Pedals that stack with the Crazy Tube Circuits Killer V California Style Preamp/Vibrato

Electro-Harmonix Electric Mistress

Electro-Harmonix Electric Mistress's lush voice goes after Crazy Tube Circuits Killer V California Style Preamp/Vibrato in the signal chain — it's not there to compete with Crazy Tube Circuits Killer V California Style Preamp/Vibrato's own compressed character

Browne Amplification Gritador

Feed a high gain signal into Browne Amplification Gritador and it comes out closer to mid-forward

Fulltone OCD

Fulltone OCD's own full character is the real reason this is worth trying

Walrus Audio Fathom

Walrus Audio Fathom's ambient voice goes after Crazy Tube Circuits Killer V California Style Preamp/Vibrato in the signal chain — it's not there to compete with Crazy Tube Circuits Killer V California Style Preamp/Vibrato's own compressed character — goes in the amp's FX loop (or last, into a clean amp)

Meris Mercury7 Reverb

Keep Meris Mercury7 Reverb after Crazy Tube Circuits Killer V California Style Preamp/Vibrato in the signal chain, clear of Crazy Tube Circuits Killer V California Style Preamp/Vibrato's own gain stage — goes in the amp's FX loop (or last, into a clean amp)

Electro-Harmonix Pico Deep Freeze

Electro-Harmonix Pico Deep Freeze leans toward ambient, and that's a real, usable character to pair with