Speaker Cable, Speaker Fuse, Line Mains Fuse

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 18 gauge is heavier than 20 gauge, 16 gauge is better than 18 gauge, and so on.) DO NOT use instrument cables to hook up your speakers. This can result in intermittent power loss, cause the power amp to oscillate and damage itself and/or your speakers, and render the cables useless for any purpose.

SPEAKER FUSE

The speaker fuse is provided to protect your speakers in the unlikely event of a power amp failure or incorrect connection procedure. Size and rating of the fuse is 3AG, 15 amp, fast-blo. Do not defeat the purpose of this feature by using a higher rated fuse. The speaker fuses can open if there is a fault in the speaker cable or even the speakers themselves. Therefore, it is always wise to carry extra fuses at all times. Do not defeat the purpose of this feature by using a fuse of a higher amperage. It will only cause further problems if a fault lies in the system.

LINE (MAINS) FUSE

The size and rating of the Line Fuse is 3AG, 12 amp, slo-blo. It serves to protect your amplifier's power supply and transformer from large voltage spikes caused by an external source, and also serves to protect the transformer in the unlikely event of a power supply failure. NEVER replace this with a fuse of a higher rating as it will void your warranty.

A/C CORD RECEPTACLE

This receptacle accepts a standard A/C power cable (supplied with the Power 750), the same kind used with almost all current musical, profes- sional and household electronic devices. If this cable is misplaced or lost, a replacement can generally be found almost any appliance store, supermarket or the like. Make sure that the AC cord is plugged firmly into both the amplifier and the wall socket. If your cord ever becomes frayed or split, replace it IMMEDIATELY.

NOTE: The rating for the A/C cable is 3 conductor, 10 amperes MINIMUM. If replacement is necessary, or if you wish to buy a longer cable, look for the rating on the cable and be sure it is at least 10 amps.

COOLING FAN DEFEAT SWITCH

Your Power 750 features a cooling fan for protection against excessive heat. The "ON" position activates the fan in its normal operating mode. We recommend leaving the fan switch set to the "ON" position for the majority of the time that the amplifier is in operation, as continuous cooling can help extend the life of the internal components. The "DEFEAT" position removes the power source from the fan so that it will not operate. This posi- tion should be used in situations where the noise floor is so low that normal fan noise would be noticeable or distracting, such as close miking in a recording studio.

• Please note that it is normal for the cooling fan to be audible at low levels.

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 imped- ance introduces the least efficient condition possible for the unit (ie: power drawn from the outlet in relation to power produced in the speakers).

The difference in these two figures can be quite high,

Furthermore, most musical instrument amplifiers on the market today use steel for their chassis', which in most cases is considerably cheaper than aluminum and does not conduct heat as well. The Power 750 utilizes an aluminum chassis (with the exception of the chromed front panel) which is a better conductor of heat. This results in the chassis acting as a heatsink - drawing heat away from internal heat-producing components, thus extending their life. In this manner we feel we have produced a more reliable amplifier, however, at the same time, the chassis of the Power 750 will get warmer than a similar amp chassis that is made of steel.

The one condition you should be aware of is if the power amplifier in your unit becomes "over-biased." This condition can be recognized by turn- ing your amplifier on and letting it sit "idle" (without speakers plugged in and without playing it). If your unit starts getting hot under these condi- tions, it may be over-biased. This situation should be attended to and can be easily remedied in about 15 minutes by a qualified service technician. A power amp can become over-biased through continuous vibration or by any large jolt received in shipping, etc.

POWER 750 • 9

750 specifications

The SWR Sound 750 is a powerful and versatile bass amplifier that has garnered a solid reputation among musicians and sound engineers for its exceptional performance and reliability. Ideal for both live settings and studio recordings, the SWR Sound 750 blends cutting-edge technology with user-friendly design, making it a top choice for bassists of all levels.

One of the standout features of the SWR Sound 750 is its impressive power output. This amp delivers 750 watts of pure power at 4 ohms, ensuring that users can achieve a loud, punchy sound in any environment. The onboard power management system also optimizes the amplifier's performance, allowing for dynamic control and responsiveness to playing styles.

The SWR Sound 750 incorporates advanced tone-shaping technologies that enable musicians to sculpt their sound with precision. It features a 4-band EQ section, allowing for detailed adjustments to the high, mid, and low frequencies. This gives bassists the ability to enhance their tone, whether they are looking for a deep, rich low end or a bright, cutting high end. Additionally, a built-in compressor helps to smooth out the tonal inconsistencies, providing a consistent sound across various playing dynamics.

Versatility is another key characteristic of the SWR Sound 750. It includes multiple input options, catering to both active and passive bass guitars. The amp also features a balanced XLR line out for seamless integration into live sound systems, making it suitable for gigging musicians who require reliable connectivity and high-quality sound.

Durability is crucial in a performance environment, and the SWR Sound 750 is built to withstand the rigors of the road. The sturdy chassis and robust components contribute to its long-lasting performance, ensuring that it remains a reliable choice for touring musicians. Additionally, its lightweight design makes it easy to transport without sacrificing sound quality.

The SWR Sound 750 is more than just an amplifier; it is a comprehensive solution for bassists. With its powerful performance, advanced features, and rugged construction, this amplifier has established itself as a trusted choice for musicians seeking to elevate their sound in any scenario, be it on stage or in the studio. Whether you are playing in a small venue or a large concert hall, the SWR Sound 750 is designed to deliver powerful, professional-grade audio that enhances the overall performance.