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SWR 750 manual

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Table of contents for the manual

  • Page 1

    POWER 750 OWNER’S MANUAL SWR • CORONA, CA • USA[...]

  • Page 2

    2 • POWER 750 IMPORT ANT SAFETY INSTRUCTIONS CAUTION: TO REDUCE RISK OF ELECTRIC SHOCK, DO NOT REMOVE THE CO VER OR BAC K. NO USER-SERVICEABLE P AR TS 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[...]

  • Page 3

    POWER 750 • 3 INTRODUCTION Congratulations on your purchase of the SWR P ower 750! Y ou now own one of the meanest, toughest and loudest power amps ever made specifi- cally for bass guitar. Bassists have a unique burden when it comes to power , because it takes considerably more power to amplify lower frequencies than it does for higher ones. Tha[...]

  • Page 4

    4 • POWER 750 750 W atts @ 4 ohms 450 W atts @ 8 ohms (minimum load = 2.6 ohms) INPUT IMPEDANCE: Balanced = 1 0K ohms Unbalanced = 33K ohms OUTPUT IMPEDANCE: Slave Output = 1 00 ohms SENSITIVITY : 1 .582 VRMS LOAD CAP ABILITY : 2.6 ohms to infinity NOISE: Residual = <.00072 volts (720 millivolts) Signal to noise ratio = <-1 00 dB DISTORTION[...]

  • Page 5

    POWER 750 • 5 USING TWO SPEAKER CABINETS Connect the speaker cables of your choice (1/4" or Speakon) from the speaker out jacks on your Power 750 to the inputs on speaker cabinets. Can you use one 1/4" output jack and a Speakon output jack at the same time? Y es. Remember , all of the Speaker Outputs are comi ng off of the same mono pow[...]

  • Page 6

    6 • POWER 750 FRONT P ANEL FEA TURES RACK HANDLES The rack handles were chosen for comfort while carr ying 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 done by remov- i[...]

  • Page 7

    POWER 750 • 7 GROUND LIFT A ground lift is provided for the Balanced Inputs. In the normal (out) position of the push switch, Pin 1 on the XLR connector is grounded. In the Lift (in) position, the ground on Pin 1 is disconnected. When using the Balanced Inputs, always be aware of the position of the ground lift switch. This function only affects [...]

  • Page 8

    8 • POWER 750 Here's another formula: T o figure out the total impedance of two or more cabinets of equal value hooked up in parallel, divide the impedance of one cabinet by the number of cabinets: Impedance of one cabinet / number of cabinets = total impedance (F or an even more in-depth discussion of impedance and power rating issues, go t[...]

  • Page 9

    POWER 750 • 9 SPEAKER CABLE The speaker cable you use to connect your SWR system should be made of at least 18 gauge wire, and heavier if possible. (The thicker the wire, the lower the gauge, so 1 8 gauge is heavier than 20 gauge, 1 6 gauge is better than 1 8 gauge, and so on.) DO NOT use instrument cables to hook up your speakers. This can resul[...]

  • Page 10

    10 • POWER 750 RACK MOUNTING INSTRUCTIONS T o preserve the beauty and reliability of your amplifier, we recommend that you install your amplifier in a rack case. The Pow er 750 is completely ready to be rack mounted and needs no additional parts or accessories other than the rack screws and the case itself. The Power 750 takes up three full rack [...]

  • Page 11

    POWER 750 • 11[...]

  • Page 12

    POWER 750 LIMITED WARRANTY The POWER 750 fr om SWR is war ranted to the original consumer pur chaser for TWO YEARS from the date of pur chase against defects in materials and workmanship, pr ovided that it is pur - chased fr om an Authorized SWR dealer . This war ranty applies only to pr oducts pur chased in the USA or Canada. This war ranty is VOI[...]