Sounds great, looks great, on casters and plenty of power. Here's what the website says about it:
SWR's Black Beauty combo amp features a custom SWR 15-inch bass driver and high-frequency horn tweeter in a 4-ohm speaker configuration - driven by 350 watts RMS (450 watts using a 4-ohm extension speaker cabinet). In addition to dramatic, new chassis graphics (featuring the SWR badge in classic chrome), the Black Beauty has inherited a very popular effect from the SWR Mo' Bass soundstation - the SWR SubWave - producing clean, pure and accurate octave signals. A Subwave Footswitch with a hardwired 1/4" cable ships with the Black Beauty as an added bonus.
The Black Beauty's 12AX7 preamp tube provides true warmth and grit through the 20Hz - 40kHz frequency response. And with 350 watts at 4 Ohms this amp thumps out 100dB SPL! Increase your power to 400 watts at 2.67 Ohms (with 8 ohm extension speaker) or 450 Watts at 2 Ohms (with 4 ohm extension speaker). A third order, 6db rolloff, 18db Butterworth high pass 4KHz turnover crossover is located inside the Black Beauty's speaker enclosure.
SWR Black Beauty Features:
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 and illuminated on/off switch)
Limiter with defeat switch
Active bass and treble controls
Variable mid-range EQ
Effects Blend Control
Master Volume Control
Power On/Off Switch
Sidechain effects loop
Balanced XLR output with mode switch (Direct, Line, or Direct + Sub)
Subwave footswitch jack
Extension speaker output
Three-way tweeter control switch (full-range, -6dB, tweeter off).
Extruded heat sink