The mother ship has landed! The SM-1500 bass head is SWR’s new flagship amp. Incredibly versatile, it has two separate power modules providing an astonishing 1,500 watts (at 4 ohms in the bridged mono mode or 750 watts per side in either stereo or dual mono), an onboard tube-driven compressor and an array of tone controls that would be right at home in the world’s best studios. The SM-1500 will absolutely rock the house while providing the crystal-clear, full-range tone that the world’s premiere bassists have come to expect from SWR.

MPN: 4401400000

- Two 750 watt power modules
- SWR® preamp w/ Aural Enhancer™
- Two 1/4" inputs w/ Input select switch & -12dB Pad switch
- Master bass & treble controls
- Dual selectable 3-band semi-parametric EQs

Studio-quality XLR out
- LINE OUT FEATURES:
- Selectable Direct (Tube DI), Post-compressor or post EQ
- Ground lift
- Phase switch
- Level control
- Bass Intensifier™ circuit w/ Level & Cutoff controls

Tube compressor
- COMPRESSOR FEATURES:
- Selectable "Comp-position" for pre or post EQ functionality
- Threshold, Ratio, Attack & Release controls

Boost circuit
- Side-chain effects loop w/ Blend control
- Switch selectable Bi-amp function w/ High & Low crossover outputs & frequency control
- Speakon® & 1/4" speaker outputs

Footswitch
- FOOTSWITCH FEATURES
- Bass Intensifier
- EQ Select
- Effects Loop
- Boost

SPECIAL FEATURES:

FRONT PANEL:
- Mute button
- Input Pad
- Bass Intensifier™ On/Off
- Bass Intensifier Level
- Bass Intensifier Cutoff
- Compressor On/Off
- Compressor Threshold
- Compressor Ratio
- Compressor Comp-position Indicator
- Compressor Attack
- Compressor Release
- Compressor LEDs
- Boost Level
- Boost On/Off
- Power On/Off LED
- 1/4" Inputs for Channels 1 & 2
- Input Select
- Preamp Clip LED
- Gain Level
- Aural Enhancer™
- Bass Master Level
- EQ1 Mid1 dual concentric frequency/level
- EQ1 Mid2 dual concentric frequency/level
- EQ1 Mid3 dual concentric frequency/level
- Treble Master Level
- Effects Blend
- Master Volume dual concentric (Left/Right)
- Power On/Off switch
- EQ Select (1/2 or 1+2)
- EQ2 Mid 1 dual concentric frequency/level
- EQ2 Mid2 dual concentric frequency/level
- EQ2 Mid3 dual concentric frequency/level

REAR PANEL:
- Balanced XLR Line Out
- Ground Lift
- Line Out Level
- Line Out Select (Direct [Pre], Comp Output, Line [Post])
- Effects Loop Send
- Effects Loop Return Right
- Effects Loop Return Left
- Crossover Low
- Crossover Frequency
- Crossover High
- Stereo/Bi-Amp Select
- 1/4" Tuner Out
- 1/4" Line In
- 16A Breakers (2)
- 1/4" Parallel Right Outputs
- 1/4" Parallel Left Outputs
- Power Cord Input
- Speakon® Out (Right)
- Normal/Bridge Select
- Speakon Out Bridged Mono
- Speakon Out Left

- Power Output 1500W stereo/750W per side mono
- 1500W @ 4 ohms bridged mono, 750W @ 2 ohms dual mono, stereo or bi-amp

Controls

FRONT PANEL:
- Mute Button
- Input Pad
- Bass Intensifier™ On/Off
- Bass Intensifier Level
- Bass Intensifier Cutoff
- Compressor On/Off
- Compressor Threshold
- Compressor Ratio
- Compressor Comp-Position Indicator
- Compressor Attack
- Compressor Release
- Compressor LEDs
- Boost Level
- Boost On/Off
- Power On/Off LED
- 1/4" Inputs for Channels 1 & 2
- Input Select
- Preamp Clip LED
- Gain Level
- Aural Enhancer™
- Bass Master Level
- EQ1 Mid1 Dual Concentric Frequency/Level
- EQ1 Mid2 Dual Concentric Frequency/Level
- EQ1 Mid3 Dual Concentric Frequency/Level
- Treble Master Level
- Effects Blend
- Master Volume Dual Concentric (Left/Right)
- Power On/Off Switch
- EQ Select (1/2 or 1+2)
- EQ2 Mid 1 Dual Concentric Frequency/Level
- EQ2 Mid2 Dual Concentric Frequency/Level
- EQ2 Mid3 Dual Concentric Frequency/Level

REAR PANEL:
- Balanced XLR Line Out
- Ground Lift
- Line Out Level
- Line Out Select (Direct [Pre], Comp Output, Line [Post])
- Effects Loop Send
- Effects Loop Return Right
- Effects Loop Return Left
- Crossover Low
- Crossover Frequency
- Crossover High
- Stereo/Bi-Amp Select
- 1/4" Tuner Out
- 1/4" Line In
- 16A Breakers (2)
- 1/4" Parallel Right Outputs
- 1/4" Parallel Left Outputs
- Power Cord Input
- Speakon® Out (Right)
- Normal/Bridge Select
- Speakon Out Bridged Mono
- Speakon Out Left

- Dimensions: Height: 5.5" (14 cm) (3 rack spaces)
- Tube Complement: One 12AX7
- Accessories: Includes 4-Button Footswitch