Lower string action
Stepless action adjustment makes fretting notes and barre chords easier.
AdjustDynamic Action System
DAS Dynamic Action System
Exceptional feel.
Freedom in every performance.
What DAS brings to your playing
Great feel is personal.
Every player has a different touch, technique and preferred feel. DAS offers continuous, stepless adjustment, so you can find the string action that suits you within the supported range.
Feel that fits your style
Fine-tune the action for fingerstyle, singing with guitar or your own playing technique.
Easier setup adjustments
When temperature or humidity changes affect the feel, quickly readjust the action.
Your feel, your choice
Find an action that suits your touch, technique and preferences within the supported adjustment range.
Easy to readjust as conditions change
Humid seasons, heated rooms, travel and long-term use can affect action. Readjust DAS to restore the feel you know.
Less irreversible modification
Fine-tune the neck angle first, preserving the original saddle height and factory setup.
A less obtrusive neck heel
Enjoy more room for your fretting hand where the neck meets the body, especially when playing higher up the fingerboard.
How to use DAS
One hex key.
Your familiar feel.
The concealed adjuster at the neck joint lets you quickly change the neck angle and string height to achieve your preferred feel.
- 01
Locate the hex socket in the adjustment screw at the neck heel.
- 02
Insert the hex key supplied with your guitar.
- 03
Turn clockwise to lower the action, or counterclockwise to raise it.
More videos
Hear and feel the difference in real performances.
Explore different playing styles and musical approaches to see how string action changes the playing experience.
Performance videos
Jesson: low-action playing
An original American fingerstyle passage
Performance videos
Jesson: fast strumming
A little strumming, a lot of sound
Performance videos
Jesson: upper-fret playing
How gentle can an acoustic guitar sound?
Performance videos
Feifei: performance showcase
A high-energy guitar arrangement of “Tori no Uta”
Performance videos
Teacher Guo: upper-fret playing
Playing high up the fingerboard with a capo at the 12th fret
Expert reviews
DAS through expert eyes
Professional players and guitar media share their experiences and take a closer look at DAS technology.
Videos retain their original language; cover text has been translated.
0111
Hands-on impressions
哎妈呀老王
Revolutionary design! A tilting neck and adjustable feel — has Kepma done something unexpected? Kepma A1 DAS guitar review
Expert reviews
Minye's review
A 2026 A1GA review exploring the DAS adjustable neck joint and the guitar as a whole.
Expert reviews
Saiping at Fei Guitar's review
Rethinking the neck reset: a closer look at Kepma's DAS action adjustment system.
Expert reviews
Park Myung-hwan's review
Hands-on experience with the adjustable neck system on the Kepma A1 DAS.
Expert reviews
Teacher Guo's review
“When I could no longer adjust my guitar…” Teacher Guo tries DAS action adjustment.
Expert reviews
The Third Man's review
What is DAS, and why develop an adjustable neck? A look at the structure and the needs it addresses.
Hands-on impressions
Arno Plays Guitar
An in-depth look at the new all-solid Kepma A1 with DAS
Hands-on impressions
Tang Guitar Studio
A look at the upcoming Kepma A1 DAS
Hands-on impressions
Tongtong Guitar
“Slow Dancing in a Burning Room”: trying the new Kepma A1 DAS
Hands-on impressions
No. 8 Guitar Shop
What are the advantages of Kepma's DAS system?
Expert reviewsMore expert reviews
→More expert reviews
More to come
More first-hand experiences from players and guitar media are on the way.
Everyday uses
From daily practice to the spotlight.
01
Daily practice
Comfort that lastsMaintain a comfortable feel for longer practice sessions.
02
Advanced practice
Focus on your next breakthroughExplore very low action to make demanding techniques, including barre chords, easier.
03
Rehearsal & recording
Switch setups quicklyAdapt the action to your playing style for more efficient rehearsal and recording sessions.
04
Competitions & live shows
Play with confidenceCheck and fine-tune your setup before going on stage to restore your familiar feel.
Stepless string-height adjustment
8 reference feels
DAS adjustment is continuous and stepless. Levels 0–7 are reference ranges for string height and feel, not fixed mechanical settings. The main reference is the 6th-string action at the 12th fret; the 1st-string measurement is supplementary.
