EAW Loudspeaker's owner manual Xiv

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Section	9	Signal Processing	12
	9.1	Digital Signal Processor	12
	9.2	Unpowered Loudspeakers	12
	9.2.1	Single-Amplified Mode	12
	9.2.2	Multi-Amplified Mode	13
	9.3	Subwoofer Signal Processing	13
	9.4	Unpowered Loudspeakers - Limiters	14
	9.4.1	Limiters and Limiting	14
	9.4.2	MX8750 Limiter Design	14
	9.4.3	MX8750 Output Limiter Wizard	14
Section	9.5	Powered Loudspeakers	15
	9.5.1	External Processing	15
	9.5.2	Limiters	15
Section	10	Operating the Loudspeaker	15
	10.1	Operating Limits	15
	10.1.1	Operator Responsibility - Preventing Damage	15
	10.1.2	Loudspeaker Limits - Preventing Damage	15
	10.2	Acoustic Level Precautions	15
	10.2.1	Operating Levels	16
	10.3	Testing and Test Signals	16
	10.4	Measurements	17
	10.5	Operating Tips to Help Avoid Loudspeaker Damage	17
Section	11	Inspection and Maintenance	17
	11.1	Periodic Inspection	18
	11.1.1	Overall Physical Inspection	18
	11.1.2	Rigging Inspection	18
	11.2	Periodic Performance Testing	19
	11.3	Periodic Maintenance	19
	11.3.1	Periodic Acoustical Maintenance	19
	11.3.2	Routine Maintenance	19
	11.3.3	Cosmetic Maintenance	20
	11.3.4	Long Term Maintenance	20
Section	12	Troubleshooting	21
	12.1	Rigging Problems	21
	12.2	Enclosure and Integral Hardware	21
	12.3	Cosmetics	21
	12.4	Isolating Sonic Problems	21
	12.4.1	What Is Involved	21
	12.4.2	Drivers	22
	12.4.3	Input Panel and Wiring	22
	12.4.4	Crossovers	22
	12.4.5	Enclosure and Integral Hardware	22
	12.5	Problem Symptoms	22
	12.5.1	No Sound or Low Output	23
	12.5.2	Distorted Sound	23
	12.5.3	Partial Sound (Some Frequency Bands Missing)	23
	12.5.4	Powered Loudspeaker Electronics	23
Section	13	Contacting EAW	24
	13.1	Operating Questions	24
	13.2	Service Information	24
	13.3	Internal Information	24
Section	14	Warranty	25

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Contents W L O U D S P E a K E R O W N E R ’ S M a N U a L Important Safety Precautions -Read This First Iii Consignes DE Sécurité À Lire EN Premier Precauzioni DI Sicurezza DA Leggere PER Primo Page Precauciones DE Seuridad LEA Esto Primero ViiSicherheitshinweise Zuerst Lesen ViiiPage C D e c l a r a t i o n o f C o n f o r m i t y I g g i n g M o u n t i n g / S u s p e n s i o nPage U r c h a s e r a n d U s e r R e s p o n s i b i l i t y XiiContents Xiv H i p p i n g D a m a g e SectionRigging / Mounting / Suspension E t u r n i n g P r o d u c t t o E AWE f i n i t i o n s I g g i n g I n f o r m a t i o nPage Wo r k i n g L o a d L i m i t s I g g i n g D e s i g n P r a c t i c e s Rigging DesignE s i g n Fa c t o r I g g i n g H a r d w a r e a n d a c c e s s o r i e sO w e r R a t i n g s Amplifier Power RequirementsE l e c t i n g a n a m p l i f i e r M b i e n t Te m p e r a t u r e s Locating the LoudspeakerR e v e n t i n g L o u d s p e a k e r D a m a g e Te m p e r a t u r e C h a n g e sI g n a l L e v e l s E a t S i n k Ve n t i l a t i o nT a g e M o n i t o r a p p l i c a t i o n s Signal Connections E u t r i k N L a n d C a n n o n a P C o n n e c t o r sTw o C o n n e c t o r s O u d s p e a k e r W i r e G a u g eO o p o r T h r u C o n n e c t o r Typical XLR-3 Input and Loop Through ConnectorsN p u t C o n n e c t i o n N p u t C a b l e Signal ProcessingN p o w e r e d L o u d s p e a k e r s I n g l e a m p l i f i e d M o d eU b w o o f e r S i g n a l P r o c e s s i n g U l t i a m p l i f i e d M o d eX 8 7 5 0 L i m i t e r D e s i g n N p o w e r e d L o u d s p e a k e r s L i m i t e r sI m i t e r s a n d L i m i t i n g X 8 7 5 0 O u t p u t L i m i t e r W i z a r dC o u s t i c L e v e l P r e c a u t i o n s Operating the LoudspeakerP e r a t i n g L i m i t s I m i t e r sTe s t i n g a n d Te s t S i g n a l s P e r a t i n g L e v e l sInspection and Maintenance E a s u r e m e n t sI g g i n g I n s p e c t i o n E r i o d i c I n s p e c t i o nV e r a l l P h y s i c a l I n s p e c t i o n E r i o d i c a c o u s t i c a l M a i n t e n a n c e E r i o d i c P e r f o r m a n c e Te s t i n gE r i o d i c M a i n t e n a n c e O u t i n e M a i n t e n a n c eO s m e t i c M a i n t e n a n c e O n g Te r m M a i n t e n a n c eN c l o s u r e a n d I n t e g r a l H a r d w a r e TroubleshootingI g g i n g P r o b l e m s O s m e t i c sN p u t P a n e l a n d W i r i n g R o b l e m S y m p t o m sR i v e r s R o s s o v e r sO w e r e d L o u d s p e a k e r E l e c t r o n i c s O S o u n d o r L o w O u t p u tI s t o r t e d S o u n d Contacting EAW P e r a t i n g Q u e s t i o n sSection PN 425017 E DEC05