The Amptweaker Big Rock Pro II is an Amptweaker distortion pedal, currently around $299. Close alternatives include the EarthQuaker Devices Zeqd and the Tech 21 PED PSA Preamp 30 TH ANN. It pairs well with the Marshall Origin 50 Head and the Laney LA30BL 30W Tube Amplifier.
Amptweaker Big Rock Pro II
Amptweaker · pedal
The Amptweaker Big Rock Pro II is a high-feature rock distortion pedal designed by James Brown, expanding on the Big Rock Pro with Depth Finder and DeFizzerator processing for advanced tone control. It includes a balanced DI output with cab simulation and a headphone output, plus three separate effects loops for complex signal routing. Fat and Smooth switches allow the pedal to replicate tones from the TightRock and FatRock families. The integrated DI and studio-quality output make it suitable for direct recording as well as traditional amp use.
What stands out
“Built-in Depth Finder and DeFizzerator add bass frequency sculpting and reduction that meaningfully improve cab interaction and DI recording tones”
— from the reviews
“Well suited for studio recording via the built-in cab-sim DI and live use through its three effects loops”
— from the community notes
“the amptweaker big rock pro ii is a high-feature rock distortion pedal designed by james brown”
— from the listing
“fat and smooth switches allow the pedal to replicate tones from the tightrock and fatrock families”
— from the listing
“Balanced DI is a genuine studio-quality output”
— from the reviews
- di
- studio
- rock
- fat
- smooth
- recording
- balanced
- headphone
Good for
- Silent Recording
- Silent Stage
Price updated Oct 23, 2026
Genres the Amptweaker Big Rock Pro II is commonly used in
- Rock
- Hip Hop
cited
Inferred from shared tonal signals, not a stated genre tag. - Folk
cited
Inferred from shared tonal signals, not a stated genre tag. - Metal
cited
Inferred from shared tonal signals, not a stated genre tag. - Alternative
cited
Inferred from shared tonal signals, not a stated genre tag. - Acoustic
cited
Inferred from shared tonal signals, not a stated genre tag.
Amps that pair well with the Amptweaker Big Rock Pro II
Marshall Origin 50 Head
Marshall
30% matchpushes an already-dirty tonePushes an already-dirty tone harder and tightens it up. (high gain → mid-forward)
Marshall Origin 50 Head pushes a high gain tone toward mid-forward
Comes later in the signal chain
Laney LA30BL 30W Tube Amplifier
Laney
30% matchpushes an already-dirty tonePushes an already-dirty tone harder and tightens it up. (high gain → mid-forward)
Laney LA30BL 30W Tube Amplifier pushes a high gain tone toward mid-forward
Comes later in the signal chain
Aguilar SL110 Fawn Limited
Aguilar
tonal matchComes later in the signal chain
Aguilar SL110 Fawn Limited takes that high gain character and pushes it toward tight
EBS Magni 502 2x10 bass combo
Ebs
tonal matchComes later in the signal chain
EBS Magni 502 2x10 bass combo pushes a high gain tone toward tight
Gallien-Krueger Legacy 410
Gallien Krueger
tonal matchComes later in the signal chain
Gallien-Krueger Legacy 410 pushes a high gain tone toward tight
Gallien-Krueger Legacy 210 Bass Combo
Gallien Krueger
tonal matchComes later in the signal chain
Gallien-Krueger Legacy 210 Bass Combo takes that high gain character and pushes it toward tight
Gallien-Krueger Fusion 210
Gallien Krueger
tonal matchComes later in the signal chain
Stack Gallien-Krueger Fusion 210 on top and a high gain tone tightens toward mid-forward
Phil Jones BG-400 Suitcase Compact Bass Combo
Phil Jones
tonal matchComes later in the signal chain
Feed a high gain signal into Phil Jones BG-400 Suitcase Compact Bass Combo and it comes out closer to mid-forward
Pedals that stack with the Amptweaker Big Rock Pro II
J. Rockett Archer
pedal
11% matchpushes an already-dirty tonePushes an already-dirty tone harder and tightens it up. (high gain → mid-forward)
What J. Rockett Archer brings here leans toward high headroom — that's worth building a pairing around
Comes earlier in the signal chain
Ashdown Triple Shot
Ashdown
11% matchpushes an already-dirty tonePushes an already-dirty tone harder and tightens it up. (high gain → mid-forward)
Stack Ashdown Triple Shot on top and a high gain tone tightens toward mid-forward
Comes earlier in the signal chain
Electro-Harmonix Deluxe Electric Mistress
Electro-Harmonix
10% matchsits 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 → shimmer)
Run the Deluxe Electric Mistress's shimmering analog flange after Big Rock Pro II's own fat, recording-ready gain settles.
