The power and features required by today's gigging bassist.

The rackmountable, 2U SWR WorkingPro 400 Bass Amplifier head delivers 400W @ 4 ohms. For tone shaping it combines a 4-band EQ with variable mids, SWR's Aural Enhancer circuitry, and a Bass Intensifier that boosts and compresses the lows. Other pro features include preamp gain and master controls, automatic limiter with defeat switch, blend control for sidechain effects, XLR balanced pre/post output, and footswitch for Intensifier and mute.

SWR WorkingPro 400 Bass Amplifier Features:

• 400W @ 4 ohms; 250W @ 8 ohms
• -10dB pad option on input
• Mute switch (footswitchable)
• Independent preamp gain and master volume controls
• Exclusive SWR Aural Enhancer tone control
• 4-band active EQ with variable midrange
• Bass Intensifier with level and frequency cutoff controls (footswitchable)
• Automatic limiter with defeat option
• XLR balanced output with pre/post switch, ground lift and -10dB switch
• Side-chain effects loop with blend control
• Tuner out jack
• Unbalanced line out jack
• Headphone jack
• Footswitch jack for included 2-button switch (switches Intensifier and mute)
• 2 - 1/4" and 2 Speakon speaker jacks
• 5-year transferable warranty

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SWR WorkingPro 400 Bass Amplifier Specifications:

• 400W @ 4 ohms; 250W @ 8 ohms
• 19"W x 3-1/2"H x 13-1/2"D
• 25 lbs.