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SWR Sound POWER 750 manual

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Table of contents for the manual

  • Page 1

    SWR POWER 750 POWER 750 OWNER’S MANUAL OWNER’S MANUAL SWR 8860 E. Chaparral Rd. Suite 100 Scottsdale, AZ 85250-2618 USA PHONE: (480) 596-9690 FAX: (480) 367-5262 EMAIL: custserve@fenderusa.com WEB: WWW.SWRSOUND.COM C 2002 SWR[...]

  • Page 2

    IMPORTANT SAFETY INSTRUCTIONS CAUTION: TO REDUCE RISK OF ELECTRIC SHOCK, DO NOT REMOVE THE COVER OR BACK. NO USER-SERVICEABLE PARTS INSIDE. PLEASE REFER TO A QUALIFIED SERVICE TECHNICIAN. A. Read Instructions: All safety and operation instructions should be read before the product is operated. B. Retain Instructions: The safety and operating instru[...]

  • Page 3

    INTRODUCTION INTRODUCTION Congratulations on your purchase of the SWR Power 750! You now own one of the meanest, toughest and loudest power amps ever made specifically for bass guita r. Bassists have a unique burden when it comes to powe r, because it takes considerably more power to amplify lower frequencies than it does for higher ones. That&apos[...]

  • Page 4

    SWR SWR POWER POWER 750 750 FRONT PANEL FEATURES FRONT PANEL FEATURES • Rack Handles • Volume Control • Four Segment LED Dot-Bar Display • Speaker On/Off Switch • Power On/Off Switch REAR PANEL FEATURES REAR PANEL FEATURES • Unbalanced (1/4") Input Jack • Balanced (XLR) Input Jack • Ground/Lift Switch (for Balanced XLR Input Ja[...]

  • Page 5

    POWER 750 SPECIFICATIONS POWER 750 SPECIFICATIONS The Power 750 Power Amplifier from SWR Sound Corporation is a high qualit y , all purpose power amplifie r . It uses a discreet power suppl y , quasi-complementary power amp design utilizing SIX 15 amp, 250 volt bi-polar NPN devices direct coupled to the output via an in-line speaker fuse. Note: All[...]

  • Page 6

    GETTING STARTED GETTING STARTED CONNECTING YOUR SPEAKER CABINETS CONNECTING YOUR SPEAKER CABINETS The Power 750 is a MONO amplifier. All of the speaker outputs (both 1/4" and Speakon) are in parallel, meaning that they all run off of the same mono power amplifier inside the unit. The number of speaker cabinets you use is your choice, but there[...]

  • Page 7

    TURNING THE UNIT ON TURNING THE UNIT ON Remove the AC cable from the accessory pack and connect it from the amplifier's AC receptacle to a standard wall outlet. Make sure that the Volume control is set to the minimum position. Locate the power switch on the right side of the front panel and turn the amplifier on. The LED above the power switch[...]

  • Page 8

    FRONT PANEL FEATURES FRONT PANEL FEATURES RACK HANDLES RACK HANDLES The rack handles were chosen for comfort while carrying your Power 750 from place to place. They will also protect the front panel controls in the event the unit is dropped on its face. In some types of racks, the handles may need to be removed before installation. This is easily d[...]

  • Page 9

    REAR PANEL FEATURES REAR PANEL FEATURES INPUT SECTION INPUT SECTION UNBALANCED INPUTS UNBALANCED INPUTS This is the main power amp input jack for most applications, and should connect to the "Unbalanced Output" on your preamp of choice (preferably an SWR Interstellar Overdrive or Grand Prix!). This input utilizes a standard 1/4" phon[...]

  • Page 10

    HOW IMPEDANCE AFFECTS POWER RATINGS HOW IMPEDANCE AFFECTS POWER RATINGS People often have questions about impedance. What is it? The root of the word "impedance" is the verb "impede", which means to block or resist. That's what impedance is - resistance to power. Power amps do not have a pre-determined impedance. They deliv[...]

  • Page 11

    POWER 750 POWER DELIVERY CAPABILITIES (POWER RATINGS) POWER 750 POWER DELIVERY CAPABILITIES (POWER RATINGS) After determining how the number of cabinets you wish to run affects the total operating impedance, you need to take into account the power handling capabilities of your speaker cabinets as compared to what the Power 750 can deliver at that i[...]

  • Page 12

    SPEAKON VS. 1/4" JACKS SPEAKON VS. 1/4" JACKS We have found the Speakon connection to be superior in both stability and amperage conductivity, and so we have provided Speakon output jacks in addition to the standard 1/4" jack. If using the Speakon output jack, we highly recommend the use of a Speakon-to-Speakon speaker cable, one of [...]

  • Page 13

    A FEW WORDS CONCERNING HEAT A FEW WORDS CONCERNING HEAT One of the most asked questions about our amplifiers is why they tend to get warmer than other amps. The chassis of your amplifier can get quite warm during normal usage. This is especially true if you are are driving the amplifier at its minimum impedance. This is because a 2.6 ohm impedance [...]

  • Page 14

    ELECTRICAL AND GROUNDING CONSIDERATIONS ELECTRICAL AND GROUNDING CONSIDERATIONS In a rack system with a large power amplifier such as the Power 750, placement of effects units and preamplifiers with respect to the power amplifier may be important as hum induction may occur. Generally speaking, install a preamplifier so that it is far - thest away f[...]

  • Page 15

    LIMITED WARRANTY LIMITED WARRANTY The POWER 750 from FMIC is warranted to the original consumer purchaser for TWO YEARS from the date of purchase, against defects in materials and workmanship and provided that it is purchased from an Authorized SWR Dealer. This warranty applies only to products purchased in the USA or Canada. This warranty is VOID [...]