Martin BCPA4 - Natural

Acoustic-electric Bass Guitar with Spruce Top, Sapele Back and Sides, Ebony Fingerboard, Onboard Electronics, and Hard Case - Natural
Martin BCPA4 - Natural image 1
Martin BCPA4 - Natural image 1
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Martin BCPA4 - Natural
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Sensational Acoustic and Electric Bass - From One Axe

The Martin BCPA4 acoustic-electric bass guitar is ideal if you love the sound of an unplugged acoustic bass guitar but also need to plug in with the band. This axe delivers great tones, whether you're unplugged or using its built-in Fishman electronics. Martin built the BCPA4 from the ground up to perform; its solid Sitka spruce top and sapele body gives you excellent projection, gobs of detail, and incredible tonal balance, while its Special Bass neck profile gives you speed and comfort during marathon gigs. Considering an acoustic-electric bass? Martin's BCPA4 is the ticket.

Martin BCPA4 Acoustic-electric Bass Guitar at a Glance:
  • Solid tonewoods deliver big tone
  • Fishman F1 Analog electronics for rich, natural sound
  • You simply can't go wrong with a Martin guitar
Solid tonewoods deliver big tone

The jumbo-shaped Martin BCPA4 acoustic-electric bass guitar features the tested and coveted combination of spruce top and sapele back and sides. Martin used solid Sitka spruce, which gives a bright presence and projection while the warm sound of solid sapele gives you great bass response. Highly sustainable, and relatively fast-growing, sapele gives you everything that mahogany does, tonally speaking, with an extra dash of treble zing. The bottom line (pun intended) is full, balanced, highly detailed tone. You'll love the Martin BCPA4.

Fishman F1 Analog electronics for rich, natural sound

By equipping the BCPA4 with Fishman F1 Analog electronics, Martin takes the acoustic-electric back to basics. This simple pickup system gives you an onboard tuner, along with tone and volume control, and an innovative phase control that improves bass response at low volumes and suppress feedback when you're cranked. Simple and effective. Coupled with the tonewood selection, the result is pure, natural amplified sound.

You simply can't go wrong with a Martin guitar

Embracing the past, while looking to the future - it's a tightrope act, but Martin has always been able to pull it off. That's why they've consistently been a leader in acoustic guitar design, infusing their guitars with new materials, building techniques, and technologies - while producing fine instruments that age with grace to become highly sought-after, highly playable heirlooms.

Martin BCPA4 Acoustic-electric Bass Guitar Feature:
  • Solid Sitka Spruce top; solid sapele back and sides
  • J-14 fret cutaway body gives you big, balanced tone and playing comfort
  • Solid black ebony fingerboard
  • Martin's Special Bass neck profile gives you speed and comfort
  • Fishman F1 Analog electronics
  • Martin 360 hardshell case included
Whether playing acoustically or plugged-in, you'll dig the Martin BCPA4!

Why Buy Your Guitar from Sweetwater?

See how Sweetwater goes to great lengths to give you the very best online guitar buying experience. From our online Guitar Gallery that allows you to see and select the exact instrument you want to our 55-point Evaluation process and our in-house guitar techs, we take the guesswork out of buying your next guitar online.

Additional Media

Bass Guitar Buying Guide

Tech Specs

String Type Steel
Number of Strings 4
Body Shape Jumbo 14-fret
Body Style Single Cutaway
Left-/Right-handed Right-handed
Color Natural
Finish Gloss top, satin back, sides, and neck
Top Wood Solid Sitka spruce
Back & Sides Wood Solid Sapele
Body Bracing Bass A-Frame ''X''
Fingerboard Material Black EbonyEast Indian Rosewood
Binding Black Boltaron
Neck Shape Special Bass
Number of Frets 23 (17 clear)
Scale Length 34"
Tuning Machines Gotoh Bass, black
Bridge Material Solid East Indian rosewood Performing Artist Belly
Nut/Saddle Material White Corian nut; 6''-radius compensated white Tusq saddle
Nut Width 1.58"
Electronics Fishman F1 Analog
Strings Martin Studio Performance Bass Light Gauge Phosphor Bronze
Case Included Hardshell
Manufacturer Part Number 10BCPA4

Customer Reviews

Based on 3 reviews
Write your review

Simply said~It's a Martin!

