Alternatives to the Crazy Tube Circuits Heatseeker Pre-Amp

Dunlop Custom Badass

Shared character: higher gain, hard rock, compression

Fender MTG LA Tube Distortion

Shared character: compression, hard rock, warm

Friedman BE-OD Deluxe

Shared character: hard rock, thickness, crunch

Carl Martin TOD High-Gain Overdrive

Shared character: dynamic range, hard rock, compression

Crazy Tube Circuits Orama

Shared character: higher gain, compression, subtle

Ibanez Tube King TK999OD Overdrive

Shared character: warm, stage, overdrive

Benson Amps Portable Distortion 424 MKII

Shared character: signal, circuit, compression

Crazy Tube Circuits Motherload

Shared character: hard rock, thickness, distortion

K Pedals Vintage Preamp

Shared character: compression, subtle, warm

Behringer OD300 Overdrive Distortion

Shared character: higher gain, circuit, crunch

Dunlop MXR M78 Custom Modified OD, also known as the Bad Ass Modified OD

Shared character: circuit, compression, warm

DSM Humboldt Electronics Silver Linings

Shared character: compression, full, stage

Hermida Zendrive

Shared character: compression, thickness

Suhr Riot

Shared character: hard rock, crunch, distortion

Rarebird effects Transformer Preamp 63

Shared character: circuit, subtle, warm

Carl Martin Crush Zone

Shared character: hard rock, thickness, distortion

Electro-Harmonix Hellmaster Distortion

Shared character: higher gain, hard rock, crunch

Univox UD-50 Uni-Drive

Shared character: hard rock, thickness, subtle

Mission Engineering NuAudio Nutube Velocity Overdrive/Distortion

Shared character: high gain settings, compression, subtle

Abasi Pathos Distortion

Shared character: compression, subtle, crunch

Airis Effects SPEC-Defier

Shared character: hard rock, thickness, crunch

Electro-Harmonix Howitzer

Shared character: warm, stage

Catalinbread Carbide Purple Gaze

Shared character: higher gain, hard rock, circuit

Behringer VT999 Vintage Tube Monster

Shared character: compression, distortion, warm