X20-7 Opus

From: €2,095.00

Over the years we have been perfecting our 7-string design and found fan frets to be the best solution to give even intonation and tension for the extra low B string. We have chosen a scale length of 27″ on the bass side running to 25 1/2″ on the treble side  giving strong, defined bass notes and sweet trebles.

  • *Step 1: Pickup Options

    • 0 €
    • 175 €
    • 295 €

    *Step 2: Dexterity

    • 0 €
    • 0 €

    *Step 3: Hardcase & Gig Bag

    Please Note: Emerald Hardcase below is included with all Artisan Guitars. 

    • 0 €
    • 195 €


Seven string guitars have very much grown in popularity in recent years, so much so that we decided to add the X20-7 to our standard range and thanks to our carbon fibre construction we are able to bring you a beautiful looking and sounding 7-string at a very competitive price.

Over the years we have been perfecting our 7-string design and found fan frets to be the best solution to give even intonation and tension for the extra low B string. We have chosen a scale length of 27″ on the bass side running to 25 1/2″ on the treble side  giving strong, defined bass notes and sweet trebles.

The X20 is a guitar designed with the player in mind and not tradition. It features an ergonomic forearm bevel and a beveled cutaway to give even greater access to the fretboard.  Our unique asymmetrical back contours make the X20 sit more comfortably and securely on your knee.

The neck has a very comfortable shallow C profile with a 2″ nut and the heel is reduced in profile to give better access to the higher frets.

Tonally this guitar has a big voice, We developed a new laminate structure to give it a richer fuller sound and with the unique soundhole placement it gives great projection to the player, while still giving your audience the fullness of your performance.

The X20-7 Opus is generally in stock or available on a short lead time (e-mail sales@emeraldguitars.com for enquiries). It is available in black only and does not include a pick-up. An LR Baggs Element Active System™ – VTC or LR Baggs Anthem SL™ are available as an upgrade. It features Gotoh 381 tuners (16:1 ratio) and has a full gloss finish on the top and a satin ‘Crystal Ice’ finish on the back and sides of the instrument. It comes with a custom-padded Emerald Guitars gig bag.

View our Current Stock List

Additional information

Scale Length

27 to 25 1/2", 685 to 648mm

Nut Width

2", 51mm

Bridge Spacing

2 5/8", 66mm

Overall Length

40", 1020mm

Max Body Width

15 ¼", 390mm

Max Body Depth

4 ¾", 120mm

Max Body Length

19", 480mm


4.4lbs, 2kg


22 medium stainless steel frets

Tuners (Default)

Gotoh 381 tuners 16:1 ratio (cosmo black)


Graphtech low friction nut and saddle


Graphtech bridge pins with Paua shell inlay

Pickup (Default)

No pickup included (available as optional extra)


High gloss finish on soundboard and Crystal Ice finish on back and sides


Custom-padded Emerald gig bag


  1. Bob Merle

    My X20-7 Opus arrived March 1, 2017, almost perfectly in tune (low B was slightly flat), after having travelled half-way around the planet. It’s my 2nd Emerald, after having purchased an X7 Synergy Opus last year, and is only the 3rd Emerald I’ve ever played (my brother bought a Chimaera Opus @ the same time I got my X7). In every measurable way, the X20-7 Opus (“Thunder”) exceeds my expectations, which were quite high based upon both other Emeralds. So, in order to hopefully make this review useful to potential buyers, I’m going to try to provide lots of detail, so here goes:
    Playability: This is my first and only experience w/ fanned-frets, and my 2nd experience w/ acoustic 7 strings, so I have only limited ability to compare to other instruments. That said, this thing plays like a dream! The action is perfect; not too high, not too low, and every string @ every fret rings clear and crisp w/ minimal, uniform effort. The fanned-frets required virtually no adjustment in my playing style/approach, and transitioning back and forth between it and my X7 (“Thumper”) is seamless. I do prefer the fanned-frets, however, and all future Emeralds I purchase will include that option, as it’s simply easier to play w/ my long fingers. The intonation is flawless, whether fretting, tapping, or using harmonics. The string spacing, unlike my previous 7 string acoustic, is ideal: not crowded yet not so wide as to be cumbersome. The weight (or lack thereof) is always a surprise w/ any Emerald instrument, and this is no exception. It’s shockingly light. The downside is that lack of weight does result in it being somewhat headstock heavy, but not enough to be annoying (I also use a Tonewood Amp, which adds just over a pound aft, which for me will more than offset this tiny drawback).
    Tone: This guitar has a really big, full, rich sound, yet despite the extended range of the fanned-fret configuration and the low string, still has a very bright, crisp level of clarity across the spectrum. It’s a bit louder than I expected it to be, and resonates and projects much more than one might anticipate.
    Finish: I don’t have any experience w/ the Artisan grade to compare it w/ the Opus finish. As a hobbiest, the Opus grade fits my budget better. That said, I REALLY like the Opus finish, w/ the deck and neck highly polished and the bumpy Crystal Ice everywhere else. It’s pretty much maintenance free, doesn’t slide around on my lap, and is very distinctive. Added bonus: the sides and back don’t seem to get quite as hot when playing outdoors on a bright, sunny day (which I do a lot of). Overall, the execution of the finish on this guitar is perfect.
    Bottom line: This is a remarkable guitar! Between the fanned-frets and the addition of the low string, it really provides a lot of possibilities beyond what I could do w/ standard 6 string acoustics. I use a lot of alternate tunings, and play a lot of different styles, and this is already upping my game and challenging me, all while simply being a joy to play. I’ll be installing an L.R. Baggs Active Element under-saddle system as well as a Tonewood Amp in the next few days, and having had considerable experience w/ both in the past, expect excellent results from both, but wanted this review to focus entirely on just the guitar in it’s most raw form. From a cost standpoint, I have yet to find any other production fan-fretted 7 string guitar from any builder, either carbon fiber or dead tree, so this is a value @ any price, but a steal @ Emerald’s price! Simply put, I cannot give this instrument enough praise; it truly is stellar! Fine work from a fine company!

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