I've been searching for an acoustic bass for a while. I've tried some of the acoustic bass guitars in the usual chain music stores and each one I tried was immediately returned to their spot on the wall. I was so dissatisfied and hadn't found the sound I was looking for, until I purchased the BCPA4. This bass has all the wow factors you might expect from a Martin guitar. It has great crispness while offering a warm tone. It resonates with depth. Crisp, warm and depth of sound-the combination I was searching for. My specific bass was made in Nazareth Pennsylvania which is also a huge plus for me. It's made with solid wood and has great playability. I would definite recommend that you "bite the bullet" and go for this fine acoustic bass.
Music background: Weekend Warrior

Awesome tone

Great instrument. Sound amazing acoustically. And pretty good plugged in but lots of feed back. I bought a rubber hole stopper which helped a lot same as any acoustic guitar. The onboard controls are ok. Definitely better unplugged. But I love the sound.

excellent Choice

I have been searching for a good acoustic for many years. I regretted not purchasing a Tacoma Thunder Chief when I had the opportunity 15 years ago. I have a Washburn that was so disfactory I turned it into a fretless for electric only. It could simply produce no satisfactory unplugged tone or volume. Every other acoutic i tried was always the same disappointing experience. I have tried them all at guitar shops all over the US while traveling. This resulted in always having to lug my double bass for various unplugged jams. Now that I am retired from the active music scene and no longer gigging every weekend I really wanted a smaller easier to transport alternative especially when camping, at the office or sitting on the front porch. I love having a studio in the basement but hated always having to go plug in. I did a lot of research and you tubing and decided to give the Martin a try. I could never locate a sample to play and did not want to take a chance on the internet. I discovered sweetwater and there 55 point inspection. That gave me confidence to order. I got my instrument the next day! Mine is different than listed, it is equipped as listed on the Martin site. Standard pick guard with ebony neck and bridge wood. That is a positive to me. This is a shockingly good instrument. The build quality and attention to detail are flawless. The tone and volume are outstanding. Even the bronze strings have excellent bass response. Not a dead note anywhere, no buzz, good tone to the 23rd fret. Good acoustic action, perfect truss adjustment, with 1st and 12th fretted, just a hint of light under the 5th and 7th frets. Volume with picks is silly loud, louder than my 30 year old Fender acoustic guitar with the same picks and much louder when played like a real man with your fingers. I did not purchase to plug in. But before throwing away the boxes thought I had better check the electric tone and function. I didn't play through the board or my tube amps, just a smaller mobile crate that has always been less than satisfactory with active basses. Wow, again very impressive, crisp, clean, defined, with lots of sculpting options with the push button wave selector. Can now finally use the amp! If you are on the fence, get off, plus it hurts if you are there too long. I give my full unqualified endorsement and that is not something I do very often. Both of my experience with Sweetwater and this wonderful instrument.
Music background: Veteran muscian, multiple instruments, 30 years of Bass concentration.

Sweetwater Advice

Nick Church

I already own two acoustic bass guitars, as well as about half a dozen electrics, and my bass-playing career started with a classical training on orchestral upright bass. So I consider myself fairly experienced when it comes to bass guitar tone, but I wasn't prepared for just how good the Martin BCPA4 acoustic bass would sound and play. It's beautifully made, with a very easy-to-play satin finished neck (which is a big plus for me when my hands get sweaty on a long hot summer gig). The Spruce top and Sapele body give it a naturally 'big' and harmonically complex unplugged acoustic sound. It's also a lot louder than another (very similar-looking) bass I own from a different manufacturer. It's also a great bass for unplugged practise or acoustic jams! The Fishman pickup system gives me a lot of the natural acoustic tone from the bass, sounding a lot closer to an upright bass than instruments with a more percussive 'attack'.
See also: Martin, Martin 4-string Bass Guitars, Martin Acoustic Basses