Seafoam Plus Chorus

The Seafoam Plus Chorus by Keeley Electronics is a versatile pedal offering various modes and controls for creating rich chorus and vibrato effects. The technical specifications for the Seafoam Plus Chorus are as follows:

Modes:
1. Dimension Chorus – Automatic Double Tracker
- Rate/Tune: Adjusts the Tune/Pitch of Double Tracked voices by 0-21 cents
- Depth/Time: Adjusts the time delay in the Double Tracked voices by 0-21 milliseconds (ms)
- Space: Abbey Chamber Reverb

2. Seafoam Chorus
- Rate: 0.1 – 7Hz
- Depth: Variable
- Space: Tone Control – +/- 6dB @ 500Hz

3. Dual Seafoam Chorus
- Rate: 0.1 – 7Hz
- High Depth: 0-10ms
- Low Depth: 0-15ms
- Crossover @ 659Hz (12th fret of Hi E). Rate controls both high and low (Low 0.666 of High). High is delayed by 8ms, Low delayed by 6ms

4. Bass Flange
- Rate: 0.1 – 3.5Hz
- Flange Depth: Variable
- Space: Controls positive and negative feedback, 0 feedback in the center

5. Seafoam Bass
- Rate: 0.1 – 7Hz
- Depth: Variable
- Tone: -6dB @ 100Hz to +6dB @ 200Hz

6. Dual Bass
- Rate: 0.1 – 7Hz
- High Depth Chorus: Variable
- Low Depth Tremolo: Variable
- High/Low crossover @ 200Hz (12th Fret G). Rate controls both high and low (Low 0.666 of High). High is delayed by 8ms, Low is a tremolo

The Seafoam Plus Chorus pedal features three modes: ADT, Seafoam, and Dual Chorus. In ADT Mode, Seafoam layers three distinct voices on top of one another, imparting slight delays and detune to each, for a luscious effect that Keeley has dubbed “True Chorus”. In Seafoam Mode, the pedal operates similarly to a traditional chorus pedal, while in Dual Chorus Mode, it is a split band chorus with a division at the high E string, allowing players to independently control the effect depth for the highs and lows. There is also a Bass Mode with integrated flanger for additional versatility.

Controls:
- Rate
- Depth
- Space
- Mix

The Seafoam Plus Chorus pedal offers a wide range of functionality and control, making it suitable for guitar and bass players seeking to create lush, wide, and musical chorus and vibrato effects.