Keeley Seafoam Plus Chorus Pedal

£189.00 (including VAT @ 20%)

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1 year warranty and 30 day money back guarantee included

1 year warranty and 30 day money back guarantee included

Once the product is delivered, you have 30 days to decide that you definitely want to keep it. If you decide it is not suitable for any reason, you can return it back to us for replacement or full refund, including standard delivery charges.

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Product Ref: 71420

  • Vintage and Modern Chorus tones
  • Double Tracker with Reverb
  • Tri-Mode Chorus Pedal
  • Redefines Chorus Effects
  • Works with Both Guitar and Bass

Keeley Seafoam Plus Chorus Pedal

The Keeley Seafoam Plus Chorus Pedal offers three modes of chorus with four control knobs to shape the different effects. The pedal also features two internal switches to provide even more tonal options, with one switch offering a vintage chorus or a modern chorus, and the other switch offering a bass mode to allow bass players to use the pedal. With an automatic doubler tracker mode, a basic chorus mode, and a duel chorus mode, the seafoam pedal redefines the chorus pedal.

Product Ref: 71420

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Spend another £61.00 to buy on finance Finance from £6.82 per month  

  • 15.9%
  • £8.64
  • £311.04
Pay by Finance

To make it as easy as possible for you to get the gear you want, we offer a range of instant finance options. If you spend £250 or more online, you can choose to pay over 48, 36 or 24 months. The majority of decisions are given instantly, so you could get your new gear sooner than you thought!

Representative Example

To help you understand how our finance options work, the examples below are based on a total order value of £250:

Finance APR Deposit to Pay Payments Total Payable
Classic Credit 48 Months 14.9% 14.9% No Deposit 48 months: £6.83
Final payment: £6.83
No settlement fee
Classic Credit 36 Months 15.9% 15.9% No Deposit 36 months: £8.65
Final payment: £8.65
No settlement fee
Classic Credit 24 Months 18.9% 18.9% No Deposit 24 months: £12.41
Final payment: £12.41
No settlement fee

How to Apply

Applying for finance couldn't be easier - if your order totals £250 or more, simply proceed through the checkout as normal, then select Pay by Finance on the payment page, then click the orange APPLY FOR INSTANT FINANCE button. This will start your application with V12 Retail Finance, our finance partner, and completing this form should take approximately 10 minutes.

You should get an instant answer on whether your application has been successful, though in some rare cases V12 may need to look at the application in more detail.

Please note: This is only available on orders placed via the website and is not available in store or via phone currently.

Full Description

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A Redefined Chorus Pedal

The Chorus Pedal from Keeley offers a completely new type of Chorus, one that would normally only be available on expensive DAWs or in studios. The pedal features Keeley’s true chorus and vibrato, along with a double tracker with reverb. The pedal also features an internal switch for changing the pedal to bass mode, providing voices and modes for bass guitar, including a flanger and tremolo. With another internal switch for activating vintage mode, the seafoam chorus plus offers the best of Keeley engineering.

Multiple Chorus Modes

The pedal features six different modes to choose from; an automatic doubling tracker, a seafoam chorus, and a duel chorus when the pedal is in normal mode. When switched to bass mode, the pedal offers a bass flanger, seafoam bass chorus, and a dual bass chorus. In ADT mode, the pedal produces the same double tracker that is featured in the Keeley 30ms pedal, creating a second and third voice that are at different times and pitches to create a choir effect. When switched to Bass, this mode offers a flanger effect instead.

The seafoam chorus mode produces a lush, wide chorus with a musical vibrato, simulating the sounds and tones of a vintage BBD analogue chorus unit. Also featuring an LFO, the pedal creates classic tones that can be adjusted to produce tones from bright to warm, or even a spacious chorus. In Bass mode, the seafoam chorus becomes a seafoam bass chorus, operating on a lower frequency to suit bass guitars.

Keeley’s dual chorus mode features a frequency crossed-based dual-chorus engine that can control the depth of the chorus’ highs and lows independently. In this mode you can create a deep, throbbing chorus on the low end whilst the top stays calm, or have the highs shimmer and weave whilst the low end stays fixed. When switched to bass, this mode becomes a dual bass chorus that provides a chorus on the top end with a pounding tremolo on the low end.

Rate, Depth, and Space Controls

The Seafoam Plus Chorus pedal features three control knobs for adjusting the tone of the pedal’s effects, with each mode bringing a different set of controls.

Automatic Double Tracking (ADT)

  • Rate: Tune/Pitch, 0 – 21 Cents
  • Depth: Time 0 – 21ms
  • Space: Reverb


  • Rate: Rate 0.1 – 7Hz
  • Depth: Depth
  • Space: Tone

Dual Chorus

  • Rate: Rate 0.1 – 7Hz
  • Depth: Hi Depth 0 -10ms
  • Space: Low Depth 0 -15ms

    Seafoam Bass

Bass Flanger

  • Rate: Rate 0.1 – 3.5Hz
  • Depth: Flange Depth
  • Space: -/+ Feedback

Seafoam Bass

  • Rate: Rate 0.1 – 7Hz
  • Depth: Depth
  • Space: Tone

Dual Bass

  • Rate: Rate 0.1 – 7Hz
  • Depth: Hi Depth Chorus
  • Space: Lo Depth Tremolo


  • Controls:
    • Rate
    • Depth
    • Space
    • Mix
    • Mode Selector Switch (ADT, Seafoam, Duel Chorus)
    • 2 x Internal DIP Switches (Bass Mode, Treble Cut)
  • Input: 1/4” Jack
  • Output: 1/4” Jack
  • Power supply: 9V DC 100mA
  • Height (Not Including Jacks): 4.41”
  • Width (Not Including Jacks): 2.35”