Martin OMCPA4R - Natural

6-string Acoustic-electric Guitar with Solid Spruce Top, Rosewood Back and Sides, Richlite Fingerboard, and Fishman Electronics - Natural Polished Gloss
Martin OMCPA4R - Natural image 1
Martin OMCPA4R - Natural image 1
Sweetwater Savings: $500.00 MSRP: $2,399.00
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Martin OMCPA4R - Natural
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A Stage-ready Martin 000

What happens when you merge the classic look and feel of a traditional Martin acoustic guitar with the convenience of today's modern acoustic-electric? You get the Martin Performing Artist OMCPA4R. The Performing Artist OMCPA4R is crafted using nothing but the finest tonewoods, with solid Sitka spruce for the top and solid rosewood making up the back and sides. Incredibly natural-sounding Fishman F1 Analog electronics, a player-friendly neck carve, and a convenient cutaway, and the Martin Performing Artist OMCPA4R is an inspiration to play.

Classic tonewood combination for big sound

You just can't beat the sound of solid spruce and solid genuine rosewood. The Martin Performing Artist OMCPA4R spares no expense on its tonewoods. You'll love the warm low end and crisp highs of the OMCPA4R's solid East-Indian rosewood back and sides, and they look fantastic. The OMCPA4R is topped with a stunning piece of solid Sitka spruce, adding power, clarity, and nuance to the voice of the instrument. And the hardwood neck is capped with a smooth and bright-sounding piece of Richlite that feels immaculate and looks even better.

Modern electronics for the modern performer

Martin teamed with Fishman to outfit the OMCPA4R with their F1 Analog electronics system. Far more than a simple pickup system, the discreetly mounted F1 Analog system offers an unbelievable amount of control for a two-knob affair. The volume control can be pushed to activate the accurate onboard tuner. And the tone control chooses between a wonderfully EQ'd scooped tone at the clockwise position, and blends in the mid-emphasized direct piezo sound as you turn it counter-clockwise. Pushing the tone control offers two choices of phase for controlling feedback and attaining optimal low-end performance.

Comfortable and great-playing neck

Whether you need to survive long recording sessions or plan to play out late into the night, you'll be glad you got a Performing Artist OMCPA4R acoustic guitar. The OMCPA4R features one of Martin's amazing Performing Artist series necks. The profile's slimmer feel is ideal for fingerstyle players and those who need to get around their fretboard unimpeded. It's very popular at Sweetwater for its ability to greatly reduce hand fatigue. And you'll love the feel of the smooth satin neck finish.

Martin OMCPA4R Performing Artist Features:

  • Acoustic guitar designed for modern performers
  • Legendary Martin 000-14 body style
  • Solid Sitka spruce top is the standard for power and clarity
  • Solid East Indian rosewood back and sides bring forward warm and present low end
  • Fishman F1 Analog electronics are easy to use and sound natural
  • Comfortable artist profile neck
  • Richlite fretboard is a sustainable and great-sounding alternative to ebony

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

Acoustic Guitar Buying Guide

Tech Specs

String Type Steel
Number of Strings 6
Body Shape 000-14 Fret
Body Style Single Cutaway
Left-/Right-handed Right-handed
Color Natural
Finish Polished Gloss (top), Satin (neck, back, and sides)
Top Wood Solid Sitka Spruce
Back & Sides Wood Solid Rosewood
Body Bracing Hybrid X Scalloped, 5/16" Solid Sitka Spruce
Binding Black Boltaron
Neck Wood Select Hardwood
Neck Shape Performing Artist Profile
Fingerboard Material Black Richlite
Fingerboard Inlay White ABS Dots
Number of Frets 20 (total), 14 (clear)
Scale Length 25.4"
Tuning Machines Chrome Enclosed with Large Buttons
Bridge Material Black Richlite
Nut/Saddle Material White Corian/16" Radius Compensated White TUSQ
Nut Width 1.75"
Body Length 19.375"
Body Width 15"
Body Depth 4.125"
Overall Length 39.8125"
Electronics Fishman F1 Analog
Strings Martin SP Lifespan Phosphor Bronze Light Gauge
Case Included Hardshell
Manufacturer Part Number OMCPA4ROSEWOOD

