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Mackie HD1521 Hookup Diagrams, Daisy-ChainingMULTIPLE HD1521s, HD1521: 3-WAYSYSTEM WITH POWERED SUBWOOFERS

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HD1521

Hookup Diagrams

To Next
Speaker	Left	Right
	line level	line level
	output	output

Mixer

To Next Speaker

	Daisy-Chaining MULTIPLE HD1521s
HD1521 reproduces	HD1521 reproduces
all frequencies	all frequencies
above the subwoofer’s	above the subwoofer’s
crossover point	crossover point

	Line-level			Line-level
	Hi-pass	Pole		Hi-pass	Pole
	output	Pole	Power	output	Pole	Power
	output	Mount	Power	output	Mount	Power
		Mount	Cord		Mount	Cord
			Cord			Cord
			Left
			line level	Right
			output	line level
				output
			Full	Full
			Range	Range

Power	Power
Cords	Cords
	Mixer
Powered subwoofer	Powered subwoofer
plays the low	plays the low
frequencies	frequencies

HD1521: 3-WAY SYSTEM WITH POWERED SUBWOOFERS

HD1521

Contents

HD1521 Important Safety Instructions Contents Introduction Features Hookup Diagrams 1. MAIN INPUT 2. LOOP OUT Contour EQ 3. EQ ON 4. LOW 5. MID 6. FREQ 7. HIGH 11. SIG/LIMIT LED 8. LEVEL 9. POWER LIGHT ON 10. THERMAL LED Placement Room Acoustics Rigging Rigging Design Practices 12 Fly Points Rigging Hardware and Accessories Rigging Notes Thermal Considerations AC Power Care and Maintenance Information Troubleshooting No power No sound Poor bass performance Appendix B: Connections “XLR” Connectors XLR Appendix C: Technical Information HD1521 Specifications Acoustic Performance: Power Amplifiers Equalization HD1521 Block Diagram HD1521 Frequency Response On-Axis HD1521 Dimensions Mackie Limited Warranty Need help with your new powered loudspeaker