SWR 1500
Incredibly versatile, the SWR SM-1500 bass amp head from the Classic Series 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 bass head 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.
In addition, SWR has added a popular Bass Intensifier circuit; (a boost circuit great for soloing); and a tube-driven compressor, which can be engaged before or after the EQ section of the amp. The SWR SM-1500 is simply a remarkable piece of engineering as well as an incredibly powerful and versatile tool for the serious bass player.
True to SWR tradition, the SM-1500 is an innovative bass amplifier head that is the result of decades of research and design experience, coupled with direct input from the world’s greatest recording and touring bassists.
- Description
- Technical Specification
Description
Twin power amps with three modes of operation
Bridge (mono) mode”1,500 watts @ 4-ohms
Stereo mode”750 watts @ 2-Ohms (per side)
Bi-Amp mode”with adjustable crossover frequency
Tube preamp fueled by a 12AX7 dual triode tube
Two front panel inputs plus one rear panel input with input select switch to accommodate multiple bass guitar setups
World renowned SWR Aural Enhancer tone shaping
World-class Compression with Comp Position selection
Four Footswitch selectable features
Bass Intensifier for maximum impact
Boost to accent solos
Three Semi-Parametric Equalizer configurations”choose from two independent 3-band Eq’s or combine them into one 6-band
EQ
Stereo/mono Effects Loop with Effects Blend control
Traditional Bass/Treble tone controls
Speakon and 1/4″ speaker outputs
Balanced XLR output with Line, Comp Output and tube Direct modes, plus Level control, Phase and Ground Lift switches
Power requirement:1400W
Power amp minimum impedance:4 Ohm (Bridge Mode);
2 Ohms per channel (Normal, Stereo, Bi-Amp Modes)
Sensitivity:1.2V RMS, 1kHz @ Mono Return, Effects Blend at WET, Volume at MAX
Power output:1500W @ 4 Ohm (Bridge Mode);
750W @ 2 Ohms per channel (Normal, Stereo, Bi-Amp Modes)
Pre amp input impedance: >820 kOhm (Front panel Inputs);
10k Ohm (Rear panel Input)
Sensitivity for full power: 13mV @ 1kHz, Gain and Volume at MAX, all Bass, Mid and Treble controls flat (center detent),
Aural Enhancer at mid position, Effects Blend at DRY, Bass Intensifier, Compression and Boost OFF
Tone controls bass:±15dB @ 70Hz
Treble:±15dB @ 3kHz
Variable semi-parametric EQ: MID 1: ±15dB @ 30Hz to 200Hz
Mid 2:±15dB @ 165Hz”1.1kHz
Mid 3:±15dB @ 900Hz”6kHz
Compression gain reduction: ”22dB maximum, selectable PRE or POST EQ
Threshold: ”10dBV to +10dBV
Ratio:1:1 to 20:1
Attack time:10mS to 600mS
Release time:500mS to 5.5S