Comes later in the signal chain
Mooer A7 Ambience
Mooer
9% matchsits 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)
Run Mooer A7 Ambience after Amptweaker Big Rock Pro II in the signal chain, clear of Amptweaker Big Rock Pro II's own gain stage — goes in the amp's FX loop (or last, into a clean amp)
Comes later in the signal chain
Walrus Audio Fathom
Walrus Audio
9% matchsits 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)
Run Fathom's lush, studio-grade ambient reverb after Big Rock Pro II's own fat, recording-ready gain settles. — goes in the amp's FX loop (or last, into a clean amp)
Comes later in the signal chain
Wampler Ego Compressor
pedal
8% matchshapes the dynamic responseShapes how the tone responds to picking dynamics rather than its frequency or gain.
Run the Ego Compressor's transparent, punchy compression ahead of Big Rock Pro II for even attack before the fat DI gain reacts.
Comes earlier in the signal chain
MXR CAE Wah
MXR
tonal matchComes earlier in the signal chain
Put MXR CAE Wah in front of Amptweaker Big Rock Pro II: a wah tracks picking dynamics best on the raw signal
JAM Pedals RetroVibe Mk.4
Jam Pedals
tonal matchComes later in the signal chain
JAM Pedals RetroVibe Mk.4 pushes a high gain tone toward mid-forward
Cheaper alternatives
Palmer Pepamp Mk II
Palmer
51% similarityShared character: recording, distortion, high gain settings
Palmer Pocket AMP MK2
Palmer
50% similaritySimilar voicing: pristine
Boss SD-1 Super OverDrive
Boss
46% similarityShared character: recording, boost, distortion
MXR Super Badass Distortion
MXR
45% similarityShared character: boost, distortion, high gain settings
Maxon OD808
Maxon
45% similarityShared character: boost, smooth, distortion
Boss DS-1X
Boss
44% similarityShared character: fat, smooth, distortion
Boutique & premium upgrades
Tone King Imperial Preamp
Tone King
49% similarityShared character: recording, studio
JHS Colour Box V2 10th Anniversary
JHS Pedals
47% similarityShared character: distortion, studio
Laney Billy Corgan signature Amp
Laney
43% similarityShared character: recording, distortion
Similar charactersee all similar tone character →
EarthQuaker Devices Zeqd
EarthQuaker Devices
51% similarityShared character: recording, boost, studio
Tech 21 PED PSA Preamp 30 TH ANN
Tech 21
51% similarityShared character: high gain settings, studio
Suhr Isoline
Suhr
47% similarityShared character: recording, studio
JHS Colour Box V2
JHS Pedals
47% similarityShared character: recording, boost, distortion
JHS Colour Box
JHS Pedals
46% similarityShared character: high gain settings, recording, smooth
Strymon Riverside
Strymon
46% similarityShared character: boost, smooth, distortion
See all alternatives to the Amptweaker Big Rock Pro II (cheaper + boutique) →
Questions people ask
What are good alternatives to the Amptweaker Big Rock Pro II?+
The closest matches in character are the EarthQuaker Devices Zeqd, the Tech 21 PED PSA Preamp 30 TH ANN, the Suhr Isoline. Budget picks: Palmer Pepamp Mk II, Palmer Pocket AMP MK2, Boss SD-1 Super OverDrive. Boutique upgrades: Tone King Imperial Preamp, JHS Colour Box V2 10th Anniversary, Laney Billy Corgan signature Amp.
What pairs well with the Amptweaker Big Rock Pro II?+
Strong matches from rig and tone-complementarity evidence: Marshall Origin 50 Head, Laney LA30BL 30W Tube Amplifier, Aguilar SL110 Fawn Limited — Marshall Origin 50 Head pushes a high gain tone toward mid-forward.
How much does the Amptweaker Big Rock Pro II cost?+
Around $299 (live listing price, updated Oct 23, 2026).