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350 X™

4400900000

A direct descendant of our classic Bass 350, the 350x is the perfect solution for anyone who wants the classic SWR tube preamp sound in the most affordable amplifier package available. It’s perfect for pairing up with a Goliath Junior III™ 2x10 or Son Of Bertha™ for small gigs, or with any single 4-ohm cabinet (Goliath III™ 4-ohm, Goliath Senior™, Henry the 8x8™, Triad™) for a killer head-cabinet combination. And like all X Series amplifiers, it comes equipped with our exclusive Subwave effect onboard.

Features: 350 watts @ 4 ohms, classic SWR tube preamp with Aural Enhancer, Subwave, studio-quality three-mode XLR out (direct, direct + Subwave, line) with ground lift and level pad, three-band active EQ with variable midrange, automatic limiter with defeat option, side-chain effects loop with blend control, fan defeat switch, tuner send, Speakon and 1/4” outputs. Footswitch for Subwave effect included.



 
Model Name 350 X™
Model Number 44-00900-000
Series X Series
Type Bass Amplifier Head with SubWave™
Description 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" cable (for connection purposes) ships with the 350x as an added bonus.
Features 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
Our 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" Speaker Output Jacks
Two Speakon® Speaker 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
Power Output 450 Watts @ 2 ohms
350 Watts @ 4 ohms
240 Watts @ 8 ohms
Impedance (Ohms) N/A
Speakers N/A
Channels 1 Channel
Controls Gain with preamp clip indicator,
Aural Enhancer,

SubWAVE:
On/Off Switch
Level

Bass,
Midrange:
Frequency,
Level,

Treble,
Effects Blend with pull defeat switch,
Master volume
Covering Polished aluminum
Weight 17 lbs.
Dimensions Height: 3.5"
Width: 19"
Depth: 12.25"
(2 rack spaces)
Power Handling N/A
Tube Complement (1) 12AX7 Preamp Tube
Accessories Includes SubWave Activator Footswitch P/N 0066249000
Cover N/A
Footswitch Includes SubWave Activator Footswitch P/N 0066249000
Frequency Response (Power Amplifier): -3dB @ 20Hz and 40KHz
SPL N/A
Suggested Speaker Enclosures Big Bertha™
Henry 8x8™
Triad™
Goliath III™
Goliath Junior III™
Suggested Speaker Combinations (2) Goliath III
(2) 8 ohm Goliath Junior III
(2) Son Of Bertha™
(1) Goliath Junior III & (1) Son Of Bertha
(1) Goliath Junior III & (1) Big Ben™
(1) Goliath III & (1) Goliath Junior III
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
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
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