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Small silver metal bass EQ pedal with five slider controls

rowin

Rowin LEF-317B 5-band bass EQ guitar pedal

SKU CH-0BBD-3XNFG

A 5-band bass graphic EQ pedal with master level, ±18 dB per band, true bypass and a zinc-alloy mini chassis

  • TypeBASS EQUALIZER PEDAL
  • Accessory TypeEffects Pedals - BASS EQUALIZER
  • FinishFull Metal Case
  • Body StyleMini Size
  • Body MaterialsMetal
  • Back & SideMetal
  • 5-band graphic EQ with ±18 dB per band for precise tone shaping
  • Frequency centres at 62.5 Hz, 125 Hz, 500 Hz, 1 kHz, 4 kHz cover the bass range
  • True bypass switching keeps the signal transparent when the pedal is off
  • Zinc alloy metal shell in a 9.5 × 3.8 × 5.2 cm mini enclosure for rugged portability
  • Runs on a standard 9 V DC centre-negative supply drawing 26 mA

Bass EQ pedal overview

The Rowin LEF-317B is a 5-band graphic equaliser built for bass guitar. It provides ±18 dB gain range per band with a master level control. The true bypass design keeps the signal transparent when the pedal is off. Its zinc-alloy mini enclosure measures 9.5 by 3.8 by 5.2 centimetres and weighs 248 grams.

Power and connection check

Confirm you have a 9 V DC centre-negative adapter capable of at least 26 mA; the supply is not included. The pedal uses 1/4-inch monaural jacks with 1 M ohm input and 100 k ohm output impedances. Ensure your pedalboard has space for the 9.5 cm length and that patch cables can reach the side-mounted jacks.

Build integration

The compact metal chassis frees up pedalboard real estate for other effects. True bypass prevents tone colouration when the unit is disengaged. Five frequency centres at 62.5 Hz, 125 Hz, 500 Hz, 1 kHz and 4 kHz cover the core bass spectrum. Builders needing more than five bands or a dedicated power supply in the box will need a different solution.

Highlights

  • 5-band graphic EQ with ±18 dB per band for precise tone shaping
  • Frequency centres at 62.5 Hz, 125 Hz, 500 Hz, 1 kHz, 4 kHz cover the bass range
  • True bypass switching keeps the signal transparent when the pedal is off
  • Zinc alloy metal shell in a 9.5 × 3.8 × 5.2 cm mini enclosure for rugged portability
  • Runs on a standard 9 V DC centre-negative supply drawing 26 mA

Specifications

BrandROWIN
SeriesGUITAR EFFECT PEDAL
ModelROWIN LEF-317B BASS EQ
Part NumberLEF317B
TypeBASS EQUALIZER PEDAL
Accessory TypeEffects Pedals - BASS EQUALIZER
FinishFull Metal Case
Body StyleMini Size
Body MaterialsMetal
Back & SideMetal
TopMetal
Neck MaterialsMetal
Fretboard MaterialsPCB Board
Output Power26mA
Inputs1m Ohms
Outputs100k Ohms
Power SupplyDC 9V Negative Center
SpecificationGUITAR EFFECT PEDAL
FeatureANALOG EFFECT PEDAL
Dimension12/6/5cm (with box)
Weight0.22kg
Package ContainsBASS EQUALIZER Pedal / User Manual / Box

Questions about this item

What comes in the box with the Rowin LEF-317B and what must I buy separately?

The package includes the bass EQ pedal, a user manual and the packing box. A 9 V DC centre-negative power adapter is not included and must be purchased separately.

Which frequency centres does this 5-band EQ cover and how much boost or cut is available per band?

The five sliders are centred at 62.5 Hz, 125 Hz, 500 Hz, 1 kHz and 4 kHz, each offering ±18 dB of gain adjustment plus a master level control.

How much current does the Rowin LEF-317B draw from a 9 V supply once it is on a pedalboard?

The pedal consumes 26 mA at 9 V DC, so a standard 9 V adapter rated for at least that current will power it reliably.

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