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SWR 350x Owner's Manual

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350x
350x
OWNER'S MANUAL
OWNER'S MANUAL
SWR SOUND CORP. • SUN VALLEY, CA • USA

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Summary of Contents for SWR 350x

  • Page 1 350x 350x OWNER’S MANUAL OWNER’S MANUAL SWR SOUND CORP. • SUN VALLEY, CA • USA...

  • Page 2: Important Safety Instructions

    IMPORTANT SAFETY INSTRUCTIONS 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.
  • Page 3 SWR’s world-renowned Professional Line of products for bassists. A little history: The SWR 350x is an upgraded version of the Bass 350, a model we’ve offered for over ten years as a simple and straightforward solution for bassists who wanted the famous “SWR Sound" in the simplest Professional Line package possible.

  • Page 4: Electrical Specifications

    Note: Please take a moment to verify that the following items were included in your SWR 350x packaging: AC Cable, User Guide, SubWave Activator Footswitch, 1/4" to 1/4" Footswitch Cable, SWR Catalog. 350X • FRONT PANEL FEATURES 350X • FRONT PANEL FEATURES •...

  • Page 5: Getting Started

    Using a speaker cable of 18 gauge or heavier (the heavier the cable, the lower the gauge), simply connect any one of the 350x’s Speaker Output jacks to the input jacks of your speaker cabinet. If your cabinet is a 4 ohm enclosure, the 350x will deliver 350 watts into it.

  • Page 6: Front Panel Features

    Important: The minimum total impedance when operating the 350x is 2 ohms. This means you can safely use: a) A single 8 ohm cabinet b) A single 4 ohm cabinet c) Two 8 ohm cabinets (total: 4 ohms) d) Three 8 ohm cabinets (total: 2.6 ohms)

  • Page 7: Gain Control

    10 dB or more, you may find the Active input more compatible. The best judge is your own ears. If you’re using a keyboard or bass pedal with the 350x, we have found the best choice to be the Active input. Note: Using the Active input with passive basses (active instruments will always employ a battery) may result in a loss of high end transients.
  • Page 8 SubWave™ Controls Based on the circuit from SWR’s groundbreaking Mo’ Bass Soundstation, the SubWave™ on your 350x is a lightning-quick sub-octave wave engine with tracking superior to other models of sub-octave effects currently on the market. In plain terms, it hears the note you play and immediately generates a signal one octave below it—all the way down to low “C#”, “C”, or even low “B”...
  • Page 9 Limiter/Compressor Circuit The Limiter found in the 350x is a soft knee type limiter. The Limiter circuit is located after (post) the Master Volume and before (pre) the power amplifier. Therefore, the Limiter is driven by the Master Volume control. Its threshold (starting point) is preset by the factory so that the user can get maximum overall apparent volume without unduly overdriving (or “clipping”) the power amplifier, which can eventually damage the unit’s internal...

  • Page 10: Master Volume Control

    If you are using an external effects device in the effects loop, that signal will also be present when in the LINE position (dictated by the setting of the Effects Blend control on your 350x). When in this position, the output level will be affected by the Gain control on the front panel as well as the XLR Pad control.
  • Page 11 Sometimes connecting to certain mixing boards or studio consoles with non-standard XLR wiring can cause a ground loop. Your 350x has a push-button switch for lifting the ground on the Balanced (XLR) Output. (It affects no other outputs.) Pushing on the switch will change the mode of operation. When the switch is in the “out”...

  • Page 12: Effects Send

    To use this feature, connect a shielded patch cord from the Tuner Out jack on your 350x to the input jack on your tuner. Turn the amplifier on and you’re ready to go. If you do not wish to monitor your sound during the tuning process, you may turn down the Master Volume.
  • Page 13 This jack’s primary function is to complete the Effects Loop circuit by routing the post-external-effects device signal back into the power amp of the 350x, where it can be blended back in with the original signal by using the Effects Blend control on the front panel. However, it can also be used as: 1.
  • Page 14 • One 4 ohm speaker enclosure The optimum operating impedance for the 350x is 4 ohms. This way you get a good amount of power from the amp (350 watts) without operating too closely to the minimum impedance—or, in simple terms, without running the amplifier too hot.

  • Page 15: Speaker Output Jacks

    “Press,” then click on “Articles,” then click on “Plug and Play – Setup Tips for Amps and Speakers” – an article by SWR founder Steve Rabe that ran in the August ’92 issue of Bass Player Magazine.)
  • Page 16 350x to your speaker system. Do not use shielded instrument cable to connect your amplifier to your speaker enclosure, as this can result in intermittent power loss, cause your amp to oscillate and damage itself and/or your speakers, and render the cable useless for any purpose.

  • Page 17: Rack Mounting Instructions

    The 350x takes up two full rack spaces (3 1/2"). If the rack in which you mount your 350x requires that the rubber feet on the bottom of the chassis be removed, please remember to keep the screws handy in case you wish to reattach the rubber feet at a later date.

  • Page 18: Suggested Settings

    After you find combinations you like, don’t forget to try adding in the SubWave™… as much as you feel is necessary. 16 • 350x OWNER’S MANUAL...
  • Page 19 SWR 350x – SUGGESTED SETTINGS SWR 350x – SUGGESTED SETTINGS Midrange Aural Enhancer Bass Level Frequency Treble ROCK ROCK Midrange Aural Enhancer Bass Level Frequency Treble REGGAE REGGAE Midrange Aural Enhancer Bass Level Frequency Treble JAZZ JAZZ Midrange Aural Enhancer...
  • Page 20 In the case where the unit must be shipped, pack your unit carefully (using original packaging whenever possible), and include a copy of your bill of sale. Ship the unit PREPAID to the SWR Authorized Service Center of your choice.

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