Carvin Introduces the KOA Acoustic Guitar Preamp

The KOA Acoustic Preamp offers classic, natural acoustic tone with unprecedented tonal control and extended headroom.

Designed for performing guitarists and pro musicians, the Koa preamp offers classic, natural acoustic tone with unprecedented tonal control and extended headroom. The Koa begins with a boutique flat response and adds extensive tone capabilities, allowing you to carve out your signature sound.

The pedal’s interface is intuitive and well laid out, making it easy for you to adjust your acoustic guitar settings on-the-fly. Harmonic content increases as you turn up the INPUT GAIN control, producing the rich harmonics you desire from your preamp. Lightweight, compact design, bullet-proof construction, and a list of indispensable features assure the Koa will be the heart of your tone for years to come.

Key Koa features include:

  • Preamp GAIN and master VOLUME controls
  • BLEND control adjusts the EQ/dry mix
  • Mid sweep semi-parametric EQ
  • COMPRESSOR: Threshold and Strength controls
  • Effects Loop
  • True Bypass
  • Switchable MUTE
  • THRU/TUNER output jack independent of MUTE switch
  • -10dB Attenuation switch
  • DIRECT OUT balanced XLR and 1/4-inch
  • 9V Power supply included. 90-230VAC, 50-60Hz
  • Battery compartment for 9V battery operation

Carvin KOA Acoustic Guitar Preamp

The KOA acoustic preamp is available for $239. For more information, please visit

With its powerful speaker and long-lasting lithium battery, the Nomad is the ideal solution for portable premium tone.

Read MoreShow less
Stompboxtober Is here!
Stompboxtober Is here!

Check back each day at 11:00 am Central Starting Oct. 1 for your daily chance to win! Scroll down for today's giveaway.

Testing materials is the foundation of any scientifically based build. Here, an FFT analyzer is used to track sonic response.

Data-based building is nothing new in the acoustic-guitar world, but its impact continues to grow.

When I first took my stab at lutherie, I mostly did maintenance work. Fret work, bone nuts and saddles, and basic setups made up the bulk of my daily agenda. I was exposed to many great guitars, both acoustic and electric. And even though I played electrics out on the gig, my primary interest was always acoustic guitars. I was just obsessed with figuring out what made them tick. Once I moved into instrument making, I found it difficult to produce the concert-level quality instruments I had become so accustomed to in my repair days. I was inspired to take a more analytic approach to instrument making, which was ultimately an attempt to tighten-up the consistency, tone, and overall playing experience for my customers.

Read MoreShow less