Pedals that stack with the Neworld Music EHX Key 9

Beetronics Nectar

Into a transparent tone, Beetronics Nectar brings the low gain it's missing

Walrus Audio Eons

Run Walrus Audio Eons into that transparent platform and it finally gets some low gain

Neunaber Wet Mono Reverb Pedal

Put Neunaber Wet Mono Reverb Pedal after Neworld Music EHX Key 9 in the signal chain, clear of Neworld Music EHX Key 9's own gain stage — goes in the amp's FX loop (or last, into a clean amp)

Meris Polymoon

Keep Meris Polymoon after Neworld Music EHX Key 9 in the signal chain, clear of Neworld Music EHX Key 9's own gain stage — goes in the amp's FX loop (or last, into a clean amp)