Introduction

Congratulations on your purchase of the SWR 350x Bass Amplifier! You now own the cornerstone amp of 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. Our top-selling Professional Line head for several years run- ning, the Bass 350 featured a tube preamp (using a specially-selected 12AX7A vacuum tube), SWR’s patented “Aural Enhancer,” an easy-to-use 3-band EQ section, and a high-quality, discrete solid-state 350- watt power amp capable of delivering enough power and headroom for most live applications. With a proven track record among players of all levels, the Bass 350 has become a constant presence in live venues and studios alike.

The new 350x maintains all of these proven features while adding significant improvements. We’ve inte- grated a new feature: our SubWave™ circuit, which produces a tone an octave below the original signal and tracks as well or better than anything else on the market today. (The effect is foot-switchable, and we’ve provided a footswitch for your convenience.) The XLR (Balanced) output circuit has been upgraded to include a variable pad, and is quieter in terms of signal-to-noise ratio. Additionally, the unit is now lighter, quieter (in terms of overall residual and white noise), and in our humble opinion, better-looking thanks to a cosmetic rework from the ground up. And, of course, each 350x is still 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 equip- ment 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 350x helps you get there from here… and beyond.

Please take the time to read your User Guide thoroughly and completely, so that you can realize the full potential of your new 350x Bass Amplifier. Once again, thanks for your purchase, and for letting SWR help Amplify Your Future™.

Sincerely,

SWR

350x OWNER’S MANUAL • 1

350x specifications

The SWR Sound 350x stands as a noteworthy amplifier in the world of professional audio, particularly designed for musicians and sound engineers who seek high-quality performance without compromising on portability. This robust amplifier delivers a balanced blend of power, versatility, and advanced technology to meet the demands of various musical settings.

One of the standout features of the SWR Sound 350x is its impressive output power of 350 watts at 4 ohms. This ensures that it can drive a wide array of speaker configurations with ease, making it a reliable choice for gigs ranging from intimate performances to larger venues. The amp is also characterized by its lightweight and compact design, allowing for easy transport without sacrificing audio quality.

The SWR Sound 350x utilizes advanced circuitry that includes a Class D power section. This technology not only provides efficient power management but also minimizes heat output, extending the life of the amplifier. Additionally, the amp incorporates an innovative speaker protection circuit that safeguards both the amplifier and connected speakers from potential damage during high-volume performances.

Tone shaping is another area where the SWR Sound 350x excels. It comes equipped with a three-band EQ that allows musicians to sculpt their sound to fit their specific needs. Whether you are looking for a punchy low end, smooth mids, or crisp highs, the customizable EQ settings enable users to tailor their output to suit various musical styles and environments.

For added convenience, the SWR Sound 350x features auxiliary input and headphone output options. This allows performers to practice quietly with headphones or play along with backing tracks seamlessly. Built-in limiting ensures that signals stay at a safe level, preventing distortion and maintaining audio clarity.

Durability is also a highlight of the SWR Sound 350x, which is housed in a rugged, roadworthy chassis designed to withstand the rigors of touring. The intuitive layout of controls makes it user-friendly, allowing quick adjustments during live performances without fumbling.

In summary, the SWR Sound 350x is a versatile and powerful amplifier that stands out in a crowded market. Its combination of portability, advanced technology, and sound quality makes it an excellent choice for musicians looking to elevate their performance. Whether on stage or in the studio, the SWR Sound 350x is sure to deliver exceptional audio experience.