The Crazy Tube Circuits Heatseeker Pre-Amp is a Crazy Tube Circuits distortion pedal. Close alternatives include the Dunlop Custom Badass and the Fender MTG LA Tube Distortion. It pairs well with the Hiwatt Custom DR20H and the Fender Hot Rod Series Blues Junior 15W 1x12 Tube Guitar.

Crazy Tube Circuits Heatseeker Pre-Amp

Crazy Tube Circuits · pedal

The Crazy Tube Circuits Heatseeker is a high-gain preamp and overdrive from the Greek boutique manufacturer, providing the thick, sustained, high-gain distortion character of pushed vintage preamp stages in a boutique pedal format. Covers the gain range from warm crunch through high-gain saturation with the compression and harmonic density of a high-quality tube preamp at full gain. Designed for players seeking boutique-grade high-gain performance with the component quality and refined sound of CTC designs. Made in Greece by Crazy Tube Circuits.

What stands out

  • “The Crazy Tube Circuits Heatseeker is a high-gain preamp and overdrive from the Greek boutique manufacturer, providing the thick, sustained, high-gain distortion character of pushed vintage preamp stages in a boutique pedal format”

    — from the listing

  • “Covers the gain range from warm crunch through high-gain saturation with the compression and harmonic density of a high-quality tube preamp at full gain”

    — from the listing

  • “High-gain preamp and overdrive providing thick, sustained saturation with the compression and harmonic density of a pushed vintage tube preamp in a boutique Greek pedal”

    — from the community notes

  • “Discrete preamp circuit delivers genuine warmth and harmonic richness that passive buffer designs cannot match”

    — from the reviews

  • “The subtle character of the preamp enhancement may be underwhelming to players who want obvious tone transformation”

    — from the reviews

  • high gain
  • compression
  • distortion
  • boutique
  • full
  • thick
  • harmonic

Genres the Crazy Tube Circuits Heatseeker Pre-Amp is commonly used in

  • Hard Rock
  • Alternative
    citedInferred from shared tonal signals, not a stated genre tag.
  • Metal
    citedInferred from shared tonal signals, not a stated genre tag.
  • Rock
    citedInferred from shared tonal signals, not a stated genre tag.
  • Blues
    citedInferred from shared tonal signals, not a stated genre tag.
  • Classic Rock
    citedInferred from shared tonal signals, not a stated genre tag.

Amps that pair well with the Crazy Tube Circuits Heatseeker Pre-Amp

Hiwatt Custom DR20H

Hiwatt

30% match

pushes an already-dirty tonePushes an already-dirty tone harder and tightens it up. (high gain → tight)

Feed a high gain signal into Hiwatt Custom DR20H and it comes out closer to tight

Comes later in the signal chain

Fender Hot Rod Series Blues Junior 15W 1x12 Tube Guitar

amplifier

30% match
$789.99via Reverb

pushes an already-dirty tonePushes an already-dirty tone harder and tightens it up. (high gain → mid-forward)

Fender Hot Rod Series Blues Junior 15W 1x12 Tube Guitar pushes a high gain tone toward mid-forward

Comes later in the signal chain

Aguilar SL110 Fawn Limited

Aguilar

tonal match

Comes later in the signal chain

Stack Aguilar SL110 Fawn Limited on top and a high gain tone tightens toward tight

EBS Magni 502 2x10 bass combo

Ebs

tonal match
$1047.12via Reverb

Comes later in the signal chain

EBS Magni 502 2x10 bass combo pushes a high gain tone toward tight

Egnater Renegade 65 4x10 Combo

Egnater

tonal match

Comes later in the signal chain

Egnater Renegade 65 4x10 Combo pushes a high gain tone toward tight

Marshall 2203KK Kerry King JCM800

Marshall

tonal match

Comes later in the signal chain

Feed a high gain signal into Marshall 2203KK Kerry King JCM800 and it comes out closer to mid-forward

Ceriatone HRM 50

Ceriatone

tonal match

Comes later in the signal chain

Ceriatone HRM 50 pushes a high gain tone toward mid-forward

Gallien-Krueger Legacy 410

Gallien Krueger

tonal match

Comes later in the signal chain

Gallien-Krueger Legacy 410 pushes a high gain tone toward tight

Pedals that stack with the Crazy Tube Circuits Heatseeker Pre-Amp

Catalinbread VariOboost

Catalinbread

18% match

fills a frequency gapFills in a frequency range the other side doesn't cover, instead of piling more onto what's already there. (warm → bright)

Catalinbread VariOboost leans bright right where the warm tone needs it

Comes earlier in the signal chain

Ashdown Triple Shot

Ashdown

16% match
$179.99via Reverb

pushes an already-dirty tonePushes an already-dirty tone harder and tightens it up. (high gain → mid-forward)

Ashdown Triple Shot takes that high gain character and pushes it toward mid-forward

Comes earlier in the signal chain

TC Electronic SCF Gold SE Stereo

TC Electronic

13% match

sits in the right chain slotPlaced for where it does its job cleanly in the chain, not for a tonal interaction with the anchor.