LEVEL 0
Extreme capability
- 6th string, 12th fret
- 1.3–1.6 mm
- 1st string, 12th fret
- 0.9–1.2 mm
A demonstration of the technical limits of DAS + PLEK for specialized, demanding pieces. Not a standard default setup.
LEVEL 1
Ultra-low action
- 6th string, 12th fret
- 1.6–1.9 mm
- 1st string, 12th fret
- 1.2–1.5 mm
For a light touch, fast position changes, barre chords and technical repertoire.
LEVEL 2
Low-action techniques
- 6th string, 12th fret
- 1.9–2.2 mm
- 1st string, 12th fret
- 1.4–1.7 mm
For advanced fingerstyle, intricate accompaniment and a lighter fretting-hand feel.
LEVEL 3
Professional comfort
- 6th string, 12th fret
- 2.2–2.5 mm
- 1st string, 12th fret
- 1.7–2.0 mm
Closer to many professional players' preferences, balancing feel, tone and dynamic range.
LEVEL 4
All-round versatility
- 6th string, 12th fret
- 2.5–2.8 mm
- 1st string, 12th fret
- 1.9–2.2 mm
For most singing, strumming and everyday playing situations.
LEVEL 5
Dynamic strumming
- 6th string, 12th fret
- 2.8–3.1 mm
- 1st string, 12th fret
- 2.1–2.4 mm
For a stronger picking hand, live accompaniment and vigorous strumming.
LEVEL 6
Bluegrass / strong picking
- 6th string, 12th fret
- 3.1–3.5 mm
- 1st string, 12th fret
- 2.3–2.7 mm
For flatpicked melodies, bluegrass and playing with a wide dynamic range.
LEVEL 7
Slide playing
- 6th string, 12th fret
- Above 3.5 mm
- 1st string, 12th fret
- Above 2.8 mm
For slide and open tunings, rather than conventional fretted-playing comfort.
How the adjustments differ
DAS and the two-way truss rod
The two systems address different aspects of the setup: the two-way truss rod controls neck relief, while DAS changes the neck-to-body angle and overall string action.
Two-way truss rod
- What it adjusts
- Neck curvature (relief)
- What it changes
- Changes neck relief
DAS Dynamic Action System
- What it adjusts
- The neck's angle relative to the body
- What it changes
- Directly changes overall string action
Two tasks. Two adjustments. One hex key.
The hex key is included with the guitar
Precision setup meets adjustable action
Great feel starts with the details
PLEK precision + DAS adjustability
Every detail counts
01
PLEK precision calibration
Neck relief, fret condition and action are carefully set before the guitar leaves the factory, giving every instrument a precise starting setup.
02
DAS Dynamic Action System
Readjust the neck angle as seasons, long-term use or your playing needs change to maintain your preferred action.
Questions & Answers
FAQ
Q01Can DAS stop a guitar from changing shape forever?＋
No. Wood responds to its environment and long-term string tension. This is a physical characteristic of acoustic guitars. DAS makes it easier to readjust and restore the setup after those changes.
Q02How does DAS differ from a two-way truss rod?＋
DAS changes the neck-joint angle to adjust action; the two-way truss rod controls neck relief. Keep a slight forward relief: with a string held down at the 14th fret, there should still be a small gap above the 6th fret, with an audible tap when you touch it. Different tunings create different tensions, so neck relief may also need adjustment.
Q03Can I adjust it myself?＋
Yes. Watch the official tutorial or adjustment guide before your first adjustment to get familiar with the process.
Q04Does adjustment affect the tone?＋
If the action is too low for your picking strength, fret buzz can interfere with string vibration and make the tone seem different.
Community reviews
What do players think of DAS?
From delicate fingerstyle to powerful strumming, every playing style has its own idea of great feel.
Original public reviewsHover to pause and read
* Screenshots come from public posts; names and avatars are masked, and visible text is translated. The comments on the right are illustrative copy based on common user feedback.
Fretting made easy
A naturally comfortable feel.
Exceptional feel.Freedom in every performance.