SRM1801 18” Powered Subwoofer OWNER’S MANUAL
Important Safety Instructions 1. 2. 3. 4. 5. 6. 7. Read these instructions. Keep these instructions. Heed all warnings. Follow all instructions. Do not use this apparatus near water. Clean only with a dry cloth. Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions. 8. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat. 9.
CONTENTS What? Me read a manual? SAFETY INSTRUCTIONS............................................ 2 GETTING STARTED.................................................... 4 INTRODUCTION....................................................... 5 HOOKUP DIAGRAMS............................................... 6 MACKIE SRM1801 FEATURES .................................. 8 1. IEC AC RECEPTACLE AND FUSE...................... 8 2. POWER . .................................................... 8 3. INPUTS................
Getting Started The following steps will help you set up your subwoofer(s) quickly. INITIAL SETTINGS: 1. Turn the LEVEL control on the rear panel all the way down. 2. Turn the POWER switch OFF. CONNECTIONS: 1. Connect the line-level signal from a mixer (or other signal source) to the INPUT jack on the SRM1801 rear panel (XLR connector). If you are operating the system in stereo, connect INPUT B, as well. 2. Connect the supplied AC power cord to the IEC socket on the back of the subwoofer.
Introduction Thank you for choosing the Mackie SRM1801 subwoofer. Mackie’s SRM Series powered loudspeakers achieve the perfect balance of power, portability, and sound quality. Designed by the same team that produced the best-selling Mackie SRM450v2, the SRM1801 delivers real power in a design that is extremely lightweight and portable.
Hookup Diagrams Main PA System with one subwoofer and two powered loudspeakers Left and Right Main Powered Loudspeakers (Mackie SRM450v2 shown) 1 High Pass Output 2 3 4 5/6 7/8 9/10 11/12 From Mixer Left and Right Outputs MON MAIN Mixing Console (Mackie ProFX12 shown) The left and right line-level outputs from a mixer feed the inputs of the Mackie SRM1801 powered subwoofer.
Daisy-chaining two subwoofers SRM1801 Subwoofer 2 SRM1801 Subwoofer 1 Mixing Console (Mackie 1604-VLZ3 shown) Full-Range Output From Mixer Output The left and right line-level outputs from a mixer feed the left and right inputs of the first Mackie SRM1801 powered subwoofer. The inputs are summed in mono to play in the subwoofer, but this does not affect the full-range or high-pass outputs, which remain fully stereo.
Mackie SRM1801 Features 8 9 10 11 THERMAL 7 6 OL SIGNAL POWER LEVEL - 6dB OUTPUTS A HIGH PASS B A FULL RANGE B 5 +6dB POL ARITY 4 NORMAL INVERT A INPUTS 18-INCH POWERED SOUND REINFORCEMENT SUBWOOFER B 3 WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE. DO NOT REMOVE COVER. NO USER SERVICEABLE AVIS: RISQUE DE CHOC ELECTRIQUE — NE PAS OUVRIR PARTS INSIDE. REFER SERVICING TO QUALIFIED PERSONNEL.
8 THERMAL 9 10 11 OL SIGNAL POWER LEVEL OUTPUTS A HIGH PASS B 7 5 - 6dB 6 +6dB POL ARITY A FULL RANGE B NORMAL INVERT 4 A INPUTS 18-INCH POWERED SOUND REINFORC B 3 3. INPUTS 5. HIGH PASS OUTPUTS Balanced XLR female connectors are provided for the left and right inputs. Connect the full-range line-level signal from the mixer or other signal source to these input jacks. Balanced XLR male connectors are provided for the line-level A and B high-pass outputs.
8 THERMAL 9 10 11 OL SIGNAL POWER LEVEL OUTPUTS A HIGH PASS B 7 5 - 6dB 6 +6dB POL ARITY A FULL RANGE B NORMAL INVERT 4 A INPUTS 18-INCH POWERED SOUND REINFORC B 3 7. LEVEL 9. OL LED The LEVEL control adjusts the overall signal level at the input to the built-in power amplifier. It ranges from -6 dB to +6 dB (maximum gain), with unity gain at the center position (12 o’clock). The OL (overload) indicator lights when the amplifier in the SRM1801 is near the clipping point.
The Ins and Outs of Polarity Mackie’s SRM1801 subwoofer includes a switch that allows you to quickly invert the polarity of the subwoofer’s output relative to the input signal it is receiving from the mixer or other sound source. But what exactly does that mean? A subwoofer works by literally pumping air as the woofer cone moves in and out with respect to the cabinet in which it is housed. It does so according to the low-frequency portion of the signal it receives from the sound source.
Protection Circuits Placement There are several protection mechanisms designed into the SRM1801 to safeguard the subwoofers and amplifiers from inadvertent damage. The SRM1801 subwoofer is designed to sit on the floor or stage. It is not designed to be pole-mounted or suspended. CAUTION: The protection circuits are designed to protect the subwoofers under reasonable and sensible conditions. Should you choose to ignore the warning signs (i.e.
Appendix A: Service Information If you think your Mackie product has a problem, please check out the following troubleshooting tips and do your best to confirm the problem. Visit the Support section of our website (www.mackie.com/support) to get some ideas or contact our technical support heroes. You may find the answer to the problem without having to send your Mackie product away. If two fuses blow in a row, then something is very wrong. Try a different outlet in a totally different location.
Noise/Hum • Check the signal cable between the mixer and the subwoofer. Make sure all connections are secure. These problems usually produce crackling noises or hum. • If you are using two or more SRM1801 powered subwoofers, try plugging them all into the same AC outlet panel or outlet strip. The purpose for this is to connect them all to the same earth ground point and reduce the possibility of creating a ground loop.
Appendix B: Connections XLR Connectors The SRM1801 has two female XLR input jacks that accept balanced line-level signals. When connecting a balanced signal, be sure it’s wired per AES (Audio Engineering Society) standards: Balanced XLR Connectors There is a limit to how many you can daisy-chain together. A general rule is to maintain a load impedance ten times or more than the source impedance to prevent excessive loading on the source.
Appendix C: SRM1801 Specifications Acoustic Performance AC Power Requirements Frequency Range (–10 dB): 35 Hz – 150 Hz US: 100-120 VAC, 50-60 Hz Frequency Response (–3 dB): 50 Hz – 115 Hz Fuse: T 6.3A H 250V 1 Max peak SPL (calculated) : 129 dB Europe: 220-240 VAC, 50-60 Hz Max peak SPL (measured) : 124 dB Fuse: T 3.
SRM1801 Dimensions 15.1 in / 383 mm WEIGHT 73 lb 33.1 kg 25.3 in / 643 mm 24.1 in / 612 mm 20.
Mackie Limited Warranty Please keep your sales receipt in a safe place. This Limited Product Warranty (“Product Warranty”) is provided by LOUD Technologies Inc. (“LOUD”) and is applicable to products purchased in the United States or Canada through a LOUD-authorized reseller or dealer. The Product Warranty will not extend to anyone other than the original purchaser of the product (hereinafter, “Customer,” “you” or “your”). For products purchased outside the U.S. or Canada, please visit www.mackie.
16220 Wood-Red Road NE • Woodinville, WA 98072 • USA United States and Canada: 800.898.3211 Europe, Asia, Central and South America: 425.487.4333 Middle East and Africa: 31.20.654.4000 Fax: 425.487.4337 • www.mackie.com E-mail: sales@mackie.
