SWR Sound manual SM-900 User Guide, Introduction

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SM-900 USER GUIDE

INTRODUCTION

The SM-900 is truly the “State of SWR’s Art” in bass amplification electronics. The SM-900 is only slightly deeper and heavier than the SM-500, yet delivers twice the power and includes new fea- tures such as our very flexible tone section. Along with shelving-type Bass and Treble controls, the equalization section consists of two independent 3-band semi-parametric EQs. This provides the user with two analog presets via a silent footswitch, or three presets (EQ 1, EQ 2, or EQ 1+2) using the manual slide switch located on the front panel. You can now go from a solid groove sound to soloing with just the tap of your foot. Several suggested EQ settings are included in the tone section of this manual.

The SM-900 also boasts a studio-oriented “side chain” effects loop allowing the user the diversity of an effects unit while maintaining the constant clarity and natural tone of the instrument. SWR’s exclusive “To Tuner” jack is also on a side chain. Remember when you had to unplug your bass from your amp and hook into your tuner and frantically tune up between songs? Or patch the tuner between your instrument and amp, thus degrading sound quality? Those times are history.

Add to the above both stereo and mono effects loops, stereo/mono operation of the power amps, biamp capabilities, up to 900 watts RMS of power, an extremely quiet preamp, a “non-pumping” limiter, complete recording ability, and SWR’s proven reliability and sound quality, and you have what we feel is the best bass amplifier made anywhere in the world.

Every Professional Series product from SWR Sound Corporation is manufactured and hand-built in Sun Valley, California, USA.

SM-900 USER GUIDE • 1

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Contents SM-900 Important Safety Instructions Introduction SM-900 User GuideEquivalent Input Noise 8.9 microvolts SM-900 SpecificationsBridge/Mono Mode Stereo Mode per sidePassive/Active Input Front Panel Features & Operating ProceduresActive Input Tone Controls and Equalization a Basic Primer Tone Controls and Equalization Bass and Treble Controls Tone Charts and Suggestions SM-900 User Guide Tone Charts and Suggestions Rear Panel Features LINE/DIRECT Switch Effects Loop Speaker Fuses Bridge Mode Speakon Jack Rack Mounting Your SM-900 SM-900 Power Output Ratings SM-900 Bridge Mode Operation DiagramSM-900 Stereo Mode Operation Diagram SM-900 Bi-Amp Operation Diagram Stereo Effects Unit SM-900 Stereo Effects Patching DiagramSwrsound.com