The Boss AD-2 Acoustic Preamp is a Boss preamp pedal, currently around $115.32. Close alternatives include the NuX NAI-5 Optima Air and the Tomsline Toms Line AAS-3 AC Stage Acoustic. It pairs well with the Electro-Harmonix Triangle Big Muff Pi and the Way Huge Pork Loin.
Boss AD-2 Acoustic Preamp
Boss · pedal
The Boss AD-2 Acoustic Preamp is a dedicated preamp pedal for acoustic-electric guitars, offering tone-shaping designed specifically for piezo and other acoustic pickup types rather than adapted electric guitar circuitry. It provides EQ control, a boost function, and anti-feedback processing aimed at giving acoustic performers cleaner, more natural amplified tone on stage.
What stands out
“It provides EQ control, a boost function, and anti-feedback processing aimed at giving acoustic performers cleaner, more natural amplified tone on stage”
— from the listing
“Boost function adds useful volume flexibility for solo sections”
— from the reviews
“the boss ad-2 acoustic preamp is a dedicated preamp pedal for acoustic-electric guitars”
— from the listing
“A strong, practical choice for acoustic-electric performers wanting dedicated tone shaping and feedback control in one compact pedal”
— from the reviews
“Standout strength is the built-in anti-feedback processing, a genuinely useful feature for acoustic players performing at higher stage volumes near monitors or PA speakers”
— from the community notes
Trade-offs
“addressing the common issues of harsh piezo tone and feedback that acoustic performers face when running direct into a pa or amp”
— from the community notes
“thin character piezo pickups can produce through generic amplification”
— from the reviews
- natural
- acoustic specific tone
- warmer amplified tone
- acoustic performers
- boost function
- acoustic electric performers
- acoustic players
Price updated Oct 23, 2026
Pedals that stack with the Boss AD-2 Acoustic Preamp
Electro-Harmonix Triangle Big Muff Pi
Electro-Harmonix
21% matchfills a frequency gapFills in a frequency range the other side doesn't cover, instead of piling more onto what's already there. (warm → bright)
Electro-Harmonix Triangle Big Muff Pi leans bright right where the warm tone needs it
Comes earlier in the signal chain
Way Huge Pork Loin
Way Huge
21% matchfills a frequency gapFills in a frequency range the other side doesn't cover, instead of piling more onto what's already there. (warm → bright)
Boss AD-2 Acoustic Preamp's transparent character and Way Huge Pork Loin's transparent voice sit in the same lane rather than fighting each other
Comes earlier in the signal chain
Voodoo Lab Tremolo
pedal
17% matchsits in the right chain slotPlaced for where it does its job cleanly in the chain, not for a tonal interaction with the anchor.
Voodoo Lab Tremolo's bright voice goes after Boss AD-2 Acoustic Preamp in the signal chain — it's not there to compete with Boss AD-2 Acoustic Preamp's own transparent character
Comes earlier in the signal chain
JHS 3 Series Compressor
JHS Pedals
15% matchfills a frequency gapFills in a frequency range the other side doesn't cover, instead of piling more onto what's already there. (warm → bright)
JHS 3 Series Compressor's own compressed character is the real reason this is worth trying
Comes earlier in the signal chain
Neunaber Wet Mono Reverb Pedal
pedal
12% matchsits in the right chain slotPlaced for where it does its job cleanly in the chain, not for a tonal interaction with the anchor.
Run Neunaber Wet Mono Reverb Pedal after Boss AD-2 Acoustic Preamp in the signal chain, clear of Boss AD-2 Acoustic Preamp's own gain stage — goes in the amp's FX loop (or last, into a clean amp)
Comes later in the signal chain
Strymon El Capistan
Strymon
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.
Run Strymon El Capistan after Boss AD-2 Acoustic Preamp in the signal chain, clear of Boss AD-2 Acoustic Preamp's own gain stage — goes in the amp's FX loop (or last, into a clean amp)
Comes later in the signal chain
Tone City Dry Martini
Tone City
tonal matchComes earlier in the signal chain
Tone City Dry Martini's own voicing points at a clean amp's front end, and Boss AD-2 Acoustic Preamp delivers it
Friedman Small Box Overdrive
Friedman
tonal matchComes earlier in the signal chain
Into Boss AD-2 Acoustic Preamp, Friedman Small Box Overdrive is right at home: it's built around a clean amp's front end
Cheaper alternatives
Boutique & premium upgrades
Xotic AC Plus
Xotic
57% similaritySimilar role and voicing
Mad Professor Mad-Eou
Mad Professor
52% similaritySimilar voicing: warm, transparent
Laney Ironheart LoudPedal Martin Miller Signature
Laney
48% similarityShared character: stage
Origin Effects DCX Boost
Origin Effects
42% similaritySimilar role and voicing
Carl Martin PlexiRanger
Carl Martin
42% similaritySimilar voicing: warm, transparent
Abasi Pathos Distortion
Abasi
41% similaritySimilar role and voicing
Similar character
NuX NAI-5 Optima Air
Nux
68% similarityShared character: natural, stage
Tomsline Toms Line AAS-3 AC Stage Acoustic
Tomsline
63% similarityShared character: stage
NuX NAP-5 Stageman Floor Deluxe
Nux
62% similarityShared character: stage
Mooer 001
Mooer
44% similaritySimilar role and voicing
Palmer Pocket Amp MKII Portable
Palmer
42% similaritySimilar role and voicing
See all alternatives to the Boss AD-2 Acoustic Preamp (cheaper + boutique) →
Questions people ask
What are good alternatives to the Boss AD-2 Acoustic Preamp?+
The closest matches in character are the NuX NAI-5 Optima Air, the Tomsline Toms Line AAS-3 AC Stage Acoustic, the NuX NAP-5 Stageman Floor Deluxe. Budget picks: Mooer Dual-Channel Preamp. Boutique upgrades: Xotic AC Plus, Mad Professor Mad-Eou, Laney Ironheart LoudPedal Martin Miller Signature.
What pairs well with the Boss AD-2 Acoustic Preamp?+
Strong matches from rig and tone-complementarity evidence: Electro-Harmonix Triangle Big Muff Pi, Way Huge Pork Loin, Voodoo Lab Tremolo — Electro-Harmonix Triangle Big Muff Pi leans bright right where the warm tone needs it.
How much does the Boss AD-2 Acoustic Preamp cost?+
Around $115.32 (live listing price, updated Oct 23, 2026).