SWR Sound 350x Active Tone Control Section, SubWave Controls, SubWave Activator Switch

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This remains true up to about the “2 o’clock” position. This position – a favorite for many users – brings out both the low end fundamentals and crisp highs and, at the same time, adds a little lower midrange to help cut through the band. However, if you go further clockwise and past the 2:00 position, selected mids will start to drop off – specifically, a group of frequencies centered around 200 Hz. At this point and after, the effect becomes much more pronounced. However, the curves involved here are gentle, as opposed to the very extreme curves you can create by boosting or cutting the Active Tone Controls (EQ).

Most significantly for basses, the Aural Enhancer will help bring out the fundamentals of your lower regis- ters without masking them with overtones, as is possible when using the Bass control only. At the same time, it opens up the sibilance characteristics of all instruments without being harsh.

Obviously, numbers and curves and circuits all mean nothing compared to what you hear with your own ears. Play a chord, a repeated lick, or a harmonic, and turn the Aural Enhancer control to various points on the knob to hear the effect for yourself. As always, your ears are the best judge when it comes to settings that affect the tone of your instrument.

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 cur- rently 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” on some basses!

SubWave™ Activator Switch

Located directly above the SubWave™ Level Control, this is an illuminated push-button switch that acti- vates the SubWave™ effect. When engaged, the switch cap will illuminate in blue. Push once to engage, then again to disengage. (The SubWave™ effect can also be switched on and off via foot-switch; please see the heading titled “SubWave™ Footswitch” in the “Rear Panel Features” section later in this manu- al.)

SubWave™ Level Control

Once the SubWave™ effect is engaged, you can use this control to determine the amount of effect to be blended in with your original (“clean”) bass signal. Turning the control clockwise will increase the amount of effect, while turning the control counter-clockwise will decrease the amount of effect. When the control is set fully counter-clockwise to “MIN”, no effect will be heard, even though the effect is engaged and the Activator switch is illuminated in blue. This is normal. Also, when the control is set fully clockwise to “MAX”, the “clean” bass signal will still be present…along with plenty of sub-octave effect. As always, your ears and the desired musical application will be the best judge in setting this control.

(Keep in mind that the Bass Level control will have a significant impact on the perceived level of the SubWave™ effect as well, as it follows immediately after the SubWave™ in the signal chain. Please read below.)

350x • ACTIVE TONE CONTROL SECTION

Bass Control

The Bass control employs a shelving-type circuit and boosts or cuts the bass response + /–15dB, from about 30Hz to 100Hz. Starting at the control’s mid-position (“center-click”), turning the control counter- clockwise cuts the bass response, and turning the control clockwise boosts the bass response.

You’ll find that the Bass Level control will boost or cut the SubWave™ effect along with the “clean” bass signal. That’s because of the range of frequencies covered by this particular control. You can use both the Bass and SubWave™ Level controls to get a good balance between how much bass you want in your clean sound, and how much of a bass boost you want when engaging the SubWave™. Some users will want a significant boost, while others may be striving for a more consistent level (or “unity gain”). Again, let your ears and musical taste be the judge.

NOTE: Setting both the Bass and SubWave™ Level controls near or at maximum boost will increase the overall amount of bass in your signal VERY SIGNIFICANTLY! We’re all in favor of that, just so

6 • 350x OWNER’S MANUAL

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Contents 350x SWR CORONA, CA USAImportant Safety Instructions Introduction 350X Front Panel Features 350X Rear Panel FeaturesConnecting Your Speaker Cabinets Using One Speaker CabinetUsing Two Speaker Cabinets 350x Getting Started350x Front Panel Features Turning The Unit OnGetting Sound Out Input JacksActive Input Jack Gain ControlPreamp Clip LED Aural EnhancerSubWave Activator Switch 350x Active Tone Control SectionSubWave Controls SubWave Level ControlMidrange Controls Midrange Level ControlMidrange Frequency Control Treble Control350x Rear Panel Features XLR Mode Switch Line/Direct/Direct + Sub XLR Pad ControlEffects Loop for external effects devices XLR Ground/Lift SwitchTuner Out SubWave Activator Footswitch Cooling Fan & Fan Mode SwitchEffects Send Effects ReceiveSpeaker Output Section How Impedance Affects Power Ratings350x Power Amplifier Minimum Impedance Ratings 350x Power Delivery Capabilities Power Ratings Speaker Output JacksSpeaker Fuse Internal Feature Vacuum Tube Valve Rack Mounting InstructionsLine Fuse A/C or Mains Fuse Cord ReceptacleFinal Engineering Summary Suggested SettingsFEW Words Concerning Heat Rock ReggaeJazz SlapSWR

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.