SWR 350X Pro Series Bass Amplifier Head (350 Watts)

Limiter. Aural Enhancer.

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SWR 350X Pro Series Bass Amplifier Head (350 Watts) reviews

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24 People rated this product : * * * * * * * * * * 8 out of 10

 

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Read all SWR 350X Pro Series Bass Amplifier Head (350 Watts) reviews...
* * * * * * * * * * 9 out of 10

"I can't imagine ever needing another amp."

Feature:
Very easy to dial in any sound -- simple, straightforward controls. My only complaint is that it lacks the transparency knob that my SWR 2004 has. The subwave tracks well, and once you get past its novelty and learn to leave it on in the background it's very effective.

Quality:
A tank -- all hand-wired, solid components. You can't move the tube from its socket without effort (a good thing). The shiny chrome face is easy enough to scratch, though -- watch out for rack rash.

Value:
Simple, easy to use. GREAT sound, plenty of power and headroom. Warm tone, but defined -- and extremely variable. The aural enhancer is there for a reason -- use it.

Desirability:
Who doesn't like chrome? It's un-American not to! Seriously, though -- well put-together, attractive package, functionally simple and straightforward. A great amp. I'd say it's the best sound I've developed in 35 years of playing, much of it professionally. The fact that it looks great is only a plus, and did not at all figure in my selection of this amplifier.

Sound:
Full, round, picks up every nuance and brings them to the front. Nothing beats a tube pre-amp for warmth. I've used it to play everything from Classic Rock to country to jazz and have been able to create exactly the sound I've wanted. I run this through a Workingman's 4x10 and 1x15 cab (replaced the latter's speaker with an Eminence Omega Pro for added depth on larger stages). Can't say enough about the line-out, either -- sound guys notice right away that I'm sending a tube-driven signal and love it.

Ease of Use:
Very fast sound set up. Unlike other amps, shifting mids does not throw you into some parametric thing that takes ten minutes to sort out. Smooth curve on all controls -- no exponential increases to speak of. The manual (worth the read) is written for anyone to understand and does a great job of explaining functionality. Try the sample tone suggestions as a starting point.

Support:
(Haven't had to use it.)

Overall:
I tend to hold on to equipment for a long time once it suits me. This was purchased for live applications on larger stages (I always run through the board, so filling the room is not a consideration for me) and it works quite well (I use the 2004 for rehearsals). If I were to discontinue using this it would be simply because I wouldn't need to haul around the 4-space rack I have it in. No big deal, though. I can see using this forever; more power (God forbid I ever need that) would simply require an additional power amp (I have three Crowns lying around that would fit the bill).

Submitted: 4/24/2007

Style of Music: Classic rock, modern rock, country.

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About This Product!
Description
Docs
From Our Catalog
Improving on greatness. SWR's 350x is the third in a series of upgrades to SWR's top-selling Bass 350 amplifier. In addition to new chassis graphics — featuring the SWR logo badge in classic chrome — the 350x has inherited the SWR Mo Bass' popular SubWave effect, which produces a clean, pure and accurate octave effect. A Subwave Footswitch with a hardwired 1/4 in. cable (for connection purposes) ships with the 350x as an added bonus.

Front Panel Features
Ultra-High-Polished Aluminum Front Panel

Dual independent input jacks compatible for both active and passive instruments

Gain control with LED peak clipping indicator

Exclusive Aural Enhancer circuitry

Subwave (with Level control)

Subwave Illuminated on/off switch

Limiter

Limiter Defeat Switch

Active bass and treble controls

Variable mid-range EQ

Effects Blend Control

Master Volume Control

Rack mountable

Chrome Rack Handles

Power On/Off Switch

Aluminum chassis

Rear Panel Features
Sidechain mono effects loop

Balanced XLR Output

XLR Mode Switch (Direct, Line, or Direct + Sub)

Tuner Send

Subwave Footswitch Jack

Fan Defeat Switch

Two 1/4 in. Speaker Output Jacks

Two Speakon Output Jacks

Speaker fuse: 3AG, 10 Amp, Fast Blo

Line Fuse: 3AG, 8 Amp, Slow Blo

AC Line Receptacle

Internal Features
All tube preamp gain stages

(1) 12AX7 Preamp Tube

Cooling Fan

Technical Info

Frequency Response (Power Amplifier): -3dB @ 20Hz and 40KHz

Dimensions (W x H x D): 19 x 3.5 x 12.25 in.

Weight: 17 lbs.

Power Output:
450 Watts @ 2 ohms
350 Watts @ 4 ohms
240 Watts @ 8 ohms

Sensitivity:
Full output under clipping, 8 ohms load, 100 Hz
Passive Input Jack: 38 millivolts
Active Input Jack: 155 millivolts
Power Amplifier (Effects Return Jack "in"): .5 volts

Signal To Noise Ratio: -72 dB(<10 millivolts typical)

Equivalent Input Noise: 9 microvolts

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
Shiny, pretty, punchy! Comprehensive tone shaping with Aural Enhancer, limiter, active bass and treble plus variable mid EQ, plus SubWave octave effect. Effects loop, tuner send, and DI output. Dual Speakon and 1/4" outputs; 350 watts. Includes Subwave footswitch.

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