the Correct Gain StructureGrounding Techniques Grounding Techniques If you’re using the PL 2404 in a fixed location such as a recording studio, you may want to invest the time and money into creating a star ground network. This is by far the best technique for avoiding grounding problems. It involves using a formidable ground source such as a cold water pipe or a copper spike driven into the earth. A thick grounding cable is connected to that source and then brought to a central distribution point from there, individual cables are connected to each piece of equipment. This setup also requires that you lift the ground plug of all three-prong AC connectors, so there is the possibility of danger if it is done incor- rectly. We strongly recommend that you contract with a qualified professional to carry out this or any kind of electrical workBusing, Submixing and Channel Muting L R BALANCE Using the Balance ControlHIGH 15 +15 MID 15 +15 LOW 15 +15 Using EqualizationUsing Aux Sends and Returns INSERT Using Channel InsertsUsing PFL/AFL SOLOMAIN Application 1 - Using The PL 2404 As A Recording Mixer ApplicationsApplication 2 - Using The PL 2404 As A Main Live Mixer ApplicationsSAMSON Application 3 - Using The PL 2404 As A Keyboard Submixer ApplicationsSAMSON MASTER MIXER ApplicationsSECONDARY MIXER SECONDARY MIXERAUX 3L Appendix A Block Diagram3. Maximum Gain SpecificationsDimensions WeightPhone 1-800-3-SAMSON Fax Produced by On The Right Wavelength for Samson Technologies CorpCopyright 1996, Samson Technologies Corp Printed March Samson Technologies Corp 575 Underhill Blvd P.O. Box Syosset, NY