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Resumen del manual
And, of course, each 750x is assembled by hand and individually sound-tested in the USA at our factory in Southern California. It’s all part of SWR’s commitment to continued improvement and refinement of even our most popular models, so that we can continue to assist today’s bassist in the pursuit of the ultimate goal: finding equipment that not only does the job, but actually enhances the overall musical experience and contributes to the creative process. Everyone here at SWR sincerely hopes that the purchase of your 750x helps you get there from here… and beyond. Please take the time to read your Owner’s Manual thoroughly and completely, so that you can realize the full potential of your new 750x Bass Amplifier. Once again, thanks for your purchase, and for letting SWR help Amplify Your Future.™ Sincerely, SWR Note: Please take a moment to verify that the following items were included in your SWR 750x packaging: AC Cable, 750x Effects Activator Dual Footswitch, SWR Catalog. 750x OWNER’S MANUAL • 1 750x – FRONT PANEL FEATURES • Dual independent input jacks compatible with both passive and active instruments • Preamp Gain control with red LED clip indicator • Aural Enhancer control • Overdrive Activator Switch (illuminated red when engaged) • Overdrive “Drive” Control • Overdrive Level Control • SubWave™ Activator Switch (illuminated blue when engaged) • SubWave™ Level control • Bass control (with Pull Turbo function) • Midrange Level control • Midrange Frequency control • Treble control (with Pull Transparency function) • Effects Blend control • Variable Limiter • Limiter Active green LED indicator • Master Volume control • Speaker On/Off Switch • Illuminated Neon Power On/Off switch 750x – REAR PANEL FEATURES • XLR Pad (Level) control • XLR Output jack • XLR Mode switch (Direct, Direct + EFX, Line) • Ground/Lift switch for XLR Output jack • Side-Chain Effects Loop (Effects Send and Effects Return 1/4" jacks) • Tuner Out Jack • Preamp Out Jack • Overdrive Activator Footswitch jack • SubWave™ Activator Footswitch jack • Fan Mode switch • Stereo Headphones Jack • Two Speakon and two 1/4" Speaker Output jacks • Speaker Fuse (3AG, 10-amp fast-blo) • Line Fuse (3AG, 7-amp slo-blo in the U.S.) • AC Power Cord Receptacle ELECTRICAL SPECIFICATIONS Note: All measurements were taken with a line voltage of 120VAC. All noise specifications are “unweighted.” All voltages and watts are “RMS.” All measurements are taken with tone controls set flat, Aural Enhancer at minimum. Power Ratings (minimum) 850 Watts @ 2.6 ohms 750 Watts @ 4 ohms 450 Watts @ 8 ohms 2 • 750x OWNER’S MANUAL Frequency Response (power amplifier) (@ 850 watts RMS) –3dB @ 20 Hz and 40 kHz Sensitivity (full output under clipping, 8 ohms load, 100 Hz) Passive Input Jack: 62 millivolts Active Input Jack: 267 millivolts Power Amplifier (Effects Return Jack “in”): 5 volts Input Impedance Passive/Active Input: 800k Ohms Active Input: 60k Ohms Effects Return: 27k Ohms Output Impedance Effects Send: 100 Ohms Tuner Send: 100 Ohms XLR (Balanced) Out: 750 Ohms Dimensions (depth includes handles and XLR pad) 19" W x 5.38" H x 15" D (3 rack spaces) Weight 31 lbs. 750x – GETTING STARTED Connecting Your Speaker Cabinets The 750x is a mono amplifier, which makes things fairly simple. Locate the “Speaker Outputs” section on the rear of the amp. You will notice that there are four different speaker output jacks, two 1/4" type and two Speakon® type jacks. The Speakon jacks are preferable if your speaker cabinet is equipped with Speakons as well; however, you can use any of the four available jacks to connect your speaker(s) to the 750x. Using One Speaker Cabinet Using a speaker cable of 18 gauge or heavier (the heavier the cable, the lower the gauge), simply connect any one of the 750x’s Speaker Output jacks to the input jacks of your speaker cabinet. If your cabinet is a 4 ohm enclosure, the 750x will deliver will deliver 750 watts into it. If your cabinet is an 8 ohm enclosure, it will deliver 450 watts into it. This is a loud amplifier. Be sure to check the power handling capabilities of your speaker cabinet before connection and operation. Using Two Speaker Cabinets Using a speaker cable of 18 gauge or heavier (the heavier the cable, the lower the gauge), simply connect any of the 750x’s Speaker Output jacks to the input jacks of your two speaker cabinets. (You can use one 1/4" and one Speakon Output jack each if you wish; however, it is always best to use speaker cables with similar type ends.) If the cabinets are the same impedance, the same amount of power will be sent to each enclosure. If the cabinets are different impedances, more power will flow to the cabinet with the lower impedance. Since the 750x is a mono amplifier and individual cabinet levels cannot be adjusted, it is recommended that you use cabinets of the same impedance when using more than one cabinet. If you use two 8 ohm cabinets—the two-cabinet setup recommended by SWR—the resulting “total” imped...