Instruction/ maintenance manual of the product 750 SWR Sound
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POWER 750 OWNER’S MANUAL SWR • CORONA, CA • USA.
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.
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.
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 = <.
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.
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.
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.
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 cabin.
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.
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.
POWER 750 • 11.
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 .
An important point after buying a device SWR Sound 750 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought SWR Sound 750 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data SWR Sound 750 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, SWR Sound 750 you will learn all the available features of the product, as well as information on its operation. The information that you get SWR Sound 750 will certainly help you make a decision on the purchase.
If you already are a holder of SWR Sound 750, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime SWR Sound 750.
However, one of the most important roles played by the user manual is to help in solving problems with SWR Sound 750. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device SWR Sound 750 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