Customer Reviews

Based on 5 reviews
Write your review

One year later

I purchased this guitar from Sweetwater in December of 2015. A year later and all I can say is that this is by far the best guitar you can get for the money. Solid rosewood back and sides give this guitar a very warm tone and the playability of this Martin is phenomenal. The action and intonation came perfectly setup from Sweetwater and the customer service you get is the number one reason to buy from Sweetwater. My sales rep (Matt) sent me all of their photos and communicated with me during the entire process (even followed up with me after receiving the guitar to make sure I was happy). I primarily play this guitar at my home church and it sounds amazing plugged in.
Music background: Amateur, primarily praise and worship

Martin OMCPA4R

I always liked Martin guitars for their balanced and mellow tone. The Rosewood really brings this out more so. I can't find any faults after playing this guitar for a month. Came pretty much really to play out of the case. I did very little setup to it to customize if for me. Fisher electronics work well and sounds good through my fender acoustic amp, What drove me to this guitar was the thin neck. The performing artistic neck is very comfortable and easy to play on. I can play this guitar for hours without any left hand discomfort or fatigue. The size of the OM version is perfect for me and it sits nicely in my lap. This guitar is quality built and the finish is beautiful. I play mostly jazz standards and they sound great on this guitar. I'm very pleased with it.

amazing guitar

a classic martin om would utilize a dove tail neck joint and full gloss finish.the omcpa4 rosewood uses the a frame hybrid bracing [with satin finish on the back and sides]. imho this frees up the top more so than martin's dove tail joint and the required bracing. the A frame bracing supports the neck far better than a dove tail assembly. that said..this guitar maintains the martin tone albeit a bit different, it has it's own distinct tone. it does not sound like my M-36 but still very nice across the entire tonal spectrum. all this on just straight up acoustic. plugged in... the fishman f1 analog sounds pretty good but does not have any capability for EQ. the on board tuner works well. some say this guitar is a martin/taylor hybrid...fair enough. however, it is not nearly as bright as a taylor so if you are a taylor person you may not like the tone.the action out of the box was a bit high but a quick set up was easy to accomplish. workmanship /quality was up to the usual high standards of a martin guitar. this is my third martin and it is a very cool guitar with enough classic martin tone to satisfy. if you don't like the satin [ dead flat really ] a low particle size polishing compound can bring the sheen up to a true satin or even a semi gloss sheen without any mech. buffing. if you like om's this guitar will not disappoint.
Music background: hobby

Solid guitar at a great price!

I bought this guitar over a year ago to replace my Epiphone Masterbilt. I needed a good workhorse as I am playing numerous worship services and studio sessions each week. This Martin does not disappoint. First impression right out of the case was that the action was a little high for my liking (the Masterbilt was incredibly low). After playing on the guitar for a week or so, the wood relaxed enough and became quite comfortable, no set-up required. The tone was phenomenal! The satin finish on the rosewood back and sides gives this smaller body all the punch necessary for many styles of music. The glossed spruce top makes the upper mids and highs bright enough to provide a wonderful balance on tone. I record the guitar often (double miked) and most of the time, I do not have to adjust the EQ on either channel. This guitar is also used multiple times a week for worship services where it is plugged in and played through a house PA system with many compliments on the tone of the acoustic as well as its ability to sit in the mix (we have a very large, professional worship band) without getting lost. As for the review from the previous poster, I cannot say I have ever hooked this guitar up to an amplifier or been disappointed by the Fishman pickups through any PA system I've played through. I highly recommend this guitar to anyone who needs a solid, dependable, great sounding instrument at this price point.
Music background: Worship band leader/guitarist, session guitarist/producer


As an acoustic guitar, the OMCPA4R is reasonable. (Obviously, the narrow body limits it somewhat in this regard.) However, when using the built-in pickup, it verges on being worse than useless. Plugged into a small combo amp, I can almost make it sound ok on finger picking. The low mids get a bit muddy, but bearable. Start strumming though? No way. The boomy low-mids become an eardrum shattering mass of disturbing sound. Wow! Really? Yes, sad to say. Fishman FAIL.Now, plug it into a full-range sound system (like your PA) and it's even more worthless. The thumpy, bangy, low-mids wash everything out when strumming this guitar.At this price point, Martin should have done a much better job. All I can say (since my 30-day return has already passed) is "oops".
Music background: singer-songwriter, improviser
See also: 6 string acoustic guitars, Martin, Martin 6-string Acoustic Guitars, Martin Acoustic / Electric Guitars