Put TC Electronic SCF Gold SE Stereo after Crazy Tube Circuits Heatseeker Pre-Amp in the signal chain, clear of Crazy Tube Circuits Heatseeker Pre-Amp's own gain stage

Comes later in the signal chain

Boss RV-6 Reverb

Boss

10% match
$141.34via Reverb

sits in the right chain slotPlaced for where it does its job cleanly in the chain, not for a tonal interaction with the anchor. (high gain → ambient)

Put Boss RV-6 Reverb after Crazy Tube Circuits Heatseeker Pre-Amp in the signal chain, clear of Crazy Tube Circuits Heatseeker Pre-Amp's own gain stage — goes in the amp's FX loop (or last, into a clean amp)

Comes later in the signal chain

Wampler Ego Compressor

pedal

10% match

shapes the dynamic responseShapes how the tone responds to picking dynamics rather than its frequency or gain.

Crazy Tube Circuits Heatseeker Pre-Amp's own high gain character is the real reason this is worth trying

Comes earlier in the signal chain

Walrus Audio Fathom

Walrus Audio

9% match
$181.66via Reverb

sits in the right chain slotPlaced for where it does its job cleanly in the chain, not for a tonal interaction with the anchor. (high gain → ambient)

Walrus Audio Fathom's ambient voice goes after Crazy Tube Circuits Heatseeker Pre-Amp in the signal chain — it's not there to compete with Crazy Tube Circuits Heatseeker Pre-Amp's own high gain character — goes in the amp's FX loop (or last, into a clean amp)

Comes later in the signal chain

MXR CAE Wah

MXR

tonal match
$121.14via Reverb

Comes earlier in the signal chain

MXR CAE Wah belongs in front of Crazy Tube Circuits Heatseeker Pre-Amp, since a wah tracks picking dynamics best on the raw signal

TC Electronic Spark Booster

TC Electronic

tonal match
$75.05via Reverb

Comes earlier in the signal chain

Stack TC Electronic Spark Booster on top and a high gain tone tightens toward clean boost

Alternativessee all similar tone character →

Dunlop Custom Badass

Dunlop

58% similarity
$169.99via Reverb

Shared character: higher gain, hard rock, compression

Fender MTG LA Tube Distortion

Fender

57% similarity
$173.62via Reverb

Shared character: compression, hard rock, warm

Friedman BE-OD Deluxe

Friedman

57% similarity
$229.49via Reverb

Shared character: hard rock, thickness, crunch

Carl Martin TOD High-Gain Overdrive

Carl Martin

54% similarity

Shared character: dynamic range, hard rock, compression

Crazy Tube Circuits Orama

Crazy Tube Circuits

53% similarity
$289.76via Reverb

Shared character: higher gain, compression, subtle

Ibanez Tube King TK999OD Overdrive

Ibanez

53% similarity

Shared character: warm, stage, overdrive

Benson Amps Portable Distortion 424 MKII

Benson Amps

53% similarity
$199via Reverb

Shared character: signal, circuit, compression

Crazy Tube Circuits Motherload

Crazy Tube Circuits

53% similarity
$174.72via Reverb

Shared character: hard rock, thickness, distortion

K Pedals Vintage Preamp

K Pedals

53% similarity

Shared character: compression, subtle, warm

Behringer OD300 Overdrive Distortion

Behringer

53% similarity
$29.75via Reverb

Shared character: higher gain, circuit, crunch

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

Dunlop

52% similarity

Shared character: circuit, compression, warm

DSM Humboldt Electronics Silver Linings

Dsm Humboldt Electronics

51% similarity
$229via Reverb

Shared character: compression, full, stage

See all alternatives to the Crazy Tube Circuits Heatseeker Pre-Amp (cheaper + boutique) →

Questions people ask

What are good alternatives to the Crazy Tube Circuits Heatseeker Pre-Amp?+

The closest matches in character are the Dunlop Custom Badass, the Fender MTG LA Tube Distortion, the Friedman BE-OD Deluxe.

What pairs well with the Crazy Tube Circuits Heatseeker Pre-Amp?+

Strong matches from rig and tone-complementarity evidence: Hiwatt Custom DR20H, Fender Hot Rod Series Blues Junior 15W 1x12 Tube Guitar, Aguilar SL110 Fawn Limited — Feed a high gain signal into Hiwatt Custom DR20H and it comes out closer to tight.

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