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Boss LMB-3 Bass Limiter-Enhancer Guitar Effect Pedal


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  • The Boss LMB-3 Bass Guitar Effect Pedal ensures your bass sound is smooth and composed throughout a range of techniques
  • Full control of dynamic range via threshold level and ratio knobs
  • Ratio knob allows compression control
  • Threshold knob controls the extent of sound compression
  • Enhancer provides increased bass clarity and presence
  • Possible to incorporate the limiter and enhancer at the same time
  • AC adaptor or 9V battery operation
  • Includes BOSS' five-year warranty
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Delivery & Returns

Delivery to UK mainland addresses* is FREE on orders over £75 and up to 30kg. (As a guide, a standard electric guitar weighs approx. 3-5kg).

Delivery on orders below £75 are charged at £4.45!

Delivery to Northern Ireland, the Scottish Highlands & Islands, Isle of Man, Isle of Wight, Channel Islands and the Republic of Ireland. is weight dependant and will be indicated at the checkout

Delivery above 30kg to ANY location will vary according to weight and will be indicated at the checkout

LocationPriceStandard Delivery
UK mainland*FREE on orders over £75 £4.45 on orders under £751-3 working days
Northern Ireland, Scottish Highlands & Islands Isle of Man Isle of Wight Channel Islands Republic of Ireland£12.95 – any order value up to 30kg Over 30kg - please call1-3 working days
OverseasPlease call for detailsPlease call

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The Boss LMB-3 Bass Limiter-Enhancer Guitar Effect Pedal takes full control over the dynamic range by means of a limiter effect and an enhancer circuit. The LMB-3 is especially designed for an electric bass guitar to make your already wonderful-sounding axe sound even clearer, with the ability to cover a vast range of tones too. The LMB-3 cancels out any sharp peaks in volume so that no matter which technique you employ when playing the bass it will sound ultimately smooth.


As we all know, Boss are masters at producing fantastic electronics and effects for electric guitars, and the LMB-3 is no exception. At your disposal are four controls: level, enhancer, ratio, and threshold.

The level knob allows you to adjust and set the volume for a consistent, smooth bass output. Alongside the level control is the enhancer, which gives you sparkling trebles and intense, sharp clarity the more you turn it up. Next up is the ratio parameter which provides you with control over the compression ratio, thus regulating how much the limiter can compress the bass sound above the threshold. Lastly, the threshold knob lets you control at what level the compression can transpire.

The LMB-3 pedal is works off a 9V battery with the additional option to use an AC adaptor, so that you can take full advantage of its rich, smooth bass sound. The Limiter-Enhancer provides you with a huge range of tones to experiment with, so whether you’re employing a dynamic pop and slap bass technique, the pedal will ensure that any sharp peaks in volume are eradicated for an all-round, clean sound.

The Boss LMB-3 Bass Limiter-Enhancer pedal is compact and easy to use, and is sure to please any bassist whether you’re looking to improve your studio or stage presence and performance.

Model NameLMB-3 Bass Limiter-Enhancer Guitar Effect Pedal
Dimensions (H x W x D)73 x 129 x 59 mm
Weight430 g
Nominal Input Level-20 dBu
Input Impedance1 M ohms
Nominal Output Level-20 dBu
Output Impedance1 k ohms
Recommended Load Impedance10 k ohms or greater
Residual Noise Level-86 dBu (IHF-A, Typ.)
ConnectorsINPUT Jack, OUTPUT Jack, AC Adaptor Jack (DC 9 V)
Power SupplyDC 9 V: Dry Battery 9 V type (6F22/9 V), AC Adaptor
Current Draw17 mA (DC 9 V)
Included AccessoriesDry Battery 9 V type (6F22/9 V)
Options (sold separately)AC Adaptor (PSA-Series)
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