Tech 21 Boost Chorus – Sound Clips 1


Round 1: Now You Hear It, Now You Don’t…



Bass: Fender Jazz (1972, passive tone control neutral)

Strings: Dunlop Rounds (nickels, 45 – 105, fresh)

Cable: DiMarzio EP1700

Interface: SPL Crimson

DAW: Logic Pro X

Drums: Toontrack EZ Drummer


In this first round of sound clips, I wanted to test the Boost Chorus Bass’ ability to be very subtle on groove playing, but very obvious on for high-frequency material such as flageolets / overtones.

The example is a palm muted groove with two instances of flageolets – the first legato and the second staccato.

First up is a setting with SPEED and DEPTH at around 1 o’clock and a 25% MIX balance. There are two examples of this setting – with and without the MULTI VOICE switch engaged. But first the DRY version.


I think the task is solved beautifully by the Boost Chorus Bass pedal. During the groove part, the chours is veru subtle, but as soon as the overtones kick in, the rich chorus-y tone is there instantly. A little more with the MULTI VOICE switch punched in.

Next up, let’s try to change the MIX balance to favor the wet signal more. In the next two clips the MIX is an even 50% and in the last two clips it’s at 100%.

As you may have noticed, I changed the settings a bit between example 1-2 and 3-4, but each pair share the same setting except for the MULTI VOICE. At these higher MIX settings, you begin to also sense the chorus effect on the groove part – especially when the MULTI VOICE is punched in.

Depending on what the goal is, I’d probably go for a lighter MIX setting in this case.

In the next round, let’s check out the Boost Chorus on some chords…