not too much and not too little – our 550x is just right, providing world-famous swr® professional tube preamp tone and 550 watts of full-range power in a convenient two-rack-space configuration. loud enough for just about any gig, and simple enough for the most plug-and-play bassist, with our exclusive subwave sub-octave effect onboard, the 550x is a powerful tool in any bassist’s arsenal.
model name550 x™
model number44-00700-000
seriesx series
typebass amplifier head with subwave™ and overdrive
descriptionxtra power, xtra lows from the newest member of the x series. swr®’s 550x takes the 350x’s top-selling feature set to new heights - 550 watts @ 4 ohms - and new lows with the swr subwave octave generator. world-famous swr professional tone and power in a convenient two-rack-space configuration. (subwave footswitch included.).
featuresfront 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
two 1/4” speaker output jacks
two speakon® speaker output jacks
speaker fuse: 3ag, 10 amp, fast blo
line fuse: 3ag, 10 amp, slow blo
ac line receptacle
internal features
all tube preamp gain stages
(1) 12ax7 preamp tube
cooling fan
power output550 watts @ 4 ohms
375 watts @ 8 ohms
(minimum impedance = 4 ohms)
impedance (ohms)n/a
speakersn/a
channels1 channel
controlsgain with preamp clip indicator,
aural enhancer,
subwave:
on/off switch
level
bass,
midrange:
frequency,
level,
treble,
effects blend with pull defeat switch,
master volume
coveringpolished aluminum
weight26 lbs.
dimensionsheight: 19”
width: 3.5”
depth: 14.5”
(2 rack spaces)
power handlingn/a
tube complement(1) 12ax7 preamp tube
accessoriesincludes subwave activator footswitch p/n 0066249000
covern/a
footswitchincludes subwave activator footswitch p/n 0066249000
frequency response(power amplifier): -3db @ 20hz and 40khz
spln/a
suggested speaker enclosuresbig bertha™
henry 8x8™
goliath iii™
goliath senior™
12 stack™ 4x12
suggested speaker combinations(2) goliath iii
(2) son of bertha
(1) goliath iii & (1) son of bertha
(1) goliath iii & (1) big ben™
(1) goliath iii & (1) goliath junior iii™ 8 ohms
(2) 12 pack 2x12’s
input impedancen/a
output impedancen/a
sensitivityn/a
signal to noise ration/a